摘要
由于人类对土地功能的认识单一,造成乡村地区土地利用不充分,导致土地资源的闲置与浪费。而土地单一功能利用模式转变的关键是探究土地多功能的利用。以北流河流域林地为研究区对象,从气候、土壤、地质、地形、植被要素进行综合分析,对林地土地的生产功能、生态功能、景观功能和材料功能进行空间定量化,运用热点分析和地理探测器评价北流河流域林地多功能性及影响因素;并通过K均值聚类分析划分林地土地多功能利用类型区。结果表明:(1)流域内林地多功能热点区域呈集聚分布,冷点区域呈带状分布在北流河流域的山麓。(2)北流河流域林地多功能空间分异的驱动力主要以植被因素为主,其中郁闭度、蓄积量、碳汇为主导因子,植被盖度对林地土地多功能空间分异的影响较小,应加强北流河流域内的植被保护和严禁过度开发林地;交互作用明显,交互作用均为双因子增强或非线性增强,气候、土壤、植被、地形、地质条件共同制约着北流河流域林地多功能水平。(3)通过伪F统计将北流河流域林地划分为3个主导区和1个提升区,分别为生产功能主导区、生态功能主导区、景观功能主导区以及综合功能提升区,其中生态功能主导区面积最大;并针对主导功能提出相应的利用方向。
Due to the basic understanding of human beings on the land function,the use of land in rural areas was insufficient,resulting in land resources were idle and wasted.The key to the transformation of single-function land use mode was to explore the multi-functional use of land.This paper took Beiliu River Basin as the research area and conducted a comprehensive analysis based on the elements of climate,soil,geology,topography and vegetation.The production function,ecological function,landscape function and material function of forest land were spatially quantified,and the versatility and influencing factors of the forest land in the Beiliu River Basin were evaluated by hot spot analysis and geographic detectors combining with the K-mean clustering analysis for the division of multifunctional utilization area.The results indicated that:(1)The multi-functional hot spots of forest land in the watershed were clustered,and the cold spots were distributed in bands in the foothills of the Beiliu River Basin.(2)The driving force of the multi-functional spatial differentiation of forest land in the Beiliu River Basin was mainly driven by vegetation factors,among which canopy closure,stock volume,and carbon sink were the dominant factors,vegetation coverage had little effect on the multi-functional spatial differentiation of forest land.It was necessary to strengthen the vegetation protection in the Beiliu River Basin and strictly prohibit the over-exploitation of forest land,which had a significant effect on improving the multi-functionality of the forest land;The interaction effect was obvious,and the interaction effects were all two-factor enhancement or nonlinear enhancement.Climate,soil,vegetation,terrain,geological conditions jointly restricted the multi-functional level of forest land in the Beiliu River Basin.(3)The forest land in the Beiliu River Basin was divided into three leading areas and one improvement area by pseudo F-statistics,which were the production function leading area,the ecological function leading a
作者
孙茂凯
韦世岩
陈亚恒
SUN Maokai;WEI Shiyan;CHEN Yaheng(College of Resources and Environmental Sciences,Hebei Agricultural University,Baoding 071000,China;College of Land and Resources,Hebei Agricultural University,Baoding 071000,China)
出处
《林业与生态科学》
2023年第1期38-47,共10页
Forestry and Ecological Sciences
基金
河北省重点研发计划项目(21373807D)。
关键词
多功能
北流河流域
评价
地理探测器
分区
multi-function
Beiliu River Basin
evaluation
geographical detector
zoning
