西安市土地资源承载力时空变化研究  

Temporal-spatial changes of the land resources carrying capacity in Xi'an City

作　　者：杨瑾[1] 左坤 崔斌 雷花[1] YANG Jin;ZUO Kun;CUI bin;LEI Hua(School of Earth Science and Resources,Chang an University,Xi an 710054,Shaanxi,China;Xi an Branch of Land and Resources Bureau,Xi an 710300,Shaanxi,China)

机构地区：[1]长安大学地球科学与资源学院,陕西西安710054 [2]西安市国土资源局,陕西西安710300

出　　处：《西北师范大学学报（自然科学版）》2019年第1期121-128,共8页Journal of Northwest Normal University(Natural Science)

基　　金：国家自然科学基金资助项目(31670549;31170664)

摘　　要：运用熵权法、模糊综合评价法和地理探测器研究西安市土地资源承载力的时空差异.结果表明,从时间上看,西安市2006—2015年土地资源承载力总体呈现先上升后下降的波动状态,总体处于预警状态,评分在5.10～5.70,土地资源承载力压力较大.各县区耕地支撑力、建设用地支撑力和生态支撑力水平差异变化较大,空间异质性明显,但土地资源承载力整体水平相当,2006年土地资源承载力评分在0.32～0.55,到2015年土地资源承载力评分在4.10～6.50,土地承载力水平呈现上升状态.The temporal and spatial differences of the land resources carrying capacity in Xi'an City are studied by using entropy weight method,fuzzy comprehensive evaluation method and geodetector.The results show that,from the point of view of the time,the land resources carrying capacity of Xi'an City from 2006 to 2015 generally shows the fluctuation of the first and then the decline,the score is 5.10~5.70,the overall is in the early warning state,the pressure of land resource carrying capacity is large.In the term of space the land resource carrying capacity of each district and county in comparison,the score in 2006 was between 0.32 and 0.55.By 2015,the score was 4.10~6.50.The land carrying capacity level increased overall,but the overall situation was in the early warning state.From the perspective of space,the support of cultivated land in districts and counties,the support of construction land,the difference in the level of force and ecological support has changed greatly,and the spatial heterogeneity is obvious.

关 键 词：土地资源承载力 熵权法 模糊综合评价法 地理探测器 西安市 

分 类 号：F301.2[经济管理—产业经济]