[J].HEILONGJIANG AGRICULTURAL SCIENCES,2021,(06):37-41.[doi:10.11942/j.issn1002-2767.2021.06.0037]
沈阳绿地土壤特性研究
- 文献标志码:
- A
- 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。
参考文献/References:
[1]陈清硕.城市土壤的概念及其研究意义[J].南京农专学报,1999(2):47-52.
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备注/Memo
收稿日期:2021-03-08