2) restoring forest or grass
还林还草
1.
The inevitability and significance of forbidden cuttivate for restoring forest or grass are discussed in this paper.
论述了沙区退耕还林还草的必要性及意义，以及退耕地基本类型、还林还草品种选择及应遵循的原则；分析了林、草在沙区生态环境中的作用及如何进行还林还草；最后提出了沙区退耕还林还草对策及需注意的问题。
3) conversion of cropland to grassland
退耕还草
1.
Current status and effects of carrying out conversion of cropland to grassland in Liaoning province are expatiated.
针对辽宁省退耕还草现状,阐述实施退耕还草成效,并依据当前退耕还草存在的问题提出了有关建议。
4) grazing forbidden
退牧还草
1.
On the compensation mechanism after grazing forbidden: a discussion;
建立退牧还草地区生态补偿机制的探讨——以内蒙古翁牛特旗为例
2.
The grazing forbidden policy as an important ecohogical control project implemented at the beginning of this century got into effect in some regions,but some problems also emerged、 The farmers couldn't get modest subsidy because of the incomplete compensation system.
退牧还草工程作为21世纪初国家启动的一项重大的生态治理工程,在部分地区已取得了初步成效,然而也暴露出了不少问题,尤其是现行的补偿体系不够完善,无法实现农牧民的适度补偿。
5) rice straw return
稻草还田
1.
Yield effect of rice straw return depended on N fertilizer quantity,straw quantity and sorts of crop.
稻草还田(土)的产量效应因氮肥水平、秸秆施加量和作物不同而异。
6) conversion of cropland into grassland
退耕还草
1.
Optimization production model of agricultural ecosystem under conversion of cropland into grassland——a case study from Beizhuang Village,Zhenyuan County,Gansu Province;
基于退耕还草的村域农牧结构优化生产模式——以甘肃省镇原县北庄村为例
2.
Changes of soil C,N and soil water under conversion of cropland into grassland;
退耕还草对土壤水分养分演变的影响
补充资料：旋还
1.环绕。
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