上海环城林带不同植物群落土壤质量综合评价

张凯旋; 商侃侃; 达良俊

doi:10.3969/j.issn.1000-2006.2015.03.014

张凯旋,商侃侃,达良俊

南京林业大学学报（自然科学版） ›› 2015, Vol. 39 ›› Issue (03) : 71-77.

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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*

作者信息 +

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

ZHANG Kaixuan¹, SHANG Kankan², DA Liangjun^3*

Author information +

文章历史 +

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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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(03): 71-77 https://doi.org/10.3969/j.issn.1000-2006.2015.03.014

ZHANG Kaixuan, SHANG Kankan, DA Liangjun. Soil quality comprehensive assessment of different plant communities in Shanghai green belt[J]. JOURNAL OF NANJING FORESTRY UNIVERSITY. 2015, 39(03): 71-77 https://doi.org/10.3969/j.issn.1000-2006.2015.03.014

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基金

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.