建阳中心城区绿化用地土壤基本理化特征与肥力评价  

Basic Physical and Chemical Characteristics and Fertility Evaluation of Soil for Greening in the Central Urban Area of Jianyang

作　　者：陈建 李云锋 吴晨浩 CHEN Jian;LI Yun-feng;WU Chen-hao(Shanghai Municipal Engineering Design Science Research Institute Co.,Ltd.,Shanghai 200092,China;Fujian Provincial Key Laboratory of Eco Industrial Green Technology,College of Ecology and Resource Engineering,Wuyi University,Wuyishan 354300,China)

机构地区：[1]上海市政工程设计科学研究所有限公司,上海200092 [2]武夷学院生态与资源工程学院,福建省生态产业绿色技术重点实验室,福建武夷山354300

出　　处：《宜春学院学报》2024年第3期72-77,共6页Journal of Yichun University

基　　金：上海市政总院拂晓计划项目(编号:K2022N002A)。

摘　　要：土壤作为农耕生产的物质基础与养分载体,其肥力受到成土母质、地理环境、气候、农业耕作等因素影响。文中以建阳中心城区为对象,采集区域内61个不同绿化用地的土壤样品,测试pH、有机质(OM)、总氮(TN)、总磷(TP)和总钾(TK)五个养分指标,并展开肥力评价。结果表明,研究区绿化用地土壤整体为弱酸性,农业用地和商业绿化林带土壤OM均值达到中等肥力,而工业、道路、公园和居民绿化地肥力缺乏,草坪TOC含量最低;TN含量与OM分布类似,且草坪TN极缺乏;TP和TK总体上均表现为丰富以上水平。土壤综合肥力值的大小顺序为农业用地(1.70)>商业绿化林带(1.60)>道路绿化林带(1.20)>居民绿化林带(1.04)>公园绿化林带(1.01)>工业绿化林带(0.94)>草坪(0.73)。其中,草坪的综合肥力贫瘠,其它类型用地的综合肥力一般。因此,应该重视对研究区绿化用地的有机肥配施,并提升草坪的综合肥力水平。As the material foundation and nutrient carrier of agricultural production,soil fertility is also influenced by factors such as soil parent material,geographical environment,climate,and agricultural cultivation.The article takes the central urban area of Jianyang as the object,collects soil samples from 61 different green areas in the area,tests five nutrient indicators:pH,organic matter(OM),total nitrogen(TN),total phosphorus(TP),and total potassium(TK),and conducts fertility evaluation.The results showed that the overall soil of the green land in the study area was weakly acidic,with the average OM of agricultural and commercial green land reaching medium fertility.However,industrial,road,park,and residential green land lacked fertility,and the TOC content of grassland was the lowest.The distribution of TN content is similar to that of OM,and TN is extremely scarce in grasslands.Overall,both TP and TK exhibit a level of richness or above.The order of soil comprehensive fertility values is agriculture land(1.70)>commercial green space(1.60)>road green space(1.20)>residential green space(1.04)>park green space(1.01)>industrial green space(0.94)>grassland(0.73).The comprehensive fertility of grasslands is poor,while the comprehensive fertility of other types of land is average.Therefore,attention should be paid to the application of manure on the green land in the study area,and the comprehensive fertility level of grassland should be improved.

关 键 词：土壤养分肥力 内梅罗指数 主成分分析 建阳区 

分 类 号：S152.3[农业科学—土壤学]