长江沿线样带农村宅基地转型

doi:10.11821/xb200502001

摘要/Abstract

摘要：

利用样带这一综合与集成研究的工具,选取无论是在社会经济发展程度还是自然环境要素变化等方面都存在明显梯度的长江沿线样带为研究区,采用横向比较的研究方法,基于一定的理论假设,研究了区内的农村宅基地转型。研究表明：1987~2001年研究区根据土地利用变化的聚集度指数划分的各区段农村宅基地在建设用地增加中所占比例总体上看,从上游至下游,从甘孜—玉树区到泸州—迪庆区、恩施—重庆区、铜陵—宜昌区直至上海—巢湖区,这一比例逐渐降低;长江沿线样带各区段所处的农村宅基地转型阶段与样带内各区段所处的经济发展水平相吻合,基本上验证了此前的理论假设。据此,目前由各省 (区、市) 自行制定农村宅基地标准不利于实现土地的集约利用,国家应根据区域经济发展水平和自然条件的差异分区、分类制定农村宅基地标准。针对研究区目前农村宅基地的发展现状,根据区域农村宅基地转型阶段提出了相应的管理对策。

关键词: 土地利用转型, 样带, 农村发展, 横向比较研究, 农村宅基地, 长江

Abstract:

Each IGBP Transect has been designed around the variation of a major environmental factor as it influences terrestrial ecosystem structure and functioning. Most are organised around a gradient of either temperature or precipitation that varies continuously in geographical space. Transects are usually taken as tools for synthesis and integration. Synthesis and integration activities are essential for the practical application of transects research to management issues. Transect of the Yangtse River with obvious gradients both in the condition of physical environment and in the level of socioeconomic development is taken as a study area. There are 312 counties involving 11 provinces in the study area. Its total area amounts to 1.12 million km². Land use transition refers to the changes in land use morphology, the overall pattern of actual land cover in a region at a given time, over time. It usually corresponds to the transition of regional socioeconomic development phase. The theoretical hypotheses of rural housing land transition are put forward as the following. That is the development of rural housing of every region should undergo some stages: the ratio of rural housing to increased settlements decreases gradually with the development of local economy, and the end of the transition corresponds to a new equilibrium between rural housing and other construction activities. Taking horizontal comparative research method, rural housing land transition in the study area is analyzed. Conclusions are drawn as follows: 1) In the period of 15 years from 1987 to 2001, the ratio of rural housing to increased settlements in five regions, divided according to the aggregation index of land use change, is generally decreased gradually from the upper reaches to the lower reaches. 2) Each region is in different rural housing land transition phases respectively, and it corresponds to its respective socioeconomic development level. The results successfully testified above theoretical hypotheses. Accordingly, the authors suggest that the state should set down uniform standard of rural housing according to the differentiation of socioeconomic development level and physical conditions instead of different provinces with its individual standard at present. Furthermore, aiming at the status quo of rural housing in the study area, corresponding regional policies should be set down according to their different rural housing land transition phases.

Key words: land use transition, transect, rural development, horizontal comparative research, rural housing land, the Yangtse River

龙花楼, 李秀彬. 长江沿线样带农村宅基地转型[J]. 地理学报, 2005, 60(2): 179-188.

LONG Hualou, LI Xiubin. Rural Housing Land Transition in Transect of the Yangtse River[J]. Acta Geographica Sinica, 2005, 60(2): 179-188.

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