呼和浩特市废弃地景观重塑对土壤理化性质的影响

Effects of Landscape Remodeling on Soil Physical and Chemical Properties in Hohhot Abandoned Land

本研究以呼和浩特地区废弃地改建的成吉思汗公园、湿地公园、北山公园为研究对象,测定3座公园在废弃地景观重塑后土壤理化特性,为呼市地区废弃地的利用提供参考。研究表明,土壤全氮和速效氮变化规律均为南湖湿地公园>CK>成吉思汗公园南区>北山公园>成吉思汗公园北区;南湖湿地公园的有效磷、全钾和速效钾含量在几个处理中最低。根据《绿化种植土壤》中对土壤肥力和重金属含量的技术要求,3座公园均应增加土壤中的锌含量;同时,3座公园重金属含量均达到绿化种植标准,重金属污染不是废弃地生态恢复的限制因子。

In this study,the Genghis Khan Park,Wetland Park and Beishan Park reconstructed from the abandoned land in Hohhot were taken as the research objects,and the soil physical and chemical properties of the three parks after the landscape remodeling of the abandoned land were determined,so as to provide reference for the utilization of the abandoned land in Hohhot.The results showed that the variation of soil total nitrogen and available nitrogen was Nanhu Wetland Park>CK>South Genghis Khan Park>Beishan Park>North Genghis Khan Park.The contents of available phosphorus,total potassium and available potassium in Nanhu Wetland Park were the lowest in several treatments.According to the technical requirements of soil fertility and heavy metal content in Green Planting Soil,the three parks should increase the zinc content in the soil;at the same time,the heavy metal content of the three parks reached the greening planting standard,and the heavy metal pollution was not the limiting factor for the ecological restoration of the abandoned land.