摘要
植物病害系统是农业生态系统的一个子系统。其实,作为自然生态系的一个子系统,在人类认识自然、改造自然以前它就以相对平衡和稳定的形式存在。随着人类社会的进步,人和社会因素改变了它的本来面貌,便发生一系列演变,使得本来稳衡发展的体系变为不平衡的系统。
Plant disease system, a sub-system of agricultural ecosystem, existed in the form of a relatively balanced and stable system in ancient shifting agriculture, and has been continuously evolving along with the development of agriculture and progress of mankind societies.This paper emphatically discussed the development of plant disease system and the decisive effect of mankind development of plant disease.
出处
《河北农业大学学报》
CAS
CSCD
北大核心
1991年第2期103-106,共4页
Journal of Hebei Agricultural University
