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Zhai C, Han L, Xiong C, Ge A, Yue X, Li Y, Zhou Z, Feng J, Ru J, Song J, Jiang L, Yang Y, Zhang L, Wan S. Soil microbial diversity and network complexity drive the ecosystem multifunctionality of temperate grasslands under changing precipitation. Sci Total Environ 2024; 906:167217. [PMID: 37751844 DOI: 10.1016/j.scitotenv.2023.167217] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Revised: 08/31/2023] [Accepted: 09/18/2023] [Indexed: 09/28/2023]
Abstract
Soil microbiomes play a critical role in regulating ecosystem multifunctionality. However, whether and how soil protists and microbiome interactions affect ecosystem multifunctionality under climate change is unclear. Here, we transplanted 54 soil monoliths from three typical temperate grasslands (i.e., desert, typical, and meadow steppes) along a precipitation gradient in the Mongolian Plateau and examined their response to nighttime warming, decreased, and increased precipitation. Across the three steppes, nighttime warming only stimulated protistan diversity by 15.61 (absolute change, phylogenetic diversity) but had no effect on ecosystem multifunctionality. Decreased precipitation reduced bacterial (8.78) and fungal (22.28) diversity, but significantly enhanced soil microbiome network complexity by 1.40. Ecosystem multifunctionality was reduced by 0.23 under decreased precipitation, which could be largely attributed to the reduced soil moisture that negatively impacted bacterial and fungal communities. In contrast, increased precipitation had little impact on soil microbial communities. Overall, both bacterial and fungal diversity and network complexity play a fundamental role in maintaining ecosystem multifunctionality in response to drought stress. Protists alter ecosystem multifunctionality by indirectly affecting microbial network complexity. Therefore, not only microbial diversity but also their interactions (regulated by soil protists) should be considered in evaluating the responses of ecosystem multifunctionality, which has important implications for predicting changes in ecosystem functioning under future climate change scenarios.
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Affiliation(s)
- Changchun Zhai
- School of Life Sciences, Institute of Life Science and Green Development, Hebei University, Baoding, Hebei 071002, China; State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Lili Han
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Chao Xiong
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Anhui Ge
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Xiaojing Yue
- School of Life Sciences, Institute of Life Science and Green Development, Hebei University, Baoding, Hebei 071002, China
| | - Ying Li
- School of Life Sciences, Henan University, Kaifeng, Henan 475004, China
| | - Zhenxing Zhou
- School of Life Sciences, Henan University, Kaifeng, Henan 475004, China
| | - Jiayin Feng
- School of Life Sciences, Institute of Life Science and Green Development, Hebei University, Baoding, Hebei 071002, China
| | - Jingyi Ru
- School of Life Sciences, Institute of Life Science and Green Development, Hebei University, Baoding, Hebei 071002, China
| | - Jian Song
- School of Life Sciences, Institute of Life Science and Green Development, Hebei University, Baoding, Hebei 071002, China
| | - Lin Jiang
- School of Biological Sciences, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Yunfeng Yang
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing, China
| | - Limei Zhang
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Shiqiang Wan
- School of Life Sciences, Institute of Life Science and Green Development, Hebei University, Baoding, Hebei 071002, China.
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Liu Y, Tian H, Li J, Wang H, Liu S, Liu X. Reduced precipitation neutralizes the positive impact of soil warming on soil microbial community in a temperate oak forest. Sci Total Environ 2022; 806:150957. [PMID: 34656582 DOI: 10.1016/j.scitotenv.2021.150957] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 10/08/2021] [Accepted: 10/09/2021] [Indexed: 06/13/2023]
Abstract
Changes in soil microbial community play an irreplaceable role in regulating nutrient cycling that shapes forest ecosystem responses to climate change. However, if the effect of experimental warming on soil microorganisms depends upon soil water availability, which is closely related to soil depth is generally not well decumented. We conducted an in situ simulation experiment in an oak forest to determine the response pattern of soil microbial community to manipulated drought and warming at different soil depths. The responses of soil microbial communities to reduced precipitation and soil warming were highly dependent upon soil depth. Reduced precipitation remarkably elevated top-soil microbial biomass carbon (MBC) and nitrogen (MBN) in the unwarmed plots but no effects occured in the warmed plots. Soil warming showed positive effects on top-soil MBC and MBN under ambient precipitation, whereas negative ones were found under decreased precipitation. Neither reduced precipitation nor soil warming displayed effects on sub-soil MBC and MBN. Reduced precipitation notably increased soil total phospholipid fatty acids (PLFA) as well as that of bacterial and gram-negative bacterial only at top-soil in the unwarmed plots. Soil warming showed positive effects on total PLFA, bacterial PLFA, and gram-negative bacterial PLFA at both top- and sub-soil under ambient precipitation. We found that the interactive effects of climate change on soil microorganisms varied with soil depth, indicating that multilayer soil models should be considered while assessing the relationship between soil and atmosphere carbon exchange. Further research is expected to explore the long-term response of soil microorganisms in soil vertical profiles to climate change.
