中国半干旱地区农业持续发展模式探讨

A Discussion on Sustainable Development of Agriculture in the Semi arid Region of China.

在我国２．２×１０６ｋｍ２的半干旱区，水分匮缺是制约农业持续发展的核心因素，但却并非是唯一因素，要获得该地区农业的持续发展，还必须充分注重能源和各类自然资源的合理利用以及生态平衡的综合维护。农户庭院经济的充分发展是实现集约化经营的必由之路，本文主要就该区农业持续发展的相关问题作一探讨，并在近年研究工作的基础上，提出了一种半干旱地区庭院经济发展的新模式。

The semi arid region of China has an area of 2.2×10 6 km 2. Water shortage in this area is the core but not the only resistance to the sustainable development of agriculture. To use energy and all kinds of resources effectively, to protect environment and to keep the ecological balance of the nature should be paid great attention so as to realize the sustainable development of agriculture. The extensive development of rural yard economy is necessary in this region. After making a discussion on issues related to sustainable development of agriculture, a new model of yard economy was developed on the basis of our recent years studies.