京津冀地区耕地利用时空分异与影响机制分析  

Spatio-temporal Differentiation and Influencing Mechanism of Cultivated Land Use in Beijing Tianjin Hebei Region

作　　者：王雨枫 王娟 WANG Yufeng;WANG Juan(College of Enviromental Science and Engineering,Ocean University of China,Qingdao 266100,China;Urban&Rural Planning&Design Institute of Yunnan Province,Kunming 650228,China)

机构地区：[1]中国海洋大学环境科学与工程学院,青岛266100 [2]云南省城乡规划设计研究院,昆明650228

出　　处：《农业机械学报》2022年第1期192-197,214,共7页Transactions of the Chinese Society for Agricultural Machinery

基　　金：国家自然科学基金项目(71603142);山东省社会科学规划研究项目(19CXSXJ05)。

摘　　要：京津冀地区耕地资源的不均衡分布使得社会经济发展的地域差异性突出,厘清其耕地时空异质性对于地区协调可持续发展有着重要意义。基于京津冀地区,采用耕地动态变化模型及地理探测器等方法对1990—2020年间其耕地空间分布演化与影响机制进行了探讨。结果表明:北京市率先进入工业化城镇建设,天津市次之,河北省滞后,相对的耕地变化动态度高值也先后出现。耕地分布集聚特征显著,呈现“东南密西北疏”的核密度格局。土地利用结构改变特征明显,面积净增长的主要有建设用地、林地及水域,面积净减少的主要有耕地、草地及未利用地。耕地流失主要表现出环北京及环渤海为中心的聚集式特征,且东部流失的热度比西部高,南部比北部高。社会经济及政策因素对耕地利用的影响力呈上升趋势,而自然因素的影响力呈下降趋势。本研究结果可为京津冀地区耕地保护、区域协调发展提供科学依据。Due to the unbalanced distribution of cultivated land resources in the Beijing Tianjin Hebei region,the regional differences of social and economic development are prominent.It is of great significance to clarify the spatial and temporal heterogeneity of cultivated land for the coordinated and sustainable development of the region.Based on the Beijing Tianjin Hebei region,the evolution of cultivated land spatial distribution and its influencing mechanism during the period of 1990—2020 were studied by using the dynamic change model of cultivated land and geo-detector methods.The results showed that Beijing took the lead in the construction of industrialized cities,followed by Tianjin,and Hebei lagged behind.The relatively high dynamic value of cultivated land change also appeared one after another.The distribution of cultivated land had a significant agglomeration characteristic,showing a kernel density pattern of“dense in southeast and sparse in northwest”.The characteristics of land use structure change were obvious.Construction land,woodland and water area were the main areas of net increase,while cultivated land,grassland and unused land were the main areas of net decrease.The loss of cultivated land mainly showed the aggregation characteristics around Beijing and Bohai Sea,and the heat of loss in the east was higher than that in the west,and that in the south was higher than that in the north.The influence of socio-economic and policy factors on cultivated land use showed an upward trend,while the influence of natural factors showed a downward trend.The results can provide a scientific basis for farmland protection and regional coordinated development in Beijing Tianjin Hebei region.

关 键 词：耕地分布 土地利用转移 时空演变 影响机制 京津冀地区 

分 类 号：F301.21[经济管理—产业经济]