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Wu XY, Shao J, Chen XP, Li JL, Hu DD, Zhong QL, Cheng DL. Nutrient content and resorption efficiency of leaves of broad-leaved trees along altitudes in Wuyi Mountains, China. Ying Yong Sheng Tai Xue Bao 2023; 34:2305-2313. [PMID: 37899094 DOI: 10.13287/j.1001-9332.202309.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 10/31/2023]
Abstract
To reveal the variation of leaf nutrient utilization strategies with altitude gradient in subtropical mountain broadleaved trees, 44 species of broadleaved trees at different altitudes (1400, 1600 and 1800 m) in Wuyi Mountains were selected to measure nutrient content, stoichiometric ratio, and nutrient resorption efficiency of green and senescent leaves, and analyzed their allometric growth relationships. The results showed that nitrogen (N) and phosphorus (P) contents in green leaves were significantly higher than those in senescent leaves, which increased with the increases of altitude. The average values of phosphorus resorption efficiency (PRE) and nitrogen resorption efficiency (NRE) were 48.3% and 34.9%, respectively. PRE was significantly higher than NRE. There was no significant difference in nutrient resorption efficiency with altitude. NRE had positive isokinetic growth with and mature leaf N content at low altitude (1400 m) and negative allometry growth with senescent leaf N content at high altitude (1800 m). PRE and N and P contents of senescent leaves had negative isokinetic growth at low altitude (1400 m) and negative allometry growth at high altitudes (1600 and 1800 m). PRE-NRE allometric growth index was 0.95 at each altitude. The nutrient contents of green and senescent leaves increased with the increases of altitude, but altitude did not affect nutrient resorption efficiency. Plants preferred to re-absorbed P from senescent leaves. Nutrient resorption efficiency of leaves at high altitude affected the nutrient status of senescent leaves.
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Affiliation(s)
- Xin-Yang Wu
- Institute of Geography, Fujian Normal University, Fuzhou 350007, China
- Fujian Provincial Key Laboratory of Plant Eco-physiology, Fujian Normal University, Fuzhou 350007, China
| | - Jing Shao
- Institute of Geography, Fujian Normal University, Fuzhou 350007, China
- Fujian Provincial Key Laboratory of Plant Eco-physiology, Fujian Normal University, Fuzhou 350007, China
| | - Xiao-Ping Chen
- Institute of Geography, Fujian Normal University, Fuzhou 350007, China
| | - Jin-Long Li
- Institute of Geography, Fujian Normal University, Fuzhou 350007, China
| | - Dan-Dan Hu
- Institute of Geography, Fujian Normal University, Fuzhou 350007, China
- Fujian Provincial Key Laboratory of Plant Eco-physiology, Fujian Normal University, Fuzhou 350007, China
| | - Quan-Lin Zhong
- Institute of Geography, Fujian Normal University, Fuzhou 350007, China
- Fujian Provincial Key Laboratory of Plant Eco-physiology, Fujian Normal University, Fuzhou 350007, China
- Key Laboratory of Eco-Geographic Processes of Humid Subtropical Tropics, Fujian Normal University, Fuzhou 350007, China
| | - Dong-Liang Cheng
- Institute of Geography, Fujian Normal University, Fuzhou 350007, China
- Key Laboratory of Eco-Geographic Processes of Humid Subtropical Tropics, Fujian Normal University, Fuzhou 350007, China
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Chen YG, LE XG, Chen YH, Cheng WX, DU JG, Zhong QL, Cheng DL. [Identification of the potential distribution area of Cunninghamia lanceolata in China under climate change based on the MaxEnt model]. Ying Yong Sheng Tai Xue Bao 2022; 33:1207-1214. [PMID: 35730078 DOI: 10.13287/j.1001-9332.202205.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Based on the distribution records of Cunninghamia lanceolata, we used the maximum Entropy (MaxEnt) model and geographic information system (GIS) methods, combined with environmental factors such as climate and terrain, to predict the potential distribution areas suitable for C. lanceolata under current and future climate scenarios. The results showed that annual precipitation was the most important factor driving the distribution of C. lanceolata. Under the current climate scenario, the total area of suitable for C. lanceolata growth was about 3.28 million km2, accounting for about 34.5% of the total land area of China. Among all the suitable areas, the lowly, intermediately, and highly suitable areas accounted for 18.3%, 29.7% and 52.0% of the total, respectively. Under future climate scenarios, the suitable area of C. lanceolata would increase, showing a clear trend of northward expansion in China. A concentrated and contiguous distribution region highly suitable for C. lanceolata would appear in the humid subtropical areas of southern China. The model was tested by the receiver operating characteristic curve (ROC). The average area under the curve of ROC of the training set was 0.91, showing high reliability.
