基于温度植被干旱指数法(TVDI)的朝阳县干旱监测
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摘要
利用Landsat 8数据,将归一化植被指数(NDVI)和地表温度(Ts)结合建立二维特征空间,依据二维特征空间分布图拟合干、湿边方程,进而计算温度植被干旱指数(TVDI),并对旱情分布进行分析和评价。利用土壤含水率实测值与反演的地表温度建立模型,并通过模型反演出土壤含水率与实测值进行精度检验。结果表明,随着归一化植被指数的增加,最大地表温度(Tsmax)随之减小,最小地表温度(Tsmin)基本上随之增大,Tsmin和Tsmax的趋势线交汇于一点组合成近似的三角形形状;2016年5—8月,朝阳县全县范围内基本都存在不同程度的旱情,其中6月份旱情最为严重;TVDI与不同深度的土壤含水率的相关性显著,可以较好的实现对旱情的监测。
In order to explore the drought in Chaoyang County of Liaoning province from May to August in 2016,to combine the normalized difference vegetation index( NDVI) and surface temperature( Ts) to establish a two-dimensional characteristic spatial distribution using Landsat 8 data. The two-dimensional characteristic spatial distribution was used to fit the dry and wet side equations,calculate the temperature vegetation dryness index( TVDI),and analyze the drought distribution and evaluation. The model was established by using the measured values of soil water content and the retrieved land surface temperature. Model verification and accuracy analysis were relayed by the measured values and the retrieved soil water content. The results showed that the maximum surface temperature decreased,and the minimum surface temperature basically increased with the increase of NDVI. Minimum surface temperature and the maximum surface temperature trend line intersected in one point into triangle shape approximation.In 2016,from May to August,there were different levels of drought in Chaoyang County,and the worst drought oc-curred in June. The correlation between TVDI and soil moisture at different depths was significant. Thus,TVDI can be used to monitor drought conditions.
In order to explore the drought in Chaoyang County of Liaoning province from May to August in 2016,to combine the normalized difference vegetation index( NDVI) and surface temperature( Ts) to establish a two-dimensional characteristic spatial distribution using Landsat 8 data. The two-dimensional characteristic spatial distribution was used to fit the dry and wet side equations,calculate the temperature vegetation dryness index( TVDI),and analyze the drought distribution and evaluation. The model was established by using the measured values of soil water content and the retrieved land surface temperature. Model verification and accuracy analysis were relayed by the measured values and the retrieved soil water content. The results showed that the maximum surface temperature decreased,and the minimum surface temperature basically increased with the increase of NDVI. Minimum surface temperature and the maximum surface temperature trend line intersected in one point into triangle shape approximation.In 2016,from May to August,there were different levels of drought in Chaoyang County,and the worst drought oc-curred in June. The correlation between TVDI and soil moisture at different depths was significant. Thus,TVDI can be used to monitor drought conditions.
引文
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[9]鲍艳松,刘利,孔令寅,等.基于ASAR的冬小麦不同生育期土壤湿度反演[J].农业工程学报,2010,26(9):224-232.BAO Y S,LIU L,KONG L Y,et al.Soil moisture estimation at various growth stages of winter wheat based on ASAR data[J].Transactions of the Chinese Society of Agricultural Engineering,2010,26(9):224-232.(in Chinese)
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[11]赵广敏,李晓燕,李宝毅.基于地表温度和植被指数特征空间的农业干旱遥感监测方法研究综述[J].水土保持研究,2010,17(5):245-250.ZHAO G M,LI X Y,LI B Y.An overview on agricultural drought montoring methods based on land surface temperature and vegetation index feature space[J].Research of Soil and Water Conservation,2010,17(5):245-250.(in Chinese with English abstract)
[12]张顺谦,卿清涛,侯美亭,等.基于温度植被干旱指数的四川伏旱遥感监测与影响评估[J].农业工程学报,2007,23(9):141-146.ZHANG S Q,QING Q T,HOU M T,et al.Remote sensing and impact estimation for Sichuan hot-drought based on temperature vegetation dryness index[J].Transactions of the Chinese Society of Agricultural Engineering,2007,23(9):141-146.(in Chinese with English abstract)
