PDF Download

[1]XU Hui,GUAN Bei,XUE Yan,et al.Spatiotemporal Variations of Dry Spell in Inner Mongolia in Recent 53 Years[J].Research of Soil and Water Conservation,2015,22(03):304-308.

Copy

Spatiotemporal Variations of Dry Spell in Inner Mongolia in Recent 53 Years

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 22 Number of periods: 2015 03 Page number: 304-308 Column: Public date: 2015-06-28

Title:: Spatiotemporal Variations of Dry Spell in Inner Mongolia in Recent 53 Years

Author(s):: XU Hui¹, GUAN Bei¹, XUE Yan², HUANG Jin²; 1. Nanjing Research Institute of Environmental Protection, Nanjing 210013, China;
2. School of Environmental Science and Technology, Nanjing University of Information Science and Technology, Nanjing 210044, China

Keywords:: Inner Mongolia; dry spell; space and time changing characteristics; trend

CLC:: P462.3;P426.6

DOI:: -

Abstract:: Base on the daily precipitation data from 46 meteorological stations in Inner Mongolia Autonomous Region, north China, the space and time changing characteristics of dry spell were investigated during the period from 1960 to 2012 in this study. The three dry spell indices such as number of dry spell (NDS), mean length of dry spell (MDS), and maximum length of dry spell (MLDS) were calculated, and the linear trend estimation method and MK trend test method were used to analyze the changing characteristics of dry spell indices. The results indicated that the decline of mean MDS and MLDS along the east to west gradient for has been found. Mean NDS shows an opposite distribution compared with mean MDS and MLDS. It seems to indicate that drought in the western area is much severer than other area. On the annual scale, most stations display insignificant decrease trends for NDS and MLDS, most stations display insignificant increase trends for MLDS. On the monthly scale, the changes of dry spell in July and August in Inner Mongolia are obvious. In July and August, the NDS shows significant decrease trend, the MDS and MLDS show significant increase trends. This result means that the summer droughts become increasingly serious in Inner Mongolia.

References:: [1] 李成,王让会,黄进.天山北麓近50年气温和降水的变化特征[J].水土保持研究,2013,20(6):117-124.
[2] 杨波,张勃,安美玲,等.1961-2011年秦巴山区极端降水事件的时空特征分析[J].水土保持研究,2014,21(1):110-116.
[3] 顾欣,杨绍洪,黄大卫,等.黔东南地区各季节极端干期日数的时空分布特征[J].高原气象,2012,31(2):463-469.
[4] 王莺,王劲松,姚玉璧,等.中国华南地区持续干期日数时空变化特征[J].生态环境学报,2014,23(1):86-94.
[5] 陈昌春,张余庆,王腊春,等.基于RClimDex模型的江西省极端降水时空变化研究[J].中国农村水利水电,2013(11):41-45.
[6] 李庆祥,彭嘉栋,沈艳.1900-2009年中国均一化逐月降水数据集研制[J].地理学报,2012,67(3):301-311.
[7] She D, Xia J. The spatial and temporal analysis of dry spells in the Yellow River basin, China[J]. Stochastic Environmental Research and Risk Assessment,2013,27(1):29-42.
[8] 李宗省,何元庆,辛惠娟,等.我国横断山区1960-2008年气温和降水时空变化特征[J].地理学报,2010,65(5):563-579.
[9] 徐宗学,孟翠玲,赵芳芳.山东省近40 a来的气温和降水变化趋势分析[J].气象科学,2007,27(4):387-393.
[10] 霍雨,王腊春,陈晓玲,等.1950s以来鄱阳湖流域降水变化趋势及其持续性特征[J].湖泊科学,2011,23(3):454-462.
[11] 张雪艳,胡云锋,庄大方,等.蒙古高原NDVI的空间格局及空间分异[J].地理研究,2009,28(1):10-18.
[12] 孙建奇,敖娟.中国冬季降水和极端降水对变暖的响应[J].科学通报,2013,58(8):674-679.
[13] 吴长刚,刘鸿升,谢安.夏季风北推和强度对我国北方夏季降水影响的年代际特征[J].高原气象,2006,24(5):656-665.
[14] 李新周,马柱国,刘晓东.中国北方干旱化年代际特征与大气环流的关系[J].大气科学,2006,30(2):277-284.
[15] 包刚,吴琼,包玉海.近30年内蒙古气温和降水量变化分析[J].内蒙古师范大学学报:自然科学版,2012,41(6):668-674.
[16] 张清雨,吴绍洪,赵东升,等.内蒙古草地生长季植被变化对气候因子的响应[J].自然资源学报,2013,28(5):754-764.

Similar References:

Memo

Last Update: 1900-01-01