1) Returning sloping farming land for forest project
退耕坡地系统
2) sloping returned grain plots
退耕坡地
1.
Vegetation recovery techniques and benefit evaluation on sloping returned grain plots in the northern area of Shaanxi;
陕北地区退耕坡地植被恢复技术及效益评价
3) sloped land farming system
坡地耕作系统
4) steep cultivated land for quitting
陡坡退耕地
1.
Based on the principle of gradualy control, different level classification, all covering and main factors, the steep cultivated land for quitting was classified to 6 site type areas by macrolandforms, 5 site type subareas by rock group characteristic, 2 type groups by gradient, and 3 types by soil layer thickness in noncarbonatite areas, 4 site types by soil continuity in karst areas.
按逐级控制、逐级分类、全覆盖及主导因子原则,将贵州省陡坡退耕地以大地貌及气候条件分6个类型区,以岩组性质分5个类型小区,以坡度等为2个类型组。
5) steep cropland
陡坡退耕还林地
1.
Sustainable development of the society and economy has inevitably been restricted in the region,so that the de farming and afforestation in the steep cropland become far more significant for the development of the society and economy there.
长江上游属于 2 5°以上的陡坡退耕还林地面积达 170万hm2 ,是长江上游水土流失的重要策源地 ,严重制约了该区域社会经济的可持续发展。
6) Emergy Analysis
耕地系统
1.
Emergy Analysis of Farmland System in Hebei Province;
河北省耕地系统能值分析
补充资料：退耕
1.见"退耕"。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条