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Position: Home > Articles > Assessment of Ecological Environmental Effects on Landuse Change in Chongqing City Nearly 30 Years Research of Soil and Water Conservation 2010,17 (3) 232-236

重庆主城区近30年土地利用变化的生态环境效应评价

作  者:
邓伟;杨华;崔艳君
单  位:
重庆师范大学
关键词:
土地利用变化;生态系统服务价值;重庆主城区;动态度;敏感性指数
摘  要:
以1978年、1993年和2007年三期landsat MSS/TM影像解译数据为依据,分析重庆主城区近30年来的土地利用变化,参考Costanza以及谢高地等提出的生态系统服务价值系数,制定出符合重庆主城区的生态系统服务价值系数,并对重庆主城区的生态系统服务价值进行了估算。结果表明:重庆主城区在1978-2007年近30a间,耕地呈持续减少趋势,重庆成为直辖市后,林地、耕地大量向建设用地转换,生态系统服务价值急剧降低,ESV在1978-1993年间增加了7.84亿元后由1993年的22.58亿元减少到了2007年的18.56亿元,年减少率为1.27%。林地的变化对重庆主城区生态系统服务价值的影响明显。生态服务价值系数的变化对重庆主城区生态系统总服务价值的影响缺乏弹性,说明研究结果可信。
译  名:
Assessment of Ecological Environmental Effects on Landuse Change in Chongqing City Nearly 30 Years
作  者:
DENG Wei1,2,YANG Hua1,2,CUI Yan-jun1,2(1.College of Geographical Science,Chongqing Normal University,Chongqing 400047,China; 2.Municipal GIS Applied Research Key Laboratory in Chongqing Colleges and Universities,Chongqing 400047,China)
关键词:
landuse change/cover(LUCC); the value of ecosystem services; Chongqing city; dynamic degree; sensitivity index
摘  要:
Based on the data of 1978,1993 and 2007 three years Landsat MSS/TM,the paper analyzes landuse/cover change of nearly former thirty years in Chongqing city. The ecosystem service value (ESV) of Chongqing city was estimated by the coefficient of the ESV lined with Chongqing city which referenced Costanza's and Xie Gaodi's. The results indicated that in 1978-2007,continuous decreasing trend of cultivated land was and the ESV descended as a result of the great loss of woodland and cultivated land for urban construction after Chongqing became municipality directly under the Central Government. After increased by 7.84×108 Yuan in 1978-1993,the ESV of Chongqing city descended from 22.58×108 Yuan in 1993 to 18.56×108 Yuan in 2007,the descending ratio was 1.27%. Changes in forest ecosystem services in Chongqing city obviously impact on the value. The result is reliability because the change of the ESV's coefficient made little influence on total ecosystem service value.

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