基于遥感生态指数的雄安新区生态质量评估
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摘要
城镇化建设的持续推进给生态环境带来的压力日益增加,多方位、客观、准确、快速测算区域生态环境质量是生态学研究的一个重点.本研究从绿度、湿度、热度、干度4方面分别提取了归一化植被指数(NDVI)、湿度指数(WET)、地表温度(LST)、归一化建筑-土壤指数(NDBSI) 4个分量指标,采用基于ENVI平台的主成分分析技术集成所选指标,基于新型遥感生态指数(RSEI)对1995—2015年雄安新区生态质量进行评估.结果表明:1995、2004和2015年,雄安新区的RSEI均值分别为0.724、0.710、0.682,生态质量总体呈下降趋势; 1995—2015年间,研究区RSEI主要由4、5级向1、2、3级转变,生态质量改善和恶化的面积分别占总面积的8.9%和20.9%,生态改善区域主要位于雄县东部和南部,主要原因在于该区域大面积的林地和园地受到当地政府的高度重视和严格保护,生态质量恶化区域主要位于城镇外围以及白洋淀周边,原因在于白洋淀水域面积的锐减和城市化的不断推进; RSEI与各分量指标的平均相关系数为0.804,均高于各分量指标间的平均相关系数,表明RSEI能较好地综合各分量指标信息,全面准确反映研究区生态质量状况.
The continuous urbanization leads to increasing pressure on the ecological environment.It is a key point to measure regional ecological environment quality objectively,accurately and quickly from multiple directions in ecological research. In this study,the normalized vegetation index( NDVI),wet index( WET),land surface temperature( LST),and normalized difference building-soil index( NDBSI) were extracted from the aspects of greenness,humidity,heat and dryness. The ecological quality of Xiongan New Area between 1995 and 2015 was evaluated by integrating selected indicators to measure the remote sensing ecological index( RSEI) with principal component analysis technology based on ENVI platform. The results showed that the average RSEI of Xiongan New Area was 0.724,0.710,and 0.682 in 1995,2004 and 2015,respectively,showing a downward trend. RSEI mainly changed from 4,5 to 1,2 and 3 in the study area from 1995 to 2015.Ecological quality improved and deteriorated area accounted for 8.9% and 20.9% of the total area respectively. The ecological quality improved area was mainly located in the east and south of Xiongxian County,because a large area of forests and gardens was highly valued and strictly protected by the local government. The ecological quality deteriorated area was in the periphery of the town and the surrounding area of Baiyangdian due to the sharp decline of the water area of Baiyangdian and the continuous urbanization. The three-year average correlation coefficient between RSEI and each component index was 0.804,which was higher than that between other component indices.Our results showed that RSEI could efficiently integrate the information of each component index and comprehensively and accurately reflect the ecological quality of the study area.
The continuous urbanization leads to increasing pressure on the ecological environment.It is a key point to measure regional ecological environment quality objectively,accurately and quickly from multiple directions in ecological research. In this study,the normalized vegetation index( NDVI),wet index( WET),land surface temperature( LST),and normalized difference building-soil index( NDBSI) were extracted from the aspects of greenness,humidity,heat and dryness. The ecological quality of Xiongan New Area between 1995 and 2015 was evaluated by integrating selected indicators to measure the remote sensing ecological index( RSEI) with principal component analysis technology based on ENVI platform. The results showed that the average RSEI of Xiongan New Area was 0.724,0.710,and 0.682 in 1995,2004 and 2015,respectively,showing a downward trend. RSEI mainly changed from 4,5 to 1,2 and 3 in the study area from 1995 to 2015.Ecological quality improved and deteriorated area accounted for 8.9% and 20.9% of the total area respectively. The ecological quality improved area was mainly located in the east and south of Xiongxian County,because a large area of forests and gardens was highly valued and strictly protected by the local government. The ecological quality deteriorated area was in the periphery of the town and the surrounding area of Baiyangdian due to the sharp decline of the water area of Baiyangdian and the continuous urbanization. The three-year average correlation coefficient between RSEI and each component index was 0.804,which was higher than that between other component indices.Our results showed that RSEI could efficiently integrate the information of each component index and comprehensively and accurately reflect the ecological quality of the study area.
