1. Key Laboratory for Satellite Mapping Technology and Applications of State Administration of Surveying, Mapping, and Geoinformation of China, Nanjing University, Nanjing 210023, China 2. Institute of Resource Engineering,Longyan University, Longyan 364012, China 3. Jiangsu Provincial Key Laboratory of Geographic Information Science and Technology, Nanjing University, Nanjing 210023, China
In this paper, Yongding District, where there are World Heritage Hakka Tulou and its Conservation Plan Area(Hugao region), were taken as the study area. With the purpose of analyzing the land cover and ecological environment changes in the study area from 1988 to 2014, the authors selected five Landsat images acquired in 1988, 1996, 2002, 2009, 2014 respectively to generate the land cover classification maps by using multiple classifier system and the remote sensing based ecological index (RSEI)maps by using RSEI. The change of land cover and ecological environment in the study area was obtained by the method of post classification change detection. Some conclusions have been reached: ① The land cover of the study area significantly changed during the 26 years from 1988 to 2014, and the forest, shrub and grassland and built-up land increased rapidly, while farmland, degraded land and cultivation land decreased considerably; ② RSEI is suitable for the evaluation of the ecological environment of the World Heritage Hakka Tulou; ③ The overall ecological quality of the two study areas improved year by year except for the period of 1988―1996; ④ The relationship between the land cover and the ecological environment revealed that the ecological quality improved in the degraded land at high-altitude,the slope farmland which was converted into the forest land, shrub and grassland, and became worse in the area of forest, shrub and grassland land which degraded into the area of farmland, the degraded land and the reclaimed land as well as the expansion area surrounding the urban district.
徐志刚, 郑鸿瑞, 戴晨曦, 高鹏, 杜培军. 永定客家土楼世界遗产地土地覆盖与生态变化遥感评价[J]. 国土资源遥感, 2018, 30(1): 102-108.
Zhigang XU, Hongrui ZHENG, Chenxi DAI, Peng GAO, Peijun DU. Evaluation of land cover and ecological change of Yongding Hakka Tulou World Heritage Protection Area using remote sensing image. Remote Sensing for Land & Resources, 2018, 30(1): 102-108.
Meng Y,Zhao G X.Ecological environment condition evaluation of estuarine area based on quantitative remote sensing:A case study in Kenli County[J].China Environmental Science,2009,29(2):163-167.
Cheng J N,Zhao G X,Li H,et al.Dynamic changes and evaluation of land ecological environment status based on RS and GIS technique[J].Transactions of the CSAE,2008,24(11):83-88.
Ye Y H,Liang Y X,Shen Y Q,et al.Some issues related to “technical criterion for eco-environmental status evaluation (trial implementation)”[J].Tropical Geography,2009,29(4):404-406.
Liao K T,Wang C,Xi X H,et al.Land use and land cover change in Angkor heritage site based on remote sensing[J].Remote Sensing Information,2015,30(1):119-124.
[5]
Wondie M,Schneider W,Melesse A M,et al.Spatial and temporal land cover changes in the Simen Mountains National Park,a world heritage site in northwestern Ethiopia[J].Remote Sensing,2011,3(4):752-766.
[6]
Tomaselli V,Dimopoulos P,Marangi C,et al.Translating land cover/land use classifications to habitat taxonomies for landscape monitoring:A Mediterranean assessment[J].Landscape Ecology,2013,28(5):905-930.
Svancara L K,Scott J M,Loveland T R,et al.Assessing the landscape context and conversion risk of protected areas using satellite data products[J].Remote Sensing of Environment,2009,113(7):1357-1369.
[9]
Liu X P,Lao C H,Li X,et al.An integrated approach of remote sensing,GIS and swarm intelligence for zoning protected ecological areas[J].Landscape Ecology,2012,27(3):447-463.
Xu H Q.A remote sensing index for assessment of regional ecological changes[J].China Environmental Science,2013,33(5):889-897.
[11]
Du P J,Xia J S,Zhang W,et al.Multiple classifier system for remote sensing image classification:A review[J].Sensors,2012,12(4):4764-4792.
[12]
Mausel P W,Kramber W J,Lee J K.Optimum band selection for supervised classification of multispectral data[J].Photogrammetric Engineering and Remote Sensing,1990,56(1):55-60.
[13]
Jiang X G,Wang C Y,Wang C.Optimum band selection of hyperspectral remote sensing data[J].Arid Land Geography,2000,23(3):214-220.
[14]
Crist E P.A TM tasseled cap equivalent transformation for reflectance factor data[J].Remote Sensing of Environment,1985,17(3):301-306.
[15]
Huang C,Wylie B,Yang L,et al.Derivation of a tasselled cap transformation based on Landsat7 at-satellite reflectance[J].International Journal of Remote Sensing,2002,23(8):1741-1748.
[16]
Baig M H A,Zhang L F,Shuai T,et al.Derivation of a tasselled cap transformation based on Landsat8 at-satellite reflectance[J].Remote Sensing Letters,2014,5(5):423-431.
[17]
Rikimaru A.Landsat TM data processing guide for forest canopy density mapping and monitoring model[C]//ITTO Workshop on Utilization of Remote Sensing in Site Assessment and Planning for Rehabilitation of Logged-over Forest.Bangkok,Thailand:ITTO,1996:1-8.
[18]
Xu H.A new index for delineating built-up land features in satellite imagery[J].International Journal of Remote Sensing,2008,29(14):4269-4276.
[19]
NASA. Landsat7 science data users handbook[EB/OL].[2012-09-05]..
[20]
Nichol J.Remote sensing of urban heat islands by day and night[J].Photogrammetric Engineering and Remote Sensing,2005,71(5):613-621.