黄土高原家庭农业生态系统的能量流特征

journal6 ›› 2003, Vol. 24 ›› Issue (3): 78-82.

黄土高原家庭农业生态系统的能量流特征

(吉首大学生物资源与环境科学学院,湖南吉首 416000)

出版日期:2003-09-15 发布日期:2012-11-07
作者简介:李俊年(1964-)，男，甘肃省民乐县人，生态学博士后，吉首大学生物资源与环境科学学院副研究员，主要从事营养生态学、进化生态学研究.
基金资助:
甘肃省教育厅基金资助项目(GK960-2-25A)

Energy Flow Characteristics of Household Agri-Ecosystem on Loess Plateau

(College of Resources and Environmental Sciences,Jishou University,Jishou 416000，Hunan China)

Online:2003-09-15 Published:2012-11-07

摘要/Abstract

摘要：以能量生态学为基础，分析了黄土高原19个家庭农业生态系统的能量流特征.研究结果表明：农牧型、农林型、农副型、综合型家庭农业生态系统能量流可分为系统外输入能量、系统内子系统之间流动的生物能、输出到系统外的生物能；农牧型、农林型、农副型、综合型家庭农业生态系统农田子系统无机能投入具有较高水平，带有石油农业特征；畜禽子系统的饲料能决定畜禽子系统投入能量的水平.

关键词： 黄土高原, 家庭, 农业生态系统, 能量流, 生物能

Abstract: The characteristics of energy flow 19 household agri-ecosystems were analyzed based on energy ecology.The result indicated that the energy flow of agri-livestock type,agri-forest type,comprehensive type and agri-sideline type could be divided into energy input from outside system,bio-energy flow among subsystems and the bio-energy output from the system.The four types of farmland subsystem,with petrol-agriculture characters,input high inorganic energy.The level of energy input in animal husbandry subsystem was determined by the food energy.

Key words: loess plateau, household；agri-ecosystem, energy flow, bio-energy

李俊年, 杨冬梅, 陶双伦, 刘志霄, 张佑祥. 黄土高原家庭农业生态系统的能量流特征[J]. journal6, 2003, 24(3): 78-82.

LI Jun-Nian, YANG Dong-Mei, TAO Shuang-Lun, LIU Zhi-Xiao, ZHANG You-Xiang. Energy Flow Characteristics of Household Agri-Ecosystem on Loess Plateau[J]. journal6, 2003, 24(3): 78-82.