| 浦洼生态系统功能分析 |
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| 引用本文： | 徐明,郑大伟.浦洼生态系统功能分析[J].北京林业大学学报,1994,16(3):1-7. |
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| 作者姓名： | 徐明 郑大伟 |
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| 作者单位： | 北京市气象局农气中心 |
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| 摘 要： | 以１９８８～１９９０年的调查资料为依据，通过对浦洼生态系统的生产力及物、能流进行分析，指出该系统目前存在的问题和今后的发展方向。
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| 关 键 词： | 生态系统，生产力，物质流，能量流 |
Analyses of Functions of the Puwa Ecosystem |
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| Xu Ming,Zheng Dawei Liu Zhongli,Cai Dihua,Tang Guang.Analyses of Functions of the Puwa Ecosystem[J].Journal of Beijing Forestry University,1994,16(3):1-7. |
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| Authors: | Xu Ming Zheng Dawei Liu Zhongli Cai Dihua Tang Guang |
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| Abstract: | Based on the investigated data(form 1988 to 1990) this paper deals with theproductivity,nutrient cycle and energy flow of the Puwa ecosystem。The productivity of thisecosystem is very low,the solar energy utilization ratio of the whole ecosystem is only 0.096percent and the agricuItural subecosystem is only 0.258 percent.The deficit of nitrogen is se-rious(as to 69 277.6 kg/a)but phosphorus is a little more than needed in the current ecosys-tem. The artificial supplementary energy is deficient and thus limits the increase of productiv-ity,especially in the agricuItural subecosystem。 |
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| Keywords: | ecosystem function analysis |
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