WANG Weilin,YE Liaoyuan,YANG Kun,et al.Ecological Risk Analysis of Land Use Change on the Gentle Hillside Mountain Urbanization Construction Based on GIS[J].Research of Soil and Water Conservation,2016,23(06):358-362.
山地城镇化建设背景下的土地利用生态风险分析
- Title:
- Ecological Risk Analysis of Land Use Change on the Gentle Hillside Mountain Urbanization Construction Based on GIS
- Keywords:
- land-use; ecological risk; GIS; mountainous town; construction of mountainous towns; gentle hillside
- 分类号:
- X82
- 摘要:
- 在GIS的支持下，采用云南省曲靖市麒麟区金麟湾区块土地利用现状图以及山地城镇化建设土地利用规划图为信息源，根据不同土地利用方式生态影响的梯度变化，利用层次分析法确定不同土地利用类型的生态风险权重，构建了综合性生态风险指数。结果表明：规划前后，区块内的土地类型主要由林地、耕地向建设用地转移，其中，新增建设用地主要集中在≤2°和6°~15°带，符合云南省经济研究院报告提出的用地上山的总体思路——坡度分层梯度开发模式，由此导致区块内生态风险指数值从0.045 807上升至0.098 554，整个区域的生态风险指数整体增高，生态环境质量有所恶化，其中，三宝镇雷家庄村民委员会是生态环境恶化的重点区域之一。相关研究可为区块山地建设的土地利用规划以及云南省的山地生态环境评估提供科学参考依据。
- Abstract:
- Base on GIS, the temporal and spatial land scape changes and ecological risk change in Jinlinwan were studied by using two periods of the land use maps, which were land use status map and land use planning map. Then we determined the weight values of the ecological risk from different land use patterns by analytic hierarchy process and construct integrated ecological risk index of different periods. The results indicate the land types mainly shift from forest, arable land to construction land before and after planning, which the new construction land will locate in ≤ 2° and 6°~15° belts, in line with the mountain land-slope gradient stratification development model of Yunnan Institute of Economic Research, the ecological risk index value of the whole region will rise from 0.045 807 to 0.098 554, the ecological environment will become deteriorated. The Leijiazhuang villagers’ committee in Leijia town will become one of the key areas. This research could provide scientific reference for land use planning and ecological environmental assessment in Yunnan.
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备注/Memo
收稿日期:2015-12-15;改回日期:2016-01-04。
基金项目:国家科技支撑计划（2013BAJ07B00）；云南社会发展科技计划（2012CA024）；高等学校博士学科点专项科研基金（20115303110002）；云南师范大学研究生科研创新基金（yjs201531）
作者简介:王卫林(1988-),男,湖南衡阳人,硕士研究生,研究方向:从事农业生态环境和地理信息系统研究。E-mail:354307356@qq.com
通讯作者:叶燎原(1958-),男,云南大理人,教授,博士生导师,研究方向:主要从事物灾害工程方面的研究。E-mail:kmdcynu@163.com