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Perron T, Legrand M, Janeau JL, Manizan A, Vierling C, Kouakou A, Brauman A, Gay F, Laclau JP, Mareschal L. Runoff and soil loss are drastically decreased in a rubber plantation combining the spreading of logging residues with a legume cover. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 913:169335. [PMID: 38103613 DOI: 10.1016/j.scitotenv.2023.169335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 11/11/2023] [Accepted: 12/11/2023] [Indexed: 12/19/2023]
Abstract
Soil erosion on agricultural land is a major threat for food and raw materials production. It has become a major concern in rubber (Hevea brasiliensis) plantations introduced on sloping ground. Alternative agroecological crop management practices must be investigated. One aim of our study was to assess the ability of logging residues (i.e., trunks, branches, leaves and stumps of a clearcut plantation) and of legume cover (Pueraria phaseoloides) to mitigate N, P and K losses through runoff and soil detachment in a young rubber plantation. The other aim was to investigate the relationships of these nutrient losses with soil structure and soil macrofauna diversity. Runoff and soil loss were monitored for 3 years using 1-m2 plots under different practices as regards the management of logging residues and the use or not of a legume. The monitoring started when rubber trees were one-year-old. The planting row, where soil was bare, was the hotspot of soil erosion, with an average runoff of 832 mm y-1 and soil loss of 3.2 kg m-2 y-1. Sowing a legume in the inter-row reduced runoff and soil loss by 88 % and 98 % respectively, compared to bare soil. Spreading logging residues as well as growing a legume cover almost eliminated runoff and soil detachment (19 mm y-1 and 4 g m-2 y-1 respectively). Nutrient losses were negligible as long as the soil surface was covered by a legume crop, with or without logging residues. Total N loss from soil detachment ranged from 0.02 to 0.2 g m-2 y-1, for example. Spreading logging residues in the inter-rows significantly improved soil structure and soil macrofauna diversity compared to bare soil. Nutrient losses from runoff and soil detachment were negatively correlated with improved soil structure and soil macrofauna diversity. We recommend investigating alternative ways to manage planting rows.
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Affiliation(s)
- Thibaut Perron
- CIRAD, UMR ABSys, F-34398 Montpellier, France; ABSys, Univ Montpellier, CIHEAM-IAMM, CIRAD, INRAE, Institut Agro, Montpellier, France; SAPH, Direction of Industrial Plantations (DPI), Cote d'Ivoire.
| | - Marianne Legrand
- Eco&Sols, Univ. Montpellier, CIRAD, INRAE, Institut Agro, IRD, Montpellier, France; CIRAD, UMR Eco&Sols, F-34398 Montpellier, France; INRAE, EMMAH, UMR 1114 INRAE-Avignon University, Domaine Saint Paul, F-84914 Avignon cedex 09, France
| | - Jean-Louis Janeau
- Institute of Ecology and Environmental Sciences (iEES-Paris), IRD, Sorbonne Université, CNRS, INRAE, Université Paris Diderot, Paris, France
| | - Antoine Manizan
- SOGB, Agricultural technique, auditing and Organisation Department (DTAO), SOCFIN, Côte d'Ivoire
| | - Cécile Vierling
- Eco&Sols, Univ. Montpellier, CIRAD, INRAE, Institut Agro, IRD, Montpellier, France; CIRAD, UMR Eco&Sols, F-34398 Montpellier, France; AgroParisTech, 22 place de l'Agronomie, 91123 Palaiseau Cedex, France
| | - Aymard Kouakou
- Eco&Sols, Univ. Montpellier, CIRAD, INRAE, Institut Agro, IRD, Montpellier, France; Nangui Abrogoua University, Ecology and Sustainable Development Laboratory, Abidjan, Côte d'Ivoire
| | - Alain Brauman
- Eco&Sols, Univ. Montpellier, CIRAD, INRAE, Institut Agro, IRD, Montpellier, France
| | - Frédéric Gay
- CIRAD, UMR ABSys, F-34398 Montpellier, France; ABSys, Univ Montpellier, CIHEAM-IAMM, CIRAD, INRAE, Institut Agro, Montpellier, France
| | - Jean-Paul Laclau
- Eco&Sols, Univ. Montpellier, CIRAD, INRAE, Institut Agro, IRD, Montpellier, France; CIRAD, UMR Eco&Sols, F-34398 Montpellier, France
| | - Louis Mareschal
- Eco&Sols, Univ. Montpellier, CIRAD, INRAE, Institut Agro, IRD, Montpellier, France; CIRAD, UMR Eco&Sols, F-34398 Montpellier, France
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Owusu SM, Adomako MO, Qiao H. Organic amendment in climate change mitigation: Challenges in an era of micro- and nanoplastics. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 907:168035. [PMID: 37907110 DOI: 10.1016/j.scitotenv.2023.168035] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 10/18/2023] [Accepted: 10/20/2023] [Indexed: 11/02/2023]
Abstract
