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Arid Land Geography >

2020 , Vol. 43 >Issue 2: 281 - 289

DOI: https://doi.org/10.12118/j.issn.1000-6060.2020.02.01

Changes of dry/wet surfaces in Shanxi Province under global warming

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  • Climate Center of Shanxi Province,Taiyuan 030006,Shanxi,China

Received date: 2019-01-06

  Revised date: 2019-06-21

  Online published: 2020-03-25

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Abstract

Shanxi Province,China is located between 110.23°-114.55°E and 34.56°-40.73°N and has a total area of approximately 15.67×104 km2;it is located on the eastern Loess Plateau of China,with altitude mostly more than 1 000 m above sea level.Shanxi Province has a temperate continental monsoon climate with distinct seasons and is a semiarid and semihumid zone according to the dryhumid climate zones.Located in the northern margin of the East Asian monsoon,it is greatly affected by the interannual variation of the intensity of the East Asian monsoon,which causes frequent drought disasters and creates a fragile ecological environment.The surface dry/wet conditions exert important effects on local agriculture,forestry,and animal husbandry production.For these reasons,by using statistical methods,the temporal and spatial characteristics of the aridity index (AI),interdecadal changes of dry/wet areas were analyzed,and relationships between surface dryness and meteorological factors were investigated on the basis of AIs calculated by the modified PenmanMonteith model of the Food and Agriculture Organization of the United Nations;this study used meteorological observation data from 67 stations in Shanxi Province from 1961 to 2017.Quality controlled data obtained from the Shanxi Meteorological Information Center were used,including annual precipitation,daily maximum and minimum temperatures,average wind speed,sunshine hours,and relative humidity from 1961 to 2017;the data for the longitudes,latitudes,and altitudes of stations were also used.The statistical methods used mainly include trend analysis,Pearson correlation analysis,and partial correlation analysis.The results can be summarized as follows:(1) Based on an annual AI of 2.0,Shanxi Province can be divided into semiarid and semihumid zones,which are in good agreement with the observed vegetation coverage.(2) The northern and southeastern parts of Shanxi Province show a wetting trend,while most of the southwest shows a drying trend.(3) The AIs show an overall increasing trend from the 1960s to the 1990s,followed by a decreasing trend;precipitation levels exhibit an opposite trend,and the changes in evapotranspiration are divided into three stages,namely an upward trend from the 1960s to the 1970s,almost no trend from the 1980s to 2000,and then an upward trend after 2000.(4) The boundaries of semiarid and semihumid lands move to the southeast from the 1960s to the 1990s and move northwest after the 1990s;the corresponding proportions of the total area of semiarid areas expand from 52% to 73% and then decrease to 23%.(5) Both precipitation and evapotranspiration exhibit prominent effects on aridity,and the correlation of precipitation with dryness is greater than with evapotranspiration. Relative humidity,average wind speed,and sunshine hours affect dryness via evapotranspiration.The correlations between maximum/minimum temperatures and dryness/evapotranspiration are not significant.(6) The interdecadal trend of desertification in northwest Shanxi is consistent with dryness.These changes imply that the dry/wet condition is an important factor affecting desertification.The major difference from previous studies is the shift from drying to wetting.Our conclusions can be used to guide agricultural and animal husbandry production,forestry production planning,desertification control,and ecological environmental construction,especially in northwest Shanxi.A key problem to be solved is the accurate estimation of solar radiation in areas with no radiation observations and a modification of the PenmanMonteith formula for different types of reference crops or land use types to render the calculated evapotranspiration values suitable for different surfaces.In the future,it will be helpful to guide agricultural production,ecological environmental construction,and desertification control to establish an index similar to dryness and to define a threshold that can accurately depict the spatial distribution of the vegetation extent or desertification.

Key words： FAO PenmanMonteith; aridity; climate; Shanxi

Cite this article

ZHANG Guohong, ZHANG Dongfeng, ZHAO Yongqiang, TIAN Guozhen, AN Wei .

