鄂西南亚热带常绿落叶阔叶混交林不同群落类型土壤特征分析

doi:10.11849/zrzyxb.20150744

自然资源学报 ›› 2016, Vol. 31 ›› Issue (7): 1173-1184.doi: 10.11849/zrzyxb.20150744

鄂西南亚热带常绿落叶阔叶混交林不同群落类型土壤特征分析

冯广¹, 艾训儒^{1*, *}, 臧润国^{2, 3}, 丁易^{2, 3}

1. 湖北民族学院林学园艺学院,湖北恩施 445000;
2. 中国林业科学研究院森林生态环境与保护研究所,国家林业局森林生态环境重点实验室,北京 100091;
3. 南京林业大学南方现代林业协同创新中心,南京 210037

收稿日期:2015-07-08 修回日期:2015-12-02 出版日期:2016-07-20 发布日期:2016-07-20
作者简介:冯广（1990- ）,男,湖北枝江人,硕士研究生,主要从事水土保持与荒漠化防治研究。E-mail:277126544@qq.com *通信艾训儒（1967- ）,男,湖北利川人,教授,主要从事森林生态与生物多样性保护研究。E-mail:hbmyaxru@163.com
基金资助:
湖北省林学重点（特色）学科及楚天学者计划项目（2013XKJS_10517）; 湖北省教育厅重点项目（D20122901）; 湖北民族学院研究生学位论文培优基金（PY201507）

Soil Characteristics under Different Community Types in the Subtropical Evergreen and Deciduous Broad-leaved Mixed Forest in Southwest Hubei

FENG Guang¹, AI Xun-ru¹, ZANG Run-guo^{2, 3}, DING Yi^{2, 3}

1. School of Forestry and Horticulture, Hubei University for Nationalities, Enshi 445000, China;
2. Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Key Laboratory of Forest Ecology and Environment of the State Forestry Administration, Beijing 100091, China;
3. Co-innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China

Received:2015-07-08 Revised:2015-12-02 Online:2016-07-20 Published:2016-07-20
Supported by:
Key Subject of Hubei Province and Chutian Scholars Program, No.2013XKJS_10517; Key Project of Hubei Provincial Department of Education, No.D20122901 ;Graduate Thesis Training Fund of Hubei University for Nationalities, No.PY201507

摘要/Abstract

摘要： 研究不同群落类型的土壤特征是了解植被-环境关系的基础,也是对生态系统进行科学管理的重要依据。论文以鄂西南两个自然保护区内亚热带常绿落叶阔叶混交林5个不同类型群落的土壤为对象,在测定10个理化指标的基础上,对不同群落类型的土壤特征及其差异性与相关性进行分析。结果表明：土壤含水量、孔隙度、全磷是影响鄂西南亚热带常绿落叶阔叶混交林土壤特征变异的主导因子。研究区土壤除了全磷和有效磷不足以外,其余养分含量均处于较高水平,和亚热带其他类型森林相比养分十分丰富。不同群落类型下土壤理化性质及其相关性均存在差异,与群落的组成和结构存在紧密的联系。

关键词: 多元统计, 群落类型, 群落生态学, 土壤理化性质差异性

Abstract: As an essential substrate for plant growth, soils under vegetation play important roles in regulating the composition and structure of plant communities, which inversely have great influences on the properties of soils. The evergreen and deciduous broad-leaved mixed forest is the most important vegetation type in subtropical mountain of southwest Hubei. It plays an irreplaceable role in maintaining the regional eco-environmental health. However, we know little about the features of the soil under this forest. In this paper, the characteristics of soils under five community types in the subtropical evergreen and deciduous broad-leaved mixed forest in southwest Hubei were analyzed. Based on measurements of 10 physical-chemical properties of soil samples from 92 permanent forest plots of five plant communities, we compared the characteristics and their variations among the soils under the five communities. Correlations among different soil factors under different communities were tested. The dominant factors and the overall qualities of soils under different communities were identified and assessed by using Principal Component Analysis. The result showed that: 1) The soil pH, organic matter, total nitrogen, total phosphorus, available nitrogen, available phosphorus under different communities varied significantly. 2) The dominant factors for determining the overall properties of soils across the subtropical evergreen and deciduous broad-leaved mixed forest in southwest Hubei were soil total nitrogen, soil moisture and soil total porosity. 3) The top three dominant factors for determining the overall properties of soils under each of the five communities ranked as follows: soil moisture, total porosity and density under community Ⅰ (Cyclobalanopsis glauca - Eurya alata + Camellia cuspidata); soil available kalium, total phosphorus and moisture under community Ⅱ(Carpinus fargesiana + Cyclobalanopsis glauca - Symplocos sumuntia); soil total porosity, pH and moisture under community Ⅲ(Carpinus fargesiana + Cyclobalanopsis glauca - Weigela japonica); soil total porosity, moisture and available kalium under community Ⅳ(Fagus lucida + Cyclobalanopsis multinervis-Eurya alata); and soil organic matter, total phosphorus and nitrogen under community Ⅴ(Carpinus fargesiana + Daphniphyllum macropodum + Lithocarpus cleistocarpus - Eurya alata). 4) The comprehensive quality for soils under the five communities ranked as: community Ⅰ> community Ⅲ> community Ⅳ> community Ⅱ> community Ⅴ. Our results indicated that soil nutrients content were higher under subtropical evergreen and deciduous broad-leaved mixed forest in southwest Hubei, except the soil total phosphorus and available phosphorus. The variation of soils among different communities might be caused by the composition and structure of the communities. More researches remain to be done on the mechanism of the circulation of materials and the mutual effect between soil and vegetation.

Key words: community ecology, community type, multivariate statistics, variation of soil chemical and physical property

中图分类号:

S714.5

冯广, 艾训儒, 臧润国, 丁易. 鄂西南亚热带常绿落叶阔叶混交林不同群落类型土壤特征分析[J]. 自然资源学报, 2016, 31(7): 1173-1184.

FENG Guang, AI Xun-ru, ZANG Run-guo, DING Yi. Soil Characteristics under Different Community Types in the Subtropical Evergreen and Deciduous Broad-leaved Mixed Forest in Southwest Hubei[J]. JOURNAL OF NATURAL RESOURCES, 2016, 31(7): 1173-1184.

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鄂西南亚热带常绿落叶阔叶混交林不同群落类型土壤特征分析

Soil Characteristics under Different Community Types in the Subtropical Evergreen and Deciduous Broad-leaved Mixed Forest in Southwest Hubei

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