上海动物园天鹅湖区域绿地土壤质量特征研究  

Soil quality characteristics of green space in Swan Lake area of Shanghai Zoo

作　　者：杨娜 马想 李爽 梁晶 YANG Na;MA Xiang;LI Shuang;LIANG Jing(Shanghai Academy of Landscape Architecture Science and Planning,Shanghai 200232,China;Shanghai Engineering Research Center of Landscaping on Challenging Urban Sites,Shanghai 200232,China;Shanghai Zoo,Shanghai 200050,China)

机构地区：[1]上海市园林科学规划研究院,上海200232 [2]上海城市困难立地绿化工程技术研究中心,上海200232 [3]上海动物园,上海200050

出　　处：《上海农业学报》2025年第1期58-65,共8页Acta Agriculturae Shanghai

基　　金：上海市科委科技创新行动计划(21DZ1209403)。

摘　　要：以上海动物园天鹅湖区域绿地土壤为研究对象,分别对该区域0—30 cm、30—60 cm和60—90 cm土层深度的土壤进行采样,分析土壤理化性质,并采用改进的内梅罗综合指数法进行土壤肥力指标综合评价。结果表明:天鹅湖区域绿化土壤p H较高,42.3%的采样点位为碱性土壤;土壤水溶性盐分含量相对较低,均值仅为0.115 m S∕cm;部分区域有机质含量偏低,19.2%的土壤样品低于《绿化种植土壤》(CJ∕T 340—2016)的标准要求;除有效硫外,土壤水解性氮、有效磷、速效钾、有效铁、有效镁含量适中;土壤质地以粉黏壤土为主,占比达50.00%;土壤紧实度适中,仅有1个点位密度大于1.35 Mg∕m^(3);土壤非毛管孔隙度、毛管孔隙度和总孔隙度均较低。不同土层深度的土壤理化性质存在一定差异,主要体现为表层土壤有机质、水解性氮、有效磷、有效镁、有效铁和速效钾含量均高于下层土壤。天鹅湖区域内约23.08%的点位土壤肥力综合指数小于0.9,为“贫瘠”;约76.92%的点位土壤肥力综合指数为0.9—1.8,土壤质量属于“中等”。限制土壤质量提升的因子主要为p H、有效硫及孔隙度,建议采用改善土壤物理结构和施用中、微量元素肥料等措施提高土壤质量。研究结果可为上海动物园天鹅湖区域土壤质量提升方案制定提供数据支持,对绿地生态系统可持续发展具有指导意义。This study focused on the soil in the green space of the Swan Lake area at Shanghai Zoo.Soil samples were collected from three depths:0—30 cm,30—60 cm,and 60—90 cm,and the physicochemical properties of the soil were analyzed.The improved Nemeiro comprehensive index method was employed to evaluate soil fertility indicators.The results indicated that the pH soil in the Swan Lake area was relatively high,with 42.3% of the sampling points showing alkaline soil conditions.The soil water-soluble salt content was relatively low,with an average of only 0.115 m S∕cm.Organic matter content was also low in some areas,with19.2% of the soil samples falling below the standards set by thePlanting soil for greening(CJ∕T 340—2016).Except for available sulfur,the content of soil hydrolyzable nitrogen,available phosphorus,available potassium,available iron,and available magnesium was moderate.The soil texture was predominantly silty loam,accounting for 50.00% of the samples.Soil compaction was moderate,with only one sampling point showing a bulk density greater than 1.35 Mg∕m~3.Additionally,all sampling points exhibited low non-capillary porosity,capillary porosity,and total porosity.Notably,differences in the physicochemical properties of the soil were observed across the different depths,with surface soils having higher levels of organic matter,hydrolyzable nitrogen,available phosphorus,available magnesium,available iron,and available potassium compared to deeper layers.Approximately 23.08% of the soil samples in the Swan Lake area had a comprehensive soil fertility index below0.9,indicating “poor” fertility,while 76.92% of the samples had an index ranging from 0.9 to 1.8,classifying the soil quality as “medium”.The main factors limiting the improvement of soil quality were p H,available sulfur content,and porosity.To enhance soil quality,it is recommended to improve the soil,s physical structure and apply micronutrient fertilizers.The findings of this study provide valuable data to support the development o

关 键 词：绿地土壤 理化性质 土层 肥力综合评价 

分 类 号：S158.3[农业科学—土壤学]