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生态学杂志 ›› 1991, Vol. ›› Issue (1): 15-20.

• 研究报告 • 上一篇    下一篇

安徽省颖上县小张庄种植业子系统生态功能分析

马成泽1, 蒋宗豪2, 陈钟镇2   

  1. 1. 安徽农学院, 合肥 230036;
    2. 安徽省环境保护研究所, 合肥 230036
  • 收稿日期:1989-11-15 修回日期:1990-01-08 出版日期:1991-02-10

Ecological Function Analysis for Planting Subsystem in Xiaozhangzhuang Village of Yingshang County, Anhui Province

Ma Chengze1, Jiang Zonghao2, Chen Zhongzhen2   

  1. 1. Anhui Agricultural College, Hefei 230036;
    2. Institute of Environmental Protection of Anhui Province, Hefei 230036
  • Received:1989-11-15 Revised:1990-01-08 Online:1991-02-10

关键词: 氮移除, 凋落物添加, 土壤呼吸, 土壤碳分解

Abstract: Through an ecological function analysis for the planting subsystem in Xiaozhangzhuang village of Yingshang county, it is considered that because of the continued improvement of farmland environment and readjustment of planting structures, the combination of communities, environment and technological regulation in the subsystem is rationalized. The analyses are made from three aspects: level and efficieney of energy input, cyoling of mineral nutrients and reproducing efficieney of investment funds. The photo-utilization ratio of dominant crops has reached or suppassed that in the middle reaches of the Changjiang River. The system has a strong self-sustainability to field nutrient balances. The soil N and P are surplus, but K is a little deficit. The reproducing efficieney of investment funds is significantly promoted when it reaches to a definite level.

Key words: nitrogen removal, litter addition, soil respiration, soil organic carbon decomposition