Control soil erosion in highway construction 高速公路建设水土流失防治思考
The mode for controlling soil erosion of hillside fields in small valley in much frigid region 高寒地区丘陵慢岗地小流域水土流失治理模式
Aims energy flow characteristics of alley cropping have been rarely studied , although alley cropping is common in sichuan in order to control soil erosion and promote productivity 摘要关于农业生态系统能流特征的研究很多,但关于植物篱农作系统能流特征的研究很少。
People ' s governments at various levels shall take measures to strengthen the rehabilitation of small river basins , control hazards of sand storms , prevent and control soil erosion and desertification 各级人民政府应当采取措施,加强对小流域治理,控制风沙危害,预防和治理水土流失、土地沙化。
The mechanism of controlling soil erosion without tillage outside and inside our country , its effects on soil characteristics and the direction of its application in out country are introduced in this paper 摘要综述了国内外免耕控制土壤侵蚀的机理研究以及对土壤性质的影响,并提出免耕在我国的应用方向。