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生态可占用性是指从生态学角度出发,生态系统或者生态空间可以被开发利用的程度,是生态系统本身的属性。论文提出生态可占用性的概念和研究目的,并利用最小费用距离模型,分析了广西西江经济带景观单元的可占用性,提出分区方案。研究表明,可占用性低值区、较低值区、中值区、较高值区和高值区分别占区域总面积的12.17%、18.75%、38.55%、28.69%和1.84%。大部分建设用地分布在较高值区内,其余建设用地中,城镇用地主要分布在高值区,而农村居民点和工矿用地则主要分布在中值区。文章认为,研究能够揭示不同类型建设用地的分布规律和区域生态空间布局;虽然受到源的分布、尺度和空间范围等因素的影响,但所得结论对于引导区域开发、构建生态安全格局具有重要指导意义。
Ecological occupancy refers to the degree from which the ecosystem or ecological space can be exploited and utilized from the ecological point of view and is the attribute of the ecosystem itself. The paper proposes the concept of ecological occupancy and research purposes. Using the minimum cost distance model, the paper analyzes the occupancy of landscape units in the economic belt of Xijiang in Guangxi and proposes a zoning scheme. The results show that the low, medium, high value and high value occupancy areas account for 12.17%, 18.75%, 38.55%, 28.69% and 1.84% of the total area respectively. Most of the construction land is distributed in the higher value areas. Among the remaining construction land, the urban land is mainly distributed in the high value areas, while the rural residential areas and industrial and mining land are mainly distributed in the median area. The article believes that the research can reveal the distribution of different types of construction land and the layout of regional ecological space. Although it is affected by such factors as source distribution, scale and spatial extent, the conclusions obtained are of great guiding significance for guiding the development of the region and building the ecological safety pattern .