基于MODIS数据的安徽省植被水分利用效率时空变化及影响因素
|
摘要
水分利用效率是衡量生态系统碳水循环耦合程度的重要指标。基于MODIS数据、土地覆盖类型数据和气象数据,估算安徽省植被水分利用效率(WUE),采用趋势分析法和相关分析法对安徽省2000～2014年植被WUE的时空格局、变化趋势及影响因素进行研究。研究表明:(1)不同植被类型的WUE年均值差异明显,常绿阔叶林和常绿针叶林的WUE均值较高,分别达到1.66和1.69 gC·mm~(-1)·m~(-2),而耕地的年均WUE最低,各植被类型的年均WUE按照"常绿针叶林>常绿阔叶林>灌木>草地>落叶阔叶林>针阔混交林>耕地"的顺序递减。植被年均WUE具有较强的空间分异性规律,整体上呈现南北高中间低的趋势,植被WUE的高值区主要分布在大别山区和皖南山区,分布范围与常绿针叶林、常绿阔叶林的分布范围基本一致。(2)安徽省2000～2014年植被WUE年内变化呈现出"增加-减小-增加-减小"的M状"双峰型"趋势,具有明显的季节差异,呈现出春季>秋季>夏季>冬季的特征,各季节植被WUE的均值分别占植被WUE的32.58%、24.91%、29.27%、13.24%。(3)安徽省植被WUE动态变化受到降水影响显著的区域占比3.88%;气温显著影响的区域占比2.19%;降水显著影响的地区主要分布在林地范围内,温度显著影响的地区则位于耕地范围内,降水和气温综合显著影响所占面积最小,为0.11%;而植被WUE受气温和降水影响均不显著占比为93.82%;整体上,安徽省大部分地区的植被WUE变化主要受非气候因素影响。
Water use efficiency(WUE) is an important index to measure the coupling degree of the carbon and water cycles. Based on MODIS data, land cover type data and meteorological data, the vegetation water use efficiency WUE of Anhui Province was estimated. The temporal and spatial patterns, changing trends and influencing factors of vegetation WUE in Anhui Province from 2000 to 2014 were explored by trend analysis and correlation analysis. The results showed that 1) Annual WUE of different vegetation types showed significant differences and average WUE of evergreen broad-leaved forest and evergreen coniferous forest was higher, which reached 1.66 gC·mm~(-1)·m~(-2) and 1.69 gC·mm~(-1)·m~(-2) respectively, while the annual average WUE of cultivated land was the lowest. The annual WUE of each vegetation type decreased following the order of that: evergreen coniferous forest>evergreen broad-leaved forest>shrub, sparse forest>grassland>deciduous broad-leaved forest>coniferous broad-leaved mixed forest>cultivated land. Annual average WUE of vegetation had a strong spatial variability in Anhui Province, where it was higher in the north and south of the province but lower in the middle part. The high value area of vegetation WUE was mainly distributed in Dabie mountain area and southern mountainous area in Anhui Province, and the distribution range was basically consistent with the distribution range of evergreen coniferous forest and evergreen broad-leaved forest. 2) Between 2000 and 2014, the variation of vegetation WUE showed an M-shaped "double-peak" trend of "increase-decrease-increase-decrease" with obviously seasonal variation, displayed the sequence of spring>autumn>summer>winter. Besides, the average WUE of vegetation in each season accounted for 32.58%, 24.91%, 29.27% and 13.24% of the total vegetation WUE respectively. 3) The dynamic change of vegetation WUE in Anhui province resulting from non-climate factors made up 93.82% of the total area of vegetation in the province, followed by precipitation factor(3.88%) and temperature factor(2.19%), while the combination of precipitation and temperature had the smallest impact on WUE(0.11%). Besides, the temperature significantly affects the area within the cultivated land, while the precipitation significantly affects the area within the forrest land mainly. Due to the influence of human, non-climate factors had a greater impact on vegetation WUE changes.
