摘要
在现有的农业生态系统中,引进某些新物种,往往可以使整个系统的功能发生变化。如果新物种引进得当,则可产生良好的效果,系统功能得以改善,效益提高;反之,则会造成人力、物力、财力的损失,削弱系统的功能,甚至可能遗患无穷。因此。
The purpose,principle and method of introducing novel species to an agroecosystem are discu-ssed from the viewpoints of agroecology and systematics.The main purposes of introducingnovel species should be:expanding production,increasing profits,eliminating or controllingpollution and increasing the stability of system.The principles which should be observedare:principles of system organization,principles of ecological niche and principles of dy-namic development.Finally,methods for feasibility study in introducing novel species andsteps for noevl species introduction are commented.
出处
《生态学杂志》
CAS
CSCD
北大核心
1990年第2期36-39,共4页
Chinese Journal of Ecology
关键词
农业生态系统
新物种
引种
novel species
agroecosystem
systematics
introduction
