摘要
基于6期高分影像数据和实地调查,定量分析贵州惠水涟江大坝1966—2016年乡村转型发展进程中土地利用生产功能时空演变规律。结果表明:①坝子生产功能定量诊断体系可有效识别坝子生产功能空间格局;动态演变监测模型敏感反映坝子生产功能由"单一路径"主导向"多元路径"时空动态演化过程。②研究区生产功能空间整体由传统向非传统农业生产主导功能转向,2010年为坝区生产功能转型拐点。③坝区传统农业生产功能呈"小幅增加-平稳减少-快速缩减",非传统农业生产功能呈"波动维稳-小幅增加-快速增加"演变特征,且功能多样性不断增加。研究结果提供了贵州典型坝子土地功能转型微观案例,对当地土地资源优化配置具有现实意义。
Based on the hypothesis analysis of the land use function evolution of the basin in Guizhou province,this paper quantitatively explores the characteristics and rules of the spatialtemporal evolution of the land use production function under the background of rural transformation and development.The Lianjiang basin,located in Huishui County,Guizhou province,is chosen as the study area.The data comes from high resolution image interpretation and field surveys during 6 periods from 1966 and 2016.The results show that:(1)The spatial pattern of production function of the basin in karst mountainous areas can be effectively identified by the quantitative diagnostic model of the basin’s production function;the model of dynamic evolution monitoring can reflect the dynamic spatiotemporal evolution of the basin’s production function.This process is dominated by the"Single-Path"at the beginning and then turns to"Multi-Path".(2)During the study period,the reconstruction of the functional space of the basin in Guizhou has indeed occurred,and the overall functional structure of the basin has been transformed from the traditional agricultural production function to the layout of modern agricultural production functions.The microscopic spatial layout in the former is centered on the location of the town in the basin,and then it is reduced like a strip around the same center.The latter expanded in strips along the north-south road of the basin.(3)The traditional agricultural production function presents a changing trend featured by"Slight increase-Smooth reduction-Quick reduction",while the non-traditional agricultural function reflucts the change characteristics of"Stable fluctuations-Small increase-Rapid increase".The diversity of nontraditional agricultural production functions continues to increase,and the turning point of the production function transformation in the basin is 2010.(4)At the same time,this paper qualitatively discusses the driving force system and action process of the spatio-temporal evolution stage in th
作者
刘亚香
李阳兵
LIU Yaxiang;LI Yangbing(School of Geography and Environmental Science,Guizhou Normal University,Guiyang 550001,China)
出处
《地理研究》
CSSCI
CSCD
北大核心
2020年第2期430-446,共17页
Geographical Research
基金
国家自然科学基金项目(41661020,41261045).
关键词
乡村转型
坝子
土地利用生产功能
空间演变
贵州
rural transformation
basin
production function of land use
spatial evolution
Guizhou province