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Affiliation(s)
- Yu-Guang Chen
- Key Laboratory for Humid Subtropical Eco-geographical Processes, Fujian Normal University, Fuzhou 350007, China
- Fujian Provincial Key Laboratory for Plant Eco-Physiology, Fujian Normal University, Fuzhou 350007, China
| | - Xin-Gui LE
- Yangjifeng National Nature Reserve Administration of Jiangxi Province, Guixi 335400, Jiangxi, China
| | - Yu-Han Chen
- School of Geographical Science, Fujian Normal University, Fuzhou 350007, China
| | - Wu-Xue Cheng
- Institute Geography and Resources Science, Sichuan Normal University, Chengdu 610101, China
- Key Laboratory of Land Resources Evaluation and Monitoring in Southwest of Ministry of Education, Sichuan Normal University, Chengdu 610068, China
| | - Jin-Gui DU
- Key Laboratory for Humid Subtropical Eco-geographical Processes, Fujian Normal University, Fuzhou 350007, China
- Fujian Provincial Key Laboratory for Plant Eco-Physiology, Fujian Normal University, Fuzhou 350007, China
| | - Quan-Lin Zhong
- Key Laboratory for Humid Subtropical Eco-geographical Processes, Fujian Normal University, Fuzhou 350007, China
- Fujian Provincial Key Laboratory for Plant Eco-Physiology, Fujian Normal University, Fuzhou 350007, China
| | - Dong-Liang Cheng
- Key Laboratory for Humid Subtropical Eco-geographical Processes, Fujian Normal University, Fuzhou 350007, China
- Fujian Provincial Key Laboratory for Plant Eco-Physiology, Fujian Normal University, Fuzhou 350007, China
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He RT, Zhong QL, Li BY, Cheng DL, Xu CB, Wang Y, Yu H, Chang YN. [Effects of combined nitrogen and phosphorus addition on fine root traits of young Machilus pauhoi forest]. Ying Yong Sheng Tai Xue Bao 2022; 33:337-343. [PMID: 35229506 DOI: 10.13287/j.1001-9332.202202.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Both nitrogen (N) and phosphorus (P) are the main limiting elements for plant growth in terrestrial ecosystems. Fine roots play a critical role in plant growth. To reveal the effects of combined N and P addition on fine root traits of Machilus pauhoi, we performed a field N and P addition experiment in the midmonth from April to September in 2016 and 2017 in a 3-year M. pauhoi forest (N and P supply ratios were 8:1, 10:1, 12:1, 15:1). Both fine root morphological traits (specific root length, specific root area, average diameter, root tissue density) and stoichiometric traits (total carbon content, total nitogen content and carbon-nitrogen ratio) were analyzed. The results showed that the effects of combined application of N and P on fine root raits varied with seasons. In June, fertilization significantly increased specific root area, total nitrogen content and specific root length of 0-1 mm fine root, but decreased root tissuse density, carbon-nitrogen ratio and average diameter of 0-1 mm root. The most obvious change of fine root traits in June was found under the treatment with a N and P supply ratio of 12:1. In December, combined N and P addition significantly increased root tissue density, total nitrogen content, carbon-nitrogen ratio as well as fine root biomass with the diameter of 0-1 mm. The results of principal component analysis showed that different N and P supply ratios exerted different effects on the relationships among fine root traits. Fine root traits were distributed at both ends of Axis 1 when treated with 12:1 N:P, while distributed at Axis 1 and Axis 2 under other treaments. There was a significant negative correlation between fine root average diameter variation and the relative plant growh rate. The relationship among fine root traits, and between fine root traits and the relative growth rate of plant biomass were optimally coordinated at the treament with a N:P ratio of 12:1.
