摘要
研究目的:量化研究1910—2010年间沈阳城区土地利用数量、结构和景观格局等变化特征,并结合各时期不同的历史背景,分析政策制度对城市土地利用变化的影响。研究方法:空间统计分析和景观格局指数分析方法。研究结果:1910—2010年期间,各土地利用类型面积大幅度增加,其中1910—1931年期间年均变化量最小,平均为0.18 km2/年,1996—2010年间平均变化量迅速增加到2.72 km2/年,尤其是工商业用地增加量最大,为5.83 km2/年;另外,整个研究时段内的景观多样性指数、均匀度指数、分离度指数呈下降趋势,而优势度指数出现上升趋势。研究结论:不同时期土地利用空间格局变化存在较大差异,各组分的复杂性和分离度降低,大斑块的优势度增加。这些变化都直接和间接地与社会宏观经济制度、城市功能定位、土地政策及土地管理等政策制度密切相关。
The purpose of this paper is to quantitative study the features of urban land use change regarding quantity, structure, and landscape in Shenyang between 1910 and 2010, and further to analyze the impact of relevant policies on the land use change taking historical background into account. Methods of spatial statistics and landscape structure index are used. The results show that the area of different land categories increased substantially between 1910 and 2010. The smallest increase of the land quantity was in the period of 1910- 1931 at the average amount of 0.18km^2. The largest increase of the land quantity was in the period of 1996 -- 2010 at the average of 2.72km^2, especially for industrial and commercial land use to a maximum of 5.83km^2/years. In addition, throughout the study period of the landscape diversity index, evenness index, isolation index all decreased, while the dominance index was in a rising trend. The conclusion of this paper is that land use change differently in different periods, The complexity and diversity decreased among categories, i.e., the advantage of big land parcel gradually emerged, All the changes are directly or indirectly related to the social and economic system at marco-level, city function, and different land nolicies.
出处
《中国土地科学》
CSSCI
北大核心
2012年第9期41-47,共7页
China Land Science
关键词
土地利用
空间格局
变化
政策制度
land use
spatial structure
change
policy and institution
