| 西藏那曲牧区雪灾损失的多因子灰色关联分析 |
| |
| 引用本文： | 李硕,李伟,左伟,曾志远,冯学智.西藏那曲牧区雪灾损失的多因子灰色关联分析[J].中国沙漠,2000,20(4):430-433. |
| |
| 作者姓名： | 李硕 李伟 左伟 曾志远 冯学智 |
| |
| 作者单位： | 1. 南京师范大学,地理科学学院,江苏,南京,210097
2. 南京大学,城市与资源系,江苏,南京,210097 |
| |
| 摘 要： | 通过那曲地区牧区雪灾的定性分析，应用灰色系统理论的关联分析方法，以１９８５年、１９９５年两次雪灾的平均损失率为参考数列；以气温、降水、稳定的积雪日数、草地退化比例，草地实际载畜量、草地超载比例，、冬储草量作为比较数列，对那曲地区雪灾损失进行多因素关联分析，研究结果客观、定理地揭示了雪灾损失与各影响因素之间的相互 那曲地区雪灾的抗灾提供了科学的依据。
|
| 关 键 词： | 雪灾 灰色关联度分析 西藏 牧区 降雨 气温 积雪 |
| 文章编号： | 1000-694X(2000)04-0430-04 |
| 修稿时间： | 2000年1月20日 |
Grey Incidence Analysis of Multi-Factor on the Loss of Snow Disaster in Nagqu of Tibet |
| |
| LI Shuo,LI Wei,ZUO Wei,ZENG Zhi-yuan,FENG Xue-zhi.Grey Incidence Analysis of Multi-Factor on the Loss of Snow Disaster in Nagqu of Tibet[J].Journal of Desert Research,2000,20(4):430-433. |
| |
| Authors: | LI Shuo LI Wei ZUO Wei ZENG Zhi-yuan FENG Xue-zhi |
| |
| Abstract: | Based on the synthetical analysis, the method of the grey incidence analysis of grey system is also used. The average proportion of the loss caused by snow disaster in 1985 and 1995 is chosen as referring series. Sever factors including air temperature and average precipitation from October to next April, days of accumulated snow, proportion of grassland degeneration, quantity of livestock, overloaded proportion of pastureland, amount of herbage stored for the winter are chosen as the comparing series respectively. The degree of grey incidence is also calculated. The results objectively reveal the relations between the loss of snow disaster and the factors and provide a scientific basis for the prediction and prevention of snow disaster in Nagqu. |
| |
| Keywords: | snow disaster grey system grey incidence analysis |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
