勉县至宁强县高速公路生态恢复评价研究  

Research on Ecological Recovery Evaluation along the Highway from Mian County to Ningqiang County

作　　者：樊鸿章[1] 刘宏[2] 董建辉[2] 

机构地区：[1]杨凌职业技术学院,陕西杨凌712100 [2]陕西职业技术学院,陕西西安710100

出　　处：《水土保持通报》2007年第4期144-147,共4页Bulletin of Soil and Water Conservation

基　　金：勉宁高速公路项目处"山区高速公路生态恢复系统研究"[2003]007基金

摘　　要：针对勉县至宁强县高速公路所采用的生态恢复类型,选择土壤有机质、碱解氮、速效磷、植被覆盖度、播种植物的生长状况、当地植物的入侵种数及入侵种生长状况作为评价指标,用聚类分析的方法对山区高速公路生态恢复情况进行分类评价,通过聚类使27个代表性样本凝聚为8类,与路域生态恢复进展情况相吻合,取得了较好的评价效果。Focusing on the ecological recovery type adopted in the highway from Mian County to Ningqiang County, the authors analyzed the classified situation of the ecological recovery in mountain area using the method of clustering analysis. Soil organic matter, alkali dissolving nitrogen, rapidly available phosphorus, vegetation coverage, and native plant invasion species and their growth state were selected as the evaluation indexes. Through the clustering analysis, 27 representative samples were reduced to 8, which may fit to the situation of the highway ecological recovery. Such an evaluation method has received a positive result.

关 键 词：生态恢复 评价指标 聚类分析 

分 类 号：S157.2[农业科学—土壤学]