CHEN Feng,HE Jing,CUI Wenbin.Analysis of Soil Organic Carbon Driving in the Eastern Foot of Helan Mountain Based on Geographic Detector[J].Northern Horticulture,2020,44(17):87-93.[doi:10.11937/bfyy.20194661]
基于地理探测器的宁夏贺兰山东麓土壤有机碳驱动分析
- Title:
- Analysis of Soil Organic Carbon Driving in the Eastern Foot of Helan Mountain Based on Geographic Detector
- 文献标志码:
- A
- 摘要:
- 以宁夏贺兰山东麓7年葡萄地为研究对象，通过地理探测器对土壤中总有机碳、轻组有机碳、重组有机碳、高活性、中活性和低活性有机碳与土壤中部分理化性质的关系进行分析，研究西北干旱半干旱地区耕作地块的土壤有机碳及其组分与土壤养分的相互关系。结果表明：贺兰山东麓葡萄产地土壤总有机碳含量低于我国平均水平，平均值为(3.93±2.49)g?kg-1，变异强度为弱、中等变异，纵向呈下降（降-略升-降）趋势。交互探测发现，全钾、速效钾是轻组有机碳和活性有机碳解释力最强的交互因子。因子探测与生态探测结果表明，全氮是对土壤总有机碳的空间分布影响显著且贡献强度最大的因子，该研究可以为深入了解西部地区土壤有机碳变化的驱动力提供参考依据。
- Abstract:
- Seven-year-old grapes at the eastern foot of Helan Mountain in Ningxia were used as the research object,and the relationship between total organic carbon,light organic carbon,recombinant organic carbon,high activity,middle activity and low activity organic carbon in soil and some physical and chemical properties of soil were analyzed in soil based on geo-detector,in order to study the relationship between soil organic carbon and its components and soil nutrients in arid and semi-arid areas.The results showed that the content of soil total organic carbon in the eastern foot of Helan Mountain was lower than the average level of China,the average value was (3.93±2.49）g?kg-1,the variation intensity was weak and moderate,and decreased vertically(downward-slightly upward-downward).Interactive detector showed that total potassium and available potassium are the most powerful interaction factors between light group and active organic carbon.Factor detector and Ecological risk detector shows that total nitrogen had a significant effect on the spatial distribution of soil total organic carbon and had the greatest contribution to the spatial distribution of soil total organic carbon,in order to provide a basis for comprehensive understanding of the contribution of soil organic carbon driving factors.
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备注/Memo
第一作者简介：陈锋（1993-），男，山东济宁人，硕士研究生，研究方向为自然资源环境。E-mail:cf0927@qq.com.责任作者：贺婧（1977-），女，黑龙江五常人，博士，副教授，现主要从事农业环境与生态等研究工作。E-mail:819848204@qq.com.基金项目：国家自然科学基金资助项目（41661050）。收稿日期：2020-03-14