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Affiliation(s)
- Yanchun Liu
- School of Life Sciences, Henan University, International Joint Research Laboratory for Global Change Ecology, Kaifeng, Henan 475004, China
| | - Huimin Tian
- School of Life Sciences, Henan University, International Joint Research Laboratory for Global Change Ecology, Kaifeng, Henan 475004, China
| | - JingRui Li
- School of Life Sciences, Henan University, International Joint Research Laboratory for Global Change Ecology, Kaifeng, Henan 475004, China
| | - Hui Wang
- Key Laboratory of Forest Ecology and Environment, China's National Forestry and Grassland Administration, Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, No. 2 Dongxiaofu, Haidian District, Beijing 100091, China
| | - Shirong Liu
- Key Laboratory of Forest Ecology and Environment, China's National Forestry and Grassland Administration, Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, No. 2 Dongxiaofu, Haidian District, Beijing 100091, China.
| | - Xiaojing Liu
- Baotianman Natural Reserve Administration, Neixiang, Henan 474350, China
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Zhou M, Yan G, Xing Y, Chen F, Zhang X, Wang J, Zhang J, Dai G, Zheng X, Sun W, Wang Q, Liu T. Nitrogen deposition and decreased precipitation does not change total nitrogen uptake in a temperate forest. Sci Total Environ 2019; 651:32-41. [PMID: 30223219 DOI: 10.1016/j.scitotenv.2018.09.166] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2018] [Revised: 09/11/2018] [Accepted: 09/12/2018] [Indexed: 05/22/2023]
Abstract
Decreased precipitation and increased anthropogenical by derived nitrogen (N) are important climate change factors that alter the availability of soil water and N which are crucial to root function and morphological traits. However, these factors are seldom explored in forests. To clarify how altered precipitation and N addition affect the uptake of organic and inorganic N by fine roots, a field hydroponic experiment using brief 15N exposures was conducted in a temperate forest in northern China. The root traits related to nutrient foraging (root morphology and mycorrhizal colonization) were measured simultaneously. Our results showed that all three tree species preferred ammonium (NH4+) over glycine and nitrate (NO3-), and NH4+ contributed 73% to the total N uptake from the soil. Uptake of glycine was higher than that of NO3-. Decreased precipitation, N addition, and their interaction increased NH4+ uptake rate compared with the control. Decreased precipitation decreased the glycine and NO3- uptake rate. Moreover, N addition, decreased precipitation and their interaction changed root morphological traits and significantly decreased mycorrhizal colonization. Although our treatments resulted in changes to the root traits and the forms of N uptake by plants, the total amount of N uptake did not change among all treatments. We conclude that although fine root traits of dominant tree species in temperate forests have high plasticity in response to climate change, nutrient balance in plants causes the total amount of N uptake to remain unchanged.
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Affiliation(s)
- Mingxin Zhou
- School of Forestry, Northeast Forestry University, 26 Hexing Road, Harbin 150040, China
| | - Guoyong Yan
- School of Forestry, Northeast Forestry University, 26 Hexing Road, Harbin 150040, China; College of Agricultural Resource and Environment, Heilongjiang University, 74 Xuefu Road, Harbin 150080, China
| | - Yajuan Xing
- College of Agricultural Resource and Environment, Heilongjiang University, 74 Xuefu Road, Harbin 150080, China; Institute of Forestry Science of Heilongjiang Province, 134 Haping Road, Harbin 150081, China
| | - Fei Chen
- School of Forestry, Northeast Forestry University, 26 Hexing Road, Harbin 150040, China
| | - Xin Zhang
- College of Agricultural Resource and Environment, Heilongjiang University, 74 Xuefu Road, Harbin 150080, China
| | - Jianyu Wang
- School of Forestry, Northeast Forestry University, 26 Hexing Road, Harbin 150040, China
| | - Junhui Zhang
- Institute of Applied Ecology, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China
| | - Guanhua Dai
- Institute of Applied Ecology, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China
| | - Xingbo Zheng
- Institute of Applied Ecology, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China
| | - Wenjing Sun
- School of Forestry, Northeast Forestry University, 26 Hexing Road, Harbin 150040, China
| | - Qinggui Wang
- School of Forestry, Northeast Forestry University, 26 Hexing Road, Harbin 150040, China; College of Agricultural Resource and Environment, Heilongjiang University, 74 Xuefu Road, Harbin 150080, China.
| | - Tong Liu
- School of Forestry, Northeast Forestry University, 26 Hexing Road, Harbin 150040, China.
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