摘要
以湖南省株洲市炎陵县作为研究区域,构建了“三生空间”评价指标体系,运用物元模型和GIS空间分析从“三生空间”视角对土地利用适宜性进行了评价。结果表明:炎陵县85%的村镇用地处于适宜状态(包括最适宜、高适宜),但策源乡和垄溪乡土地利用不合理的现象相对突出,其中策源乡生活适宜性较低,垄溪乡生态适宜性较低;炎陵县“三生空间”土地利用适宜性分布存在空间差异,生活、生产适宜性较高的区域主要集中在炎陵县西北部,生态适宜性较高的区域主要集中在炎陵县东北部;影响炎陵县“三生空间”土地利用适宜性的因素具有差异性。其中,中心城区可达性(B)和交通干线可达性(B)是影响生活适宜性评价的两个主要因素;耕作收益率(B)是影响生产适宜性评价的主要因素;影响生产适宜性评价的主要因素是生态不适宜面积(B)和坡度大于25°的用地比例(B)。
Taking Yanling County of Zhuzhou City in Hunan Province as the research target,a construction of the evaluation index system has thus been made of the“three-livable space”,followed by an evaluation of the land use suitability from the perspective of the“three-livable space”by using matter-element model and GIS spatial analysis.The results show that 85% of the rural land in Yanling County is in a suitable state (including the most suitable and highly suitable),yet with a relatively unreasonable land use in Ceyuan Town and Longxi Town,with a low level of both the living suitability of the former one and the ecological suitability of the latter one.There is a spatial discrepancy in the land use suitability distribution of the“three-livable space”in Yanling County,the areas with high living suitability and high production suitability mainly concentrated in the northwest of Yanling County,and the areas with high ecological suitability mainly concentrated in the northeast of Yanling County.There are different factors affecting the land use suitability of the“three-livable space”in Yanling County,among which are the accessibility of central urban area (B) and traffic trunk line (B),two main affecting factors of the evaluation of living suitability.The yield of tillage (B) is the main factor affecting the evaluation of production suitability,meanwhile the main factors affecting production suitability evaluation are ecological unsuitable area (B) and the proportion of land with a slope greater than 25°(B).
作者
田一豆
赵先超
TIAN Yidou;ZHAO Xianchao(College of City and Environment,Hunan University of Technology,Zhuzhou Hunan 412007,China)
出处
《湖南工业大学学报》
2022年第5期79-87,共9页
Journal of Hunan University of Technology
基金
国家重点研发计划基金资助项目(2019YFD1101300-02)。
关键词
土地利用
适宜性评价
“三生空间”
物元可拓模型
炎陵县
land use
suitability evaluation
three-livable space
matter element model
Yanling County
