Application of ppc model to grasses of sloping field for soil and water conservation 参数投影寻踪模型在坡耕地水土保持牧草优选中的应用
Remote sensing classification method in complicated terrain area taking the loess plateau as an example 以黄土丘陵沟壑地区坡耕地遥感调查为例
Study on soil erosion and deposition of black soils on a sloping cultivated land using 137cs tracer method 示踪技术研究坡耕地黑土侵蚀和沉积特征
Regulation of techniques for comprehensive control of soil erosion - technique for erosion control of slope land 水土保持综合治理技术规范坡耕地治理技术
The spatial distribution of the rainfall soil erosion rates has been investigated on the cultivated slope land 研究了次降雨坡耕地土壤侵蚀的空间发生特征。
So the most important methods are to reduce the sloping cultivated land and to plant forest and grass 改善这种局面的主要方式就是坡耕地退耕、大力种植林草。
Cultivation of slope farmland influences surface runoff and sediment movement on slopes 摘要坡耕地由于人为耕作管理作用，造成地表高低起伏，影响著坡面地表径流和产沙。
Environmental effect of terraced field construction on the arid hillside land in karst mountainous areas in guizhou province 贵州省岩溶山区旱坡耕地梯化的环境效应研究
5 . the spatial distribution of the medium - term soil erosion rates has been investigated on the cultivated slope land 5 .研究了坡耕地中长期(约45a )土壤侵蚀产沙的空间分布特征。
Soil and water loss from cultivated slope land derived from granite under different cropping systems in three - gorges reservoir areas 三峡库区花岗岩坡耕地不同种植方式下水土流失定位研究
