基于最小累积阻力模型的珠海市生态适宜性评价

应用生态学报

基于最小累积阻力模型的珠海市生态适宜性评价

李健飞¹,李林¹,郭泺^1*,杜世宏^2

(¹中央民族大学生命与环境科学学院, 北京 100081; ²北京大学遥感与地理信息系统研究所, 北京 100871)

出版日期:2016-01-18 发布日期:2016-01-18

Assessment on the ecological suitability in Zhuhai City, Guangdong, China, based on minimum cumulative resistance model.

LI Jian-fei¹, LI Lin¹， GUO Luo^1*, DU Shi-hong^2

(¹College of Life and Environmental Sciences, Minzu University of China, Beijing 100081, China; ^2Institute of Remote Sensing and GIS, Peking University, Beijing 100871, China).

Online:2016-01-18 Published:2016-01-18

摘要/Abstract

摘要： 城市景观具有空间异质性特点，城市建设用地或生态需求用地向周围扩张的过程中受到的阻力值不同，土地单元刺激和推进生态需求用地的扩张强度不同.为比较同一土地单元推进和阻碍作用的大小，可以在相同标准下，通过最小累积阻力值来比较两者大小，找出2种景观过程的平衡点，根据生态学最小限制因子原理，并以2个扩张过程的最小累积阻力差值作为评价城市土地生态适宜性的方法.本文选取珠海市为研究对象，以遥感影像、野外调查和统计资料为数据源，采用相对评价法对珠海城市的生态适宜性进行评价，在ArcGIS支持下，选取景观类型、生态价值、土壤侵蚀敏感性、地质灾害敏感性以及生态功能5类指标，采用最小累积阻力模型对珠海市进行生态适宜性评价.结果表明：珠海市土地生态适宜程度的5个区域分别为禁止建设区、限制建设区、适宜建设区、重点建设区以及基本农田，分别占总面积的10.1%、32.9%、36.3%、2.3%和18.4%；中心城区土地生态适宜程度的4个等级分别为禁止建设区、限制建设区、适宜建设区和重点建设区，分别占中心城区面积的11.6%、25.6%、52.4%和10.4%.研究提出了珠海城市可持续发展框架，一方面要严格控制中心城区规模，另一方面要大力发展金湾、斗门次级中心城，完善公共基础设施以缓解珠海东西部发展极不平衡的现状.

Abstract: Urban landscape has the characteristics of spatial heterogeneity. Because the expansion process of urban constructive or ecological land has different resistance values, the land unit stimulates and promotes the expansion of ecological land with different intensity. To compare the effect of promoting and hindering functions in the same land unit, we firstly compared the minimum cumulative resistance value of promoting and hindering functions, and then looked for the balance of two landscape processes under the same standard. According to the ecology principle of minimum limit factor, taking the minimum cumulative resistance analysis method under two expansion processes as the evaluation method of urban land ecological suitability, this research took Zhuhai City as the study area to estimate urban ecological suitability by relative evaluation method with remote sensing image, field survey, and statistics data. With the support of ArcGIS, five types of indicators on landscape types, ecological value, soil erosion sensitivity, sensitivity of geological disasters, and ecological function were selected as input parameters in the minimum cumulative resistance model to compute urban ecological suitability. The results showed that the ecological suitability of the whole Zhuhai City was divided into five levels: constructive expansion prohibited zone (10.1%), constructive expansion restricted zone (32.9%), key construction zone (36.3%), priority development zone (2.3%), and basic cropland (18.4%). Ecological suitability of the central area of Zhuhai City was divided into four levels: constructive expansion prohibited zone (11.6%), constructive expansion restricted zone (25.6%), key construction zone (52.4%), priority development zone (10.4%). Finally, we put forward the sustainable development framework of Zhuhai City according to the research conclusion. On one hand, the government should strictly control the development of the urban center area. On the other hand, the secondary urban center area such as Junchang and Doumen need improve the public infrastructure to relieve the imbalance between eastern and western development in Zhuhai City.

李健飞1,李林1,郭泺1*,杜世宏2. 基于最小累积阻力模型的珠海市生态适宜性评价[J]. 应用生态学报.

LI Jian-fei1, LI Lin1， GUO Luo1*. Assessment on the ecological suitability in Zhuhai City, Guangdong, China, based on minimum cumulative resistance model.[J]. Chinese Journal of Applied Ecology.