2000—2015年黑河流域中上游NDVI时空变化及其与气候的关系
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摘要
选择西北第二大内陆河黑河流域中上游为研究区,以2000—2015年逐月NDVI数据、月均温和月降水数据、DEM数据和基础地理信息数据为数据源,采用RS,GIS和数理统计分析等方法,从区域尺度和像元尺度揭示区域NDVI时空变化格局及其与气候的关系。结果显示:1)2000—2015年,黑河流域中上游NDVI总体上呈现增长趋势,其中夏季的增长速率最大,明显高于春季和秋季;NDVI快速增长区主要位于中游地区黑河干流两侧的绿洲地带;NDVI显著下降区位于张掖市市辖区、酒泉市市辖区以及其他县城所在地;2)夏季NDVI与降水相关性较高,而春、秋季NDVI与气温相关性较高;夏季NDVI与夏季降水的显著相关性主要体现在远离黑河干流的大片低覆被草地、戈壁以及荒漠,而邻近黑河的人工绿洲地带NDVI与降水没有显著相关性;3)NDVI响应降水的时滞效应较明显,夏季NDVI对降水的响应普遍存在1个月的时间滞后,最长能滞后2个月。研究结果可以为区域植被恢复和生态系统管理提供参考。
The upper and middle reaches of Heihe River Basin(HRB), which is the second largest inland river basin in the arid area of the northern China, was chosen as study area. Based on monthly normalized difference vegetation index(NDVI) derived from MODIS sensor, monthly temperature and precipitation data observed by meteorological stations, DEM and basic geographical information, the authors analyzed the spatio-temporal change of NDVI and its relationship with climate from 2000 to 2015 using empirical approach. It was found that NDVI in the upper and middle reaches of Heihe River basin increased generally; the increasing rate of NDVI in summer was higher than that in autumn and spring; the area with rapid increasing rate of NDVI was mainly located in the oasis along the Heihe river; the significant decrease of NDVI occurred in the urban areas of Zhangye, Jiuquan and other cities. It is concluded that the correlation of NDVI with precipitation in summer was higher than that with temperature, whereas NDVI in spring and autumn exhibited higher correlation with temperature. NDVI in the grassland, gobi and desert far away from the main river had significant correlation with precipitation in summer, but NDVI in oasis adjacent to the main river did not show the significant correlation with precipitation. The memory effects was also recognized when NDVI responding to precipitation. The general time lag of NDVI variation in summer responding to precipitation was about a month, but it could extend to 2 months. The results are proposed to provide references for regional vegetation restoration and ecosystem management.
The upper and middle reaches of Heihe River Basin(HRB), which is the second largest inland river basin in the arid area of the northern China, was chosen as study area. Based on monthly normalized difference vegetation index(NDVI) derived from MODIS sensor, monthly temperature and precipitation data observed by meteorological stations, DEM and basic geographical information, the authors analyzed the spatio-temporal change of NDVI and its relationship with climate from 2000 to 2015 using empirical approach. It was found that NDVI in the upper and middle reaches of Heihe River basin increased generally; the increasing rate of NDVI in summer was higher than that in autumn and spring; the area with rapid increasing rate of NDVI was mainly located in the oasis along the Heihe river; the significant decrease of NDVI occurred in the urban areas of Zhangye, Jiuquan and other cities. It is concluded that the correlation of NDVI with precipitation in summer was higher than that with temperature, whereas NDVI in spring and autumn exhibited higher correlation with temperature. NDVI in the grassland, gobi and desert far away from the main river had significant correlation with precipitation in summer, but NDVI in oasis adjacent to the main river did not show the significant correlation with precipitation. The memory effects was also recognized when NDVI responding to precipitation. The general time lag of NDVI variation in summer responding to precipitation was about a month, but it could extend to 2 months. The results are proposed to provide references for regional vegetation restoration and ecosystem management.
