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浙江大学学报（理学版）
浙江大学学报（理学版）  2018, Vol. 45 Issue (6): 748-755,764    DOI: 10.3785/j.issn.1008-9497.2018.06.017
生命科学     
生境片段化对千岛湖次生马尾松林土壤理化性质的影响
戎福仁1,2, 王祖华2, 吴初平3, 徐高福4, 徐建斌5, 李铭红1, 于明坚2
1. 浙江师范大学 生态研究所, 浙江 金华 321004;
2. 浙江大学 生命科学学院, 浙江 杭州 310058;
3. 浙江省林业科学研究院, 浙江 杭州 310023;
4. 淳安县新安江开发总公司, 浙江 淳安 311700;
5. 淳安县千岛湖林场, 浙江 淳安 311700
Effects of habitat fragmentation on soil properties of the secondary Masson pine (Pinus massoniana) forests of the Thousand Island Lake region
RONG Furen1,2, WANG Zuhua2, WU Chuping3, XU Gaofu4, XU Jianbin5, LI Minghong1, YU Mingjian2
1. Institute of Ecology, Zhejiang Normal University, Jinhua 321004, Zhejiang Province, China;
2. College of Life Sciences, Zhejiang University, Hangzhou 310058, China;
3. Zhejiang Forestry Academy, Hangzhou 310023, China;
4. Xin'an River Development Corporation, Chun'an 311700, Zhejiang Province, China;
5. Chun'an County Thousand Island Lake Forest Farm, Chun'an 311700, Zhejiang Province, China
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摘要： 土壤是森林生态系统的重要组成部分，对森林生物多样性和生态功能的维持具有不可替代的作用.据此，本研究以千岛湖地区大陆35个样方和29个不同大小和隔离度的陆桥岛屿次生马尾松林土壤为研究对象，分析了生境片段化对土壤理化性质的影响.研究发现，大陆马尾松林土壤厚度显著高于岛屿，而其土壤最大持水量显著低于岛屿；大陆土壤的全磷（P）显著低于岛屿，而土壤有效磷（AP）和硝态氮（NO3-N）显著高于岛屿.在片段化的岛屿生境中，土壤C、N、P、NO3-N、AP随与边缘距离的增大而降低；隔离度和地形对部分土壤理化因子有影响，而岛屿面积对土壤理化性质无影响.土壤理化因子和植物群落多样性存在显著相关性.生境片段化改变了千岛湖地区马尾松林的土壤条件，而边缘效应是影响片段化生境中土壤性质空间分布的主要过程之一.通过分析片段化景观中土壤理化性质的空间分布格局及其影响因素，深化了生境片段化对土壤条件影响的认识，对于片段化森林管理措施的制定具有重要意义.
关键词： 生境片段化;  次生林;  土壤;  边缘效应    
Abstract: Soil is an important part of the forest ecosystem, and plays a critical role in maintaining forest biodiversity and function. We investigated the spatial distributions of physical and chemical properties of the soil of the secondary Masson pine (Pinus massoniana) forests on mainland and 29 land-bridge islands in the Thousand Island Lake region, to explore the effects of habitat fragmentation on soil. It is found that soil thickness on mainland is higher than on islands, while its soil maximum water content is lower on mainland than on islands; Other facts include:soil total phosphorus(P) is lower on mainland than on islands; soil available phosphorus (AP) and nitrate (NO3-N) are higher on mainland than on islands. Among the islands, soil C, N, P, NO3-N and AP decrease with the distance from the edge of island; The isolation and geography of each island would affect soil property, while the island area has little impacts. Further, it exhibits significant correlations between the soil physical-chemical properties and the biodiversity of in site aboveground plant community. The results suggest that habitat fragmentation changes the soil conditions of Masson pine forests in the Thousand Island Lake region. Edge effect might be a major process that shapes the distribution of soil conditions. Understandings of the determinants of spatial distribution patterns of soil properties under habitat fragmentation are of great importance to the development of forest management plans for fragmented forests.
Key words: habitat fragmentation    secondary forest    soil    edge effect
收稿日期: 2017-12-28 出版日期: 2018-11-25
CLC:  Q948.1  
基金资助: 国家自然科学基金资助项目（31361123001，31570524）；浙江省科技计划项目（2015C02016）；浙江省自然科学基金资助项目（LY16C160003）.
通讯作者: 李铭红,ORCID:http://orcid.org/0000-0001-5070-3220,E-mail:sky82@zjnu.cn;于明坚,http://orcid.org/0000-0001-8060-8427,E-mail:fishmj@zju.edu.cn.     E-mail: sky82@zjnu.cn;fishmj@zju.edu.cn
作者简介: 戎福仁(1991-),ORCID:http://orcid.org/0000-0003-0782-7476,女,硕士研究生,主要从事植物生态学和生物多样性研究,E-mail:17855871697@163.com.
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引用本文:

戎福仁, 王祖华, 吴初平, 徐高福, 徐建斌, 李铭红, 于明坚. 生境片段化对千岛湖次生马尾松林土壤理化性质的影响[J]. 浙江大学学报（理学版）, 2018, 45(6): 748-755,764.

RONG Furen, WANG Zuhua, WU Chuping, XU Gaofu, XU Jianbin, LI Minghong, YU Mingjian. Effects of habitat fragmentation on soil properties of the secondary Masson pine (Pinus massoniana) forests of the Thousand Island Lake region. Journal of ZheJIang University(Science Edition), 2018, 45(6): 748-755,764.

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https://www.zjujournals.com/sci/CN/10.3785/j.issn.1008-9497.2018.06.017    或    https://www.zjujournals.com/sci/CN/Y2018/V45/I6/748

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