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Affiliation(s)
- Rui-Tong He
- College of Geographical Sciences, Fujian Normal University, Fuzhou 350007, China
| | - Quan-Lin Zhong
- College of Geographical Sciences, Fujian Normal University, Fuzhou 350007, China
- State Key Laboratory Breeding Base of Humid Subtropical Mountain Ecology, Fuzhou 350007, China
- Fujian Province Key Laboratory of Plant Ecophysiology, Fujian Normal University, Fuzhou 350007, China
| | - Bao-Yin Li
- State Key Laboratory Breeding Base of Humid Subtropical Mountain Ecology, Fuzhou 350007, China
- Fujian Province Key Laboratory of Plant Ecophysiology, Fujian Normal University, Fuzhou 350007, China
| | - Dong-Liang Cheng
- College of Geographical Sciences, Fujian Normal University, Fuzhou 350007, China
- State Key Laboratory Breeding Base of Humid Subtropical Mountain Ecology, Fuzhou 350007, China
- Fujian Province Key Laboratory of Plant Ecophysiology, Fujian Normal University, Fuzhou 350007, China
| | - Chao-Bin Xu
- State Key Laboratory Breeding Base of Humid Subtropical Mountain Ecology, Fuzhou 350007, China
- Fujian Province Key Laboratory of Plant Ecophysiology, Fujian Normal University, Fuzhou 350007, China
| | - Yan Wang
- College of Geographical Sciences, Fujian Normal University, Fuzhou 350007, China
| | - Hua Yu
- College of Geographical Sciences, Fujian Normal University, Fuzhou 350007, China
- College of Oceanography, Minjiang University, Fuzhou 350108, China
| | - Yun-Ni Chang
- College of Geographical Sciences, Fujian Normal University, Fuzhou 350007, China
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Yang T, Zhong QL, Li BY, Cheng DL, Xu CB, Zhou YX, Zhang X, Zhou ZZ. [Effects of short-term combined application of ammonium nitrogen and nitrate nitrogen on the growth and leaf traits of Machilus pauhoi seedlings]. Ying Yong Sheng Tai Xue Bao 2022; 33:25-32. [PMID: 35224922 DOI: 10.13287/j.1001-9332.202201.026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Trees are characterized with selective absorption of different forms of nitrogen. Ammonium nitrogen (NH4+-N) and nitrate nitrogen (NO3--N) are the main forms of nitrogen for plant absorption. We examined the differences of absorption between NH4+-N and NO3--N for 1-year-old Machilus pauhoi seedlings planted in local hilly red soil in a pot experiment. A controlled experiment with 7 different NH4+-N/NO3--N treatments was conducted, to study the effects of nitrogen forms and different NH4+-N/NO3--N ratios on the growth and leaf traits of M. pauhoi seedlings. The results showed that there were no significant differences in the relative growth rate of ground diameter (GD), plant height (TH), and biomass (RGR) of M. pauhoi seedlings with different NH4+-N/NO3--N ratios for four months, but these parameters were relatively high under the treatment of NH4+-N:NO3--N=5:5. The seedlings of M. pauhoi didn't show obvious preference for NH4+-N and NO3--N in short term. The extremely low NH4+-N/NO3--N ratio application was unsuitable for their growth. Different NH4+-N/NO3--N application had significant effects on leaf area (LA), specific leaf area (SLA), leaf dry matter content (LDMC), leaf relative water content (LRWC), net photosynthetic rate (Pn), intercellular CO2 concentration (Ci), water use efficiency (WUE), and photosynthetic nitrogen use efficiency (PNUE). M. pauhoi seedlings under the treatment of NH4+-N:NO3--N=1:9 had the highest LA, SLA, Pn, WUE and PNUE. However, the seedlings under the treatment of NH4+-N:NO3--N=9:1 had the lowest LDMC, leaf tissue density (LTD), LRWC and Ci. Different NH4+-N/NO3--N combined application did not affect leaf nitrogen content (LN) and leaf phosphorus content (LP), which were highest under the treatment of NH4+-N:NO3--N=5:5. Across different NH4+-N/NO3--N combined treatments, GD, TH, and RGR were significantly negatively correlated with SLA, while both GD and RGR were significantly negatively correlated with PNUE. Our results could provide theoretical basis for precise nutrient management and high-efficiency cultivation techniques during the seedling stage of the M. pauhoi.
