沈阳绿地土壤特性研究

王菲

沈阳绿地土壤特性研究

王菲

沈阳市园林科学研究院

详细信息

作者简介:
王菲(1981-),女,硕士,高级工程师,从事园林养护研究。E-mail:470702641@qq.com

中图分类号: S731.2
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出版历程
- 收稿日期: 2021-03-07
- 刊出日期: 2021-06-09

Study on Soil Characteristics of Shenyang Urban Green Space

WANG Fei

Shenyang Academy of Landscape-Gardening

摘要

摘要: 了解人为活动对城市土壤的影响,采集了沈阳市8个区的重点街路行道树池、街边绿地、部分公园,不同深度的土壤,进行理化性质的分析。结果表明:沈阳市土壤pH中性偏碱,土壤板结程度较高,有机质含量偏低,盐分含量偏高,速效氮、速效钾含量适中,速效磷含量极低。和平区土壤pH、速效钾含量、电导率偏低;大东区+沈北区各项指标均较高;皇姑区土壤电导率偏低;沈河区+浑南区土壤速效钾含量、有机质含量偏低;铁西区+于洪区土壤速效磷含量、速效氮含量偏低。街路树池、分车道、街边绿地土壤各项指标相近,公园绿地各项指标与之相比差异较大。表明人为活动增加了城市土壤的紧适度和板结程度,造成城市土壤通透性的降低;同时土壤的盐碱程度增强,危害城市树木的生长。
- 土壤 /
- 理化性质 /
- 营养元素
Abstract: In order to understand the influence of human activities on urban soil,in this study,the soil of different depth was collected from the tree pool,roadside green space and some parks in 8 Districts of Shenyang City,and the physical and chemical properties were analyzed.The results showed that the pH of Shenyang soil was neutral and alkaline,the soil hardening degree was high,the content of organic matter was low,the content of salt was high,the content of available nitrogen and available potassium was moderate,and the content of available phosphorus was very low.The soil pH,available potassium content and electrical conductivity in Heping District were low;the indexes of Dadong District and Shenbei District were higher;the soil electrical conductivity in Huanggu District was low;the content of soil available potassium and organic matter in Shenhe District and Hunnan district were low;the contents of soil available phosphorus and nitrogen in Tiexi District and Yuhong District were lower.The soil indexes of street tree pool,lane and roadside green space were similar,but the indexes of park green space were quite different from them.In conclusion,human activities increased the compactness and hardening degree of urban soil,resulting in the decrease of urban soil permeability;at the same time,the degree of soil salinity was increased,which endangered the growth of urban trees.
- soil /
- physical and chemical properties /
- nutrient elements

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