RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN >> 2011, Vol. 20 >> Issue (11): 1383-.

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LANDSCAPE PATTERN IMPACT ASSESSMENT FOR THE CONSTRUCTION OF YONGJI HIGHWAY|HUNAN

MA Su1, YANG Bo1, ZHENG Zhihua2, WANG Binwu3, LIU Yupeng1, XU Bihua2   

  1. (1.College of Resources and Environmental Science|GIS Research Centre,Hunan Normal University,Changsha 410081|China;2.Shanghai Ship &|Shipping Research Institute,Shanghai 200134,China|3.College of Resources and Environment,Hunan Agricultural University,Changsha 410081|China
  • Online:2011-11-22

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Abstract:

Remote Sensing (RS),Global Positioning System (GPS) and Geographical Information System (GIS) technologies were used to do landscape classification and mapping along the Yongji highway before and after its construction.Furthermore,several landscape indices in landscape and patch levels were calculated and analyzed in Fragstats33（landscape structure analysis program）,and landscape ecological methods were used in the study of landscape pattern change.Results were as follows.In patch level,conifer class area (CA) decreased,and 257% of the land area converted to highway, nonirrigated farmland area reduced mostly,but dominant patch type showed no change.In landscape level, patch number (NP) and patch density (PD) increased but largest patch index (LPI) decreased which means the landscape heterogeneity increased.Buffer analyses in different scales showed that the construction of Yongji highway impacted landscape patterns most seriously within the buffer of 500 meters.The method provided in this paper is practicable in environmental assessment and road network planning in the future

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