基于GIS技术的成都市灾区资源环境承载力快速评价
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摘要
"5.12"汶川大地震发生后,成都市的都江堰等西部5个市县遭受了不同程度的破坏。灾区的资源环境承载力快速评价将为灾后重建规划提供直接参考。由于以往资源承载力评价多为特定区域单指标评价,根据震后重建的需要,确定研究区人口承载能力作为评价对象。评价指标包括地质灾害、地貌环境、耕地、水、旅游资源5项,各因素权重由专家系统确定。通过G IS工具对研究区域按3 km×3 km进行栅格化处理,叠加各因素图层,得出各单元的资源环境承载力的初步结果。该结果与实际情况对照相符。最后根据评价结果提出了相应的建议。
Wenchuan earthquake caused great damage to Dujiangyan and other 4 counties of Chengdu city.The quick evaluation on environment resources carrying capacity is an important part of the post-earthquake reconstruction.Current carrying capacity usually evaluate single resources of a certain area,few of them assess a whole city.This paper gets the evaluated target and objects according to the carrying capacity definitions.Five factors including geology disasters' distribution,physiognomy environment,plow land,water and travel resource were used for evaluation the carrying capacity of a city area.Each factor's weight got from the specialists.The research area were divided to 3 km×3 km grids by GIS software.The final result is make up with grid's evaluation result which concluded by five factor layer's overlay.Some suggestions base on the evaluation result were given and the end.
Wenchuan earthquake caused great damage to Dujiangyan and other 4 counties of Chengdu city.The quick evaluation on environment resources carrying capacity is an important part of the post-earthquake reconstruction.Current carrying capacity usually evaluate single resources of a certain area,few of them assess a whole city.This paper gets the evaluated target and objects according to the carrying capacity definitions.Five factors including geology disasters' distribution,physiognomy environment,plow land,water and travel resource were used for evaluation the carrying capacity of a city area.Each factor's weight got from the specialists.The research area were divided to 3 km×3 km grids by GIS software.The final result is make up with grid's evaluation result which concluded by five factor layer's overlay.Some suggestions base on the evaluation result were given and the end.
引文
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[12]Li Bonian.The method of determining the objective weightin multi-purpose decision[J].Operations Research and Man-agemant Science,2002,11(5):36-39.[李柏年.多目标决策中客观性权重的一种研究法[J].运筹与管理,2002,11(5):36-39.]
[2]David Price.Carrying capacity reconsidered[J].Popula-tion and Environment,1999,21(1):5-26.
[3]Smaal A C,Prins T C,Dankers N,et al.Minimum re-quirements for modeling bivalve carrying capacity[J].A-quatic Ecology,1998,31:423-428.
[4]Liu Zhonghai.Environment carrying capacity theory and es-tablishment of evaluation system[J].Environmental Protec-tion,2008,06:72-74.[刘中海,环境承载力理论与法律评估制度构建[J].环境保护,2008,6:72-74.]
[5]Luo Zhenli.History and prospect of land carrying capacityresearch[J].Land&Resources Herald,2005,2:25-27.[罗贞礼.土地承载力研究的回顾与展望[J].国土资源导刊,2005,2:25-27.]
[6]Chen Shouyu,Hu Jimin.Variable fuzzy evaluation modeland method for comprehensive evaluation of groundwater re-sources carrying capacity[J].Water Resources Protection,2006,22(6):1-5.[陈守煜,胡吉敏.地下水资源承载能力评价模糊可变模型与方法[J].水资源保护,2006,22(6):1-5.]
[7]Zhang Xin,Li Yuannong,Wang Jike.Present situation anddevelopment trend of the researchon water resources carryingcapacity[J].Agricultural Reseach In The Arid Areas,2001,19(2):117-121.[张鑫,李援农,王纪科.水资源承载力研究现状及其发展趋势[J].干旱地区农业研究,2001,19(2):117-121].
[8]Shi Yulin.Land carrying capacity research of China[J].Discovery of Nature,1991(4):9-14.[石玉林.我国土地资源承载能力研究[J].大自然探索,1991(4):9-14.]
[9]Zhang Guanghai,Liu jia,Wang lei,et al.Study on synthe-sis evaluation of tourism environmental carrying capacityofshandong peninsula urban agglomeration[J].Progress inGeography,2008,27(2):74-78.[张广海,刘佳,王蕾,等.山东半岛城市群旅游环境承载力综合评价研究[J].地理科学进展,2008,27(2):74-78.]
[10]Shi Yuezhen,Zhao Hongjie.Progress on ecology carryingcapacity quantitative evaluation[J].YellowRiver,2005,27(3):6-8.[石月珍,赵洪杰.生态承载力定量评价方法的研究进展[J].人民黄河,2005,27(3):6-8.]
[11]Gao Jixi.Theoretical exploration on sustainable develop-ment—Theory,method and application on ecology carrying[M].Beijing:Chinese Environment Science Press.2001:8-9.[高吉喜.可持续发展理论探索-生态承载力理论、方法与应用[M].北京:中国环境科学出版社,2001:8-9.]
[12]Li Bonian.The method of determining the objective weightin multi-purpose decision[J].Operations Research and Man-agemant Science,2002,11(5):36-39.[李柏年.多目标决策中客观性权重的一种研究法[J].运筹与管理,2002,11(5):36-39.]
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