本文研究了江西红壤地区以种植业为主种养结合的农户生态系统的物质循环情况。结果表明,在农田亚系统中营养物质水平有较大的提高,N、P、K都有积累,尤其是P的积累量比较高。农田亚系统的稳定度比较高,而猪场的稳定度相对较低,物质大部分靠外界的投入。系统的结构不完善,潜伏一定的不稳定性和生态脆弱性。

This paper deals with the issue of material cycling in the farm household ecosystem in Jiangxi Province. The results show that N, P and K are accumulating, especially P, in the farmland subsystem. The farmland ecosystem is more stable than the pig gery subsystem. The structure of the system is not rational, and potentially unstable and fragile.

中国科学院知识创新项目(KZCX 2-413和ISSASIP 0201)资助。