Water use efficiency(WUE) is an important index to measure the coupling degree of the carbon and water cycles. Based on MODIS data, land cover type data and meteorological data, the vegetation water use efficiency WUE of Anhui Province was estimated. The temporal and spatial patterns, changing trends and influencing factors of vegetation WUE in Anhui Province from 2000 to 2014 were explored by trend analysis and correlation analysis. The results showed that 1) Annual WUE of different vegetation types showed significant differences and average WUE of evergreen broad-leaved forest and evergreen coniferous forest was higher, which reached 1.66 gC·mm~(-1)·m~(-2) and 1.69 gC·mm~(-1)·m~(-2) respectively, while the annual average WUE of cultivated land was the lowest. The annual WUE of each vegetation type decreased following the order of that: evergreen coniferous forest>evergreen broad-leaved forest>shrub, sparse forest>grassland>deciduous broad-leaved forest>coniferous broad-leaved mixed forest>cultivated land. Annual average WUE of vegetation had a strong spatial variability in Anhui Province, where it was higher in the north and south of the province but lower in the middle part. The high value area of vegetation WUE was mainly distributed in Dabie mountain area and southern mountainous area in Anhui Province, and the distribution range was basically consistent with the distribution range of evergreen coniferous forest and evergreen broad-leaved forest. 2) Between 2000 and 2014, the variation of vegetation WUE showed an M-shaped "double-peak" trend of "increase-decrease-increase-decrease" with obviously seasonal variation, displayed the sequence of spring>autumn>summer>winter. Besides, the average WUE of vegetation in each season accounted for 32.58%, 24.91%, 29.27% and 13.24% of the total vegetation WUE respectively. 3) The dynamic change of vegetation WUE in Anhui province resulting from non-climate factors made up 93.82% of the total area of vegetation in the province, followed by precipitation factor(3.88%) and temperature factor(2.19%), while the combination of precipitation and temperature had the smallest impact on WUE(0.11%). Besides, the temperature significantly affects the area within the cultivated land, while the precipitation significantly affects the area within the forrest land mainly. Due to the influence of human, non-climate factors had a greater impact on vegetation WUE changes.
引文
[1] 胡中民,于贵瑞,王秋凤,等.生态系统水分利用效率研究进展[J].生态学报,2009,29(3):1498-1507.HU Z M,YU G R,WANG Q F,et al.Ecosystem level water use efficiency:A review[J].Acta Ecologica Sinica,2009,29(3):1498-1507.
[2] YANG Y H,FANG J Y,FAY P A,et al.Rain use efficiency across a precipitation gradient on the Tibetan Plateau[J].Geophysical Research Letters,2010,37(15):L15702.
[3] HU Z M,YU G R,FU Y L,et al.Effects of vegetation control on ecosystem water use efficiency within and among four grassland ecosystems in China[J].Global Change Biology,2008,14(7):1609-1619.
[4] 张远东,庞瑞,顾峰雪,等.西南高山地区水分利用效率时空动态及其对气候变化的响应[J].生态学报,2016,36(6):1515-1525.ZHANG Y D,PANG R,GU F X,et al.Temporal-spatial variations of WUE and its response to climate change in alpine area of southwestern China[J].Acta Ecologica Sinica,2016,36(6):1515-1525.
[5] MARTIN B,THORSTENSON Y R.Stable carbon isotope composition(δ13C),water use efficiency,and biomass productivity of Lycopersicon esculentum,Lycopersicon pennellii and the F1 hybrid[J].Plant Physiology,1988,88(1):213-217.
[6] KOZLOWSKI T T,KRAMER P J,PALLARDY S G.The Physiological Ecology of Woody Plants[J].Journal of Ecology,1991,80(2):372.
[7] TIAN H Q,CHEN G S,LIU M L,et al.Model estimates of net primary productivity,evapotranspiration,and water use efficiency in the terrestrial ecosystems of the southern United States during 1895-2007[J].Forest Ecology and Management,2010,259(7):1311-1327.
[8] LU X L,ZHUANG Q L.Evaluating evapotranspiration and water-use efficiency of terrestrial ecosystems in the conterminous United States using MODIS and AmeriFlux data[J].Remote Sensing of Environment,2010,114(9):1924-1939.
