南京林业大学学报(自然科学版) ›› 2015, Vol. 39 ›› Issue (03): 71-77.doi: 10.3969/j.issn.1000-2006.2015.03.014

• 研究论文 • 上一篇    下一篇

上海环城林带不同植物群落土壤质量综合评价

张凯旋1,商侃侃2,达良俊3*   

  1. 1.上海商学院旅游与食品学院,上海 201400;
    2 上海辰山植物园,上海 201602;
    3.上海市城市化生态过程与生态恢复重点实验室,华东师范大学生态与环境科学学院,上海 200062
  • 出版日期:2015-05-30 发布日期:2015-05-30
  • 基金资助:
    收稿日期:2014-04-20 修回日期:2014-09-10
    基金项目:国家自然科学基金青年科学基金项目(31400606); 上海市教育委员会科研创新项目(13YZ142)
    第一作者:张凯旋,副教授,博士。*通信作者:达良俊,教授。E-mail: ljda@des.ecnu.edu.cn。
    引文格式:张凯旋,商侃侃,达良俊. 上海环城林带不同植物群落土壤质量综合评价[J]. 南京林业大学学报:自然科学版,2015,39(3):71-77.

Soil quality comprehensive assessment of different plant communities in Shanghai green belt

ZHANG Kaixuan1, SHANG Kankan2, DA Liangjun3*   

  1. 1. Department of Tourism and Food, Shanghai Business College, Shanghai 201400, China;
    2. Shanghai Chenshan Botanical Garden, Shanghai 201602, China;
    3. Shanghai Key Laboratory for Ecology of Urbanization Process and Eco-restoration, College of Ecological and Environmental Sciences, East China Normal University, Shanghai 200062,China
  • Online:2015-05-30 Published:2015-05-30

摘要: 为探讨不同类型植物群落改良土壤的功能差异,进而为城市森林的群落构建与管理提供科学依据,以上海环城林带7种典型植物群落为对象,以裸地为对照,分层测定了土壤的密度、毛管孔隙度、总孔隙度、有机质、全氮、全磷、铵氮和硝氮等8个理化指标,并采用主成分分析法进行各群落类型间土壤质量的综合评价。结果表明:植物群落对土壤的改良作用主要表现在土壤表层(0~20 cm),不同植物群落改良土壤理化性质的效果存在差异,落叶阔叶林悬铃木群落和落叶针叶林池杉群落的土壤质量指数较高,而落叶阔叶林全缘叶栾树群落的最低,其他类型群落的居中,不同植被类型间并没有表现出明显的规律性。可见,减少人为管护有利于枯枝落叶层的积累及林下草本和幼苗的更新,可以促进土壤质量的综合改善。

Abstract: To explore the soil improvement service of plant communities, and provide a scientific basis for urban forest planning and management, soil samples were collected from seven plant communities in Shanghai green belt with bare lands as the control. Eight soil physical and chemical indicators were measured in different soil depth, including soil bulk density, capillary porosity, total porosity, organic matter, total N, total P, NH+4-N and NO-3-N. Principal component analysis was used to assess the comprehensive soil quality based on those indicators. Results showed that soil improvements were mainly on the surface of soil(0-20 cm), with different soil improvement effects of each plant communities. Deciduous broad leaved forest with Platanus×hispanica as dominate species and deciduous coniferous forest with Taxodium distichum var. imbricarium as dominate species had the greatest improvement effect, deciduous broad-leaved forest with Koelreuteria bipinnata var. integrifoliola as dominate species had the least improvement effect, and the other communities were in the middle level. Lower-intense-management was helpful to litter layer accumulating, and facilitate the recruitment of understory seedlings and herbs, which could contribute to the overall improvement of soil quality.

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