论文部分内容阅读
中国北方大部分地区的农业耕作制度多年来一直沿用传统翻耕技术,加之该区作物生长期短,使得旱作农田一年绝大部分时间都处于裸露的休闲期,地表植被覆盖差,土壤风蚀严重。若将传统旱作农田地表铺设28%左右的砾石覆盖度不仅能有效抑制农田土壤风
Farming systems in most parts of northern China have been using traditional tillage techniques for many years. In addition, the short crop growth period in the northern part of China has resulted in most of the dry farmland being in a barely one-year leisure time with poor vegetation cover on the surface and soil erosion serious. If the traditional dry farmland surface laying about 28% of the gravel coverage can not only effectively inhibit the farmland soil wind