广西贵港市土地生态系统服务功能重要性评价及其空间分布

Assessment of Land Ecosystem Service Importance and Its Spatial Distribution in Guigang City,Guangxi

采用GIS技术和运用定位定量方法,分析贵港市水源涵养、土壤保持、生物多样性保护及其空间分布特征,并在此基础上对贵港市土地生态系统服务功能重要性及其空间分布进行综合评价,为贵港市土地生态环境的保护、建设及土地利用总体规划的编制提供科学依据。评价结果表明,贵港市土地生态系统服务功能重要性分布中,极重要地区面积1 270.86 km2,重要地区面积3 097.92 km2,比较重要地区面积1 164.68 km2。对于极重要和重要的区域,在土地利用规划中应严格执行管制措施,重点突出生态环境的保护和建设。

By using GIS technology and the method of combining positioning and quantitative analysis,the importance for water sources conservation,soil conservation,biodiversity conservation of Guigang and its spatial distribution were analyzed.On this basis,the land ecosystem service importance and its spatial distribution in Guigang were assessed comprehensively.The synthesized assessment could provide scientific basis for the land eco-environment protection and construction,and theoretical basis for land use planning establishment.The evaluation showed that the most important area was 1 270.86 km2,important area was 3 097.92 km2,and the more important area was 1 164.68 km2.In land use planning,the control measures of the very important and important regions should be implemented strictly,and the eco-environment protection and construction should be highlighted.