农田生态系统能量投入产出模型及其应用研究  

A Study on the Energy Input-Output Model of Farmland Ecosystems and its Preliminary Application

作　　者：叶旭君[1] 李全胜[1] 

机构地区：[1]浙江大学华家池校区农业生态研究所,浙江杭州310029

出　　处：《生物数学学报》2002年第1期104-109,共6页Journal of Biomathematics

摘　　要：本文在分析农田生态系统能量转化规律的基础上，建立了农田生态系统的能量投入产出模型，提出了确定能量合理投入范围的方法，并结合德清县农业生产实际对此模型和方法进行了初步应用。Based on the analysis of energy transformation regularities in farmland ecosys tems. this paper presents the energy input-output model of farmland ecosystems and the method to identify the rational range of energy input for particular farmland ecosystems. Taking Deqing County as an example. this paper discusses the preliminary application of the proposed model and method in practical agricultural production, and then puts forward the energy input recom mendations for the county.

关 键 词：农田生态系统 能量投入产出模型 能量投入合理范围 应用 

分 类 号：S181[农业科学—农业基础科学]