摘要
为探讨我国城市绿地土壤肥力质量特征,通过收集国内32个大中城市绿地土壤理化指标数据,采用描述性分析和评价分析方法,初步确定我国城市绿地土壤肥力质量格局。结果表明,各指标平均赋存量中,土壤pH值以偏碱性为主;容重较大,有机质处于中等偏低水平,全氮、碱解氮处于较低水平,全磷、全钾、有效磷、速效钾等处于中等偏高水平。Nemerrow指数表明,32个城市绿地土壤肥力质量均为一般及以下水平,碱解氮、全氮、有效磷等是制约大多数城市绿地土壤肥力质量的限制因子。一线城市绿地土壤肥力质量略高于其它城市,南方城市略高于北方城市。
The description analysis, assessment analysis were conducted to determine the contamination pattern of soil fertility quality in Chinese urban green space soils based from 32 cities. The results showed that the average contents of pH value in Chinese urban green space were dominated by slightly alkaline. Soil bulk density was high, Soil organic matter was medium or low medium. Total N, alkali-hydrolyzable N was low. Total P, total K, available P and available K was medium or over medium. According to Nemerrow index, the soil fertility quality of 32 cities was medium. Total N, al kali - hydrolysable N and available P are limiting factors of soil fertility quality in most urban green space. The quality of soil fertility in the green space of the first tier cities is slightly higher than that of other cities, and the southern cities are slightly higher than the northern cities.
作者
张明
潘国林
张宗应
周静波
ZHANG Ming;PAN Guolin;ZHANG Zongying;ZHOU Jingbo(Department of Resources and Environmental Engineering, Anhui Vocational and Technical College of Forestry, Hefei 230031 , China;School of Resources and Environmental Engineering,Hefei University of Technology, Hefei 230009, China;Public Geological Survey Management Center of Anhui Province, Hefei 230009, China)
出处
《内蒙古农业大学学报（自然科学版）》
CAS
北大核心
2019年第3期46-51,共6页
Journal of Inner Mongolia Agricultural University(Natural Science Edition)
基金
2018年度安徽省高校自然科学研究重点项目(KJ2018A0917)
关键词
城市绿地
土壤肥力质量
综合评价
Urban green space
soil fertility quality
comprehensive evaluation
