AN ANALYSIS OF THE STRUCTURE AND FUNCTION OF THE NONIRRIGATED AGROECOSYSTEM WITH DIFFERENT CROPPING SYSTEMS
旱地不同种植制度下农田生态系统的结构与功能分析

The result of our experiments shows that it is one of the important measures for adjustment of the structure and function of the agroecosystem and for maintenance of its dynamic equilibrium to make full use of local natural resources for developing the multiple cropping system in it, such as intercropping and interplanting.The more the components of the agroecosystem, the more stable the system is, and consequently its productivity is higher. Our practice has proved that the productivity of the agroecosyste...