秋免耕对坝上地区农田风蚀及土壤理化性质的影响

安晨宇, 王仁德, 周海涛, 李庆, 张新军, 常春平, 郭中领, 李继峰

Effect of no-tillage in autumn on farmland wind erosion and soil properties in Bashang district

Chenyu An, Rende Wang, Haitao Zhou, Qing Li, Xinjun Zhang, Chunping Chang, Zhongling Guo, Jifeng Li

表1 不同耕作方式风蚀前后土壤颗粒组成的比较

Table 1 Comparison of soil particle composition before and after wind erosion under different tillage methods

耕作方式 黏土<0.002 mm 粉沙0.002—0.063 mm 沙粒0.063—0.5 mm 平均粒径/μm 秋免耕风蚀前 0.54±0.34 44.64±8.47 51.37±8.02 108.95±25.97 秋免耕风蚀后 0.52±0.32 44.9±7.59 51.02±7.39 108.26±25.87 秋翻耕风蚀前 0.55±0.39 43.73±9.25 50.56±8.57 121.67±34.7 秋翻耕风蚀后 0.57±0.43 42.86±8.56 51.03±7.12 125.68±40.67