PDF Download

[1]LI Shangfei,GE Wenyan,WANG Fei.Characteristics of Drought Events and Their Impacts on Vegetation in Northern China from 1982 to 2019[J].Research of Soil and Water Conservation,2023,30(03):251-259.[doi:10.13869/j.cnki.rswc.2023.03.017]

Copy

Characteristics of Drought Events and Their Impacts on Vegetation in Northern China from 1982 to 2019

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 30 Number of periods: 2023 03 Page number: 251-259 Column: Public date: 2023-04-10

Title:: Characteristics of Drought Events and Their Impacts on Vegetation in Northern China from 1982 to 2019

Author(s):: LI Shangfei¹, GE Wenyan^1,2, WANG Fei^1,2; (1.Institute of Soil and Water Conservation, Northwest A&F University, Yangling, Shaanxi 712100, China; 2.Institute of Soil and Water Conservation, Chinese Academy of Sciences and ministry of Water Resources, Yangling, Shaanxi 712100, China)

Keywords:: SPEI; run theory; drought events; NDVI standardization anomaly

CLC:: P463.22

DOI:: 10.13869/j.cnki.rswc.2023.03.017

Abstract:: [Objective]Exploring the characteristics of drought events and their impacts on vegetation in northern china is of great significance for drought risk assessment and reducing the impact of drought on ecosystems. [Methods] Based on the standardized precipitation evapotranspiration index(SPEI), the temporal and spatial distribution characteristics of drought in northern China from 1982 to 2019 were analyzed, the typical drought events in drought response sensitive areas in northern China were identified and characterized by using the run theory, and the impacts of different drought events on the normalized vegetation index(NDVI)standardized anomaly(SA_NDVI)on the temporal and spatial scale were further discussed. [Results] Over the past38 years, the climate drought in northern China had continued to worsen(slope_SPEI=-0.001 2/month, p<0.01), and mainly concentrated in the middle east of Xinjiang, the north of Qinghai and the east of Inner Mongolia. Drought events with high frequency, short duration and medium and low intensity mainly occurred in the south of northern China, while drought events with low frequency, long duration and high intensity mainly occurred in the north. During the study period, 10 typical drought events occurred in the drought response sensitive area of northern China, and there were great differences in the drought characteristics of different drought events. In terms of the impact of drought events on vegetation growth, it could be preliminarily determined that for a drought event, when the drought duration was no more than 3 months, the drought intensity played the major role in the vegetation growth process; when the drought lasted more than 3 months, the drought severity began to play a major role. [Conclusion] Only when the drought duration exceeds a certain range, the accumulation and lag effect of early drought will be gradually reflected, and the subsequent drought will lead to a significant decline in vegetation productivity. This conclusion can provide theoretical support for ecological protection in northern China.