引文
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[2]Peng J,Liu Z H,Liu Y H,et al.Trend analysis of vegetation dynamics in Qinghai-Tibet Plateau using Hurst Exponent.Ecological Indicators,2012,14(1):28-39
[3]张远东,张笑鹤,刘世荣.西南地区不同植被类型归一化植被指数与气候因子的相关分析.应用生态学报,2011,22(2):323-330
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[5]Sun H Y,Wang C Y,Niu Z,et al.Analysis of the vegetation cover change and the relationship between NDVI and environmental factors by using NOAAtime series data.Journal of Remote Sensing,1998,2(3):204-210
[6]Nemani R R,Keeling C D,Hashimot H,et al.Climate-driven increased in global terrestrial net primary production from 1982 to 1999.Science,2003,300:1560-1563
[7]Peng S S,Chen A P,Xu L,et al.Recent change of vegetation growth trend in China.Environmental Research Letters,2011,6(4):4027-4039
[8]何月,樊高峰,张小伟,等.浙江省植被NDVI动态及其对气候的响应.生态学报,2012,32(14):4352-4362
[9]Pettorelli N,Vik J O,Mysterud A,et a1.Using the satellite-derived NDVI to assess ecological responses to environmental change.Trends in Ecology&Evolution,2005,20(9):503-510
[10]Braswell B H,Schimel D S,Linder E,et a1.The response of global terrestrial ecosystems to internal temperature variability.Science,1997,238:870-872
[11]王正兴,刘闯,Huete A R.植被指数研究进展:从AVHRR-NDVI到MODIS-EVI.生态学报,2003,23(5):980-987
[12]Major D J,Baret F,Guyot G.A ratio vegetation index adjusted for soil brightness.International Journal of Remote Sensing,1990,11(5):727-740
[13]Paruelo J M,Lauenroth W K.Regional patterns of normalized difference vegetation index in North American shrub lands and grasslands.Ecology,1995,76(6):1888-1898
[14]Piao S L,Fang,J Y,Zhou,L M,et al.Interannual variations of monthly and seasonal NDVI in China from 1982 to 1999.Journal of Geophysical Research,2003,108(D14):4401
[15]Weiss J L,Gutzler D S,Coonrod J E A,et al.Seasonal and inter-annual relationships between vegetation and climate in central New Mexico,USA.Journal of Arid Environments,2004,57(4):507-534
[16]Jiang J J,Chen S Z,Cao S X,et al.Leaf area index retrieval based on canopy reflectance and vegetation index in Eastern China.Journal of Geographical Sciences,2005,15(2):247-254
[17]李红军,郑力,雷玉平,等.基于EOS/MODIS数据的NDVI与EVI比较研究.地理科学进展,2007,26(1):26-32
[18]李晓兵,史培军.中国典型植被类型NDVI动态变化与气温、降水变化的敏感性分析.植物生态学报,2000,24(3):379-382
[19]刘少华,严登华,史晓亮,等.中国植被NDVI与气候因子的年际变化及相关性研究.干旱区地理,2014,37(3):480-489
[20]姚镇海,邱新法,施国萍,等.我国近10年月平均NDVI空间分布特征分析.国土资源遥感,2017,29(2):181-186
[21]白建军,白江涛,王磊.2000-2010年陕北地区植被NDVI时空变化及其与区域气候的关系.地理科学,2014,34(7):882-888
[22]杜加强,贾尔恒·阿哈提,赵晨曦,等.1982-2012年新疆植被NDVI的动态变化及其对气候变化和人类活动的响应.应用生态学报,2015,26(12):3567-3578
[23]付新峰,杨胜天,刘昌明.雅鲁藏布江流域NDVI变化与主要气候因子的关系.地理研究,2007,26(1):60-65
[24]肖洪浪,程国栋,李彩芝,等.黑河流域生态-水文观测试验与水-生态集成管理研究.地球科学进展,2008,23(7):666-670
[25]王根绪,程国栋,沈永平,等.近50年来河西走廊区域生态环境变化特征与综合防治对策.自然资源学报,2002,17(1):78-86