引文
[1]Gao X(高星),Chen J(陈景),Liu L(刘蕾),et al.Spatial distribution characteristics and construction occupancy zoning of cultivated land quality in Xiongan New Area.Transactions of the Chinese Society of Agricultural Engineering(农业工程学报),2018,34(1):1-7(in Chinese)
[2]Wang S-Q(王树强),Xu N(徐娜).Comprehensive evaluation of eco-environmental carrying capacity in Xiongan New Area.Research on Economics and Management(经济与管理研究),2017,38(11):31-38(in Chinese)
[3]Li B-Y(李柏延),Ren Z-Y(任志远),Li R-Z(李瑞宗),et al.Urban heat island intensity quantitative inversion and city land surface temperatures in Xi’an.Resources Science(资源科学),2014,36(12):2631-2636(in Chinese)
[4]Sullivan CA,Skeffington MS,Gormally MJ,et al.The ecological status of grasslands on lowland farmlands in western Ireland and implications for grassland classification and nature value assessment.Biological Conservation,2010,143:1529-1539
[5]Wei S-R(魏善蓉),Jin X-M(金晓媚),Wang K-L(王凯霖),et al.Response of lake area variation to climate change in Qaidam Basin based on remote sensing.Earth Science Frontiers(地学前缘),2017,24(5):427-433(in Chinese)
[6]Peng Q(彭擎),Wang R-H(王让会),Jiang Y-L(蒋烨林),et al.Adaptability of drought situation monitor in Xinjiang with the NDVI-LST index.Acta Ecologica Sinica(生态学报),2018,38(13):1-9(in Chinese)
[7]Song H-M(宋慧敏),Xue L(薛亮).Dynamic monitoring and analysis of ecological environment in Weinan City,Northwest China based on RSEI mode.Chinese Journal of Applied Ecology(应用生态学报),2016,27(12):3913-3919(in Chinese)
[8]Crist EP.A TM tasseled cap equivalent transformation for reflectance factor data.Remote Sensing of Environment,1985,17:301-306
[9]Yao X(姚雄),Yu K-Y(余坤勇),Liu J(刘健),et al.Spatial and temporal changes of the ecological vulnerability in a serious soil erosion area,Southern China.Chinese Journal of Applied Ecology(应用生态学报),2016,27(3):735-745(in Chinese)
[10]Imhoff ML,Zhang P,Wolfe RE,et al.Remote sensing of the urban heat island effect across biomes in the continental USA.Remote Sensing of Environment,2010,114:504-513
[11]Xu H-Q(徐涵秋).A remote sensing index for assessment of regional ecological changes.China Environmental Science(中国环境科学),2013,33(5):889-897(in Chinese)
[12]Imhoff SM,Zhang PZ,Wolfe R,et al.Remote sensing of the urban heat island effect across biomes in the continental USA.Remote Sensing of Environment,2010,114:504-513
[13]Xu H-Q(徐涵秋).Assessment of ecological change in soil loss area using remote sensing technology.Transactions of the Chinese Society of Agricultural Engineering(农业工程学报),2013,29(7):91-97(in Chinese)
[14]Li F-L(李粉玲),Chang Q-R(常庆瑞),Shen J(申健),et al.Dynamic monitoring of ecological environment in loess hilly and gully region of Loess Plateau based on remote sensing:A case study on Fuxian County in Shaanxi Province,Northwest China.Chinese Journal of Applied Ecology(应用生态学报),2015,26(12):3811-3817(in Chinese)
[15]Xu H-Q(徐涵秋),Zhang H(张好).Ecological response to urban expansion in an island city,Xiamen,southeastern China.Scientia Geographica Sinica(地理科学),2015,35(7):867-872(in Chinese)
[16]Lin D(林铎),Pan W-B(潘文斌).Ecological environment assessment of Putian City.Environmental Science and Management(环境科学与管理),2014,39(9):179-183(in Chinese)
[17]Liu Z-C(刘智才),Xu H-Q(徐涵秋),Li L(李乐),et al.Ecological change in the Hangzhou area using the remote sensing based ecological index.Journal of Basic Science and Engineering(应用基础与工程科学学报),2015,23(4):728-739(in Chinese)
[18]Chander G,Markham BL,Helder DL.Summary of current radiometric calibration coefficients for Landsat MSS,TM,ETM+,and EO-1 ALI sensors.Remote Sensing of Environment,2009,113:893-903
[19]Xu H-Q(徐涵秋).Image-based normalization technique used for Landsat TM/ETM+imagery.Geomatics and Information Science of Wuhan University(武汉大学学报:信息科学版),2007,32(1):62-66(in Chinese)
[20]Wu Z-J(吴志杰),Wang M-M(王猛猛),Chen S-J(陈绍杰),et al.Monitoring and evaluation of ecological environment’s spatio-temporal variation in mine based on RSEI in Yongding mine.Ecological Science(生态科学),2016,35(5):200-207(in Chinese)