Changes of dry/wet surfaces in Shanxi Province under global warming[J]. Arid Land Geography, 2020 , 43(2) : 281 -289 . DOI: 10.12118/j.issn.1000-6060.2020.02.01

References

［1］IPCC．Climate Change 2013：The Physical Science Basis．Contribution of working group 1 to the fifth assessment report of the Intergovernmental Panel on Climate Change［M］．Cambridge：Cambridge University Press，2014：161． ［2］张林．2018年中国气候变化蓝皮书发布［N］．中国气象报，2018-4-4（1）．［ZHANG Lin．Release of China’s blue paper on climate change in 2018［N］．China Meteorological Daily，2018-4-4（1）．］ ［3］张祖光，郝卫平，李昊儒，等．山西省春玉米生育期干旱特征分析［J］．中国农业气象，2015，36(6)：754-761．［ZHANG Zuguang，HAO Weiping，LI Haoru，et al．Analysis on the drought characteristics in different growth stages of spring maize in Shanxi Province［J］．Chinese Journal of Agrometeorology，2015，36(6)：754-761．］ ［4］代海燕，都瓦拉，王晓江，等．基于GIS的内蒙古林业气候区划［J］．干旱气象，2017，35(2)：337-341．［DAI Haiyan，DU Wala，WANG Xiaojiang，et al．Forestry climatic civision in Inner Mongolia based on GIS［J］．Journal of Arid Meteorology，2017，35(2) ：337-341．］ ［5］韩宇平，张冰，黄会平，等．华北平原干燥度指数时空分布特征及其影响因素分析［J］．干旱区地理，2016，39(4)：695-703．［HAN Yuping， ZHANG Bing，HUANG Huiping，et al．Spatial-temporal characteristics of aridity index and its influencing factors in North China Plain［J］．Arid Land Geography，2016，39(4)：695-703．］ ［6］孟猛，倪健，张治国．地理生态学的干燥度指数及其应用评述［J］．植物生态学报，2004，28(6)：853-861．［MENG Meng，NI Jian，ZHANG Zhiguo．Aridity index and its applications in geo-ecological study［J］．Acta Phytoecologica Sinica，2004，28（6）：853-861．］ ［7］刘宇峰，原志华，封建民，等.基于地表湿润指数的1959─2014年陕西省地表干湿时空变化特征［J］.干旱区地理，2016，39(6)：1186-1196．［LIU Yufeng，YUAN Zhihua，FENG Jianmin，et al．Dry-wet condition of Shaanxi Province in recent 56 years based on surface humidity index［J］. Arid Land Geography，2016，39(6)：1186-1196．］ ［8］张存杰，廖要明，段居琦，等．我国干湿气候区划研究进展［J］．气候变化研究进展，2016，12(4)：261-267．［ZHANG Cunjie，LIAO Yaoming，Duan Juqi，et al．The progresses of dry-wet climate division research in China［J］．Climate Change Research，2016，12(4)：261-267．］ ［9］申双和，张方敏，盛琼．1975—2004年中国湿润指数时空变化特征［J］．农业工程报，2009，25(1)：11-15．［SHEN Shuanghe， ZHANG Fangmin，SHENG Qiong．Spatio-temporal changes of wetness index in China from 1975 to 2004［J］．Transactions of the CSAE，2009，25(1)：11-15．］ ［10］张庆云，陈烈庭．近30 a来中国气候的干湿变化［J］．大气科学，1991，15(5)：72-81．［ZHANG Qingyun，CHEN Lieting．Dry and wet change of China climate in recent 30 years［J］．Scientia Atmospherica Sinica，1991，15(5)：72-81．］ ［11］杨建平，丁永建，陈仁升，等．近50 a来中国干湿气候界线的10年际波动［J］．地理学报，2002，57(6)：655-661．［YANG Jianping，DING Yongjian，CHEN Rensheng，et al．The interdecadal fluctuation of dry and wet climate boundaries in China in recent 50 years［J］．Acta Geographica Sinica，2000，57(6)：655-661．］ ［12］王菱，谢贤群，李运生，等．中国北方地区40 a来湿润指数和气候干湿带界线的变化［J］．地理研究，2004，23(1)：45-54．［WANG Ling，XIE Xianqun，LI Yunsheng，et al．Changes of humid index and borderline of wet and dry climate zone in northern China over the past 40 years［J］．Geographical Research，2004，23(1)：45-54．］ ［13］郑然，李栋梁．1971─2011年青藏高原干湿气候区界线的年代际变化［J］．中国沙漠，2016，36(4)：1106-1115．［ZHENG Ran，LI Dongliang．Decadal changes of the wet and dry climate zone boundaries in the QinghaiTibet Plateau during 1971-2011［J］．Journal of Desert Research，2016，36(4)：1106-1115．］ ［14］马柱国，符淙斌．中国北方干旱区地表湿润状况的趋势分析［J］．气象学报，2001，59(6)：737-746．［MA Zhuguo，FU Congbin．Trend of surface humid index in the arid area of northern China［J］．Acta Meteorologica Sinica，2001，59(6)：737-746．］ ［15］史建国，张燕卿，何文清，等．黄河流域干燥度时空格局变化研究［J］．