西北林学院学报2011，Vol.26Issue(2)：42-46,51,6.
京北地区公路绿化带土壤养分特征研究
Soil Nutrient Characteristics of Roadside Greenbelts in Northern Beijing
摘要
Abstract
In order to understand the urban soil fertility quality and to serve soil health management, soil particle and nutrient contents in 0-10 cm layer near the different ring road greenbelts located Northern Beijing were analyzed.The results showed that sand content was as high as 71.74 ％, while clay content was only 4.05 ％, the soil texture types mainly belong to sand, loamy sand and sandy loam; soil pH values were from 8.01 to 8.97 and belonged to slightly alkaline or alkaline soil.The average contraents of soil organic matter, soil total nitrogen, soil available phosphorus and available potassium were 19.81 g · kg-1 ,0.81 g · kg-1 29.16 mg · kg-1 and 252.22 mg · kg-1 , respectively.The variation degrees of soil nutrient contents were different.The order of the coefficient of variation was available phosphorus＞potassium＞ NH4+ ＞ NO3-＞ total nitrogen＞ total phosphorus ＞ total potassium.On the other hand, the differences between contents of soil nutrients in different road greenhelts was significant.In the North Second Ring Road greenbelts, the soil nutrient contents reached the maximum value except soil potassium content.In general the soil nutrient contents decreased from downtown to suburb.The concentration of total nitrogen, available phosphorus and total potassium in grassland soil were significantly higher than those in the open soil.关键词
公路绿化带/土壤颗粒组成/土壤养分/草地/空地分类
农业科技引用本文复制引用
陆桂红,施鹏程,耿玉清,吴京科..京北地区公路绿化带土壤养分特征研究[J].西北林学院学报,2011,26(2):42-46,51,6.基金项目
北京宜居城市绿化体系建设关键技术研究与示范(Z00060660000702) （Z00060660000702）
国家大学生创新性实验计划项目(GCS08036). （GCS08036）
