中国保护性耕作对土壤风蚀的影响研究

为探讨保护性耕作措施对农田土壤风蚀的影响,通过中国知网,以“免耕或保护性耕作并且土壤风蚀”为主题,检索至2020年底公开发表的中文期刊论文,对检索到的论文进行整理分析。结果表明,中国保护性耕作对土壤风蚀的田间试验均来自北方干旱半干旱农田,研究方法以集沙仪野外测量为主;保护性耕作研究中对土壤风蚀方面的研究占比较少,产量效应一直是保护性耕作的研究重点;综合相关研究分析,保护性耕作平均可减少农田土壤风蚀量71.2%;保护性耕作减少农田土壤风蚀具有普遍性,少量研究认为保护性耕作不能减少农田土壤风蚀量。

Effects of conservation tillage on soil wind erosion in China

In order to explore the impact of conservation tillage measures on farmland soil wind erosion, the Chinese journal papers published until the end of 2020 were retrieved through CNKI with the theme of "no tillage or conservation tillage and soil wind erosion". The results show that the field experiments of soil wind erosion by conservation tillage in China are all from arid and semi-arid farmland in North China, and the research method is mainly field measurement by sand collector; The research on soil wind erosion in conservation tillage is relatively small, and the yield effect has always been the focus of conservation tillage research; Based on the analysis of relevant studies, conservation tillage can reduce the wind erosion of farmland soil by 71.2% on average; Conservation tillage is universal to reduce farmland soil wind erosion. A few studies believe that conservation tillage can not reduce farmland soil wind erosion.