基于景观适宜性评价的建设用地管制分区研究

[目的]开展建设用地适宜性评价并进行评价分区方案优选,为完善建设用地适宜性评价方法、优化建设用地空间布局提供参考。[方法]通过构建科学的建设用地适宜性评价指标体系,合理划定适宜性等级,根据适宜性等级的不同组合确定建设用地管制分区供选方案,构造景观生态质量评价模型,开展供选方案的优选。[结果]建设用地适宜性评价结果为6级适宜性等级区,面积分别为6.03,13.83,27.75,45.66,168.24,108.05km2;适宜性分区方案1具有较高的景观生态质量,为方案优选结果。[结论]基于适宜性评价的建设用地管制区方案具有较低的干扰度、较高的稳定度,景观生态质量综合指数较高。通过综合比较,方案1具有较高景观生态质量,它优化了城乡建设用地拓展空间,有利于提高景观生态系统的可持续性。

Regulation Zoning of Construction Land Based on Landscape Suitability Evaluation

[Objective] To carry out construction land suitability evaluation and optimize the evaluation partition scheme, supplying a good reference for promoting suitability evaluation and spatial allocation of construction land.[Methods] A scientific construction land suitability evaluation index system was built to confirm the suitability of grading for potential construction land space. Construction land regulation regions were confirmed alternatively based on different combinations of suitability grades. After that, landscape ecological quality was modeled for selecting the alternative schemes.[Results] The results of construction land suitability evaluation were six-level suitability grade zones, and their area were 6.03, 13.83, 27.75, 45.66, 168.24, 108.05 km². Scheme 1 of suitability zones had higher landscape ecological quality, cond was preferred scheme.[Conclusion] Confirming construction land regulation regions based on suitability grades is an effect way to get lower disturbance degree and improve stability degree. In this case, the comprehensive landscape ecological quality index is higher. After comprehensive contrast, scheme 1 has high landscape ecological quality. Because in this scheme, urban-rural construction land allocation is more reasonable, and it will help to increase the steady of landscape ecosystem.