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Affiliation(s)
- Ting Yang
- College of Geographical Sciences, Fujian Normal University, Fuzhou 350007, China
| | - Quan-Lin Zhong
- College of Geographical Sciences, Fujian Normal University, Fuzhou 350007, China
- Breeding Base of State Key Laboratory of Humid Subtropical Mountain Ecology, Fuzhou 350007, China
- Fujian Province Key Laboratory of Plant Ecophysiology, Fujian Normal University, Fuzhou 350007, China
| | - Bao-Yin Li
- Breeding Base of State Key Laboratory of Humid Subtropical Mountain Ecology, Fuzhou 350007, China
- Fujian Province Key Laboratory of Plant Ecophysiology, Fujian Normal University, Fuzhou 350007, China
| | - Dong-Liang Cheng
- College of Geographical Sciences, Fujian Normal University, Fuzhou 350007, China
- Breeding Base of State Key Laboratory of Humid Subtropical Mountain Ecology, Fuzhou 350007, China
- Fujian Province Key Laboratory of Plant Ecophysiology, Fujian Normal University, Fuzhou 350007, China
| | - Chao-Bin Xu
- College of Geographical Sciences, Fujian Normal University, Fuzhou 350007, China
| | - Yu-Xing Zhou
- College of Geographical Sciences, Fujian Normal University, Fuzhou 350007, China
| | - Xue Zhang
- College of Geographical Sciences, Fujian Normal University, Fuzhou 350007, China
| | - Zong-Zhe Zhou
- Anxi Fengtian State Owned Forest Farm, Anxi 362411, Fujian, China
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Shao J, Chen XP, Li JL, Hu DD, Wang MT, Zhong QL, Cheng DL. [Nitrogen and phosphorus contents and resorption efficiency of thirty broadleaved woody plants in Yangjifeng, Jiangxi, China.]. Ying Yong Sheng Tai Xue Bao 2021; 32:1193-1200. [PMID: 33899387 DOI: 10.13287/j.1001-9332.202104.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Nutrient resorption is an important strategy of nutrient conservation, which reflecting the ability of plants to conserve and utilize nutrients and adapt to environment. To explore the relationship between nutrient content and nutrient resorption of broadleaved woody species of different life forms (i.e., evergreen vs. deciduous), we sampled 30 broadleaved woody species in subtropical region of China located in Yangjifeng National Nature Reserve, Jiangxi Province. The nitrogen (N) and phosphorus (P) concentrations in green and senescent leaves of each species were measured to calculate nutrient resorption efficiency. Furthermore, we analyzed the relationship of leaf nutrient concentration and resorption efficiency for the different life forms. The results showed that N and P concentrations in green leaves were significantly higher in deciduous trees than those in evergreen trees. The P concentrations of senescent leaves in deciduous woody species was significantly higher than that in evergreen woody species. There was no significant difference of N concentration in senescent leaves between evergreen and deciduous species. Nitrogen resorption efficiency (NRE) and phosphorus resorption efficiency (PRE) of the 30 broadleaved woody species were 49.6% and 50.9%, respectively. There were no significant differences between the NRE and PRE of evergreen and deciduous species. NRE and PRE negatively correlated with N and P concentrations in senescent leaves, respectively. Additionally, evergreen and deciduous species showed similar relationships between nutrient resorption efficiency and nutrient concentration in senescent leaves. The sca-ling exponent of allometric relationship between NRE and PRE was 1.18 across all the species. The nutrient resorption efficiency of all the species were affected by the nutrient status of the senesced leaves. Plants examined in this study generally re-absorbed P from senescing leaves than N.
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Affiliation(s)
- Jing Shao
- Fujian Provincial Key Laboratory of Plant Ecophysiology, Fujian Normal University, Fuzhou 350007, China
| | - Xiao-Ping Chen
- Fujian Provincial Key Laboratory of Plant Ecophysiology, Fujian Normal University, Fuzhou 350007, China
| | - Jin-Long Li
- Fujian Provincial Key Laboratory of Plant Ecophysiology, Fujian Normal University, Fuzhou 350007, China
| | - Dan-Dan Hu
- Fujian Provincial Key Laboratory of Plant Ecophysiology, Fujian Normal University, Fuzhou 350007, China
- Institute of Geography, Fujian Normal University, Fuzhou 350007, China
| | - Man-Tang Wang
- Fujian Provincial Key Laboratory of Plant Ecophysiology, Fujian Normal University, Fuzhou 350007, China
- School of City and Civil Enginee-ring, Zaozhuang University, Zaozhuang 277160, Shandong, China
| | - Quan-Lin Zhong
- Fujian Provincial Key Laboratory of Plant Ecophysiology, Fujian Normal University, Fuzhou 350007, China
- Institute of Geography, Fujian Normal University, Fuzhou 350007, China
| | - Dong-Liang Cheng
- Fujian Provincial Key Laboratory of Plant Ecophysiology, Fujian Normal University, Fuzhou 350007, China
- Institute of Geography, Fujian Normal University, Fuzhou 350007, China
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Yang T, Zhong QL, Li BY, Cheng DL, Xu CB, Yu H, Zou YX. [Stoichiometry of carbon, nitrogen and phosphorus and their allometric relationship between leaves and fine roots of three functional tree seedlings.]. Ying Yong Sheng Tai Xue Bao 2021; 31:4051-4057. [PMID: 33393241 DOI: 10.13287/j.1001-9332.202012.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
