摘要
对衡水市6个公园采集的54个土壤样品进行了测定,包括土壤的容质量、p H值、总氮的质量分数、总磷的质量分数及有机质的质量分数等5项肥力指标。运用主成分分析法提取出累计贡献率大于85%的3项主成分,计算其综合得分。以此为依据,采用聚类分析法将54个土壤样品分为4个肥力等级。结果表明:怡水公园绿地土壤属于1级土壤,为高肥力类型,各项肥力指标最适宜,综合得分为0.43;青年公园、河东公园和滏阳生态文化公园属于2级土壤,为较高肥力类型,综合得分在-0.06～0.10之间;人民公园和中华公园属于3级土壤,为中等肥力土壤类型,各项肥力指标适宜性中等,综合得分处于-0.29～-0.09之间。综上可知,衡水市公园绿地土壤肥力情况差异较大。针对衡水市公园绿地土壤肥力情况提出了加强和完善衡水市公园绿地土壤合理利用的管理建议。
54 soil samples collected from six parks in Hengshui City were measured in this paper, including five fertility indexes like soil capacity, soil pH, soil total nitrogen, soil total phosphorus and soil organic content. Three principal components with accumulative contribution rate over 85% of five soil fertility indexes were extracted. Using the method of principal components analysis, comprehensive scores were also obtained. 54 soil samples were divided into 4 soil ranks by inter cluster analysis. Green soil of Yishui Park was Bank 1 fertility-richest samples with general scores of 0.43 and occupied the position of the highest soil status fertility ; Youth Park, Hedong and Fuyanghe eco-Park were Bank 2 fertility-richer samples with the general score range of -0.06 - 0.10 ; People＇ s Park and Zhonghua Park were Bank 3 fertility type, the comprehensive score range was - 0.29 - - 0.09 and occupied the position of the lowest soil fertility status. In summary, soil fertil- ity of green land in Urban park had large difference, According to soil fertility condition of park green space, some management suggestions were given to strengthen and improve the rational utilization of soil.
作者
孙世卫
张宁
陈迪
SUN Shiwei;ZHANG Ning;CHEN Di(College of Life Science,Hengshui University,Hengshui Hebei,053000,China)
出处
《河北科技师范学院学报》
CAS
2018年第3期53-58,共6页
Journal of Hebei Normal University of Science & Technology
关键词
公园绿地
土壤肥力
综合评价
衡水市
park green land
soil fertility
comprehensive evaluation
management measures
