2000年以来岷江上游地区MODIS/NDVI动态变化
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摘要
运用遥感和地理信息系统手段,基于MODIS遥感数据集,研究了2000年以来岷江上游地区归一化植被指数的动态变化特征,初步揭示环境变化及人类活动影响下研究区NDVI的时空变化规律。结果表明:(1)2000年以来岷江上游年NDVI总体呈波动上升趋势,由2000年的0.78提升至2015年的0.81,年平均增长率为0.0013。岷江上游地区NDVI最低值出现在1月份下半月,最大值出现在7月份中下旬。(2)在空间上,研究区内NDVI以稳定状态为主;轻度增大、轻度减小、明显减小类型分别占总面积的2.03%、1.97%、0.05%。(3)2000—2015年间,理县年NDVI均低于其他5县市;松潘县年NDVI值均低于黑水县;除2002、2005和2006年,茂县年NDVI值均高于其他5县市。6县市均是NDVI稳定类型所占的面积比例最高,明显增大和明显减小类型所占的比例均较低;对于轻度减小类型,都江堰市该类型面积所占比例最高,汶川县次之。
NDVI dynamics in the upper Min River since 2000 was analyzed based on MODIS remote sensing dataset by using RS and GIS tools,and spatial-temporal variation characteristic of NDVI influenced by environmental change and human activities was revealed. The results indicated that:(1) NDVI of the upper Min River showed a fluctuating growth trend,from 0. 78 in 2000 to 0. 81 in 2015,and its average annual growth rate was 0. 0013.Lowest NDVI value appeared in the second half of January,and maximum value appeared in the mid to late July.(2) In the past 16 years,stable status was the main NDVI change type in the upper Min River; Slight increase type,slight reduction type,and obvious reduction type accounted for 2. 03%,1. 97%,and 0. 05% of the total area,respectively.(3) During 2000—2015,NDVI values of Li County were lower than that of the other five counties; NDVI values of Songpan were lower than that of Heishui; and NDVI values of Mao County were higher than that of the other five counties except the year of 2002,2005 and 2006. Dominant type was stable in each county; and the area percentages of obvious increase and obvious reduction type were both lower. For slight reduction type,the highest percentage of area was in Dujiangyan,followed by Wenchuan County.
NDVI dynamics in the upper Min River since 2000 was analyzed based on MODIS remote sensing dataset by using RS and GIS tools,and spatial-temporal variation characteristic of NDVI influenced by environmental change and human activities was revealed. The results indicated that:(1) NDVI of the upper Min River showed a fluctuating growth trend,from 0. 78 in 2000 to 0. 81 in 2015,and its average annual growth rate was 0. 0013.Lowest NDVI value appeared in the second half of January,and maximum value appeared in the mid to late July.(2) In the past 16 years,stable status was the main NDVI change type in the upper Min River; Slight increase type,slight reduction type,and obvious reduction type accounted for 2. 03%,1. 97%,and 0. 05% of the total area,respectively.(3) During 2000—2015,NDVI values of Li County were lower than that of the other five counties; NDVI values of Songpan were lower than that of Heishui; and NDVI values of Mao County were higher than that of the other five counties except the year of 2002,2005 and 2006. Dominant type was stable in each county; and the area percentages of obvious increase and obvious reduction type were both lower. For slight reduction type,the highest percentage of area was in Dujiangyan,followed by Wenchuan County.