As a global strategy for mitigating climate change, organic amendments play critical roles in restoring stocks in carbon (C) depleted soils, preserving existing stocks to prevent further soil organic carbon (SOC) loss, and enhancing C sequestration. However, recent emerging evidence of a significant proportion of micro- and nanoplastics (M/NPs) occurrence in most organic substrates (e.g., compost manure, farmyard manure, and sewage sludge) compromises its role in climate change mitigation. Given the predicted surge of soil M/NPs proliferation in the coming years, we argued whether organic amendment remains a reliable climate change mitigation strategy. Toxicity effects of M/NPs influx within the soil matrix disrupt plants and their associated key microbial taxa responsible for crucial biogeochemical processes and restructuring of SOC, leading to increasing emissions of potent greenhouse gases (GHGs, e.g., CO2, CH4, and N2O) that feedback to aggravate the rapidly changing climate. Here, we summarize evidence based on literature that the discovery of M/NPs in organic substrates compromises its role in the climate change mitigation strategy. We briefly discuss the overview of synthetic fertilizers and their impact on SOC and atmospheric emissions. We discuss the role of organic amends in climate change mitigation and the emergence of M/NPs in it. We discuss M/NPs-induced damages to SOC and subsequent emissions of GHGs. We briefly highlight management approaches to clean organic substrates of M/NPs to improve their use in agrosystems and provide recommendations for future research studies. We found that organic amendment plays pivotal role in modulating the biotic and abiotic drivers responsible for climate mitigation. However, M/NPs in organic amendments weaken the regulatory mechanisms of organic amendments in plant-soil systems. We conclude that organic amendments of soils are critical for restoring SOC and mitigating the rapidly changing climate; yet, the discovery of M/NPs in organic substrates put their usage in a dilemma.
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Affiliation(s)
- Samuel Mensah Owusu
- Schoo of Business, Jinggangshan University, Qingyuan District, Ji'an City 343009, Jiangxi, China.
| | - Michael Opoku Adomako
- Institute of Wetland Ecology & Clone Ecology/Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, Taizhou University, Taizhou 318000, Zhejiang, China
| | - Hu Qiao
- Schoo of Business, Jinggangshan University, Qingyuan District, Ji'an City 343009, Jiangxi, China
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Kouakou AK, Cortet J, Kolo Y, Brauman A. Using Trait-Based Approaches to Assess the Response of Epedaphic Collembola to Organic Matter Management Practices: A Case Study in a Rubber Plantation in South-Eastern Côte d'Ivoire. INSECTS 2022; 13:892. [PMID: 36292840 PMCID: PMC9604168 DOI: 10.3390/insects13100892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 09/13/2022] [Accepted: 09/27/2022] [Indexed: 06/16/2023]
Abstract
We used trait-based approaches to reveal the functional responses of springtails communities to organic matter inputs in a rubber plantation in Côte d’Ivoire. Pitfall traps were used to sample springtails in each practice. The results showed that the total abundance of springtails increased significantly with the amount of organic matter (R0L0 < R2L1). Larger springtails (body length, furca and antennae) were observed in plots with high organic matter. Practices with logging residues and legume recorded the highest functional richness. The principal coordinate analysis showed different functional composition patterns between practices with logging residues (R1L1 and R2L1) and those without inputs (R0L0 and R0L1). This difference in functional composition (PERMANOVA analysis) was related to the effect of practices. These results highlight the pertinence of the functional trait approach in the characterization of springtail communities, a bioindicator of soil health, for organic matter management practice.
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Affiliation(s)
- Aymard Kouakou Kouakou
- Station D’écologie de Lamto, Université Nangui Abrogoua, Abidjan 02 BP 801, Côte d’Ivoire
- Eco & Sols, University Montpellier, CIRAD, INRA, IRD, Montpellier SupAgro, F-34398 Montperliier, France
| | - Jérôme Cortet
- UMR CEFE 5175, University of Montpellier, EPHE, University Paul-Valéry Montpellier, Route de Mende, CEDEX, F-34199 Montpellier, France
| | - Yeo Kolo
- Station D’écologie de Lamto, Université Nangui Abrogoua, Abidjan 02 BP 801, Côte d’Ivoire
| | - Alain Brauman
- Eco & Sols, University Montpellier, CIRAD, INRA, IRD, Montpellier SupAgro, F-34398 Montperliier, France
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