[26]蒙吉军,吴秀芹,李正国,等.黑河流域LUCC(1988-2000)的生态环境效应研究.水土保持研究,2005,12(4):17-21
[27]周伟,王倩,章超斌,等.黑河中上游草地NDVI时空变化规律及其对气候因子的响应分析.草业学报,2013,22(1):138-147
[28]彭小清,张廷军,钟歆玥,等.祁连山黑河流域NDVI时空变化及其对气候因子的响应.兰州大学学报(自然科学版),2013,49(2):192-202
[29]Cong N,Wang T,Nan H J,et al.Changes in satellite derived spring vegetation green up date and its linkage to climate in China from 1982 to 2010:a multimethod analysis.Global Change Biology,2013,19(3):881-891
[30]Reichstein M,Ciais P,Papale D,et al.Reduction of ecosystem productivity and respiration during the European summer 2003 climate anomaly:a joint flux tower,remote sensing and modelling analysis.Global Change Biology,2007,13(3):634-651
[31]鲍雅静,宋国宝,李政海,等.纵向岭谷区植被覆盖的空间分异及其对气候的时滞效应.科学通报,2007,52(增刊2):42-49
[32]崔林丽,史军,杨引明,等.中国东部植被NDVI对气温和降水的旬响应特征.地理学报,2009,64(7):850-860
[33]白淑英,王莉,史建桥.长江流域NDVI对气候变化响应的时滞效应.中国农业气象,2012,33(4):579-586
[34]蓝永超,丁永建,沈永平,等.河西内陆河流域出山径流对气候转型的响应.冰川冻土,2003,25(2):188-192
[35]王录仓,张晓玉.黑河流域近期气候变化对水资源的影响分析.干旱区资源与环境,2010,24(4):60-65
[36]Jia L,Shang H,Hu G,et al.Phenological response of vegetation to upstream river flow in the Heihe River basin by time series analysis of MODIS data.Hydrology&Earth System Sciences,2011,15(3):1047-1064
[37]Shen Q,Gao G Y,Fu B J,et al.Responses of shelterbelt stand transpiration to drought and groundwater variations in an arid inland river basin of Northwest China.Journal of Hydrology,2015,531:738-748
[2]Peng J,Liu Z H,Liu Y H,et al.Trend analysis of vegetation dynamics in Qinghai-Tibet Plateau using Hurst Exponent.Ecological Indicators,2012,14(1):28-39
[3]张远东,张笑鹤,刘世荣.西南地区不同植被类型归一化植被指数与气候因子的相关分析.应用生态学报,2011,22(2):323-330
[4]Parmesan C,Yohe G.A globally coherent fingerprint of climate change impacts across natural systems.Nature,2003,421:37-42
[5]Sun H Y,Wang C Y,Niu Z,et al.Analysis of the vegetation cover change and the relationship between NDVI and environmental factors by using NOAAtime series data.Journal of Remote Sensing,1998,2(3):204-210
[6]Nemani R R,Keeling C D,Hashimot H,et al.Climate-driven increased in global terrestrial net primary production from 1982 to 1999.Science,2003,300:1560-1563
[7]Peng S S,Chen A P,Xu L,et al.Recent change of vegetation growth trend in China.Environmental Research Letters,2011,6(4):4027-4039
[8]何月,樊高峰,张小伟,等.浙江省植被NDVI动态及其对气候的响应.生态学报,2012,32(14):4352-4362
[9]Pettorelli N,Vik J O,Mysterud A,et a1.Using the satellite-derived NDVI to assess ecological responses to environmental change.Trends in Ecology&Evolution,2005,20(9):503-510
[10]Braswell B H,Schimel D S,Linder E,et a1.The response of global terrestrial ecosystems to internal temperature variability.Science,1997,238:870-872
[11]王正兴,刘闯,Huete A R.植被指数研究进展:从AVHRR-NDVI到MODIS-EVI.生态学报,2003,23(5):980-987
[12]Major D J,Baret F,Guyot G.A ratio vegetation index adjusted for soil brightness.International Journal of Remote Sensing,1990,11(5):727-740