引文
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[21]侯光雷,张洪岩,郭聃,等.长白山区植被生长季NDVI时空变化及其对气候因子敏感性[J].地理科学进展,2012,31(3):285-292[HOU Guanglei,ZHANG Hongyan,GUO Dan,et al.Spatial-temporal variation of NDVI in the growing season and its sensitivity to climatic factors in Changbai Mountains[J].Progress in Geography,2012,31(3):285-292]
[22]成方妍,刘世梁,尹艺洁,等.基于MODIS NDVI的广西沿海植被动态及其主要驱动因素[J].生态学报,2017,37(3):788-797[CHENG Fangyan,LIU Shiliang,YIN Yijie,et al.The dynamics and main driving factors of coastal vegetation in Guangxi based on MODIS NDVI[J].Acta Ecologica Sinica,2017,37(3):788-797]
[23]孙存举,雷建华,唐果山,等.基于SPOT NDVI影像的阿坝州植被变化遥感监测[J].四川林业科技,2014,35(6):56-59[SUN Cunju,LEI Jianhua,TANG Guoshan,et al.A study of spatio-temporal variation of vegetation by using SPOT NDVI images in Aba,China[J].Journal of Sichuan Forestry Science and Technology,2014,35(6):56-59]
[24]严晓瑜.不同时间尺度若尔盖湿地植被变化及其与气候的关系[D].北京:中国气象科学研究院,2008[YAN Xiaoyu.The variation of NDVI and its relationship with climate factors in Ruoergai wetland at different time scales[D].Beijing:Chinese Academy of Meteorological Sciences,2008]
[25]严晓瑜,何勇,董文杰.1982—2003年若尔盖湿地NDVI变化及其与气候的关系[C]//中国气象学会.中国气象学会2007年年会气候学分会场论文集.广州:中国气象学会,2007:266-275[YAN Xiaoyu,HE Yong,DONG Wenjie.Variation of NDVI and its relationship with climate in Ruoergai marsh from1982 to 2003[C]//Chinese Meteorological Society.2007 annual conference proceedings of climate.Guangzhou:Chinese Meteorological Society,2007:266-275]
[26]张文江,宁吉才,宋克超,等.岷江上游植被覆被对水热条件的响应[J].山地学报,2013,31(3):280-286[ZHANG Wenjiang,NING Jicai,SONG Kechao,et al.The response of vegetation cover to the variation of heat and water conditions in Upper Minjiang watershed,China[J].Mountain Research,2013,31(3):280-286]
[27]HUANG F,WANG P,HUANG F,et al.Vegetation change of ecotone in west of Northeast China Plain using time-series remote sensing data[J].Chinese Geographical Science,2010,20(2):167-175
[28]邱海军,曹明明.基于SPOT VEGETATION数据的中国植被覆盖时空变化分析[J].资源科学,2011,33(2):335-340[QIU Haijun,CAO Mingming.Spatial and temporal variations in vegetation cover in China based on SPOT vegetation data[J].Resources Science,2011,33(2):335-340]
[29]杨绍锷,廖雪萍,谭裕模,等.广西近十年植被NDVI变化及其对降水的响应特征分析[J].西南农业学报,2013,26(2):766-771[YANG Shaoe,LIAO Xueping,TAN Yumo,et al.Analysis of Guangxi vegetation NDVI variations and response to precipitation in recent decade[J].Southwest China Journal of Agricultural Sciences,2013,26(2):766-771]
[30]李崇巍,刘丽娟,孙鹏森,等.岷江上游植被格局与环境关系的研究[J].北京师范大学学报(自然科学版),2005,41(4):404-409[LI Chongwei,LIU Lijuan,SUN Pengsen,et al.A study on the relationship between vegetation pattern and environment in the upstream of Minjiang River[J].Journal of Beijing Normal University(Natural Science),2005,41(4):404-409]
[31]郑杰,闾利,冯文兰,等.基于TRMM 3B43数据的川西高原月降水量空间降尺度模拟[J].中国农业气象,2016,37(2):245-254[ZHENG Jie,LV Li,FENG Wenlan,et al.Spatial downscaling simulation of monthly precipitation based on TRMM3B43 data in the western Sichuan Plateau[J].Chinese Journal of Agrometeorology,2016,37(2):245-254]
[2]梁志林,张立燕,曾现灵,等.高光谱遥感城市植被识别方法研究[J].地理空间信息,2017,15(2):72-75[LIANG Zhilin,ZHANG Liyan,ZENG Xianling,et al.Research on identification method of urban vegetation based on hyperspectral imagery[J].Geospatial Information,2017,15(2):72-75]
[3]陈巧,陈永富.Quick Bird遥感数据监测植被覆盖度的研究[J].林业科学研究,2005,18(4):375-380[CHEN Qiao,CHEN Yongfu.A study on estimation of vegetation fraction by using Quick Bird imagery[J].Forest Research,2005,18(4):375-380]
