河南省泥石流形成环境的量化研究

河南省地处中原,位于全国二、三级地貌阶梯的过渡带,是一个泥石流多发地区,造成了生命财产的重大损失.泥石流灾害受地质、地貌、水文、气象、土壤、植被等自然因素和人为因素综合作用的控制,是山区地质环境和生态环境恶化的产物.文章首先介绍了河南省泥石流概况,分析了河南省泥石流发育特征及其成因,归纳出10个主要泥石流发生的环境条件因子,对其量化权重标准进行了说明;并以小秦岭地区为例,对泥石流灾害趋势进行了分析评价.

Quantization Research of Debris Flow Environmental Conditions in Henan Province

Henan Province lies in the central plains and in the transition zone between second-and three-order geomorphologic ladder,where the disaster of debris flow often happens,which has caused a large loss of life and property.Under the comprehensive influence of geology,landform,hydrology,meteorology,agrology,and vegetation,the debris flow is a result of environmental deterioration in geology and ecology.The article firstly introduces the status quo of debris flows in Henan Province,analyzes their characteristics and causes of formation,sums up 10 main environmental factors that result in the debris flow,evaluates their weight standards after quantization and finally analyzes and evaluates the disaster trend of debris flow.