Effects of soil conservation techniques on water erosion control: A global analysis

The Science of the Total Environment
Muqi XiongLi Ding Chen

Abstract

Water erosion control is one of the most important ecosystem services provided by soil conservation techniques (SCTs), which are being widely used to alter soil and water processes and improve ecosystem services. But few studies have focused on providing this service using various techniques across the world. Here, a comprehensive review was conducted to compare the effects of SCTs on water erosion control. We conducted a meta-analysis consisting of 1589 sample plots in 22 countries to identify SCTs, which we classified into three groups: biological techniques (BTs, such as afforestation and grain for green), soil management techniques (STs, such as no tillage and soil amendment), and engineering techniques (ETs, such as terraces and contour bunds). Our results were as follows: (1) The SCTs had significant positive effects on water erosion control, and they were generally more effective at reducing annual soil loss (84%) than at reducing annual runoff (53%). (2) The BTs (e.g., 88% for soil and 55% for runoff) were generally more effective at reducing soil and water loss than ETs (e.g., 86% for soil and 44% for runoff) and STs (e.g., 59% for soil and 48% for runoff). (3) On bare lands, the efficiency of water erosion control dec...Continue Reading

Citations

Nov 9, 2019·Environmental Monitoring and Assessment·Rahmah Dewi YustikaTsugiyuki Masunaga
Feb 16, 2021·The Science of the Total Environment·Fengmei JinZhi Li
Dec 24, 2018·The Science of the Total Environment·Jullian S SonePaulo Tarso S Oliveira
Mar 16, 2021·The Science of the Total Environment·Liangang XiaoLu Zhang
Sep 29, 2021·Global Change Biology·Liangang XiaoLianhai Cao
Mar 10, 2020·Journal of Environmental Management·Jing FengDaili Pan

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