摘要
为了解东北农牧交错区土地可持续利用水平及主要障碍因子,从经济可行性、资源环境可持续性和社会可接受性3个方面,选取21个指标构建了土地可持续利用评价指标体系,应用基于组合权重法和灰色关联分析法改进的TOPSIS法和障碍度模型对2005—2014年白城市土地可持续利用水平进行了评价和分析。结果表明:(1)2005—2014年白城市土地可持续利用总体水平不断提高,综合贴近度由0.335 5增加到0.632 0,可持续利用水平由"较低水平"上升为"较高水平"。(2)从长远分析,经济可行性障碍度总体呈下降态势,资源环境可持续性障碍度和社会可接受性障碍度总体呈上升态势。(3)影响白城市土地可持续利用的主要障碍因子包括人口自然增长率、建成区绿化覆盖率、草原覆盖率、第三产业产值占GDP比例等。为了促进白城市土地可持续利用水平不断提高,需要在控制人口增速的基础上,进一步调整经济结构,加强土地利用管理,有效控制草原退化速度。
In order to know the level of sustainable land use and main obstacle factors of agro-pastoral zone of northeast China,the evaluation index system was constructed from economic possibility,sustainability of resources environment and social acceptability including 21 indicators.The level of sustainable land use in Baicheng was evaluated and analyzed from 2005 to 2014 with improved TOPSIS method based on combination weight method and grey relational analysis.The results showed that the level of sustainable land use in Baicheng had been gradually improved from 2005 to 2014 with the comprehensive close degree increasing from 0.335 5 to 0.6 320.The level of sustainable land use had risen from lower level to higher level.In the long run,the obstacle degree of economic possibility reduced.And the obstacle degree of sustainability of resources environment and social acceptability increased.The natural population growth rate,green coverage rate of developed areas,grassland coverage,and the ratio of third industry output values to GDP were verified to be the key obstacles for further improvement of sustainable land use in Baicheng.The sustainable land use was continuously improved by controlling population growth,further adjusting the economic structure,strengthening land use management,effectively controlling grassland degradation and so on.
作者
韩锦辉
赵文晋
杨天通
王斯勃
HAN Jinhui;ZHAO Wenjin;YANG Tiantong;WANG Sibo(College of Environment and Resources,Jilin University,Changchun 130012,China)
出处
《水土保持研究》
CSCD
北大核心
2018年第3期279-284,291,共7页
Research of Soil and Water Conservation
基金
国家水体污染控制与治理科技重大专项基金"辽河源头区水污染综合治理技术及示范研究"(2012ZX07202-009)
