摘要
为改善北京道路绿带银杏的土壤质量,提升银杏路绿化景观效果。本研究以北京市6条两侧分车道路绿带、5条行道树道路绿带和7条路侧道路绿带银杏土壤为研究对象,对其土壤常规6项进行检测分析,并采用改进的内梅罗指数法,对土壤肥力进行综合评价。北京道路绿带银杏土壤的有机质、碱解氮、有效磷、速效钾和全盐含量及pH均值分别为19.9 g/kg、103.6 mg/kg、18.9 mg/kg、136.1 mg/kg、0.96 g/kg和8.46,有机质和碱解氮含量相对缺乏,pH偏高。路侧道路绿带银杏土壤综合肥力系数最优,为1.02,属于一般水平,其他两类道路绿带银杏土壤均属于贫瘠水平。北京道路绿带银杏土壤应通过重点增施酸性有机肥,适当补充磷钾肥和人为调控来改善其肥力。
In order to improve the soil quality of Ginkgo biloba in road greenbelts of Beijing and enhance the greening landscape effect of Ginkgo biloba road.In this study,taking Ginkgo biloba soils of 6 side-by-side sub-car,5 street tree and 7 road side road greenbelts of Beijing as material,six soil routine items were detected and analyzed.In addition,comprehensive evaluation of soil fertility was carried out by improved Nemero index.The average contents of Ginkgo biloba soil organic matter,alkali-hydrolyzed nitrogen,available phosphorus,available potassium,total salt and pH in road greenbelts of Beijing were 19.9 g/kg,103.6 mg/kg,18.9mg/kg,136.1 mg/kg,0.96 g/kg and 8.46 respectively.The results showed that the contents of organic matter and alkali-hydrolyzed nitrogen were relatively short and the pH was high.The comprehensive fertility coefficient of road side greenbelt was the best at 1.02,belonging to the general level,and the other two types of greenbelt belonged to the barren level.The soil fertility of Ginkgo biloba in road greenbelts of Beijing can be improved by focus on increasing acidic organic fertilizer,supplementing phosphorus and potassium fertilizer appropriately and artificial regulation.
作者
高发明
于祥民
袁学文
GAO Faming;YU Xiangmin;YUAN Xuewen(Beijing Jindu Landscaping&Afforesting CO.,LTD,Beijing 100140,China)
出处
《山东林业科技》
2022年第4期77-80,88,共5页
Journal of Shandong Forestry Science and Technology
关键词
道路绿带
两侧分车
行道树
路侧
银杏
土壤肥力评价
road greenbelt
side-by-side sub-car
street tree
road side
Ginkgo biloba
evaluation of soil fertility
