黄土丘陵区农村道路的布局特征分析——以燕沟流域为例  

Distribution characteristics of rural road in the Loess Hilly Plateau:A case study of Yangou Watershed

作　　者：徐学选[1] 李波[2] 郑世清[1] 李星[3] 

机构地区：[1]西北农林科技大学水土保持研究所,陕西杨凌712100 [2]海南省环境科学研究所,海口570206 [3]西北农林科技大学资源环境学院,陕西杨凌712100

出　　处：《中国水土保持科学》2011年第2期112-115,120,共5页Science of Soil and Water Conservation

基　　金：科技部科技支撑计划"坡面降雨径流调控与高效利用技术"(2006BAD09B01-5);国家973项目"水土流失环境效应评价理论与指标体系"(2007CB407205)

摘　　要：农村道路承担了农村农业生产和社会经济活动双重任务,合理配置道路密度对促进农村经济、减少水土流失意义重大。以黄土丘陵区的燕沟流域为对象,利用ARCGIS软件及统计分析方法,对流域的村庄、土地利用类型和路网的关系进行空间分析,得出:1)燕沟流域道路密度平均值为3.73 km/km2,其中耕地为5.25 km/km2,果园为4.59 km/km2,林地为2.74 km/km2。2)距村庄中心的距离越小,道路密度越高。村庄0.5 km半径范围内道路密度平均为4.67 km/km2,在此范围内耕地为5.40 km/km2,果园为4.65 km/km2,林地为4.03 km/km2。村庄1.0 km半径范围内道路密度平均为3.87 km/km2,此范围内耕地为6.09 km/km2,果园为5.10 km/km2,林地为2.88 km/km2;3)农村道路密度大小更多地取决于林地道路密度,同时还受村庄在流域交通的位置、村庄经济开发状况等因素影响。结果对同类地区农村道路合理配置有参考价值。Rural road takes charge of the dual tasks including rural agricultural production and associated socio-economic activities.Therefore,rational allocation of road density could promote rural economy,and reduce soil erosion too.Yangou Watershed had been taken as a case to study the rural road density,and related factors for the Loess Plateau region.By using ArcGIS software and other statistical ways,factors such as the land use types,distance from village,and village position in the watershed had been analyzed.The results were as follows：1） the average road density of the watershed was 3.73km/km2,where that of arable land was 5.25km/km2,orchards was 4.59km/km2,forest land was 2.74km/km2.2） The smaller the distance of road from the village center,the higher the road density.Within the distance 0.5 km： the average road density was 4.67km/km2,where that of arable land was 5.40km/km2,orchards was 4.65km/km2,forest land was 4.03km/km2;Within the distance 1.0km： the average road density was 3.87km/km2,where that of arable land was 6.09km/km2,orchards was 5.10km/km2,forest land was 2.88km/km2.3） The rural road density depends firstly on the forest road density,and also on the village position,the village economic development,etc.The results could benefit on the rational rural roads allocation.

关 键 词：农村道路 土地利用类型 道路密度 黄土丘陵区 

分 类 号：S157.2[农业科学—土壤学]