References:: [1] 王兆礼,黄泽勤,李军,等.基于SPEI和NDVI的中国流域尺度气象干旱及植被分布时空演变[J].农业工程学报,2016,32(14):177-178.
[2] 姜大膀,王晓欣.对IPCC第六次评估报告中有关干旱变化的解读[J].大气科学学报,2021,44(5):650-653.
[3] Ge W Y, Han J Q, Zhang D J, et al. Divergent impacts of droughts on vegetation phenology and productivity in the Yungui Plateau, southwest China[J]. Ecological Indicators, 2021,127:107743.
[4] Zhong R D, Chen X H, Lai C G, et al. Drought monitoring utility of satellite-based precipitation products across mainland China[J]. Journal of Hydrology, 2018,568:345-349.
[5] 高继卿,杨晓光,董朝阳,等.气候变化背景下中国北方干湿区降水资源变化特征分析[J].农业工程学报,2015,31(12):99-105.
[6] 任国玉,柳艳菊,孙秀宝,等.中国大陆降水时空变异规律Ⅲ:趋势变化原因[J].水科学进展,2016,27(3):327-348.
[7] 李伟光,易雪,侯美亭,等.基于标准化降水蒸散指数的中国干旱趋势研究[J].中国生态农业学报,2012,20(5):643-649.
[8] Li J, Wang Z L, Lai C G. Severe drought events inducing large decrease of net primary productivity in mainland China during 1982-2015[J]. Science of the Total Environment, 2020,703:135541.
[9] 尹云鹤,马丹阳,邓浩宇,等.中国北方干湿过渡区生态系统生产力的气候变化风险评估[J].地理学报,2021,76(7):1605-1614.
[10] 贾艳青,张勃.1960—2017年中国北方气候干湿变化及其与ENSO的关系[J].地理科学,2020,40(12):2115-2124.
[11] Vicente S, Sergio M, Santiago B, et al. A multiscalar drought index sensitive to global warming:The standardized precipitation evapotranspiration index[J]. Journal of Climate, 2010,23(7):1696-1718.
[12] Herbst P H, Bredenkamp D, Barker H. A technique for the evaluation of drought from rainfall data[J]. Journal of Hydrology, 1966,4:264-272.
[13] He J, Yang X H, Li Z, et al. Spatiotemporal variations of meteorological droughts in China During 1961-2014:An investigation based on multi-threshold identification[J]. International Journal of Disaster Risk Science, 2016,7(1):63-76.
[14] Jiang W X, Wang L C, Zhang M, et al. Analysis of drought events and their impacts on vegetation productivity based on the integrated surface drought index in the Hanjiang River Basin, China[J]. Atmospheric Research, 2021,254:105536.
[15] 王素萍,张存杰,李耀辉,等.基于标准化降水指数的1960—2011年中国不同时间尺度干旱特征[J].中国沙漠,2014,34(3):827-834.
[16] 轩俊伟,郑江华,刘志辉.基于SPEI的新疆干旱时空变化特征[J].干旱区研究,2016,33(2):338-339.
[17] Sergio M. Vicente-Serrano, Celia Gouveia, et al. Response of vegetation to drought time-scales across global land biomes[J]. Proceedings of the National Academy of Sciences of the United States of America, 2013,110(1):52-57.
[18] Xu H J, Wang X P, Zhao C Y, et al. Diverse responses of vegetation growth to meteorological drought across climate zones and land biomes in northern China from 1981 to 2014[J]. Agricultural and Forest Meteorology, 2018,262:1-2.
[19] 孙艺杰,刘宪锋,任志远,等.1960—2016年黄土高原多尺度干旱特征及影响因素[J].地理研究,2019,38(7):1820-1832.
[20] 高露,张圣微,朱仲元,等.放牧对干旱半干旱草原植物群落结构和生态功能的影响[J].水土保持研究,2019,26(6):209-211.
[21] Zhou S, Wang Y, Li Z, et al. Characterizing spatio-temporal patterns of multi-scalar drought risk in mainland China[J]. Ecological Indicators, 2021,131:108189.
[22] 倪深海,顾颖,彭岳津,等.近七十年中国干旱灾害时空格局及演变[J].自然灾害学报,2019,28(6):176-181.
[23] 王闪闪,王素萍,冯建英.2016年全国干旱状况及其影响与成因[J].干旱气象,2017,35(2):342-351.
[24] 张宇,王素萍,冯建英.2017年全国干旱状况及其影响与成因[J].干旱气象,2018,36(2):331-338.
[25] 胡子瑛,周俊菊,张利利,等.中国北方气候干湿变化及干旱演变特征[J].生态学报,2018,38(6):1908-1919.
[26] 顾锡羚,郭恩亮,银山,等.干旱对内蒙古植被生长的累积与滞后影响评估研究[J].草地学报,2021,29(6):1302-1308.
[27] Zhao A Z, Yu Q Y, Feng L, et al. Evaluating the cumulative and time-lag effects of drought on grassland vegetation:A case study in the Chinese Loess Plateau[J]. Journal of Environmental Management, 2020,261:110214.
[28] Wang C, Huang M, Zhai P. Change in drought conditions and its impacts on vegetation growth over the Tibetan Plateau[J]. Advances in Climate Change Research, 2021,12(3):333-341.
[29] Wang H, Vicente S M, Tao F, et al. Monitoring winter wheat drought threat in Northern China using multiple climate-based drought indices and soil moisture during 2000—2013[J]. Agricultural and Forest Meteorology, 2016,229:1-12.

Similar References:

Memo

Last Update: 2023-04-10