| 磴口县农林复合生态系统农田子系统能流分析 |
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| 引用本文： | 刘洋,张秋良,马利强,郝玉光,郭艳荣.磴口县农林复合生态系统农田子系统能流分析[J].干旱区资源与环境,2011(5):223-228. |
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| 作者姓名： | 刘洋 张秋良 马利强 郝玉光 郭艳荣 |
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| 作者单位： | 内蒙古农业大学林学院;中国林业科学研究院沙漠林业实验中心; |
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| 基金项目： | 乌兰布和沙漠边缘绿洲防护体系构建技术研究与试验示范(2006BAD26B0801)资助 |
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| 摘 要： | 采用Odum能流分析理论以及主成分分析法,结合磴口县1992～2008年统计年鉴,选取有机能、无机能、能量总投入和总产出、产投比、能量循环指数和投能结构6个指标,对磴口县农林复合生态系统农田子系统的能流特征进行定性、定量分析.结果表明:该地区有机肥使用量逐年降低,而无机肥却在增加;该系统能量产出大于投入,产投比为:3....
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| 关 键 词： | 磴口县 农田子系统 能流分析 |
Energy flow in the farmland subsystem in agroforestry ecosystem in Dengkou County |
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| LIU Yang,ZHANG Qiuliang,MA Liqiang,HAO Yuguang,GUO Yangrong.Energy flow in the farmland subsystem in agroforestry ecosystem in Dengkou County[J].Journal of Arid Land Resources and Environment,2011(5):223-228. |
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| Authors: | LIU Yang ZHANG Qiuliang MA Liqiang HAO Yuguang GUO Yangrong |
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| Institution: | LIU Yang1,ZHANG Qiuliang1,MA Liqiang1,HAO Yuguang2,GUO Yangrong1(1.Forestry College of Inner Mongolia Agricultural University,Hohhot 010019,P.R.China,2.Experimental Centre of Forestry in Desert Area,China Academy of Forestry,Dengkou 015200,P.R.China) |
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| Abstract: | We adopted the energy flow analysis theory and principal components analytic method,used the Dengkou County Statistical Annual(1992~2008) and chose 6 indexes which are organic and inorganic energy,the energy total input and output,ratio of output to input and the energy cycle index to analyse energy flow characteristics of the farmland subsystem in agroforestry ecosystem in the Dengkou County.The results showed that the organic fertilizer use reduced year by year,but inorganic fertilizer was actually increa... |
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| Keywords: | Dengkou County farmland subsystem energy flow |
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