[9] 张春敏,梁川,龙训建,等.江河源区植被水分利用效率遥感估算及动态变化[J].农业工程学报,2013,29(18):146-155.ZHANG C M,LIANG C,LONG X J,et al.Estimating and dynamic change of vegetation water use efficiency in Yangtze and Yellow River headwater regions[J].Transactions of the Chinese Society of Agricultural Engineering ,2013,29(18):146-155.
[10] 黄小涛,罗格平.新疆草地蒸散与水分利用效率的时空特征[J].植物生态学报,2017,41(5):506-518.HUANG X T,LUO G P.Spatio-temporal characteristics of evapotranspiration and water use efficiency in grasslands of Xinjiang[J].Chinese Journal of Plant Ecology,2017,41(5):506-518.
[11] 刘晓,戚超,闫艺兰,等.不同生态系统水分利用效率指标在黄土高原半干旱草地应用的适宜性评价[J].植物生态学报,2017,41(5):497-505.LIU X,QI C,YAN Y L,et al.Revised algorithm of ecosystem water use efficiency for semi-arid steppe in the Loess Plateau of China[J].Chinese Journal of Plant Ecology,2017,41(5):497-505.
[12] KLEIN T,SHSPINGER I,FIKLER B,et al.Relationships between stomatal regulation,water-use,and water-use efficiency of two coexisting Key mediterranean tree species[J].Forest Ecology and Management,2016,302:34-42.
[13] 张良侠,胡中民,樊江文,等.区域尺度生态系统水分利用效率的时空变异特征研究进展[J].地球科学进展,2014,29(6):691-699.ZHANG L X,HU Z M,FAN J W,et al.Advances in the spatiotemporal dynamics in ecosystem water use efficiency at regional scale[J].Advances in Earth Science,2014,29(6):691-699.
[14] 位贺杰,张艳芳,董孝斌,等.渭河流域植被WUE遥感估算及其时空特征[J].自然资源学报,2016,31(8):1275-1288.WEI H J,ZHANG Y F,DONG X B,et al.Estimating the spatio-temporal characteristic of vegetation water use efficiency over Weihe River Basin[J].Journal of Natural Resources,2016,31(8):1275-1288.
[15] LIU D,YU C L,ZHAO F.Response of the water use efficiency of natural vegetation to drought in Northeast China[J].Journal of Geographical Sciences,2018,28(5):611-628.
[16] ITO A,INATOMI M.Water-use efficiency of the terrestrial biosphere:A model analysis focusing on interactions between the global carbon and water cycles[J].Journal of Hydrometeorology,2012,13:681-694.
[17] TANG X,LI H,DESAI A R,et al.How is water use efficiency of terrestrial ecosystems distributed and changing on Earth?[J].Scientific Reports,2014,4(4):7483-7483.
[18] HUANG M,PIAO S,ZENG Z,et al.Seasonal responses of terrestrial ecosystem water use efficiency to climate change[J].Global Change Biology,2016,22(6):2165-2177.
[19] XUE B L,GUO Q,OTTO A,et al.Global patterns,trends,and drivers of water use efficiency from 2000 to 2013[J].Ecosphere,2015,6(10):174.
[20] TIAN Z,JIAN P,WEI L,et al.Spatial-temporal patterns of water use efficiency and climate controls in China’s Loess Plateau during 2000-2010[J].Science of the Total Environment,2016,565:105-122 .
[21] 刘宪锋,胡宝怡,任志远.黄土高原植被生态系统水分利用效率时空变化及驱动因素[J].中国农业科学,2018,51(2):302-314.LIU X F,HU B Y,REN Z Y.Spatiotemporal variation of water use efficiency and its driving forces on the Loess Plateau during 2000-2014[J].Scientia Agricultura Sinica,2018,51(2):302-314.
[22] 邹杰,丁建丽,杨胜天.近15年中亚及新疆生态系统水分利用效率时空变化分析[J].地理研究,2017,36(9):1742-1754.ZOU J,DING J L,YANG S T.Spatial and temporal variation analysis of ecosystem water use efficiency in Central Asia and Xinjiang in recent 15 years[J].Geographical Research,2017,36(9):1742-1754.
