土地利用变化遥感制图与时空变化分析——以韶关市武江区龙归镇为例  

Remote Sensing Mapping and Spatiotemporal Analysis of Land Use Change--A Case Study of Longgui Town in Wujiang District

作　　者：刘伟 徐尚昭 Liu Wei;Xu Shangzhao(Surveying and Remote Sensing Information Center of Research Institute No.290.CNNC,Shaoguan 512026,Guangdong,China)

机构地区：[1]核工业二九〇研究所测绘与遥感信息中心,广东韶关512026

出　　处：《绿色科技》2024年第8期250-254,共5页Journal of Green Science and Technology

摘　　要：城镇土地利用变化是人类活动塑造地表形态的重要表现形式。基于韶关市武江区2012-2022年2期土地利用变更调查遥感监测数据和DEM数据,借助GIS多元空间分析方法,对武江区龙归镇近10年间土地利用变化进行了系统分析。研究结果表明:10年间,龙归镇各土地利用类型时空变化显著,其中林地、建设用地、其他农用地和园地地类面积发生增加,林地增加面积最大为997.23 hm^(2),耕地、草地、未利用地的面积呈现减少状态,其中耕地减少面积最大为673.7 hm^(2)。在地形坡度方面,耕地与建设用地和其他地类间的转化主要体现在低坡度区域,坡度较高的地方,受限于自然环境,人类活动较弱,土地利用变化不明显。研究可为粤北山区城镇级别的土地综合开发管理和利用、地理空间规划等提供数据依据和理论参考。Urban land use change is an important manifestation of human activities shaping surface morphology.This study is based on remote sensing monitoring data and DEM data from the second phase of land use change survey in Wujiang District,Shaoguan City from 2012 to 2022.With the help of GIS multivariate spatial analysis methods,a systematic analysis of land use changes in Longgui Town,Wujiang District over the past 10 years is conducted.Research has shown that over the past decade,there have been significant spatiotemporal changes in various land use types in Longgui Town,with an increase in the area of forest land,construction land,other agricultural land,and garden land.The largest increase in forest land area was 997.23 hectares,while the area of cultivated land,grassland,and unused land showed a decreasing state.Among them,the largest decrease in cultivated land area was 673.7 hectares.In terms of terrain slope,the transformation between cultivated land and construction land and other land types is mainly reflected in low slope areas.The place with high slope is limited by the natural environment with weak human activities,and the land use change is not obvious.This study can provide data basis and theoretical reference for the comprehensive development,management,and utilization of land at the urban level in the mountainous areas of northern Guangdong,as well as geographic spatial planning.

关 键 词：土地利用现状 地理信息系统 遥感制图 时空变化 坡度 

分 类 号：TP79[自动化与计算机技术—检测技术与自动化装置]