摘要
从保障极端干旱区生态安全、生物多样性以及土地资源的合理配置的目的出发,采用最小累积阻力模型,分析于田县生态源地空间扩张的最小阻力分布,在此基础上对生态用地保护的重要性进行分级,进而设置生态用地规划情景,同时对影响于田县生态用地空间分布的驱动因素进行了探讨。结果表明:(1)于田县生态用地分为生态核心区、生态控制区、生态过渡区、生态保护区4种类型,其面积分别为9622.20、1078.45、10846.70、8322.65 km^2,其中生态核心区和生态控制区主要分布在研究区南部昆仑山谷地和克里雅河及相关支流水域等沿岸;生态过渡区和生态保护区主要分布在东部和北部广大的荒漠戈壁区域。(2)于田县生态用地规划受到自然和社会经济因素多方面的制约,具体表现在受绿洲经济的发展、环境绿化建设、城镇化以及人口和收入等主要因子的影响。于田县生态用地规划以期为极端干旱区绿洲生态用地合理开发和保护提供了重要科学依据。
With the objective of safeguarding ecological security,and biodiversity,as well as the rational allocation of land resources in extremely arid areas,a minimum cumulative resistance model was used to analyze the minimum resistance distribution during the spatial expansion of ecological sources,by classifying the importance of the protection of ecological land and establishing an ecological land planning scenario. Additionally,the driving factors affecting the spatial distribution of ecological land in Yutian county were discussed. The results show the following:( 1) the ecological land in Yutian county is divided into four types,i.e.,the ecological core area,ecological control area,ecological transition area,and ecological protection area. with areas of 9622. 20 km^2,1078.45 km^2,10846.70 km^2 and 8322. 65 km^2,respectively. Among these areas,the ecological core and ecological control areas were mainly distributed in the South Kunlun Valley and the Keriya river and related tributaries forming part of the study area. The ecological transition and ecological protection areas were mainly distributed in the vast desert and Gobi regions in the east and north;( 2) Yutian county ecological land planning is restricted by natural and socioeconomic factors,and is affected by the development of an oasis economy,verdurization,urbanization,population expansion,people’s income and so on. Ecological land planning in Yutian county is expected to provide an important scientific basis for the rational development and protection of ecological lands in extremely arid areas.
作者
刘枝军
王宏卫
杨胜天
王媛媛
王盼
李根生
LIU Zhijun;WANG Hongwei;YANG Shengtian;WANG Yuanyuan;WANG Pan;LI Gensheng(College of Resources and Environment Science,Xinjiang University,Urumqi 830046,China;Key laboratory of Oasis Ecology,Xinjiang University,Urumqi 830046,China;College of Water Science ,Beijing Normal University,Beijing 100875,China)
出处
《生态学报》
CAS
CSCD
北大核心
2018年第22期7950-7959,共10页
Acta Ecologica Sinica
基金
国家自然科学基金项目(U1603241)
新疆维吾尔自治区自然科学基金项目(2016D01C053)
关键词
生态用地
最小累积阻力模型
影响因素
极端干旱区
于田县
ecological land
minimum cumulative resistance model
influencing factors
extremely arid area
Yutian county
