兰州市城关区主要行道树土壤养分测定及其含养状况比较分析  

Measurement and Comparative Analysis of Soil Nutrient Content of Street Tree in Chengguan District of Lanzhou City

作　　者：许宏刚 程晓月 张建旗 黄蓉 吴永华 

机构地区：[1]兰州市园林科学研究所,甘肃兰州730070

出　　处：《甘肃林业科技》2017年第3期32-36,42,共6页Journal of Gansu Forestry Science and Technology

基　　金：兰州市科技攻关计划(2015-3-40)

摘　　要：本文以兰州市城关区主要行道树土壤为研究对象,对其养分进行测定和分析。结果表明,国槐和雪松土壤速效磷含量较低;土壤速效钾含量总体较高;国槐和法桐土壤有机质处于中等和缺乏,其他树种较为丰富;水解氮含量除银杏处于中等水平外,其他树种均处于缺乏或极缺乏状况;土壤pH较高,为碱性土壤。兰州市城关区主要行道树缺乏养分,需在不同季节合理施肥,保证其生长旺盛。In this paper, the soil of main street tree in Chengguan district of Lanzhou city as study object, and its nutrient was determined and analyzed. The results showed that： The content of available phosphorus was low in Sophora japonica and Cedrus deodara; available potassium of soil content is higher in all the tree species; the soil organic matter is in the middle level and the lack respectively in Sophora japonica and Platanus orientalis, others are more abundant; the soil hydrolysable nitrogen content is at middle level of Ginkgo biloba, and soil content of other tree species are deficient or very deficient; soil pH is higher and belongs to alkaline soil. The main street tree is lack of nutrients in Chengguan district of Lanzhou city, and it needs to be fertilized properly in different seasons to ensure its vigorous growth.

关 键 词：行道树 土壤PH 水解氮 速效磷 速效钾 

分 类 号：S153.6[农业科学—土壤学]