[13]赵丽花,杜培军,逄云峰,等.基于温度植被旱情指数的徐州市郊干旱遥感监测[J].水土保持通报,2010,30(4):110-114,247.ZHAO L H,DU P J,PANG Y F,et al.Monitoring drought using temperature/vegetation drought index based on remote sensing images[J].Bulletin of Soil and Water Conservation,2010,30(4):110-114,247.(in Chinese with English abstract)
[14]张宁宁,迟道才,袁吉.朝阳地区干旱特征分析及抗旱对策研究[J].中国农村水利水电,2006(9):61-63,66.ZHANG N N,CHI D C,YUAN J.Analysis of the characters and countermeasures against drought in Chaoyang prefecture[J].China Rural Water and Hydropower,2006(9):61-63,66.(in Chinese with English abstract)
[15]郭宗凯.辽宁省朝阳地区干旱发生规律的硏究[D].沈阳:沈阳农业大学学报,2016.GUO Z K.Study on the occurrence of drought about arid region of Chaoyang city of Liaoning province[D].Shenyang:Shenyang Agricultural University,2016.(in Chinese with English abstract)
[16]季国华,胡德勇,王兴玲,等.基于Landsat 8数据和温度-植被指数的干旱监测[J].自然灾害学报,2016,25(2):43-52.JI G H,HU D Y,WANG X L,et al.Drought monitoring based on Landsat 8 data and temperature/vegetation index[J].Journal of Natural Disasters,2016,25(2):43-52.(in Chinese with English abstract)
[17]申健,常庆瑞,李粉玲,等.基于时序NDVI的关中地区冬小麦种植信息遥感提取[J].农业机械学报,2017,48(3):215-220,260.SHEN J,CHANG Q R,LI F L,et al.Extraction of winter wheat information based on time-series NDVI in Guanzhong area[J].Transactions of the Chinese Society for Agricultural Machinery,2017,48(3):215-220,260.(in Chinese with English abstract)
[18]吴志刚,江滔,樊艳磊,等.基于Landsat8数据的地表温度反演及分析研究:以武汉市为例[J].工程地球物理学报,2016,13(1):135-142.WU Z G,JIANG T,FAN Y L,et al.Land surface temperature retrieval and result analysis based on Landsat8 data in Wuhan city[J].Chinese Journal of Engineering Geophysics,2016,13(1):135-142.(in Chinese with English abstract)
[19]SANDHOLT I,RASMUSSEN K,ANDERSEN J.A simple interpretation of the surface temperature/vegetation index space for assessment of surface moisture status[J].Remote Sensing of Environment,2002,79(2):213-224.
[20]PRICE J C.Using spatial context in satellite data to infer regional scale evapotranspiration[J].IEEE Transactions on Geoseience and Remote Sensing,1990,28(5):940-948.
[21]CARLSON T N,GILLIES R R,SCHMUGGE T J.An interpretation of methodologies for indirect measurement of soil water content[J].Agricultural and Forest Meteorology,1995,77(3/4):191-205.
[22]齐述华,王长耀,牛铮.利用温度植被旱情指数(TVDI)进行全国旱情监测研究[J].遥感学报,2003,7(5):420-427,436.QI S H,WANG C Y,NIU Z.Evaluating soil moisture status in china using the temperature/vegetation dryness index(TVDI)[J].Journal of Remote Sensing,2003,7(5):420-427,436.(in Chinese with English abstract)
[2]曹影,胡文庆,颜培东.基于温度植被干旱指数(TVDI)的云南干旱遥感监测[J].工程勘察,2016,44(1):69-73.CAO Y,HU W Q,YAN P D.Remote sensing monitoring of the drought based on temperature vegetation dryness index in Yunnan province[J].Geotechnical Investigation&Surveying,2016,44(1):69-73.(in Chinese with English abstract)
[3]鲍艳松,严婧,闵锦忠,等.基于温度植被干旱指数的江苏淮北地区农业旱情监测[J].农业工程学报,2014,30(7):163-172.BAO Y S,YAN J,MIN J Z,et al.Agricultural drought monitoring in north Jiangsu by using temperature vegetation dryness index[J].Transactions of the Chinese Society of Agricultural Engineering,2014,30(7):163-172.(in Chinese with English abstract)
[4]吕娟,高辉,孙洪泉.21世纪以来我国干旱灾害特点及成因分析[J].中国防汛抗旱,2011,21(5):38-43.LU J,GAO H,SUN H Q.The characteristics and cause analysis of drought disasters in China since the 21st century[J].China Flood&Drought Management,2011,21(5):38-43.(in Chinese)
[5]陈阳,范建容,郭芬芬,等.条件植被温度指数在云南干旱监测中的应用[J].农业工程学报,2011,27(5):231-236,395.CHEN Y,FAN J R,GUO F F,et al.Application of the vegetation temperature condition index to drought monitoring in Yunnan Province[J].Transactions of the Chinese Society of Agricultural Engineering,2011,27(5):231-236,395.(in Chinese with English abstract)
[6]刘宪锋,朱秀芳,潘耀忠,等.农业干旱监测研究进展与展望[J].地理学报,2015,70(11):1835-1848.LIU X F,ZHU X F,PAN Y Z,et al.Agricultural drought monitor:Progress,challenges and prospect[J].Acta Geographica Sinica,2015,70(11):1835-1848.(in Chinese with English abstract)
[7]张喆,丁建丽,李鑫,等.TVDI用于干旱区农业旱情监测的适宜性[J].中国沙漠,2015,35(1):220-227.ZHANG Z,DING J L,LI X,et al.Suitability of TVDI used to monitor agricultural drought in arid area[J].Journal of Desert Research,2015,35(1):220-227.(in Chinese with English abstract)