We analyzed the contents and stoichiometric ratios of carbon (C), nitrogen (N) and phosphorus (P) in leaves and fine roots of Machilus pauhoi (an evergreen broad-leaved species), Cerasus campanulata (a deciduous broad-leaved species) and Fokienia hodginsii (an evergreen coniferous species) to compare the leaf and root stoichiometry and allometric relationship between different functional groups of trees. There were significant difference in the contents and stoichiometry of C, N and P in the leaves and fine roots among different functional groups. C content, C/N and C/P of the leaves and roots were the highest in M. pauhoi. N content and N/P of the leaves and roots were the highest in C. campanulata, whereas P content of the leaves and roots was the highest in F. hodginsii. The allometric relationship of C, N and P contents as well as their stoichiometric ratios between the leaves and fine roots showed significant difference, which was affected by functional difference. The allometric relationship between C/P and N/P with significantly different allometric indexes in leaves in seedlings of those three tree species, while the isometric relationship between the contents of N and P was found in fine roots. There were significant difference in the C, N and P stoichiometry between the leaves and fine roots. The allometric relationship between leaf C content and root P content in M. pauhoi was detected. C and N contents and C/N, N/P in leaves generally had the allometric or isokinetic relationships with C/N, N/P of fine roots. There were allometric relationships between the leaf C content and the root C, N and P contents in F. hodginsii. It was concluded that nutrient allocation between leaves and fine roots of C. campanulata was more strongly coordinated. The investment strategy of P for leaves and fine roots across those three tree species was similar. The results provided scientific reference for accurate nutrient management at seedling stage and efficient cultivation technique.
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Affiliation(s)
- Ting Yang
- College of Geographical Sciences, Fujian Normal University, Fuzhou 350007, China
| | - Quan-Lin Zhong
- College of Geographical Sciences, Fujian Normal University, Fuzhou 350007, China.,Breeding Base of State Key Laboratory of Humid Subtropical Mountian Ecology, Fuzhou 350007, China.,Fujian Province Key Laboratory of Plant Ecophysiology, Fujian Normal University, Fuzhou 350007, China
| | - Bao-Yin Li
- Breeding Base of State Key Laboratory of Humid Subtropical Mountian Ecology, Fuzhou 350007, China.,Fujian Province Key Laboratory of Plant Ecophysiology, Fujian Normal University, Fuzhou 350007, China
| | - Dong-Liang Cheng
- College of Geographical Sciences, Fujian Normal University, Fuzhou 350007, China.,Breeding Base of State Key Laboratory of Humid Subtropical Mountian Ecology, Fuzhou 350007, China.,Fujian Province Key Laboratory of Plant Ecophysiology, Fujian Normal University, Fuzhou 350007, China
| | - Chao-Bin Xu
- Breeding Base of State Key Laboratory of Humid Subtropical Mountian Ecology, Fuzhou 350007, China.,Fujian Province Key Laboratory of Plant Ecophysiology, Fujian Normal University, Fuzhou 350007, China
| | - Hua Yu
- College of Geographical Sciences, Fujian Normal University, Fuzhou 350007, China.,College of Oceanography, Minjiang University, Fuzhou 350108, China
| | - Yu-Xing Zou
- College of Geographical Sciences, Fujian Normal University, Fuzhou 350007, China
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Chen LJ, Zhong QL, Li BY, Yao XM, Xu CB, Cheng DL, Zheng YF, Yu H. [Relationship between the main functional traits of fine root and the rhizosphere soil nutrients of different diameter classes in Zenia insignis plantation.]. Ying Yong Sheng Tai Xue Bao 2019; 30:3627-3634. [PMID: 31833674 DOI: 10.13287/j.1001-9332.201911.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Fine roots are sensitive to changes in the soil environment, and play an important role in plant growth and development. To clarify the relationship between fine root traits and rhizosphere soil nutrient characteristics, fine roots of trees belonging to different diameter classes in six-year-old Zenia insignis plantation were sampled. The results showed that root biomass, root length density and root volume density increased with the increases of diameter class. Specific root length and specific root area showed the trend of first rising and then falling and rising again with the increases of diameter class. Root tissue density did not change with diameter class. There were significant diffe-rences in soil pH, water content, total carbon, total phosphorus, ammonium nitrogen, nitrate nitrogen and total available nitrogen contents of rhizosphere soil belonging to different diameter classes. The concentrations of soil total carbon, total nitrogen, nitrate nitrogen and total available nitrogen in the rhizosphere soil of large diameter trees were relatively higher, while the soil water content, total phosphorus and ammonium nitrogen contents of small diameter trees were relatively higher. The concentrations of soil total nitrogen, total carbon, nitrate nitrogen and total available nitrogen were significantly positively correlated with root biomass, root length density and root volume density. The concentrations of soil total phosphorus was significantly positively correlated with root tissue density of fine roots, but negatively correlated with specific root length and specific root area. Soil water content was significantly positively correlated with root biomass and root volume density. Soil pH was significantly positively correlated with the specific root length and specific root area of fine roots, but negatively correlated with root tissue density. Our results provide scientific basis for the selection of excellent germplasm resources of Z. insignis.
