内蒙古高原荒漠草原植物气候生产力时空演变特征  

Spatial-temporal Evolvement Characteristics of Climate Productivity for the Plants on Inner Mongolia Desert Steppe

作　　者：韩芳[1,2] 苗百岭 郭瑞清[1] 李兴华[1] 那日苏[3] 王海[3] 

机构地区：[1]内蒙古生态与农业气象中心,内蒙古呼和浩特010051 [2]内蒙古气象科学研究所,内蒙古呼和浩特010051 [3]中国农业科学院草原研究所,内蒙古呼和浩特010010

出　　处：《安徽农业科学》2010年第18期9717-9719,共3页Journal of Anhui Agricultural Sciences

基　　金：内蒙古自然科学基金项目(2009ms0603);内蒙古气象局科技创新项目(nmqxkjcx200706);中央级公益性科研院所基本科研业务费专项资金(中国农业科学院草原研究所)资助

摘　　要：利用内蒙古高原荒漠草原9个气象站1961～2007年的年平均气温、年降水量资料,采用Thornthwaite Memorial模型计算植物气候生产力(TSPV),应用气候趋势倾向率、累计距平、空间差值等方法,分析气候生产力的时空变化特征。结果表明,近47 a内蒙古高原荒漠草原植物气候生产力表现出不显著的线性增加趋势;内蒙古高原荒漠草原植物气候生产力水平呈南高北低的状态,西南部气候生产力不断增长,东南部逐渐减少;气候生产力变化速率由西北向东南方向递增,47 a来东南部朱日和地区气候生产力减少幅度最大,该区也是气候生产力变化的敏感区。Thornthwaite Memorial model and other statistic methods were used to calculate the climate-productivity of plants with the meteorological data from 1961 to 2007 at 9 stations distributed on Inner Mongolia desert steppe.The spatial and temporal variation characteristics of climate-productivity were analyzed by using the methods of the tendency rate of the climate trend,accumulative anomaly,spatial difference and so on.The results showed that the climate-productivity kept linear increased trend over Inner Mongolia desert steppe in recent 47 years,but not significant.In spatial distribution,the climate-productivity reduced with the increased latitude.The climate-productivity in southwest part of Inner Mongolia desert steppe was growing while it in the southeast was reduce.The variation rate of the climate-productivity increased from the northwest part to the southeast part of Inner Mongolia desert steppe.In recent 47 years,the decrease extent of the climate-productivity in southeast Jurh was the greatest,and the region was the sensitivearea of the climate-productivity variation.

关 键 词：荒漠草原 气候生产力 时空特征 变化速率 

分 类 号：S812.1[农业科学—草业科学]