摘要
通过对影响湿地生态因子的筛选 ,进行主成份分析、灰色关联度分析 ,区划出河南省湿地生态环境有 5种类型。影响湿地的主要生态因子为人口密度、鸟种类、鸟数量、水质等级、食物丰富度和 1月份平均气温。
Through selection of ecological factors affecting wetlands,the paper classifies ecological environment of wetlands into 5 types based on principal components analysis and grey sequence analysis.The paper also points out that there are six ecological factors including population density, bird species and number, water quality level, richness degree of food and average temperature in January. Finally,the paper sets up the judgement formula of wetland class and the evaluation and judgement model of ecological environment about wetlands in Henan.
出处
《河南林业科技》
2000年第2期10-14,共5页
Journal of Henan Forestry Science and Technology