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Reductions in water, soil and nutrient losses and pesticide pollution in agroforestry practices: A review of evidence and processes

Zhu Xiai, Liu Wenjie, Chen Jin, Bruijnzeel L. Adrian, Mao Zhun, Yang Xiaodong, Cardinael Rémi, Meng Fan-Rui, Sidle Roy C., Seitz Steffen, Nair Vimala D., Nanko Kazuki, Zou Xin, Chen Chunfeng, Jiang Xiao Jin. 2020. Reductions in water, soil and nutrient losses and pesticide pollution in agroforestry practices: A review of evidence and processes. Plant and Soil, 453 (1-2) : 45-86.

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Quartile : Q1, Sujet : AGRONOMY / Quartile : Q1, Sujet : PLANT SCIENCES / Quartile : Q2, Sujet : SOIL SCIENCE

Résumé : Background and aims: Agroforestry systems combining trees with crops or pastures have been widely used to reduce water, soil, and nutrient losses and associated water pollution from agricultural lands in both temperate and tropical regions. However, reviews on improvement/efficiency and the scope of such reductions by soil, management, climate, and hydrological processes are limited. Methods: This paper synthesized the available evidence on the reduction in surface runoff, soil erosion, nutrient, and pollutant losses (e.g., herbicides, pesticides, and antibiotics) to quantify the effectiveness of agroforestry systems on water quality improvement based on published studies. Results: On average, agroforestry systems reduced surface runoff, soil, organic carbon, and related nutrient losses by 1–100%, 0–97%, –175–92%, and –265–100%, respectively, with average values of 58%, 65%, 9%, and 50%, respectively. They also lowered herbicide, pesticide, and other pollutant losses by –55–100% (49% on average). Conclusions: Reduction efficiency of agroforestry systems is site-dependent and varies widely depending on different biophysical factors. A comprehensive science-based review is needed to generalize agroforestry design and site adaptability for water and soil conservation where climatic, geographical, ecological, and socio-economic conditions are relatively similar in the world.

Mots-clés Agrovoc : agroforesterie, conservation de l'eau, conservation des sols, érosion, pollution par l'agriculture, système de culture

Mots-clés libres : Agroforestry practice, Nutrient capture, Root system, Soil erosion, Water contamination

Classification Agris : F08 - Systèmes et modes de culture
P02 - Pollution
H02 - Pesticides

Champ stratégique Cirad : CTS 2 (2019-) - Transitions agroécologiques

Auteurs et affiliations

  • Zhu Xiai, CAS (CHN) - auteur correspondant
  • Liu Wenjie, CAS (CHN) - auteur correspondant
  • Chen Jin, CAS (CHN)
  • Bruijnzeel L. Adrian, King's College London (GBR)
  • Mao Zhun, INRA (FRA)
  • Yang Xiaodong, CAS (CHN)
  • Cardinael Rémi, CIRAD-PERSYST-UPR AIDA (ZWE) ORCID: 0000-0002-9924-3269
  • Meng Fan-Rui, University of New Brunswick (USA)
  • Sidle Roy C., University of Central Asia (TJK)
  • Seitz Steffen, University of Tübingen (DEU)
  • Nair Vimala D., University de Florida (USA)
  • Nanko Kazuki, Forestry and Forest Products Research Institute (JPN)
  • Zou Xin, CAS (CHN)
  • Chen Chunfeng, CAS (CHN)
  • Jiang Xiao Jin, CAS (CHN)

Source : Cirad-Agritrop (https://agritrop.cirad.fr/594198/)

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