[8]刘立文,张吴平,段永红,等.TVDI模型的农业旱情时空变化遥感应用[J].生态学报,2014,34(13):3704-3711.LIU L W,ZHANG W P,DUAN Y H,et al.Terrain corrected TVDI for agricultural drought monitoring using MODIS data[J].Acta Ecologica Sinica,2014,34(13):3704-3711.(in Chinese with English abstract)
[9]鲍艳松,刘利,孔令寅,等.基于ASAR的冬小麦不同生育期土壤湿度反演[J].农业工程学报,2010,26(9):224-232.BAO Y S,LIU L,KONG L Y,et al.Soil moisture estimation at various growth stages of winter wheat based on ASAR data[J].Transactions of the Chinese Society of Agricultural Engineering,2010,26(9):224-232.(in Chinese)
[10]薄燕飞,白建军,刘永林.基于TVDI及气象干旱指数的河北省春旱时空变化特征[J].兰州大学学报(自然科学版),2016,52(2):188-195.BO Y F,BAI J J,LIU Y L.The spatial-temporal variations of spring drought in Hebei Province based on TVDI and meteorological drought index[J].Journal of Lanzhou University(Natural Sciences),2016,52(2):188-195.(in Chinese with English abstract)
[11]赵广敏,李晓燕,李宝毅.基于地表温度和植被指数特征空间的农业干旱遥感监测方法研究综述[J].水土保持研究,2010,17(5):245-250.ZHAO G M,LI X Y,LI B Y.An overview on agricultural drought montoring methods based on land surface temperature and vegetation index feature space[J].Research of Soil and Water Conservation,2010,17(5):245-250.(in Chinese with English abstract)
[12]张顺谦,卿清涛,侯美亭,等.基于温度植被干旱指数的四川伏旱遥感监测与影响评估[J].农业工程学报,2007,23(9):141-146.ZHANG S Q,QING Q T,HOU M T,et al.Remote sensing and impact estimation for Sichuan hot-drought based on temperature vegetation dryness index[J].Transactions of the Chinese Society of Agricultural Engineering,2007,23(9):141-146.(in Chinese with English abstract)
[13]赵丽花,杜培军,逄云峰,等.基于温度植被旱情指数的徐州市郊干旱遥感监测[J].水土保持通报,2010,30(4):110-114,247.ZHAO L H,DU P J,PANG Y F,et al.Monitoring drought using temperature/vegetation drought index based on remote sensing images[J].Bulletin of Soil and Water Conservation,2010,30(4):110-114,247.(in Chinese with English abstract)
[14]张宁宁,迟道才,袁吉.朝阳地区干旱特征分析及抗旱对策研究[J].中国农村水利水电,2006(9):61-63,66.ZHANG N N,CHI D C,YUAN J.Analysis of the characters and countermeasures against drought in Chaoyang prefecture[J].China Rural Water and Hydropower,2006(9):61-63,66.(in Chinese with English abstract)
[15]郭宗凯.辽宁省朝阳地区干旱发生规律的硏究[D].沈阳:沈阳农业大学学报,2016.GUO Z K.Study on the occurrence of drought about arid region of Chaoyang city of Liaoning province[D].Shenyang:Shenyang Agricultural University,2016.(in Chinese with English abstract)
[16]季国华,胡德勇,王兴玲,等.基于Landsat 8数据和温度-植被指数的干旱监测[J].自然灾害学报,2016,25(2):43-52.JI G H,HU D Y,WANG X L,et al.Drought monitoring based on Landsat 8 data and temperature/vegetation index[J].Journal of Natural Disasters,2016,25(2):43-52.(in Chinese with English abstract)
[17]申健,常庆瑞,李粉玲,等.基于时序NDVI的关中地区冬小麦种植信息遥感提取[J].农业机械学报,2017,48(3):215-220,260.SHEN J,CHANG Q R,LI F L,et al.Extraction of winter wheat information based on time-series NDVI in Guanzhong area[J].Transactions of the Chinese Society for Agricultural Machinery,2017,48(3):215-220,260.(in Chinese with English abstract)
[18]吴志刚,江滔,樊艳磊,等.基于Landsat8数据的地表温度反演及分析研究:以武汉市为例[J].工程地球物理学报,2016,13(1):135-142.WU Z G,JIANG T,FAN Y L,et al.Land surface temperature retrieval and result analysis based on Landsat8 data in Wuhan city[J].Chinese Journal of Engineering Geophysics,2016,13(1):135-142.(in Chinese with English abstract)
[19]SANDHOLT I,RASMUSSEN K,ANDERSEN J.A simple interpretation of the surface temperature/vegetation index space for assessment of surface moisture status[J].Remote Sensing of Environment,2002,79(2):213-224.
[20]PRICE J C.Using spatial context in satellite data to infer regional scale evapotranspiration[J].IEEE Transactions on Geoseience and Remote Sensing,1990,28(5):940-948.
[21]CARLSON T N,GILLIES R R,SCHMUGGE T J.An interpretation of methodologies for indirect measurement of soil water content[J].Agricultural and Forest Meteorology,1995,77(3/4):191-205.
[22]齐述华,王长耀,牛铮.利用温度植被旱情指数(TVDI)进行全国旱情监测研究[J].遥感学报,2003,7(5):420-427,436.QI S H,WANG C Y,NIU Z.Evaluating soil moisture status in china using the temperature/vegetation dryness index(TVDI)[J].Journal of Remote Sensing,2003,7(5):420-427,436.(in Chinese with English abstract)