CAI Jin-jun,LI Zhen-yong,ZHANG Yuan-run,et al.The Energy Flow Analysis of Rural Ecological Economic System in Semiarid Degraded Mountain Area[J].Research of Soil and Water Conservation,2006,13(02):175-178.
半干旱退化山区农村生态经济系统能流分析
- Title:
- The Energy Flow Analysis of Rural Ecological Economic System in Semiarid Degraded Mountain Area
- 分类号:
- S181
- 摘要:
- 能流是生态系统的基本功能，是系统结构和功能的综合反映。通过对半干旱退化山区彭阳县崾岘乡中庄村农村生态经济系统的能流进行分析研究，以期探讨出合理的农村生态经济系统结构。通过对中庄示范区具有代表性的5种生态模式进行分析研究，该区农业生态经济系统是以种植业为主的。有机能在系统的能投中占的比例较大，达到系统总投能的88%~94%，有机能的投入中主要以有机肥和饲料为主，有机能的投入远大于无机能，反映了该地区的农业生产水平低下、机械化程度较低。从种植业系统的能流分析来看，是一个能量低投入与高产出的系统，养殖业系统是一个能量高投入与低产出的系统。总体来看，中庄村的农业生态经济系统是一个能量投入大于产出的系统，而且，能量的投入和产出呈反比关系，说明该区农业生产的能量投入水平还很低。
- Abstract:
- To analyze and study energy flow of rural ecological economic system is necessary to improve the systematic structure and comprehensive benefit. Through the analysis and study of five typical ecological models of Zhongzhuang village where plant industry is primary in the agricultural ecological economic system so as to explore resonable rural ecological economic system. The proportion of organic energy is high in the systematic energy input, amount to 88%～94%, the organic fertilizer and feed are primary in the organic energy input, the organic energy input exceeds inorganic energy input, it shows that the agricultural produce and the mechamical extend are low. Analyzing the energy flow of the plant industry system, which shows the energy input is low and the output is high and the cultivation industry system in which the energy input is high and the output is low. On the whole, the agricultural ecological economic system is the system that the energy input exceeds output. Moreover, the energy input is in opposite proportion to the output. It shows that the energy input level of agricultural produce in the region is low.
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备注/Memo
收稿日期:2005-3-11;改回日期:。
基金项目:国家“十五”科技攻关计划重大项目（编号2001BA606A—04）资助
作者简介:蔡进军（1977- ），男，宁夏平罗人，研究实习员，主要从事于黄土高原生态农业的研究。