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[1]JIN Jianxin,ZHANG Na,GUI Linguo.Temporal and Spatial Variations of the Drought Index to the Tibetan Plateau[J].Research of Soil and Water Conservation,2019,26(05):377-380.

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Temporal and Spatial Variations of the Drought Index to the Tibetan Plateau

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 26 Number of periods: 2019 05 Page number: 377-380 Column: Public date: 2019-09-06

Title:: Temporal and Spatial Variations of the Drought Index to the Tibetan Plateau

Author(s):: JIN Jianxin¹, ZHANG Na², GUI Linguo¹; 1. Institute of Resources and Environment, Ningxia Academy of Agricultural and Forestry Sciences, Yinchuan 750002, China;
2. Scientific Research Institute of Water Conservancy of Ningxia, Yinchuan 750021, China

Keywords:: drought; Tibet; UNEP drought index; precipitation; precipitation concentration index; temporal and spatial variation

CLC:: P343.1

DOI:: -

Abstract:: This study is to clarify the temporal and spatial variation characteristics of drought conditions in Tibet Autonomous Region, to understand the climate change patterns in this region, and to provide the basis for the optimal allocation of water resources in this region, especially the efficient use of agricultural water resources. The Tibet Autonomous Region was selected as the study area. Based on the daily meteorological data of 37 meteorological stations from 1981 to 2012 years, the spatiotemporal variations of UNEP drought index, precipitation and precipitation centration index(PCI) were examined. The drought degree gradually decreased over time. UNEP drought index gradually increased from west to east. The entire region from west to east progressively varied from the special arid zone to semi-humid climate zone and humid climate zone. Precipitations gradually increased from the west to the southeast, and the average annual precipitation increased from 68.8 mm to 700 mm. The concentrations of the quarterly precipitation increased from southeast to northwest region. This study can provide the practical foundations for a wide range of irrigation management and water use in Tibet Autonomous Region.

References:: [1] 张国宏,李智才,宋燕,等.中国降水量变化的空间分布特征与东亚夏季风[J].干旱区地理,2011,34(1):34-42.
[2] 徐维新,古松,苏文将,等.1971-2010年三江源地区干湿状况变化的空间特征[J].干旱区地理,2012,35(1):46-55.
[3] 马明卫,宋松柏.渭河流域干旱指标空间分布研究[J].干旱区研究,2012,29(4):681-691.
[4] 任晓东.内蒙古不同气候区ET₀估算方法(FAO-PM温度法和Hargreaves-Samani法)的适用性评价[D].呼和浩特:内蒙古农业大学,2014.
[5] 唐亦汉,陈晓宏.近50年珠江流域降雨多尺度时空变化特征及其影响[J].地理科学,2015,35(4):476-482.
[6] 张核真,马玉才.西藏地区近四十年积温变化的动态分析[J].西藏科技,2000(4):58-59.
[7] 戴睿,刘志红,娄梦筠,等.西藏地区50年气候变化特征[J].干旱区资源与环境,2012,26(12):97-101.
[8] 孙小舟,封志明,杨艳昭.西辽河流域1952-2007年参考作物蒸散量的变化趋势[J].资源科学,2009,31(3):479-484.
[9] Oliver J E. Monthly precipitation distribution:A comparative index[J]. The Professional Geographer, 1980,32(3):300-309.
[10] 詹存,梁川,赵璐.川中丘陵区季节性干旱时空分布特征及成因分析[J].农业工程学报,2013,29(21):82-90.
[11] 李泽鸣,魏占民,刘虎,等.近37年新疆福海县ET0变化趋势及影响分析[J].干旱区研究,2015,32(3):573-578.
[12] 宋艳玲,王建林,田靳峰,等.气象干旱指数在东北春玉米干旱监测中的改进[J].应用气象学报,2019,30(1):25-34.

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