[1]祁栋林,李晓东,苏文将,等.近50年青海省风蚀气候侵蚀力时空演变趋势[J].水土保持研究,2015,22(06):234-239.
　QI Donglin,LI Xiaodong,SU Wenjiang,et al.Tendency of Spatiotemporal Evolution of Wind Erosion Climatic Erosivity in Qinghai Province in Recent 50 Years[J].Research of Soil and Water Conservation,2015,22(06):234-239.
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近50年青海省风蚀气候侵蚀力时空演变趋势

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 22 期数: 2015年06期 页码: 234-239 栏目: 出版日期: 2015-12-28
Title:
Tendency of Spatiotemporal Evolution of Wind Erosion Climatic Erosivity in Qinghai Province in Recent 50 Years
作者:
祁栋林1, 李晓东1,2, 苏文将1, 周万福1, 肖宏斌1
1. 青海省气象科学研究所, 西宁 810001;
2. 中国气象局成都高原气象研究所, 成都 610072
Author(s):
QI Donglin1, LI Xiaodong1,2, SU Wenjiang1, ZHOU Wanfu1, XIAO Hongbin1
1. Qinghai Institute of Meteorological Science, Xining 810001, China;
2. Institute of Plateau Meteorology, CMA, Chengdu 610072, China
关键词:
风蚀气候侵蚀力; 风蚀气候因子; 相对贡献率; Mann-Kendall检验; 青海省
Keywords:
wind erosion climatic erosivity; wind erosion climatic erosivity factor; relative contribution rate; Mann-Kendall test; Qinghai Province
分类号:
P425.6
摘要:
利用青海省43个气象站1961—2010年的观测资料，选择联合国粮农组织给出的风蚀气候因子指数计算公式，计算了青海省风蚀气候因子指数值，以此阐述了风蚀气候侵蚀力的基本特征。结果表明，多年平均风蚀气候因子指数C值得分布范围为-12.9～160.1，整个青海省的平均值为32.4；从空间分布来看，C值由西北部向东南部呈减小趋势，最大值出现在柴达木盆地的茫崖；风蚀气候因子指数具有显著的月际和季节变化，春季最大，冬季次之，夏季最小；近50 a来风蚀气候因子指数总体上呈现减小趋势，说明风蚀气候侵蚀力在降低；风蚀气候侵蚀力主要受风速的制约，与降水和沙尘暴日数的关系不显著。
Abstract:
By making use of calculation method of wind erosion climatic erosivity factor index developed by FAO and observation data from 43 meteorological stations during 1961 to 2010 in Qinghai Province, we analyzed the basic features of wind erosion climatic erosivity. The results showed that the range of wind erosion climatic erosivity factor index of C value varied from -12.9 to 160.1; the average of C value was 32.4 in Qinghai Province. Spatially, C value displayed the decrease trend from northwest to southeast and the maximum of C value appeared at Mangai in the Qaidam Basin. Wind erosion climatic erosivity factor had seasonal and inter-monthly variation, the highest value showed in spring, the second one in winter and the lowest one in summer. Wind erosion climatic erosivity factor had the decrease tendency in recent 50 years which revealed that wind erosion climatic erosivity was reducing. Wind speed was main restricting factors of wind erosion climatic erosivity. The relationship between wind erosion climatic erosivity, precipitation and sandstorm days was not significant.

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备注/Memo

收稿日期:2015-02-12;改回日期:2015-03-13。
基金项目:国家自然科学基金地区科学资助项目（41161009，41165008）；公益性行业（气象）专项（GYGH201306054，GYHY201506001）；高原气象研究所资助项目（LPM2014004）
作者简介:祁栋林(1967-),男(蒙古族),青海乐都人,高级工程师,主要从事天气气候变化和大气成分研究。E-mail:qidl007@163.com

更新日期/Last Update: 1900-01-01