摘要
The main mechanism and types of the formation and succession and spatial distribution pattern of agricultural ecosystem are discussed in this paper. It suggests that the formation and succession of agricultural ecosystem is co-influenced by the natural environmental conditions, natural resources, economic development level, market background, science and technology, policy systems,and social and cultural customs. But in different areas, the formation mechanism of the agroecosystem is also different. There are some main types such as the closed environment-induced, cultures and customs-induced, economy and technique-induced, resource-restricted, policy-induced types. Because of the interaction of above induced factors, agroecosystems often have following spatial distribution pattern, including gradient distribution, random inlaid distribution, island-like distribution and line or strip distribution.
The main mechanism and types of the formation and succession and spatial distribution pattern of agricultural ecosystem are discussed in this paper. It suggests that the formation and succession of agricultural ecosystem is co-influenced by the natural environmental conditions, natural resources, economic development level, market background, science and technology, policy systems,and social and cultural customs. But in different areas, the formation mechanism of the agroecosystem is also different. There are some main types such as the closed environment-induced, cultures and customs-induced, economy and technique-induced, resource-restricted, policy-induced types. Because of the interaction of above induced factors, agroecosystems often have following spatial distribution pattern, including gradient distribution, random inlaid distribution, island-like distribution and line or strip distribution.
出处
《生态学杂志》
CAS
CSCD
北大核心
2001年第1期48-51,共4页
Chinese Journal of Ecology
基金
中美日联合资助项目!"华南退化坡地恢复与绿色食品生产模式调查研究"的部分内容
关键词
农业生态系统模式
空间分布
格局
形成
agricultural ecosystem
formation
succession
distribution.