[4]HOSSAIN M S,BUJANG J S,ZAKARIA M H,et al.Application of Landsat images to seagrass areal cover change analysis for Lawas,Terengganu and Kelantan of Malaysia[J].Continental Shelf Research,2015,110:124-148
[5]LI J,LIU Y,CAO M,et al.Space-time characteristics of vegetation cover and distribution:case of the Henan province in China[J].Sustainability,2015,7(9):11967-11979
[6]LEHNERT L W,MEYER H,WANG Y,et al.Retrieval of grassland plant coverage on the Tibetan Plateau based on a multiscale,multi-sensor and multi-method approach[J].Remote Sensing of Environment,2015,164:197-207
[7]LU L,KUENZER C,WANG C,et al.Evaluation of three MODISderived vegetation index time series for dryland vegetation dynamics monitoring[J].Remote Sensing,2015,7(6):7597-7614
[8]杨胜天,刘昌明,孙睿.近20年来黄河流域植被覆盖变化分析[J].地理学报,2002,57(6):679-684[YANG Shengtian,LIU Changming,SUN Rui.The vegetation cover over last 20 years in Yellow River basin[J].Acta Geographica Sinica,2002,57(6):679-684]
[9]朴世龙,方精云.1982—1999年我国陆地植被活动对气候变化响应的季节差异[J].地理学报,2003,58(1):119-125[PIAO Shilong,FANG Jingyun.Seasonal changes in vegetation activity in response to climate changes in China between 1982 and 1999[J].Acta Geographica Sinica,2003,58(1):119-125]
[10]袁丽华,蒋卫国,申文明,等.2000—2010年黄河流域植被覆盖的时空变化[J].生态学报,2013,33(24):7798-7806[YUAN Lihua,JIANG Weiguo,SHEN Wenming,et al.The spatiotemporal variations of vegetation cover in the Yellow River basin from 2000 to 2010[J].Acta Ecologica Sinica,2013,33(24):7798-7806]
[11]HOU X,GAO S,ZHENG N,et al.Extracting grassland vegetation phenology in North China based on cumulative SPOTVEGETATION NDVI data[J].International Journal of Remote Sensing,2014,35(9):3316-3330
[12]XU Y,YANG J,CHEN Y.NDVI-based vegetation responses to climate change in an arid area of China[J].Theoretical&Applied Climatology,2016,126(1-2):213-222
[13]LIU Q,YANG Z,HAN F,et al.NDVI-based vegetation dynamics and their response to recent climate change:a case study in the Tianshan Mountains,China[J].Environmental Earth Sciences,2016,75(16):1189-1203
[14]杨斌,詹金凤,李茂娇.岷江上游流域环境脆弱性评价[J].国土资源遥感,2014,26(4):138-144[YANG Bin,ZHAN Jinfeng,LI Maojiao.Evaluation of environmental vulnerability in the upper reaches of the Minjiang river[J].Remote Sensing for Land&Resources,2014,26(4):138-144]
[15]张诗羽,张毅,王昌全,等.岷江上游流域植被覆盖度及其与地形因子的相关性[J].水土保持通报,2018,38(1):69-75[ZHANG Shiyu,ZHANG Yi,WANG Changquan,et al.Vegetation coverage and its correlation with topographic factors in upstream watershed of Minjiang River[J].Bulletin of Soil and Water Conservation,2018,38(1):69-75]
[16]赵永华,何兴元,胡远满,等.岷江上游土地利用/覆被变化及其驱动力[J].应用生态学报,2006,17(5):862-866[ZHAO Yonghua,HE Xingyuan,HU Yuanman,et al.Land use and land cover changes and driving forces in the upper reach of Minjiang River[J].Chinese Journal of Applied Ecology,2006,17(5):862-866]
[17]张云红,王道杰,江晓波,等.岷江上游土地利用变化及其对生态环境的影响[J].西南大学学报自然科学版,2010,32(3):102-108[ZHANG Yunhong,WANG Daojie,JIANG Xiaobo,et al.Changes in land use in the upper reaches of the Minjiang River and their effects on the local eco-environment[J].Journal of Southwest University(Natural Science Edition),2010,32(3):102-108]
[18]刘洋,李开源,李勇.岷江源头区植被景观变化及驱动因子分析[J].人民长江,2007,38(1):108-110[LIU Yang,LI Kaiyuan,LI Yong.Analysis of vegetation and landscape variation and driving factors of sources area of the Minjiang river[J].Yangtze River,2005,38(1):108-100]