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Affiliation(s)
- Liu-Juan Chen
- College of Geographical Sciences, Fujian Normal University, Fuzhou 350007, China
| | - Quan-Lin Zhong
- College of Geographical Sciences, Fujian Normal University, Fuzhou 350007, China
- State Key Laboratory Breeding Base of Humid Subtropical Mountian Ecology,Fuzhou 350007, China
- Fujian Province Key Laboratory of Plant Ecophysiology, Fujian Normal University, Fuzhou 350007, China
| | - Bao-Yin Li
- State Key Laboratory Breeding Base of Humid Subtropical Mountian Ecology,Fuzhou 350007, China
- Fujian Province Key Laboratory of Plant Ecophysiology, Fujian Normal University, Fuzhou 350007, China
| | - Xiang-Ming Yao
- Shunchang County Forestry Science and Technology Center of Fujian Province, Shunchang 353200, Fujian, China
| | - Chao-Bin Xu
- State Key Laboratory Breeding Base of Humid Subtropical Mountian Ecology,Fuzhou 350007, China
- Fujian Province Key Laboratory of Plant Ecophysiology, Fujian Normal University, Fuzhou 350007, China
| | - Dong-Liang Cheng
- College of Geographical Sciences, Fujian Normal University, Fuzhou 350007, China
- State Key Laboratory Breeding Base of Humid Subtropical Mountian Ecology,Fuzhou 350007, China
- Fujian Province Key Laboratory of Plant Ecophysiology, Fujian Normal University, Fuzhou 350007, China
| | - Yue-Fang Zheng
- College of Geographical Sciences, Fujian Normal University, Fuzhou 350007, China
| | - Hua Yu
- College of Geographical Sciences, Fujian Normal University, Fuzhou 350007, China
- College of Oceanography, Minjiang University, Fuzhou 350108, China
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Lu YM, Wang MT, Chen XP, Lyu M, Zhong QL, Cheng DL. [Effects of the current-year shoot stem configuration on leaf biomass in different canopy heights of woody plants in evergreen broad-leaved forest in Jiangxi Province, China.]. Ying Yong Sheng Tai Xue Bao 2019; 30:3653-3661. [PMID: 31833677 DOI: 10.13287/j.1001-9332.201911.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
To investigate the effects of stem configuration on leaf biomass allocation in different organs of the current-year shoots at different canopy heights, relationships of biomass in different organs (i.e., leaves, stems, and twigs) and stem configuration (i.e., stem diameter, length, width/length, stem volume and stem density) were analyzed using the data of 69 woody species from the Yangjifeng Natural Reserve, Jiangxi Provence. Standardized major axis (SMA) was used to explore the regression between biomass and stem configuration. The results showed that there was no significant difference in leaf biomass, stem biomass, twig biomass, stem diameter, stem length, stem width/length and stem volume of current year shoots from upper and lower canopy heights and life forms (i.e., evergreen and deciduous woody plants). Stem density differed significantly in the current year shoots at different heights for both evergreen and deciduous woody species. There were isometric relationships among leaf, stem and total biomass of shoots in different canopy heights and in different life forms. Leaf biomass scaled allometrically with stem diameter and volume, with the scaling exponents being not different significantly among different canopy heights. With respect to the stem configuration of the twigs, stem length, stem width/length and stem density contributed less than 24% to the leaf biomass variation in the current-year shoots. On the contrary, stem diameter and volume had greater effects on leaf biomass of the current-year shoots than stem length, stem width/length and stem density. Canopy heights did not significantly affect the allometric scaling relationships between the stem configuration and leaf biomass of the current-year shoots.
