Analyzing Driving Factors of Soil Alkalinization Based on Geodetector—A Case in Northeast China

The Songnen Plain of Northeast China is one the three largest soda saline–alkaline regions in world. To better understand soil alkalinization this important agricultural region China, it vital to explore driving factors alkalinity. Combined with prior research on Wuyu’er–Shuangyang River Basin, study examined alkalinity using Geodetector method. First, analysis results risk detector, factor and ecological detector revealed primary area. Next, interaction determined how combinations impacted In general, natural altitude spring temperature, especially altitude, played a key role alkalinization. These indicated that closed terrain warming trends were main causes addition, there significant enhance-nonlinear enhance-bivariate relationships among factors, which combined contributed more than individual factors.