[19]李茂娇,杨斌,詹金凤,等.基于GIS的岷江上游流域土地利用/覆被变化研究[J].测绘工程,2016,25(6):41-45[LI Maojiao,YANG Bin,ZHAN Jinfeng,et al.Research on land use/cover change on the upper of Minjiang River based on GIS[J].Engineering of Surveying and Mapping,2016,25(6):41-45]
[20]张国斌.岷江上游森林碳储量特征及动态分析[D].北京:中国林业科学研究院,2008[ZHANG Guobin.Forest carbon storage dynamics at the upper stream of Minjing River[D].Beijing:Chinese Academy of Forestry,2008]
[21]侯光雷,张洪岩,郭聃,等.长白山区植被生长季NDVI时空变化及其对气候因子敏感性[J].地理科学进展,2012,31(3):285-292[HOU Guanglei,ZHANG Hongyan,GUO Dan,et al.Spatial-temporal variation of NDVI in the growing season and its sensitivity to climatic factors in Changbai Mountains[J].Progress in Geography,2012,31(3):285-292]
[22]成方妍,刘世梁,尹艺洁,等.基于MODIS NDVI的广西沿海植被动态及其主要驱动因素[J].生态学报,2017,37(3):788-797[CHENG Fangyan,LIU Shiliang,YIN Yijie,et al.The dynamics and main driving factors of coastal vegetation in Guangxi based on MODIS NDVI[J].Acta Ecologica Sinica,2017,37(3):788-797]
[23]孙存举,雷建华,唐果山,等.基于SPOT NDVI影像的阿坝州植被变化遥感监测[J].四川林业科技,2014,35(6):56-59[SUN Cunju,LEI Jianhua,TANG Guoshan,et al.A study of spatio-temporal variation of vegetation by using SPOT NDVI images in Aba,China[J].Journal of Sichuan Forestry Science and Technology,2014,35(6):56-59]
[24]严晓瑜.不同时间尺度若尔盖湿地植被变化及其与气候的关系[D].北京:中国气象科学研究院,2008[YAN Xiaoyu.The variation of NDVI and its relationship with climate factors in Ruoergai wetland at different time scales[D].Beijing:Chinese Academy of Meteorological Sciences,2008]
[25]严晓瑜,何勇,董文杰.1982—2003年若尔盖湿地NDVI变化及其与气候的关系[C]//中国气象学会.中国气象学会2007年年会气候学分会场论文集.广州:中国气象学会,2007:266-275[YAN Xiaoyu,HE Yong,DONG Wenjie.Variation of NDVI and its relationship with climate in Ruoergai marsh from1982 to 2003[C]//Chinese Meteorological Society.2007 annual conference proceedings of climate.Guangzhou:Chinese Meteorological Society,2007:266-275]
[26]张文江,宁吉才,宋克超,等.岷江上游植被覆被对水热条件的响应[J].山地学报,2013,31(3):280-286[ZHANG Wenjiang,NING Jicai,SONG Kechao,et al.The response of vegetation cover to the variation of heat and water conditions in Upper Minjiang watershed,China[J].Mountain Research,2013,31(3):280-286]
[27]HUANG F,WANG P,HUANG F,et al.Vegetation change of ecotone in west of Northeast China Plain using time-series remote sensing data[J].Chinese Geographical Science,2010,20(2):167-175
[28]邱海军,曹明明.基于SPOT VEGETATION数据的中国植被覆盖时空变化分析[J].资源科学,2011,33(2):335-340[QIU Haijun,CAO Mingming.Spatial and temporal variations in vegetation cover in China based on SPOT vegetation data[J].Resources Science,2011,33(2):335-340]
[29]杨绍锷,廖雪萍,谭裕模,等.广西近十年植被NDVI变化及其对降水的响应特征分析[J].西南农业学报,2013,26(2):766-771[YANG Shaoe,LIAO Xueping,TAN Yumo,et al.Analysis of Guangxi vegetation NDVI variations and response to precipitation in recent decade[J].Southwest China Journal of Agricultural Sciences,2013,26(2):766-771]
[30]李崇巍,刘丽娟,孙鹏森,等.岷江上游植被格局与环境关系的研究[J].北京师范大学学报(自然科学版),2005,41(4):404-409[LI Chongwei,LIU Lijuan,SUN Pengsen,et al.A study on the relationship between vegetation pattern and environment in the upstream of Minjiang River[J].Journal of Beijing Normal University(Natural Science),2005,41(4):404-409]
[31]郑杰,闾利,冯文兰,等.基于TRMM 3B43数据的川西高原月降水量空间降尺度模拟[J].中国农业气象,2016,37(2):245-254[ZHENG Jie,LV Li,FENG Wenlan,et al.Spatial downscaling simulation of monthly precipitation based on TRMM3B43 data in the western Sichuan Plateau[J].Chinese Journal of Agrometeorology,2016,37(2):245-254]