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Affiliation(s)
- Yi-Miao Lu
- Fujian Provincial Key Laboratory of Plant Ecophysiology, Fujian Normal University, Fuzhou 350007, China
| | - Man-Tang Wang
- Fujian Provincial Key Laboratory of Plant Ecophysiology, Fujian Normal University, Fuzhou 350007, China
- School of City and Civil Engineering, Zaozhuang University, Zaozhuang 277160, Shandong, China
| | - Xiao-Ping Chen
- Fujian Provincial Key Laboratory of Plant Ecophysiology, Fujian Normal University, Fuzhou 350007, China
| | - Min Lyu
- Fujian Provincial Key Laboratory of Plant Ecophysiology, Fujian Normal University, Fuzhou 350007, China
| | - Quan-Lin Zhong
- Fujian Provincial Key Laboratory of Plant Ecophysiology, Fujian Normal University, Fuzhou 350007, China
- Institute of Geography, Fujian Normal University, Fuzhou 350007, China
| | - Dong-Liang Cheng
- Fujian Provincial Key Laboratory of Plant Ecophysiology, Fujian Normal University, Fuzhou 350007, China
- Institute of Geography, Fujian Normal University, Fuzhou 350007, China
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Li M, Zheng Y, Fan R, Zhong Q, Cheng D. Scaling relationships of twig biomass allocation in Pinus hwangshanensis along an altitudinal gradient. PLoS One 2017; 12:e0178344. [PMID: 28552954 PMCID: PMC5446166 DOI: 10.1371/journal.pone.0178344] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2016] [Accepted: 05/11/2017] [Indexed: 11/19/2022] Open
Abstract
Understanding the response of biomass allocation in twigs (the terminal branches of current-year shoots) to environmental change is crucial for elucidating forest ecosystem carbon storage, carbon cycling, and plant life history strategies under a changing climate. On the basis of interspecies investigations of broad-leaved plants, previous studies have demonstrated that plants respond to environmental factors by allocating biomass in an allometric manner between support tissues (i.e., stems) and the leaf biomass of twigs, where the scaling exponent (i.e., slope of a log-log linear relationship, α) is constant, and the scaling constant (i.e., intercept of a log-log linear relationship, log β) varies with respect to environmental factors. However, little is known about whether the isometric scaling exponents of such biomass allocations remain invariant for single species, particularly conifers, at different altitudes and in different growing periods. In this study, we investigated how twig biomass allocation varies with elevation and period among Pinus hwangshanensis Hsia trees growing in the mountains of Southeast China. Specifically, we explored how twig stem mass, needle mass, and needle area varied throughout the growing period (early, mid-, late) and at three elevations in the Wuyi Mountains. Standardized major axis analysis was used to compare the scaling exponents and scaling constants between the biomass allocations of within-twig components. Scaling relationships between these traits differed with growing period and altitude gradient. During the different growing periods, there was an isometric scaling relationship, with a common slope of 1.0 (i.e., α ≈ 1.0), between needle mass and twig mass (the sum of the total needle mass and the stem mass), whereas there were allometric scaling relationships between the stem mass and twig mass and between the needle mass and stem mass of P. hwangshanensis. The scaling constants (log β) for needle mass vs. twig mass and for needle mass vs. stem mass increased progressively across the growing stages, whereas the scaling constants of stem mass vs. twig mass showed the opposite pattern. The scaling exponents (α) of needle area with respect to needle biomass increased significantly with growing period, changing from an allometric relationship (i.e., α < 1.0) during the early growing period to a nearly isometric relationship (i.e., α ≈ 1.0) during the late growing period. This change possibly reflects the functional adaptation of twigs in different growing periods to meet their specific reproductive or survival needs. At different points along the altitudinal gradient, the relationships among needle mass, twig mass, and stem mass were all isometric (i.e., α ≈ 1.0). Moreover, significant differences were found in scaling constants (log β) along the altitudinal gradient, such that species had a smaller stem biomass but a relatively larger needle mass at low altitude. In addition, the scaling exponents remained numerically invariant among all three altitudes, with a common slope of 0.8, suggesting that needle area failed to keep pace with the increasing needle mass at different altitudes. Our results indicated that the twig biomass allocation pattern was significantly influenced by altitude and growing period, which reflects the functional adaptation of twigs to meet their specific survival needs under different climatic conditions.