[13]Paruelo J M,Lauenroth W K.Regional patterns of normalized difference vegetation index in North American shrub lands and grasslands.Ecology,1995,76(6):1888-1898
[14]Piao S L,Fang,J Y,Zhou,L M,et al.Interannual variations of monthly and seasonal NDVI in China from 1982 to 1999.Journal of Geophysical Research,2003,108(D14):4401
[15]Weiss J L,Gutzler D S,Coonrod J E A,et al.Seasonal and inter-annual relationships between vegetation and climate in central New Mexico,USA.Journal of Arid Environments,2004,57(4):507-534
[16]Jiang J J,Chen S Z,Cao S X,et al.Leaf area index retrieval based on canopy reflectance and vegetation index in Eastern China.Journal of Geographical Sciences,2005,15(2):247-254
[17]李红军,郑力,雷玉平,等.基于EOS/MODIS数据的NDVI与EVI比较研究.地理科学进展,2007,26(1):26-32
[18]李晓兵,史培军.中国典型植被类型NDVI动态变化与气温、降水变化的敏感性分析.植物生态学报,2000,24(3):379-382
[19]刘少华,严登华,史晓亮,等.中国植被NDVI与气候因子的年际变化及相关性研究.干旱区地理,2014,37(3):480-489
[20]姚镇海,邱新法,施国萍,等.我国近10年月平均NDVI空间分布特征分析.国土资源遥感,2017,29(2):181-186
[21]白建军,白江涛,王磊.2000-2010年陕北地区植被NDVI时空变化及其与区域气候的关系.地理科学,2014,34(7):882-888
[22]杜加强,贾尔恒·阿哈提,赵晨曦,等.1982-2012年新疆植被NDVI的动态变化及其对气候变化和人类活动的响应.应用生态学报,2015,26(12):3567-3578
[23]付新峰,杨胜天,刘昌明.雅鲁藏布江流域NDVI变化与主要气候因子的关系.地理研究,2007,26(1):60-65
[24]肖洪浪,程国栋,李彩芝,等.黑河流域生态-水文观测试验与水-生态集成管理研究.地球科学进展,2008,23(7):666-670
[25]王根绪,程国栋,沈永平,等.近50年来河西走廊区域生态环境变化特征与综合防治对策.自然资源学报,2002,17(1):78-86
[26]蒙吉军,吴秀芹,李正国,等.黑河流域LUCC(1988-2000)的生态环境效应研究.水土保持研究,2005,12(4):17-21
[27]周伟,王倩,章超斌,等.黑河中上游草地NDVI时空变化规律及其对气候因子的响应分析.草业学报,2013,22(1):138-147
[28]彭小清,张廷军,钟歆玥,等.祁连山黑河流域NDVI时空变化及其对气候因子的响应.兰州大学学报(自然科学版),2013,49(2):192-202
[29]Cong N,Wang T,Nan H J,et al.Changes in satellite derived spring vegetation green up date and its linkage to climate in China from 1982 to 2010:a multimethod analysis.Global Change Biology,2013,19(3):881-891
[30]Reichstein M,Ciais P,Papale D,et al.Reduction of ecosystem productivity and respiration during the European summer 2003 climate anomaly:a joint flux tower,remote sensing and modelling analysis.Global Change Biology,2007,13(3):634-651
[31]鲍雅静,宋国宝,李政海,等.纵向岭谷区植被覆盖的空间分异及其对气候的时滞效应.科学通报,2007,52(增刊2):42-49
[32]崔林丽,史军,杨引明,等.中国东部植被NDVI对气温和降水的旬响应特征.地理学报,2009,64(7):850-860
[33]白淑英,王莉,史建桥.长江流域NDVI对气候变化响应的时滞效应.中国农业气象,2012,33(4):579-586
[34]蓝永超,丁永建,沈永平,等.河西内陆河流域出山径流对气候转型的响应.冰川冻土,2003,25(2):188-192
[35]王录仓,张晓玉.黑河流域近期气候变化对水资源的影响分析.干旱区资源与环境,2010,24(4):60-65
[36]Jia L,Shang H,Hu G,et al.Phenological response of vegetation to upstream river flow in the Heihe River basin by time series analysis of MODIS data.Hydrology&Earth System Sciences,2011,15(3):1047-1064
[37]Shen Q,Gao G Y,Fu B J,et al.Responses of shelterbelt stand transpiration to drought and groundwater variations in an arid inland river basin of Northwest China.Journal of Hydrology,2015,531:738-748
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