黄淮海平原农区土地利用转型及其动力机制

本文分析了黄淮海平原农区2000-2010 年间土地利用转型的时空格局，在构建土地利用转型动力机制分析概念框架基础上，运用空间计量回归分析方法深入剖析了黄淮海平原农区5种主要土地利用类型转换的动力机制。黄淮海平原农区土地利用转型特征表现为：2000-2010年，耕地、未利用地和草地面积的减少伴随城乡建设用地、水域和林地面积的增加；2000-2005年变化幅度明显大于2005-2010 年的变化幅度。分析结果表明：黄淮海平原农区5 种主要土地利用类型转换是自然环境和社会经济多种因素共同作用的结果，其中交通和区位条件对这5 种土地利用类型转换的影响最为显著，是导致土地利用转型的共性驱动因子。并指出：地方各级政府在制定有关土地利用政策时，既应充分考虑驱动各种土地利用转型的主要因子及其地域分异和社会经济发展规律，还需考虑各地类之间转换的适宜性及难易程度，因地制宜开展土地综合整治与利用，让土地利用转型与当地自然环境条件和区域经济社会发展阶段相适应，并使其发生在适宜的区域范围内。

Land use transitions and their dynamic mechanism in the Huang-Huai-Hai Plain

Land use transition refers to the changes in land use morphology including dominantmorphology and recessive morphology of a certain region over a certain period of time driven by different factors. Recently, issues related to land use transition in China have attracted interest from a wide variety of researchers as well as the government officials. This paper tries to examine the patterns of land use transition and their dynamic mechanism in the Huang-Huai- Hai Plain during 2000- 2010. On the one hand, the temporal and spatial patterns of land use transition and their characteristics and laws were analyzed. On the other hand, based on the established conceptual framework of analyzing the dynamic mechanism of land use transition, spatial econometric regression analysis method was used to analyze the dynamic mechanism of the five kinds of major land use types transformation in the Huang-Huai-Hai Plain at the county level. Land use pattern changes in the study area were characterized by the increase of construction land, water body and forested land along with the decrease of farmland, unused land and grassland. The changes during 2000- 2005 were much more significant than that during 2005- 2010. In terms of factors affecting land use transitions, physical factors are the basis of land use transition, and it will generate a long- term impact on that, while socioeconomicfactors such as population and GDP tend to determine the direction, structure, size and layout of land use transition at a short period. Land regulation and policy factors play a mandatory guidance and restraint role in land use transitions, so as to improve the overall landuse efficiency. Land engineering is an important tool to control land use transition. In general, the five kinds of major land use types transformation are the results of combined action of a variety of physical, social and economic factors, during which traffic condition and location condition have the most significant effects, that is, they are the common factors. The authors argue that understanding the temporal and spatial processes of land use transitions and their dynamic mechanism is the important foundation for utilizing land resources, protectingregional ecological environment, and promoting regional socio- economic sustainable development.