朱溪流域土壤肥力因子与坡度的空间关系  

Spatial Relationship between Soil Fertility factors and Slope at Zhuxi River Watershed

作　　者：林婷[1] LIN Ting(Shool of Geographical Science,School of Carbon Neutrality Future Technology,Fujian Normal University,Fuzhou Municipality of Fujian Province 350108)

机构地区：[1]福建师范大学地理科学学院、碳中和未来技术学院,福建福州350108

出　　处：《亚热带水土保持》2024年第4期30-33,共4页Subtropical Soil and Water Conservation

基　　金：福建省水利科技项目“南方离子型稀土矿区的生物修复及废水污染调控”项目编号(MSK202201)。

摘　　要：地形指标对土壤肥力因子有重要影响。分析朱溪流域土壤肥力因子与地形坡度之间的关系,为选择能够适应当地生态环境的植被提供一定的指导意见,在植被恢复、改善土壤肥力过程中更加具有针对性且及时、有效。以南方红壤侵蚀区典型流域福建省长汀县朱溪流域为例,通过软件ArcGIS10.8,提取该地区的地形坡度指标以及118个采样点的有机质、全氮、全钾、全磷等土壤肥力因子等数据后,进行空间叠加分析。总体上来说,该流域的土壤肥力处于较低水平,土壤有机质、全氮含量较高区域总体集中在研究区东部坡度较大以及西部坡度较小地区;全钾和全磷含量较高区域主要集中在研究区中西部。在生态恢复的过程中,应注重提高土壤肥力,加快植被恢复速度,实现生态效益最大化。Terrain indicator has the significant impact on soil fertility factors.The analysis on the relationship between soil fertility factors and terrain slope in the Zhuxi River Watershed provides the guidance for selecting the vegetation that can adapt to the local ecological environment,which is more targeted,timely and effective in the vegetation restoration and soil fertility improvement.The Zhuxi River Watershed in Changting County of Fujian Province,a typical red soil erosion area in South China was selected as the example,through the software ArcGIS 10.8,it was extracted the data of the terrain slope index and soil fertility factors such as organic matter,total nitrogen,total potassium,and total phosphorus from 118 sampling points in the area,and then performed the spatial overlay analysis.In general,the soil fertility in the watershed is at a relatively low level,the areas with high contents of soil organic matter and total nitrogen are concentrated in the eastern part with the steep slope and the western part with the gentle slope of the study area.The areas with high contents of total potassium and total phosphorus are mainly concentrated in the central and western parts of the study area.In the process of ecological restoration,the attention should be paid to the improvement of soil fertility,accelerating vegetation restoration speed and maximizing ecological benefits.

关 键 词：朱溪流域 地形坡度 土壤肥力因子 克里金插值法 

分 类 号：S157.1[农业科学—土壤学]