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Review of organic mulching effects on soil and water loss
Archives of Agronomy and Soil Science ( IF 2.4 ) Pub Date : 2020-01-23 , DOI: 10.1080/03650340.2020.1718111
Rui Li 1 , Qinggui Li 1 , Lidong Pan 1
Affiliation  

ABSTRACT Organic mulch is an important agronomic measure which has proven effective for soil and water conservation worldwide. However, the appropriate mulch application rate, mulch material for soil erosion and runoff reduction need to be further discussed on a global scale. The results of this study confirmed that, under various environmental conditions, organic mulch had positive effects on soil and water conservation. Mulch application rate greatly impacted soil and water loss; generally, with the increase of mulch application rate, the rates of soil loss and runoff reduction increased and when mulch application rate reached 6–10 Mg ha−1, soil and water loss decreased significantly. There were no significant differences among the three types of mulch materials tested in terms of rate of reducing soil loss and runoff. Similarly, experimental site types had a weak impact on soil and water loss. Research scale did not have a significant impact on the rate of reducing soil loss but significantly affected runoff. Measurement method obviously impacted the rate of reducing soil loss and runoff. These results suggest that the mulch application rate of 6–8 Mg ha−1 has a regulating effect on soil and water loss under most global environmental conditions, and straw is strongly recommended for mulching.

中文翻译:

有机覆盖对水土流失的影响综述

摘要 有机覆盖是一种重要的农艺措施,已被证明对世界范围内的水土保持有效。然而,需要在全球范围内进一步讨论适当的覆盖物施用率、用于土壤侵蚀和减少径流的覆盖物材料。本研究结果证实,在各种环境条件下,有机覆盖物对水土保持具有积极作用。地膜施用量对水土流失影响较大;一般来说,随着地膜施用量的增加,土壤流失和径流减少的速度增加,当施用量达到6-10 Mg ha-1时,水土流失显着减少。在减少土壤流失和径流方面,三种类型的覆盖材料之间没有显着差异。相似地,试验场地类型对水土流失的影响较弱。研究规模对减少土壤流失率没有显着影响,但对径流有显着影响。测量方法明显影响减少土壤流失和径流的速度。这些结果表明,在大多数全球环境条件下,6-8 Mg ha-1 的覆盖物施用量对水土流失具有调节作用,强烈建议使用秸秆进行覆盖。
更新日期:2020-01-23
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