摘要
土地生态敏感性评价是分析区域土地生态环境稳定性的重要方法,是新时代生态环境与经济发展的协调之道,对于优化用地结构与布局,促进生态环境与经济社会协同发展具有重要意义。本文以临城县为研究区域,从自然因素、人为因素以及土地利用类型三个方面,选取坡度、坡向、高程、水域、植被覆盖度、夜间灯光指数以及土地利用类型7个土地生态敏感性评价因子,运用GIS技术对临城县进行土地生态敏感性评价,结果表明:临城县高敏感区、中敏感区、低敏感区和不敏感区的比例分别为13.97%、33.11%、32.48%、20.44%,西部山区林地和水域附近土地敏感性较高,自西向东呈现递减的趋势,低敏感区和不敏感区主要分布在东部平原和丘陵地区且比较分散,主要为居民点和产业用地。
Land ecological sensitivity evaluation is an important method to analyze the stability of regional land ecological environment,and is the way to coordinate the ecological environment and economic development in the new era.It is of great significance to optimize the structure and layout of land use and promote the coordinated development of ecological environment and economic society.In this paper,Lincheng County is taken as the research area.From the three aspects of natural factors,human factors and land use types,seven land ecological sensitivity factors including slope,aspect,elevation,waters,vegetation coverage,night light index and land use type,are selected to evaluate the land ecological sensitivity of Lincheng County by using GIS technology.The results show that the proportion of high sensitive area,middle sensitive area,low sensitive area and insensitive area in Lincheng County is 13.97%,33.11%,32.48% and 20.44% respectively,and the sensitivity of forest land and land near water area in western mountainous area is higher,showing a decreasing trend from west to east.Low-sensitive and non-sensitive areas are mainly distributed in the eastern plain and hilly areas and are relatively scattered,mainly for residential and industrial land.
作者
王宇桐
杨建宇
WANG Yutong;YANG Jianyu(College of Land Science and Technology,China Agricultural University,Beijing 100091,China)
出处
《河北省科学院学报》
CAS
2024年第4期8-13,共6页
Journal of The Hebei Academy of Sciences
基金
国家自然科学基金项目(42271282)。
关键词
土地生态
敏感性
评价
GIS
临城县
Land ecological
Sensitivity
Evaluation
Geographic information technology
Lincheng County
