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黄土高原中南部农果复合型生态农业生产力特征
引用本文:吴发启,周正立,刘海斌.黄土高原中南部农果复合型生态农业生产力特征[J].应用生态学报,2005,16(2):262-266.
作者姓名:吴发启  周正立  刘海斌
作者单位:1. 西北农林科技大学资源环境学院,杨凌,712100
2. 塔里木农垦大学植物科技学院,阿拉尔,843300
基金项目:中国科学院知识创新工程项目(KZCX106),国家重点科技攻关计划资助项目(2001BA508B20).
摘    要:以黄土高原中南部的西坡、飞马河和南沟3村为对象,研究了农果复合型生态农业的生产力特征.结果表明,(1)同一植物各器官的生产力果实最大,茎叶次之,根最小;(2)农果复合型生态农业中,农业子系统越发达,系统生物生产力越高,经济生产力越小,经济产值越低;果业子系统越发达,系统生物生产力越小,经济生产力越高,经济产值越高;(3)畜牧业子系统生产力均处于相对较低的水平,制约了系统总生产力的提高.

关 键 词:生产力  生态农业  农果复合型
文章编号:1001-9332(2005)02-0262-05
收稿时间:2004-01-12
修稿时间:2004年1月12日

Productivity of crop-fruit ecological agriculture in middle-south Loess Plateau
WU Faqi,ZHOU Zhengli,LIU Haibin.Productivity of crop-fruit ecological agriculture in middle-south Loess Plateau[J].Chinese Journal of Applied Ecology,2005,16(2):262-266.
Authors:WU Faqi  ZHOU Zhengli  LIU Haibin
Institution:College of Resources and Environmental Science, Northwest Sci-Tech University of Agriculture and Forestry, Yangling 712100, China. wufaqi@263.net
Abstract:With the Xipo,Feimahe and Nangou villages as test objects,the productive characteristics of crop-fruit ecological agriculture in the middle-south Loess Plateau were investigated.The results showed that the biomass productivity of a plant was different with its organs,the highest for grain or fruit,and followed by stem,leaf and root.In the crop-fruit ecological agriculture,the higher ratio the crop subsystem,the higher productivity its biomass,the lower economic productivity and lower economic value was; while the fruit subsystem was on the contrary.The productivity of livestock farming subsystem was in a lower level,which restricted the increase of the total ecosystem's productivity.Based on these results,a countermeasure of increasing the ecosystem productivity was put forward.
Keywords:Productivity  Crop-fruit ecological agriculture  Loess Plateau  
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