[21]Baig MHA,Zhang LF,Tong S,et al.Derivation of a tasselled cap transformation based on Landsat 8 at satellite reflectance.Remote Sensing Letters,2014,5:423-431
[22]Zhang H(张浩),Du P-J(杜培军),Luo J-Q(罗洁琼),et al.Analysis of ecology change based on remote sensing ecology index in Nanjing City.Geospatial Information(地理空间信息),2017,15(2):58-62(in Chinese)
[23]Yu XL,Guo XL,Wu ZC.Land surface temperature retrieval from Landsat 8 TIRS:Comparison between radiative transfer equation-based method,split window algorithm and single channel method.Remote Sensing,2014,6:9829-9852
[24]Ding F(丁凤),Xu H-Q(徐涵秋).Comparison of two new algorithms for retrieving land surface temperature from Landsat TM thermal band.Journal of Geoinformation Science(地理信息科学),2006,8(3):125-130(in Chinese)
[25]Xu HQ,Chen BQ.Remote sensing of the urban heat island and its changes in Xiamen City of SE China.Journal of Environmental Sciences,2004,16:276-281
[26]Cui H-W(崔瀚文),Jiang Q-G(姜琦刚),Cheng B(程彬),et al.Analysis of wetland dynamics and its influencing factors in Northeast China.Journal of Basic Science and Engineering(应用基础与工程科学学报),2013,21(2):214-223(in Chinese)
[27]Xu H-Q(徐涵秋).A study on information extraction of water body with the modified normalized difference water index(MNDWI).Journal of Remote Sensing(遥感学报),2005,9(5):589-595(in Chinese)
[28]Liu R(刘瑞),Wang S-X(王世新),Zhou Y(周艺),et al.Ecological environment condition evaluation mode of county region based on remote sensing techniques.China Environmental Science(中国环境科学),2012,32(1):181-186(in Chinese)
[29]Zhang C(张灿),Xu H-Q(徐涵秋),Zhang H(张好),et al.Fractional vegetation cover change and its ecological effect assessment in a typical reddish soil region of southeastern China:Changting County,Fujian Province.Journal of Natural Resources(自然资源学报),2015,30(6):917-928(in Chinese)
[30]Xu P-W(徐鹏炜),Zhao D(赵多).Ecological environmental quality assessment of Hangzhou urban area based on RS and GIS.Chinese Journal of Applied Ecology(应用生态学报),2006,17(6):1034-1038(in Chinese)
[2]Wang S-Q(王树强),Xu N(徐娜).Comprehensive evaluation of eco-environmental carrying capacity in Xiongan New Area.Research on Economics and Management(经济与管理研究),2017,38(11):31-38(in Chinese)
[3]Li B-Y(李柏延),Ren Z-Y(任志远),Li R-Z(李瑞宗),et al.Urban heat island intensity quantitative inversion and city land surface temperatures in Xi’an.Resources Science(资源科学),2014,36(12):2631-2636(in Chinese)
[4]Sullivan CA,Skeffington MS,Gormally MJ,et al.The ecological status of grasslands on lowland farmlands in western Ireland and implications for grassland classification and nature value assessment.Biological Conservation,2010,143:1529-1539
[5]Wei S-R(魏善蓉),Jin X-M(金晓媚),Wang K-L(王凯霖),et al.Response of lake area variation to climate change in Qaidam Basin based on remote sensing.Earth Science Frontiers(地学前缘),2017,24(5):427-433(in Chinese)
[6]Peng Q(彭擎),Wang R-H(王让会),Jiang Y-L(蒋烨林),et al.Adaptability of drought situation monitor in Xinjiang with the NDVI-LST index.Acta Ecologica Sinica(生态学报),2018,38(13):1-9(in Chinese)
[7]Song H-M(宋慧敏),Xue L(薛亮).Dynamic monitoring and analysis of ecological environment in Weinan City,Northwest China based on RSEI mode.Chinese Journal of Applied Ecology(应用生态学报),2016,27(12):3913-3919(in Chinese)
[8]Crist EP.A TM tasseled cap equivalent transformation for reflectance factor data.Remote Sensing of Environment,1985,17:301-306
[9]Yao X(姚雄),Yu K-Y(余坤勇),Liu J(刘健),et al.Spatial and temporal changes of the ecological vulnerability in a serious soil erosion area,Southern China.Chinese Journal of Applied Ecology(应用生态学报),2016,27(3):735-745(in Chinese)
[10]Imhoff ML,Zhang P,Wolfe RE,et al.Remote sensing of the urban heat island effect across biomes in the continental USA.Remote Sensing of Environment,2010,114:504-513
