基于神经网络的农地景观游憩功能评价及空间异质性研究  

Research on Spatial Heterogeneity of Cultivated Landscape Recreation Function Based on BP Neural Network

作　　者：程琦 刘蓉霞 柯新利 CHENG Qi;LIURong-xia;KE Xin-li(College of Arts and Communications,Wuhan Polytechnic University,Wuhan 430023,China;College of Public Administration,Huazhong Agricultural University,Wuhan 430070,China)

机构地区：[1]武汉轻工大学艺术与传媒学院,湖北武汉430023 [2]华中农业大学公共管理学院,430070

出　　处：《国土资源科技管理》2018年第4期61-70,共10页Scientific and Technological Management of Land and Resources

基　　金：国家社会科学基金(13CGL092);国家自然科学基金(41371113;41101098);中央高校基本科研业务费专项基金(2662017PY063)

摘　　要：我国社会主要矛盾已转化为人民日益增长的美好生活需要和不平衡不充分发展之间的矛盾。在这一背景下,农地景观游憩功能日益重要。因此,科学评价农地景观游憩功能并认识其空间异质性,对于充分发挥农地景观游憩功能以满足人民日益增长的美好生活需要具有重要的意义。以武汉市为例,从自然环境条件、人文环境条件和景观基础设施3个方面构建指标体系,运用BP神经网络确定指标权重,结合GIS空间分析工具获得武汉市农田景观游憩功能供给能力的空间分布图并研究其空间分布特征。结果表明:(1)武汉市中心的周边地区为武汉市农地景观游憩功能供给能力高值集中区;而在远离中心城市的南部地区,武汉市农地景观游憩功能供给能力则普遍较低。(2)从整体上来看,武汉市不同行政区都有较好的游憩功能供给潜力。因此,武汉市农地景观规划布局不必拘泥于行政区划,规划布局时应有效利用现有农地景观,游憩功能评价是有效促进农地景观规划布局合理性的重要方法。The major social contradictions in our country have been transformed into the contradiction between the growing needs of the people and the uneven development of the imbalance. In this situation, the recreation function of cultivated landscape is becoming more and more important. Scientific evaluation ofland landscape recreation function, and the realization of factors to fulfill the growing needs of the people. Taking its spatial heterogeneity have become significant Wuhan as an example,this paper established the index system from three aspects of natural environment conditions, humanistic environment conditions and landscape infrastructure, determining the index weights with BP neural network, then showed spatial distribution map of the supply capacity of cultivated landscape recreation function in Wuhan combing with GIS Spatial Analysis and studied its spatial distribution characteristics. The results showed that： （1） The supply capacity of cultivated landscape recreation function is very high around the center of the city,and it is much lower far away the center especially in the southern area; （2）On the whole, each administrative division of Wuhan have a good supply potential of cultivated landscape recreation function. As a result, the layout planning of the cultivated landscape in Wuhan should not be restricted to the administrative division Instead, the existing farmland landscape should be used effectively in the layout planning. The evaluation of recreation function is an important method to promote the rationality of farmland landscape layout.

关 键 词：景观游憩功能评价 空间异质性 神经网络 农地 武汉市 

分 类 号：K902[历史地理—人文地理学] F301[经济管理—产业经济]