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Affiliation(s)
- Man Li
- Fujian Provincial Key Laboratory of Plant Ecophysiology, Fujian Normal University, Fuzhou, Fujian Province, China
- Key Laboratory of Humid Subtropical Eco-geographical Process, Ministry of Education, Fuzhou, Fujian Province, China
| | - Yuan Zheng
- Fujian Provincial Key Laboratory of Plant Ecophysiology, Fujian Normal University, Fuzhou, Fujian Province, China
- Key Laboratory of Humid Subtropical Eco-geographical Process, Ministry of Education, Fuzhou, Fujian Province, China
| | - RuiRui Fan
- Fujian Provincial Key Laboratory of Plant Ecophysiology, Fujian Normal University, Fuzhou, Fujian Province, China
- Key Laboratory of Humid Subtropical Eco-geographical Process, Ministry of Education, Fuzhou, Fujian Province, China
| | - QuanLin Zhong
- Key Laboratory of Humid Subtropical Eco-geographical Process, Ministry of Education, Fuzhou, Fujian Province, China
| | - DongLiang Cheng
- Fujian Provincial Key Laboratory of Plant Ecophysiology, Fujian Normal University, Fuzhou, Fujian Province, China
- Key Laboratory of Humid Subtropical Eco-geographical Process, Ministry of Education, Fuzhou, Fujian Province, China
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Abstract
The WBE theory proposed by West, Brown and Enquist predicts that larger plant respiration rate, R, scales to the three-quarters power of body size, M. However, studies on the R versus M relationship for larger plants (i.e. trees larger than saplings) have not been reported. Published respiration rates of field-grown trees (saplings and larger trees) were examined to test this relationship. Our results showed that for larger trees, aboveground respiration rates RA scaled as the 0.82-power of aboveground biomass MA, and that total respiration rates RT scaled as the 0.85-power of total biomass MT, both of which significantly deviated from the three-quarters scaling law predicted by the WBE theory, and which agreed with 0.81-0.84-power scaling of biomass to respiration across the full range of measured tree sizes for an independent dataset reported by Reich et al. (Reich et al. 2006 Nature 439, 457-461). By contrast, R scaled nearly isometrically with M in saplings. We contend that the scaling exponent of plant metabolism is close to unity for saplings and decreases (but is significantly larger than three-quarters) as trees grow, implying that there is no universal metabolic scaling in plants.
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Affiliation(s)
- Dong-Liang Cheng
- Key Laboratory of Humid Subtropical Eco-geographical Process, Fujian Normal University, Ministry of Education, Fuzhou, Fujian Province 350007, Republic of China.
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Zhong QL, Cheng DL, Hu SZ, He LZ, Tang CC, Wen YX, Qiu JF, Li XH. [Chlorophyll content and net photosynthetic rate of Machilus pauhoi and M. leptophylla]. Ying Yong Sheng Tai Xue Bao 2009; 20:271-276. [PMID: 19459363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
By using SPAD-502 chlorophyll meter, LI-6400 portable photosynthesis system, and spectrophotometer, the leaf SPAD value, net photosynthetic rate (Pn), and chlorophyll (a + b) content (Ct) of 3-year-old Machilus pauhoi and M. leptophylla seedlings were measured, and the relationships of SPAD value with Pn and Ct were analyzed. The M. pauhoi seedlings were grown from the seeds originated from Suichuan County of Jiangxi Province and Jian'ou County of Fujian Province, named as MPS and MPJ, respectively; while the M. leptophylla seedlings were grown from the seeds originated from Shangyou County of Jiangxi Province, named as MLG. There were significant differences in the mean chlorophyll content of MPS, MPJ, and MLG. The SPAD value and the contents of chlorophyll (a + b) (Ct), chlorophyll a (Ca) and chlorophyll b (Cb) were in the order of MPS < MLG < MPJ, with the mean SPAD value being 43.80, 45.12, and 50.67 and the Ct value being 1.944, 2.831, and 3.447 mg c g(-1), respectively. The chlorophyll content was influenced by the maturing degree of mesophyll tissues of M. pauhoi and M. leptophylla, being lower in current-year leaves than in 2-year-old leaves. The Ct of same age leaves at different crown layers of MPS and MPJ and of MLG was in the order of upper layer < middle layer < lower layer and of upper layer < lower layer < middle layer, respectively, and the SPAD value of the same lamina at different positions was in the order of apex < middle < base. SPAD value had a significant positive linear correlation with Ct, and a statistically not significant positive correlation with Pn.
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Affiliation(s)
- Quan-Lin Zhong
- Fujian Provincial Key Laboratory of Subtropical Resources and Environment, College of Geography Science, Fujian Normal University, Fuzhou 350007, China.
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