[23] 仇宽彪,成军锋.陕西省植被水分利用效率及与气候因素的关系[J].水土保持研究,2015,22(6):256-260.QIU K B,CHENG J F.Vegetation water use efficiency and its relationship with climate in Shaanxi Province[J].Research of Soil and Water Conservation,2015,22(6):256-260.
[24] 王银,徐兵兵,殷涛,等.基于GIS与RS的安徽省NPP模拟及时空分析[J].安徽农业科学,2014,42(17):5560-5563,5571.WANG Y,XU B B,YIN T,et al.Stimulation of net primary productivity and its spatio-temporal patterns in Anhui Province based on GIS and RS[J].Journal of Anhui Agricultural Sciences,2014,42(17):5560-5563,5571.
[25] 王芳,汪左,黄静,等.安徽省农田水分利用效率时空特征及其与气候因子的关系[J].生态学报,2018,38(17):6268-6279.WANG F,WANG Z,HUANG J,et al.Spatio-temporal distribution characteristics of cropland water use efficiency and its relationship with climate in Anhui Province[J].Acta Ecologica Sinica,38(17):6268-6279.
[26] MU Q Z,HEINSCH F A,ZHAO M S,et al.Development of a global evapotranspiration algorithm based on MODIS and global meteorology data[J].Remote Sensing of Environment,2007,111(4):519-536.
[27] MU Q Z,ZHAO M S,RUNNING S W.Improvements to a MODIS global terrestrial evapotranspiration algorithm[J].Remote Sensing of Environment,2011,115(8):1781-1800.
[28] ZHAO M S,RUNNING S W,NEMANI R R.Sensitivity of Moderate Resolution Imaging Spectroradiometer(MODIS) terrestrial primary production to the accuracy of meteorological reanalyses[J].Journal of Geophysical Research,2006,111(G1):G01002.
[29] RUNNING S W,ZHAO M S.User’s guide daily gpp and annual NPP(MOD17A2/A3) products NASA earth observing system MODIS land algorithm,Version 3.0.South Dakota:Land Processes Distributed Active Archive Center,2015:9-14.
[30] 吴炳方,苑全治,颜长珍,等.21世纪前十年的中国土地覆盖变化[J].第四纪研究,2014,34(4):723-731.WU B F,YUAN Q Z,YAN C Z,et al.Land cover changes of China from 2000 to 2010[J].Quaternary Sciences,2014,34(4):723-731.
[31] 何彬方,冯妍,吴文玉,等.安徽省近十年植被指数时空变化特征[J].生态学杂志,2010,29(10):1912-1918.HE B F,FENG Y,WU W Y,et al.Recent ten years spatio-temporal variation characteristics of vegetation index in Anhui Province[J].Chinese Journal of Ecology,2010,29(10):1912-1918.
[32] 仇宽彪,成军锋,贾宝全.中国中东部农田作物水分利用效率时空分布及影响因子分析[J].农业工程学报,2015,31(11):103-109.QIU K B,CHENG J F,JIA B Q.Spatio-temporal distribution of cropland water use efficiency and influential factors in middle and east of China[J].Transactions of the Chinese Society of Agricultural Engineering,2015,31(11):103-109.
[2] YANG Y H,FANG J Y,FAY P A,et al.Rain use efficiency across a precipitation gradient on the Tibetan Plateau[J].Geophysical Research Letters,2010,37(15):L15702.
[3] HU Z M,YU G R,FU Y L,et al.Effects of vegetation control on ecosystem water use efficiency within and among four grassland ecosystems in China[J].Global Change Biology,2008,14(7):1609-1619.
[4] 张远东,庞瑞,顾峰雪,等.西南高山地区水分利用效率时空动态及其对气候变化的响应[J].生态学报,2016,36(6):1515-1525.ZHANG Y D,PANG R,GU F X,et al.Temporal-spatial variations of WUE and its response to climate change in alpine area of southwestern China[J].Acta Ecologica Sinica,2016,36(6):1515-1525.
