| 内蒙古草地干旱损失评估方法研究 |
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| 引用本文： | 李兴华,陈素华.内蒙古草地干旱损失评估方法研究[J].草业科学,2012,29(7):1033-1038. |
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| 作者姓名： | 李兴华 陈素华 |
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| 作者单位： | 内蒙古生态与农业气象中心,内蒙古呼和浩特,010051 |
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| 基金项目： | 国家科技部农业科技成果转化资金项目“北方主要牧区草原干旱诊断评估技术推广应用” |
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| 摘 要： | 利用内蒙古草地监测站牧草和降水资料，对干旱造成草地牧草和畜产品减产以及抗旱投入的经费等直接经济损失进行了评估。结果表明，内蒙古草地牧草产量与降水相关密切，8月末牧草产量与5-8月降水量相关系数为0.728；建立了不同草地类型不同月份牧草产量与降水量的最优模拟方程；利用降水量距平百分率划分干旱等级，建立了干旱等级与牧草和牲畜损失的对应关系，实现了干旱对草地直接经济损失的定量评估，评估模型符合草地牧草生长规律和畜牧业生产特征，实例评估符合畜牧业实际损失程度，因此能够在干旱对草地畜牧业评估服务中推广应用。
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| 关 键 词： | 干旱 损失评估 草地类型 直接经济损失 |
Assessment method of grassland loss from drought damage in Inner Mongolia |
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| LI Xing-hua,CHEN Su-hua.Assessment method of grassland loss from drought damage in Inner Mongolia[J].Pratacultural Science,2012,29(7):1033-1038. |
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| Authors: | LI Xing-hua CHEN Su-hua |
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| Institution: | (Inner Mongolia Ecological and Agricultural Meteorological Center,Hohhot 010051,China) |
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| Abstract: | The data of precipitation and herbage from monitoring stations in the Inner Mongolia was used to assess the grassland loss from drought damage from reduction of grassland yield and animal products and input funds of drought disaster relief.The results of this study showed the grassland yield was closely related to precipitation,and their correlation coefficient was 0.728.Optimal simulation model was established between grassland yield of different month for each grassland type and precipitation.Drought was graded by using percentage of precipitation anomaly and the relationship between drought grades and livestock loss was determined in this study,which quantitatively assessed the directly economic loss of grassland caused by drought.Assessment model fitted with growth rhythm and animal husbandry characteristics,and the case assessment was in accord with actual loss of animal husbandry caused by drought,implying that this model was able to assess the loss of grassland animal husbandry caused by drought. |
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| Keywords: | drought damage assessment grassland type directly economic loss |
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