退耕还林

农民增收、退耕还林与环境政策改进

Growth of peasants income , return the grain plots to forestry and environment improvement

国家从1999年开始实施退耕还林和生态环境恢复与重建方面的工作，在渭北旱塬已初见成效。

In1999 China began to return the grain plots to forestry and to recover and rebuild ecological environment and has achieved desirable results .

相反，它认为，由于人口增速的减缓，当前被开垦的农田也许能够退耕还林。

Instead , it says , thanks to slowing population growth , land currently ploughed up for crops might be able to revert to forest or wilderness .

基于GIS的青岛市山丘区退耕还林还草决策方案分析

Analysis of Decision-making Scheme on Cultivated Land in Qingdao Returned to Forestland and Grassland Based on GIS

两种退耕还林模式表层土壤速效P和速效K含量均低于农耕地。

The content of soil available P and rapidly available K in subsoil in these two reforested patterns are lower than in farmland .

基于SD的退耕还林典型立地优化模式研究

SD-based study of the optimized model of conversion of farmland to forests on typical sites

基于DEA方法的陕北退耕还林（草）模式研究

Research on the grain for green in Shan-bei district based on data envelopment analysis

现在，GIS在林业上的应用越来越广泛，如森林资源管理、森林防火、退耕还林等。

GIS is be extensively used in the forestry , such as the management of forest resources , forest fire prevention , returning farmland to forest and so on .

山地农业生态系统持续发展的有效途径&坡地农业技术（SALT）退耕还林工程技术决策支持系统研究

An effective way for sustainable development of upland agricultural ecosystem & The sloping agricultural land technology ( SALT ) Research the Techonology DSS of Convert Sloping Agricultural Land into Forest

运用数据包络分析方法研究陕北退耕还林的运作模式，建立了陕北退耕还林（草）的DEA模型。

The DEA model is set up after the data envelopment analysis ( DEA ) was applied to grain for green in Shan-bei district .

目的探讨自1999年退耕还林以来陕西省土地利用在人类活动影响下的变化规律。方法采用动态变化数量分析模型和动态度模型进行测算，并用SPSS应用软件进行分析。

Aim To analyze the effect on land use changes caused by human activity in Shaanxi province since 1999.Methods Use the dynamic model of land use convert and SPSS software .

详细描述了运用软件工程方法、地理信息系统技术和数据库分析技术等开发基于GIS的退耕还林工程管理信息系统的全过程。

It is described in detail in this paper that the entire development process of " Management Information System for the Pro-ject of Returning Land for Farming to Forestry Based on GIS " exercising software engineering method together with GIS technology , database analysis and design techniques etc.

半干旱地区坡地退耕还林中的DJS造林法研究华东监测区营造林与人工林质量状况评价

DJS Afforestation Method for Converting the Land for Forestry on Slope Land in Semiarid Area A research on the Evaluation of Afforestation and Plantation Quality in East China

黄土高原地区退耕还林（草）与粮食安全研究

Study of Grain for Green and Grain Safety on Loess Plateau

刍议四川省退耕还林工程建设成效

Effect on Converting Cropland to Forest Project Constructing in Sichuan Province

豆科植物在退耕还林中的应用

Leguminous plants ' application in returning land for farming to forestry

退耕还林工程技术决策支持系统研究

Research the Techonology DSS of Convert Sloping Agricultural Land into Forest

退耕还林与药用植物资源开发

Returning Arable Land to Forest and Exploitation of Medical Plant Resources

重庆市退耕还林工程林固碳潜力估算

Carbon Sequestration Potential of Forest Stands Under GGP in Chongqing Municipality

退耕还林可持续发展的系统思考

Systemic Thought About Sustainable Development of Conversion of Cropland to Forest

关于退耕还林有关政策的思考

Thinking of Relevant Policy of Converting the Land for Forestry

吴起县退耕还林可持续性研究

The Continuation of the Returning Farmland to Forest land in Wuqi County

陕西省退耕还林工程生态效益评价

Evaluation of Eco-Economic Benefit of Farmland Returned for Woodland in Shaanxi Province

退耕还林与粮食安全的博弈

Gaming between Returning Cultivated Land to Forest and Grain Security

对退耕还林工程中种草的探讨

Discussion on cultivating grass in returning farmland to forest project

我国退耕还林政策持续性研究

Study on the Sustainability of Returning Land from Farming to Forest Policy

退耕还林工程效益评价案例分析&以湖北省秭归县中坝村为案例

Case Study on Benefits Evaluation of Grain for Green Project

中国退耕还林政策评估研究

Evaluating research on the Chinese policy of reverting cultivated land to forests

张家界市退耕还林的生态经济效益分析

Evaluation of the Land Recovery Forest Eco-economy Benefit in Zhangjiajie

宝塔区退耕还林工程现状及发展方向的研究

Grain for Green Program in Baota District : status and Future Trend