干旱地区农业研究，2009，27(1)：242-247．［SHI Jianguo，ZHANG Yanqing，HE Wenqing，et al．Application and comparison of three meteorological drought indices［J］．Agricultural Research in the Arid Areas，2009，27（1）：242-247．］ ［16］张红丽，张强，刘骞，等．中国南方和北方气候干燥程度的变化特征及差异性分析［J］．高原气象，2016，35(5)：1339-1351．［ZHANG Hongli，ZHANG Qiang，LIU Qian，et al．Analysis on variation characteristics and differences of the climate drying degree between south and north of China［J］．Plateau Meteorology，2016，35（5）：1339-1351．］ ［17］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．［HU Ziying，ZHOU Junju，ZHANG Lili，et al．Climate dry-wet change and drought evolution characteristics of different dry-wet areas in northern China［J］．Acta Ecologica Sinica，2018，38(6)：1908-1919．］ ［18］郭慕萍，刘月丽，安炜，等．山西气候［M］．北京：气象出版社，2014：225-232．［GUO Muping，LIU Yueli，AN Wei，et al．Shanxi climate［M］．Beijing：China Meteorological Press，2014：225-232．］ ［19］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．［ZHANG Guohong，LI Zhicai，SONG Yan，et al．Spatial patterns of change trend in rainfall of China and the role of east Asia summer monsoon［J］．Arid Land Geography，2011，34（1）：34-42．］ ［20］张国宏，郭慕萍，赵海英．近45 a山西省降水变化特征［J］．干旱区研究，2008，25(6)：858-862．［ZHANG Guohong，GUO Muping， ZHAO Haiying．Study on the change of precipitation in Shanxi Province since recent 45 years［J］．Arid Zone Research，2008，25(6)：858-862．］ ［21］屠其璞，王俊德，丁裕国，等．气象应用概率统计学［M］．北京：气象出版社，1984：246-249．［TU Qipu，WANG Junde，DING Yuguo，et al．Probability and statistics on meterological application［M］．Beijing：China Meterological Press,1984：246-249．］ ［22］毛飞，孙涵，杨红龙．干湿气候区划研究进展［J］．地理科学进展，2011，30(1)：17-26．［MAO Fei，SUN Han，YANG Honglong．Research progress in dry/wet climate zoning［J］．Progress in Geography，2011，30(1)：17-26．］ ［23］GB/T 20481-2017，中华人民共和国国家标准：气象干旱等级［S］．［GB/T 20481-2017，National standard of the People’s Republic of China:Grades of meteorological drought［S］．］ ［24］ALLEN R G，PEREIRA L S，RAES D，et al．Crop evapotranspiration:Guidelines for computing crop water requirements［R］．Rome，FAO Irrigation and drainage paper 56，1998． ［25］祝昌汉．再论总辐射的气候计算方法［J］．南京气象学院学报，1982，5(2)：196-206．［ZHU Changhan．Re-exploration of climatological calculation of total radiation［J］．Journal of Nanjing Institute of Meteorology，1982，5(2)：196-206．］ ［26］冯妍，何彬方，唐怀瓯，等．安徽省2000─2009年不同类型植被的变化及其与气温、降水的关系［J］．生态学杂志，2012，31（11）：2926-2934．［FENG Yan，HE Bingfang，TANG Huaiou，et al．Variation patterns of different types of vegetation in Anhui Province of east China in 2000-2009 in relation to air temperature and precipitation［J］．Chinese Journal of Ecology，2012，31（11）：2926-2934．］ ［27］党跃军，王礼霄，严俊霞．山西省2003─2012年植被时空变化格局及对气候因子的响应［J］．水土保持研究，2015，22(2)：235-240．［DANG Yuejun，WANG Lixiao，YAN Junxia．Spatiotemporal dynamics of vegetation and its response to climate factors in Shanxi Province from 2003 to 2012［J］．Research of Soil and Water Conservation，2015，22(2)：235-240．］ ［28］靳立亚，李静，王新，等．近50 a来中国西北地区干湿状况时空分布［J］．地理学报，2004，59(6)：847-854．［JIN Liya，LI Jing，Wang Xin，et al．The temporal and spatial distribution of surface dry-wet conditions over Northwestern China in recent 50 years［J］．Acta Geographica Sinica，2004，59(6)：847-854．］ ［29］丁文广，陈利珍，李丹璐，等.1975─2014年晋西北地区沙漠化动态变化趋势研究［J］.干旱区地理，2016，39(5)：994-1003.［DING Wenguang，CHNE Lizhen，LI Danlu，et al．Dynamic change trend of desertification in Northwest Shanxi Province during 1975-2014［J］．Arid Land Geography，2016，39(5)：994-1003.］
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