[5] MARTIN B,THORSTENSON Y R.Stable carbon isotope composition(δ13C),water use efficiency,and biomass productivity of Lycopersicon esculentum,Lycopersicon pennellii and the F1 hybrid[J].Plant Physiology,1988,88(1):213-217.
[6] KOZLOWSKI T T,KRAMER P J,PALLARDY S G.The Physiological Ecology of Woody Plants[J].Journal of Ecology,1991,80(2):372.
[7] TIAN H Q,CHEN G S,LIU M L,et al.Model estimates of net primary productivity,evapotranspiration,and water use efficiency in the terrestrial ecosystems of the southern United States during 1895-2007[J].Forest Ecology and Management,2010,259(7):1311-1327.
[8] LU X L,ZHUANG Q L.Evaluating evapotranspiration and water-use efficiency of terrestrial ecosystems in the conterminous United States using MODIS and AmeriFlux data[J].Remote Sensing of Environment,2010,114(9):1924-1939.
[9] 张春敏,梁川,龙训建,等.江河源区植被水分利用效率遥感估算及动态变化[J].农业工程学报,2013,29(18):146-155.ZHANG C M,LIANG C,LONG X J,et al.Estimating and dynamic change of vegetation water use efficiency in Yangtze and Yellow River headwater regions[J].Transactions of the Chinese Society of Agricultural Engineering ,2013,29(18):146-155.
[10] 黄小涛,罗格平.新疆草地蒸散与水分利用效率的时空特征[J].植物生态学报,2017,41(5):506-518.HUANG X T,LUO G P.Spatio-temporal characteristics of evapotranspiration and water use efficiency in grasslands of Xinjiang[J].Chinese Journal of Plant Ecology,2017,41(5):506-518.
[11] 刘晓,戚超,闫艺兰,等.不同生态系统水分利用效率指标在黄土高原半干旱草地应用的适宜性评价[J].植物生态学报,2017,41(5):497-505.LIU X,QI C,YAN Y L,et al.Revised algorithm of ecosystem water use efficiency for semi-arid steppe in the Loess Plateau of China[J].Chinese Journal of Plant Ecology,2017,41(5):497-505.
[12] KLEIN T,SHSPINGER I,FIKLER B,et al.Relationships between stomatal regulation,water-use,and water-use efficiency of two coexisting Key mediterranean tree species[J].Forest Ecology and Management,2016,302:34-42.
[13] 张良侠,胡中民,樊江文,等.区域尺度生态系统水分利用效率的时空变异特征研究进展[J].地球科学进展,2014,29(6):691-699.ZHANG L X,HU Z M,FAN J W,et al.Advances in the spatiotemporal dynamics in ecosystem water use efficiency at regional scale[J].Advances in Earth Science,2014,29(6):691-699.
[14] 位贺杰,张艳芳,董孝斌,等.渭河流域植被WUE遥感估算及其时空特征[J].自然资源学报,2016,31(8):1275-1288.WEI H J,ZHANG Y F,DONG X B,et al.Estimating the spatio-temporal characteristic of vegetation water use efficiency over Weihe River Basin[J].Journal of Natural Resources,2016,31(8):1275-1288.
[15] LIU D,YU C L,ZHAO F.Response of the water use efficiency of natural vegetation to drought in Northeast China[J].Journal of Geographical Sciences,2018,28(5):611-628.
[16] ITO A,INATOMI M.Water-use efficiency of the terrestrial biosphere:A model analysis focusing on interactions between the global carbon and water cycles[J].Journal of Hydrometeorology,2012,13:681-694.
[17] TANG X,LI H,DESAI A R,et al.How is water use efficiency of terrestrial ecosystems distributed and changing on Earth?[J].Scientific Reports,2014,4(4):7483-7483.
[18] HUANG M,PIAO S,ZENG Z,et al.Seasonal responses of terrestrial ecosystem water use efficiency to climate change[J].Global Change Biology,2016,22(6):2165-2177.
[19] XUE B L,GUO Q,OTTO A,et al.Global patterns,trends,and drivers of water use efficiency from 2000 to 2013[J].Ecosphere,2015,6(10):174.
