[1]赵飞飞,张显云,付 婷,等.贵州省不同地貌类型土壤湿度变化及其对气候变化的响应[J].水土保持研究,2021,28(06):217-225.
　ZHAO Feifei,ZHANG Xianyun,FU Ting,et al.Variation of Soil Moisture of Its Response to Climate Change in Different Geomorphological Types of Guizhou Province[J].Research of Soil and Water Conservation,2021,28(06):217-225.
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贵州省不同地貌类型土壤湿度变化及其对气候变化的响应

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 28 期数: 2021年06期 页码: 217-225 栏目: 出版日期: 2021-10-10
Title:
Variation of Soil Moisture of Its Response to Climate Change in Different Geomorphological Types of Guizhou Province
文章编号:
1005-3409(2021)06-0217-09
作者:
赵飞飞1，张显云1，付 婷1，廖留峰2，聂士海1
(1.贵州大学 矿业学院，贵阳 550025; 2.贵州省生态气象和卫星遥感中心，贵阳 550002)
Author(s):
ZHAO Feifei1，ZHANG Xianyun1，FU Ting1，LIAO Liufeng2，NIE Shihai1
(1.Mining Colllege，Guizhou University，Guiyang 550025，China; 2.Guizhou Ecological Meteorology and Satellite Remote Sensing Center，Guiyang 550002，China)
关键词:
土壤湿度;  时空变化;  M-K突变检验;  气象因子
Keywords:
soil moisture;  spatiotemporal variation;  M-K mutation test;  meteorological factors
分类号:
P237
文献标志码:
A
摘要:
为探究贵州省不同地貌类型土壤湿度时空变化及其对气候变化的响应，基于欧洲中期天气预报中心第五代再分析资料数据集(ERA5)，通过一元线性回归、滑动平均、Mann-Kendall突变检验、滑动T检验及相关性分析法，分析了贵州省土壤湿度时空变化特征，揭示了温度和降水的变化对土壤湿度的影响。结果表明:(1)31年来，贵州省表层(0—7 cm)、中层(7—28 cm)及深层(28—100 cm)土壤湿度均呈显著降低趋势，并随着土层深度的增加而加快;(2)贵州省不同深度土壤湿度的下降速率均表现为西快东慢的空间分布特征，其中峰丛洼地地区下降最为明显;(3)1979—2009年，研究区各层土壤湿度与降水间的相关性更强，相关性呈东高西低的空间分布特征，但在喀斯特盆地和喀斯特峡谷地区，土壤湿度与温度间的相关关系更为密切;(4)2001年后，各层土壤湿度与降水的相关系数平均减小了10.29%，而与温度的相关系数却增加了137.59%，该现象在喀斯特高原以及峰丛洼地最为明显，表明温度可能是造成土壤湿度2001年突变的主导因素。
Abstract:
In order to explore the temporal and spatial variation of soil moisture in different geomorphological types in Guizhou Province and its response to climate change，based on the fifth generation reanalysis data set of the European Center for Medium Range Weather Forecast，the linear regression，sliding average，Mann-Kendall mutation test，sliding T test and correlation analysis were used to analyze the temporal and spatial variation characteristics of soil moisture in Guizhou Province，and the influence of changes in temperature and precipitation on soil moisture was revealed. The results show that:(1)in the past 31 years，the soil moisture contents in the surface layer(0—7 cm)，middle layer(7—28 cm)and deep layer(28—100 cm)of Guizhou Province had shown a significant decrease trend，which was accelerated with the increase of soil depth;(2)the decreasing rate of soil moisture at different depths in Guizhou Province was characterized by spatial distribution characteristics of quickness in the west and slowness in east，among which the decline was most obvious in peak-cluster depression area;(3)from 1979 to 2009，the correlation between soil moisture and precipitation in each layer of the study area was stronger than that between soil moisture and temperature，showing a spatial distribution characteristic of high in the east and low in the west; however，in karst basins and karst valleys，the correlation between soil moisture and temperature was closer;(4)after 2001，the correlation between soil moisture and precipitation in each layer decreased by 10.29% on average，while the correlation with temperature increased by 137.59%; this phenomenon was most obvious in karst plateaus and peak cluster，indicating that temperature might be the leading factor causing the abrupt change of soil moisture in 2001.

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备注/Memo

收稿日期:2020-11-23 修回日期:2020-12-14
资助项目:国家自然科学基金(41701464，41901225); 贵州省科技计划项目(黔科合基础[2017]1054，[2017]1026，[2016]1028); 贵州省科技支撑计划([2017]2593); 贵州大学引进人才科研项目(贵大人基合字(2016)51号，(2015)28号)
第一作者:赵飞飞(1995—)，男，贵州遵义人，硕士研究生，研究方向为遥感土壤水分反演。E-mail:912066249@qq.com
通信作者:张显云(1974—)，男，贵州遵义人，硕士，副教授，主要从事RS，GNSS的理论及应用研究。E-mail:mec.xyzhang@gzu.edu.cn

更新日期/Last Update: 2021-10-10