| 康集生态农场N素产投情况分析 |
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| 引用本文： | 陈士银.康集生态农场N素产投情况分析[J].湛江师范学院学报,1997(1). |
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| 作者姓名： | 陈士银 |
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| 作者单位： | 湛江海洋大学农学院园林系!湛江，524088 |
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| 摘 要： | 本文采用投入产出法对农场的N素循环进行了分析。通过计算分析，得出本系统种植业的产投比为0．62，饲养业的产投比为0．48，系统产投比为0．40。说明系统N素的利用率较低。通过系统生产优势度和稳定性指数的计算发现：系统饲养业生产优势度大于种植业；系统稳定指数为0．34；森林覆盖率为18．6％．饲料转化率为20％。文中还指出了系统存在的主要问题。
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| 关 键 词： | N素 产投比 生产优势度 稳定性指数 |
THE INPUT-OUTPUT ANALYSIS OF NITROGEN ON KANGJI ECOLOGICAL FARM |
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| Chen Shiyin.THE INPUT-OUTPUT ANALYSIS OF NITROGEN ON KANGJI ECOLOGICAL FARM[J].Journal of Zhanjiang Normal College,1997(1). |
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| Authors: | Chen Shiyin |
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| Institution: | Zhangjiang Oceanic University Agriculture Faculty Zhanjiang 524088 |
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| Abstract: | The cycle of Nitrogen on a ecological farm is analsed by the input-output methods in this paper, In the ecosystem, the input-output ratio(IOR) of planting and the IOR of breeding is 0.62 and 0 .48respectively , the total IOR is 0. 40; the stability index (SI) is 0. 34; the forest cover rate(FCR) is 18. 6%; the feed change efficiency (FCE) is 20%, and the production sueriority degree(PSD)of breeding is higher than that of planting. It shows tha the utilizaion ration (UR) )of Nitrogen is low relatively in the ecosystem. Some questions of the ecological farm are put forward in this paper. |
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| Keywords: | cycle of Nitrogen input-output ratio production superiority degree stability index |
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