上海市公园绿地土壤肥力特征分析与综合评价
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作者单位:

(1.上海海洋大学食品学院,上海 200120;2.上海市园林科学规划研究院,上海 200030;3.中国科学院城市环境研究所,福建 厦门 361021)

作者简介:

骆玉珍(1993-),女,河南商丘人,硕士研究生,主要研究方向为土壤生态学。E-mail:luoyz357@163.com。

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基金项目:

基金项目:上海典型绿地土壤质量监测保障体系(上海市绿化和市容管理局)。


Analysis and comprehensive evaluation of soil fertility characteristics for the urban park in Shanghai
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Affiliation:

(1.Collegeof Food Science and Technology,Shanghai Ocean University,Shanghai200120;2.Shanghai Academy of LandscapeArchitecture Science andPlanning,Shanghai200030;3.Institute of UrbanEnvironment,Chinese Academy ofSciences,Xiamen Fujian361021)

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    摘要:

    为提高城市绿地生态系统功能,了解上海全市的公园绿地土壤肥力整体状况,以上海全市 16个行政区 65个公园中 87个绿地土壤(0~ 20 cm)为研究对象,测定土壤 pH值、电导率(EC)、大量元素(氮、磷、钾)、中微量元素(镁、钙、硫、锰、铁和钼)等 15项化学指标,通过单因子评价、综合评价法及 GIS技术对公园绿地土壤肥力质量进行评价。结果表明,上海市公园绿地表层土壤整体呈碱性,EC值偏小,有机质、大量元素全量养分和速效养分大都处于中等水平,微量元素钼缺乏,其他元素含量充足;全氮和有效磷变异性强。上海市公园绿地土壤综合肥力质量整体呈中等水平,且空间上有北高南低的趋势;土壤肥力的限制因子主要为 pH值、全氮、碱解氮、有效磷和有效钼,应采用改善土壤 pH值、种植豆科植物、施用微肥等措施提高土壤肥力质量。

    Abstract:

    87 soilsamples(0~ 20cm)from 65 urban parks were collected in 16 districts of Shanghai in order to improve the eco-function of urban green space system and find out the soil fertility status of green space in Shanghai park. In thisstudy,15 chemical indexes were selected,and soil fertility characteristics were evaluated by single factorevaluation,comprehensiveevaluation andGIS.The results showed that the pH value of Shanghai park green space topsoil was alkaline and the electricalconductivity(EC)was relativelylow.The content of organicmatter,total nutrient and available nutrient was mainly at themediumlevel.The available molybdenum was lack in most parksoils.The contents ofpotassium,calcium,magnesium,sulfur,iron,and manganese were sufficient.Total nitrogen and available phosphorus showed strongly variable.The Integrated FertilityIndex(IFI)of Shanghai park green space was at middle level and showed a trend of gradualimprovement from south tonorth.The soil limiting factors werepH,total and available nitrogen,availablephosphorus,and availablemolybdenum.Measures such as improving soilpH,cultivating leguminous plant and applying micronutrient fertilizer should be adopted to improve soil fertility quality.

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骆玉珍,张维维,李雅颖,姚槐应,王永杰,韩继刚.上海市公园绿地土壤肥力特征分析与综合评价[J].中国土壤与肥料,2019,(6):86-93.

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  • 收稿日期:2018-12-25
  • 最后修改日期:
  • 录用日期:2019-01-19
  • 在线发布日期: 2019-12-25
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