城市化水平与都市农业景观生态质量的关系——以西安市南郊为例  

Impact of urbanization on ecological quality of urban agricultural landscape: A case study in the Southern suburbs of Xi'an City

作　　者：李梦桃[1] 周忠学[1] 王明[1] 韩晔[1] 

机构地区：[1]陕西师范大学旅游与环境学院,陕西西安710119

出　　处：《农业现代化研究》2016年第5期863-870,共8页Research of Agricultural Modernization

基　　金：国家自然科学基金项目(41271550);教育部人文社会科学研究西部和边疆地区项目(12XJC790003)~~

摘　　要：都市农业景观受城市化作用日益显著,揭示城市化水平对都市农业景观生态质量的影响规律对科学规划都市农业用地、协调城市化与都市农业发展具有指导意义。本文以西安市南郊为例,运用RS、GIS技术和FRAGSTATS软件、GWR模型,通过测评城市化水平、都市农业景观生态质量及其相关关系,分析了城市化对都市农业景观生态质量的影响。结果表明:1 2013年西安市的经济发展水平、社会发展水平、居民生活质量及生态环境投资情况以及综合城市化水平在空间上均表现出从主城区向远郊区降低的递减格局。2城市化导致区域都市农业景观生态质量总体下降,都市农业景观生态质量由城市核心区向外围乡村地域上升,表现出与城市化空间格局相反的空间梯度变化特征,二者呈显著的负相关。3城市化对都市农业景观的占用、分割破碎以及对景观格局与过程的巨大干扰,使得都市农业景观的抗干扰能力与稳定程度降低,导致景观生态质量下降。城市化水平与都市农业景观干扰程度呈显著正相关,与都市农业稳定程度呈显著负相关。There are increasingly significant impacts of urbanization on urban agricultural landscape. Identifying the changes occurring in the ecological quality of urban agricultural landscape during the process of urbanization is critical to the strategic planning for the usage of urban agricultural land and to the adjustment and optimization of the balanced development between urbanization and urban agricultural landscape. Based on the RS and GIS methods and applying the GWR model, this paper conducted an experimental study on the impacts of urbanization on the ecological quality of urban agricultural landscape after analyzing the level of urbanization, ecological quality of urban agricultural landscape and interrelations between them in the Southern suburbs of Xi’an City. Results showed that： 1） the level of economic development, the level of social development, the quality of life, the ecological environment, and the level of new urbanization of Xi’an City in space had an obvious gradient descending pattern from the inner urban area to the outer suburbs and rural area in 2013; 2） urbanization has led to generally the decrease in the ecological quality of urban agricultural landscape. From the inner urban area to the suburban and rural area, the level of ecological quality of urban agricultural landscape gradually increased in space, and the spatial pattern of urbanization showing the opposite trend. There was a strongly negative correlation between the urbanization level and the ecological quality of urban agricultural landscape; and 3） urban agricultural landscape was occupied, fragmentized and polluted during the process of urbanization, and a lot of changes occurred in landscape pattern and its process. These changes resulted in the decrease of the ecology quality of urban agriculture landscape, which further weakened the capacity of anti-interference and the stability of urban agricultural landscape ecosystem. There was a strongly positive correlation between the urbanization level and the anti-interfe

关 键 词：城市化水平 都市农业景观 景观生态质量 景观 西安市 

分 类 号：F299.27[经济管理—国民经济]