[11]Xu H-Q(徐涵秋).A remote sensing index for assessment of regional ecological changes.China Environmental Science(中国环境科学),2013,33(5):889-897(in Chinese)
[12]Imhoff SM,Zhang PZ,Wolfe R,et al.Remote sensing of the urban heat island effect across biomes in the continental USA.Remote Sensing of Environment,2010,114:504-513
[13]Xu H-Q(徐涵秋).Assessment of ecological change in soil loss area using remote sensing technology.Transactions of the Chinese Society of Agricultural Engineering(农业工程学报),2013,29(7):91-97(in Chinese)
[14]Li F-L(李粉玲),Chang Q-R(常庆瑞),Shen J(申健),et al.Dynamic monitoring of ecological environment in loess hilly and gully region of Loess Plateau based on remote sensing:A case study on Fuxian County in Shaanxi Province,Northwest China.Chinese Journal of Applied Ecology(应用生态学报),2015,26(12):3811-3817(in Chinese)
[15]Xu H-Q(徐涵秋),Zhang H(张好).Ecological response to urban expansion in an island city,Xiamen,southeastern China.Scientia Geographica Sinica(地理科学),2015,35(7):867-872(in Chinese)
[16]Lin D(林铎),Pan W-B(潘文斌).Ecological environment assessment of Putian City.Environmental Science and Management(环境科学与管理),2014,39(9):179-183(in Chinese)
[17]Liu Z-C(刘智才),Xu H-Q(徐涵秋),Li L(李乐),et al.Ecological change in the Hangzhou area using the remote sensing based ecological index.Journal of Basic Science and Engineering(应用基础与工程科学学报),2015,23(4):728-739(in Chinese)
[18]Chander G,Markham BL,Helder DL.Summary of current radiometric calibration coefficients for Landsat MSS,TM,ETM+,and EO-1 ALI sensors.Remote Sensing of Environment,2009,113:893-903
[19]Xu H-Q(徐涵秋).Image-based normalization technique used for Landsat TM/ETM+imagery.Geomatics and Information Science of Wuhan University(武汉大学学报:信息科学版),2007,32(1):62-66(in Chinese)
[20]Wu Z-J(吴志杰),Wang M-M(王猛猛),Chen S-J(陈绍杰),et al.Monitoring and evaluation of ecological environment’s spatio-temporal variation in mine based on RSEI in Yongding mine.Ecological Science(生态科学),2016,35(5):200-207(in Chinese)
[21]Baig MHA,Zhang LF,Tong S,et al.Derivation of a tasselled cap transformation based on Landsat 8 at satellite reflectance.Remote Sensing Letters,2014,5:423-431
[22]Zhang H(张浩),Du P-J(杜培军),Luo J-Q(罗洁琼),et al.Analysis of ecology change based on remote sensing ecology index in Nanjing City.Geospatial Information(地理空间信息),2017,15(2):58-62(in Chinese)
[23]Yu XL,Guo XL,Wu ZC.Land surface temperature retrieval from Landsat 8 TIRS:Comparison between radiative transfer equation-based method,split window algorithm and single channel method.Remote Sensing,2014,6:9829-9852
[24]Ding F(丁凤),Xu H-Q(徐涵秋).Comparison of two new algorithms for retrieving land surface temperature from Landsat TM thermal band.Journal of Geoinformation Science(地理信息科学),2006,8(3):125-130(in Chinese)
[25]Xu HQ,Chen BQ.Remote sensing of the urban heat island and its changes in Xiamen City of SE China.Journal of Environmental Sciences,2004,16:276-281
[26]Cui H-W(崔瀚文),Jiang Q-G(姜琦刚),Cheng B(程彬),et al.Analysis of wetland dynamics and its influencing factors in Northeast China.Journal of Basic Science and Engineering(应用基础与工程科学学报),2013,21(2):214-223(in Chinese)
[27]Xu H-Q(徐涵秋).A study on information extraction of water body with the modified normalized difference water index(MNDWI).Journal of Remote Sensing(遥感学报),2005,9(5):589-595(in Chinese)
[28]Liu R(刘瑞),Wang S-X(王世新),Zhou Y(周艺),et al.Ecological environment condition evaluation mode of county region based on remote sensing techniques.China Environmental Science(中国环境科学),2012,32(1):181-186(in Chinese)
[29]Zhang C(张灿),Xu H-Q(徐涵秋),Zhang H(张好),et al.Fractional vegetation cover change and its ecological effect assessment in a typical reddish soil region of southeastern China:Changting County,Fujian Province.Journal of Natural Resources(自然资源学报),2015,30(6):917-928(in Chinese)
[30]Xu P-W(徐鹏炜),Zhao D(赵多).Ecological environmental quality assessment of Hangzhou urban area based on RS and GIS.Chinese Journal of Applied Ecology(应用生态学报),2006,17(6):1034-1038(in Chinese)