[20] TIAN Z,JIAN P,WEI L,et al.Spatial-temporal patterns of water use efficiency and climate controls in China’s Loess Plateau during 2000-2010[J].Science of the Total Environment,2016,565:105-122 .
[21] 刘宪锋,胡宝怡,任志远.黄土高原植被生态系统水分利用效率时空变化及驱动因素[J].中国农业科学,2018,51(2):302-314.LIU X F,HU B Y,REN Z Y.Spatiotemporal variation of water use efficiency and its driving forces on the Loess Plateau during 2000-2014[J].Scientia Agricultura Sinica,2018,51(2):302-314.
[22] 邹杰,丁建丽,杨胜天.近15年中亚及新疆生态系统水分利用效率时空变化分析[J].地理研究,2017,36(9):1742-1754.ZOU J,DING J L,YANG S T.Spatial and temporal variation analysis of ecosystem water use efficiency in Central Asia and Xinjiang in recent 15 years[J].Geographical Research,2017,36(9):1742-1754.
[23] 仇宽彪,成军锋.陕西省植被水分利用效率及与气候因素的关系[J].水土保持研究,2015,22(6):256-260.QIU K B,CHENG J F.Vegetation water use efficiency and its relationship with climate in Shaanxi Province[J].Research of Soil and Water Conservation,2015,22(6):256-260.
[24] 王银,徐兵兵,殷涛,等.基于GIS与RS的安徽省NPP模拟及时空分析[J].安徽农业科学,2014,42(17):5560-5563,5571.WANG Y,XU B B,YIN T,et al.Stimulation of net primary productivity and its spatio-temporal patterns in Anhui Province based on GIS and RS[J].Journal of Anhui Agricultural Sciences,2014,42(17):5560-5563,5571.
[25] 王芳,汪左,黄静,等.安徽省农田水分利用效率时空特征及其与气候因子的关系[J].生态学报,2018,38(17):6268-6279.WANG F,WANG Z,HUANG J,et al.Spatio-temporal distribution characteristics of cropland water use efficiency and its relationship with climate in Anhui Province[J].Acta Ecologica Sinica,38(17):6268-6279.
[26] MU Q Z,HEINSCH F A,ZHAO M S,et al.Development of a global evapotranspiration algorithm based on MODIS and global meteorology data[J].Remote Sensing of Environment,2007,111(4):519-536.
[27] MU Q Z,ZHAO M S,RUNNING S W.Improvements to a MODIS global terrestrial evapotranspiration algorithm[J].Remote Sensing of Environment,2011,115(8):1781-1800.
[28] ZHAO M S,RUNNING S W,NEMANI R R.Sensitivity of Moderate Resolution Imaging Spectroradiometer(MODIS) terrestrial primary production to the accuracy of meteorological reanalyses[J].Journal of Geophysical Research,2006,111(G1):G01002.
[29] RUNNING S W,ZHAO M S.User’s guide daily gpp and annual NPP(MOD17A2/A3) products NASA earth observing system MODIS land algorithm,Version 3.0.South Dakota:Land Processes Distributed Active Archive Center,2015:9-14.
[30] 吴炳方,苑全治,颜长珍,等.21世纪前十年的中国土地覆盖变化[J].第四纪研究,2014,34(4):723-731.WU B F,YUAN Q Z,YAN C Z,et al.Land cover changes of China from 2000 to 2010[J].Quaternary Sciences,2014,34(4):723-731.
[31] 何彬方,冯妍,吴文玉,等.安徽省近十年植被指数时空变化特征[J].生态学杂志,2010,29(10):1912-1918.HE B F,FENG Y,WU W Y,et al.Recent ten years spatio-temporal variation characteristics of vegetation index in Anhui Province[J].Chinese Journal of Ecology,2010,29(10):1912-1918.
[32] 仇宽彪,成军锋,贾宝全.中国中东部农田作物水分利用效率时空分布及影响因子分析[J].农业工程学报,2015,31(11):103-109.QIU K B,CHENG J F,JIA B Q.Spatio-temporal distribution of cropland water use efficiency and influential factors in middle and east of China[J].Transactions of the Chinese Society of Agricultural Engineering,2015,31(11):103-109.
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |