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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 study was to quantitatively study the changing features of the quantity, structure and landscape pattern of land use in urban areas of Shenyang City during the period 1910-2010. Combining the different historical backgrounds in different periods, the impact of policy on urban land use change was analyzed. Research methods: Spatial statistical analysis and landscape pattern index analysis. Research results: From 1910 to 2010, the area of each type of land use increased significantly, of which the annual average change was the smallest from 1910 to 1931, with an average of 0.18 km2 / year. The average change rapidly increased from 2.96 to 2.72 km2 / In particular, the increase of commercial and industrial land use was 5.83 km2 / year in a year. In addition, the landscape diversity index, evenness index and resolution index showed a downward trend throughout the study period, while the dominance index showed an upward trend. Research conclusions: The spatial pattern of land use varies greatly in different periods, the complexity and resolution of each component decreases, and the dominant degree of large patch increases. All these changes are directly and indirectly related to the social macroeconomic system, urban function orientation, land policy and land management policies and systems.