| 宁夏盐池县半农半牧区草原畜群发展预测分析 |
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| 引用本文： | 周海林.宁夏盐池县半农半牧区草原畜群发展预测分析[J].应用生态学报,1992,3(2):149-154. |
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| 作者姓名： | 周海林 |
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| 作者单位： | 中国科学院-国家计委 自然资源综合考察委员会, 北京 100101 |
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| 摘 要： | 本文利用系统动力学方法和灰色系统理论,建立了盐池县草原畜群发展动态模型。通过计算机模拟,可找出控制滩羊与山羊数景发展的敏感参数。认为在控制畜群数量的同时,经济效益亦可得到提高。
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| 关 键 词： | 模型 畜群数量 敏感参数 北疆 棉花 时空分布 水分盈亏指数 作物需水量 |
| 收稿时间： | 1990-06-12 |
Predicting analysis of livestock population in semi-agricultural and pastoral area of Yanchi county. |
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| Zhou Hailin.Predicting analysis of livestock population in semi-agricultural and pastoral area of Yanchi county.[J].Chinese Journal of Applied Ecology,1992,3(2):149-154. |
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| Authors: | Zhou Hailin |
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| Institution: | Commission for Integrated Survey of Natural Resources, Academia Sinica, Beijing 100101 |
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| Abstract: | In this paper, the dynamic models for livestock population in rangeland of Yanchi county were established by system dynamic method and grey system theory. With the computer process of model, several sensitive parameters such as total elimination coefficient of basal ewes,wether slaughter rate(C_6), percentage of killing Iambs (P_1)and rate of lamb fur (P_2) are found, by which, it is possible to control the development of Tan sheep and goat populations. The author considers that controlling livestosk population can raise the economic benefits. |
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| Keywords: | Model Livestock population Sensitive parameter |
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