摘要
对南宁市2000、2005、2010、2015和2018年五期土地利用数据,运用GIS技术、信息熵模型和灰色关联法研究南宁市土地利用结构信息熵值变化及其驱动因素。结果表明:(1)研究期间南宁市建设用地激增,耕地、林地、草地和水域面积连年下降,其他用地动态度最大,林地动态度最小。(2)南宁市土地利用信息熵值和均衡度持续波动上升,但上升趋势缓慢,区域差异明显,优势度则下降。(3)人文因子是影响南宁市土地利用结构信息熵变化的主导因素,自然因子属非主导因素。
Based on the five phases of land use data in Nanning during the years of 2000,2005,2010,2015 and 2018,GIS technology,information entropy model and grey correlation method are used to study the change of information entropy value of land use structure in Nanning and its driving factors.The results show that:(1)During the study period,the construction land in Nanning City increased sharply,and the area of arable land,woodland,grassland and water area declined year after year.The dynamics of other land use was the largest,and the dynamics of woodland was the smallest.(2)The entropy value and equilibrium degree of land use in Nanning continue to fluctuate and rise,but the upward trend is slow,regional differences are obvious,and the degree of dominance decreases.(3)Human factors are the dominant factors affecting the change of information entropy of land use structure in Nanning,while natural factors are non-dominant factors.
作者
李敏
严志强
彭定新
张华玉
梁中惠
LI Min;YAN Zhi-qiang;PENG Ding-xin;ZHANG Hua-yu;LIANG Zhong-hui(School of Natural Resources and Surveying,Nanning Normal University,Nanning 530001,China;School of Geography and Planning,Nanning 530001,China)
出处
《南宁师范大学学报（自然科学版）》
2021年第4期123-129,共7页
Journal of Nanning Normal University：Natural Science Edition
基金
地区科学基金项目“复杂环境下西江流域社会生态系统变化及其生态风险模拟研究”(21661021)。
关键词
土地利用结构
信息熵
灰色关联法
驱动因素
南宁市
land use structure
information entropy
grey correlation method
driving factors
Nanning City
