试论作物生产系统的结构与功能  

A discussion on the structure and functions of crop production system

作　　者：张立峰[1] 刘玉华[1] 杜雄[1] 

机构地区：[1]河北农业大学农学院,河北保定071000

出　　处：《河北农业大学学报》2013年第2期12-16,共5页Journal of Hebei Agricultural University

基　　金：农业部公益性行业科研专项(201003053-3)

摘　　要：以系统学争分-耦合进化原理,分析了作物生产系统的结构与功能的关系。作物生产系统由作物系统与地气系统组成。本文进一步揭示了作物系统与地气系统的界域及其时空组成单元,明确了系统结构-功能效果的定量评价方法,从原理与技术上促进了农作制度理论的完善。Based on differentiation-coupling evaluation principle from systematology, the rela- tionship between the structure and the function of crop production system was discussed. Crop production system was composed of two subsystems, one was crop subsystem, the other was root layer soil with canopy atmosphere subsystem. The paper defined the crops subsystem boundary and root layer soil with canopy atmosphere subsystem boundary, as well as spatio- temporal bound of crop production systems, and confirmed the quantitative evaluation method for the structure and function of crop production system. The farming system theory was per- fected in principle and technolo^v.

关 键 词：作物生产系统 结构 功能 地气系统 土地当量比 

分 类 号：S344[农业科学—作物栽培与耕作技术]