哀牢山中山湿性常绿阔叶林与人工茶园土壤呼吸的季节变化

doi:10.3969/j.jssn.1000-2006.2012.03.014

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南京林业大学学报（自然科学版） ›› 2012, Vol. 36 ›› Issue (03): 64-68.doi: 10.3969/j.jssn.1000-2006.2012.03.014

哀牢山中山湿性常绿阔叶林与人工茶园土壤呼吸的季节变化

武传胜^1,2,3,4,沙丽清^1,2,4*,高建梅^1,2,3,董丽媛^1,2,3

1.中国科学院西双版纳热带森林生态学重点实验室,云南勐腊 666303; 2.中国科学院西双版纳热带植物园昆明分部,云南昆明 650223; 3.中国科学院研究生院,北京 100049; 4. 云南哀牢山亚热带森林生态系统研究站,云南景东 676209

出版日期:2012-05-30 发布日期:2012-05-30
基金资助:
收稿日期:2011-02-17 修回日期:2011-08-29 基金项目:国家重点基础研究发展计划(2010CB833501); 中国科学院知识创新工程重要方向项目(KZCX2-YW-Q1-05-04) 第一作者:武传胜,硕士。*通信作者:沙丽清,副研究员。E-mail:shalq@xtbg.ac.cn。引文格式:武传胜,沙丽清,高建梅,等. 哀牢山中山湿性常绿阔叶林与人工茶园土壤呼吸的季节变化[J]. 南京林业大学学报:自然科学版,2012,36(3):64-68.

Analysis of soil respiration in a montane evergreen broad-leaved forest and an artificial tea garden in Ailao Mountains, Yunnan province

WU Chuansheng^1,2,3,4,SHA Liqing^1,2,4*,GAO Jianmei^1,2,3,DONG Liyuan^1,2,3

1.Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla 666303,China; 2.Xishuangbanna Tropical Botanical Gardon, Chinese Academy of Sciences, Kunming 650223,China; 3.Graduate University of Chinese Academy of Sciences, Beijing 100049,China; 4.Ailaoshan Station for Subtropical Forest Ecosystem Studies, Jingdong 676209,China

Online:2012-05-30 Published:2012-05-30

摘要/Abstract

摘要： 利用Li-840 CO₂气体分析仪,测定并分析了哀牢山中山湿性阔叶林和具有30 a历史的茶园的土壤呼吸季节变化特征。结果发现:在干季,土壤呼吸速率表现为茶园显著大于阔叶林,而在湿季,茶园略小于阔叶林,从全年结果看茶园略大于阔叶林; 茶园的土壤温度和土壤含水量均显著大于阔叶林; 通过土壤温度和土壤水分的双因子模型,得到土壤温度和土壤水分对茶园和阔叶林的土壤呼吸变化解释率分别为49.6%和70.7%; 土壤呼吸的温度敏感性表现为茶园小于阔叶林; 茶园土壤有机质碳、氮量显著小于阔叶林,而在土壤质量密度、pH、磷和钾含量方面,则茶园显著大于阔叶林。

Abstract: By studying on soil respiration and its influence factors in a montane evergreen broad-leaved forest and a 30-year-old tea garden in Ailao Mountains, Yunnan, SW China. We obtained the following results as: in dry season, soil respiration was significantly greater in tea garden than that in evergreen broad-leaved forest. However, soil respiration in tea garden was slightly less than in evergreen broad-leaved forest in wet season; The total data in 2010 showed that soil respiration was slightly higher in tea garden than in evergreen broad-leaved forest during the whole year, soil temperature and soil water content of the tea garden was significantly greater than those in evergreen broad-leaved forest. the two-factor model analysis of soil temperature and soil water, showed that soil temperature and soil water were responsible for 49.6% and 70.7% of soil respiration variation in tea garden and in forest, respectively. The temperature sensitivity of soil respiration in the forest was significantly higher than that in tea garden. Soil organic carbon and nitrogen were significantly higher in forest than those in the tea garden; however, soil bulk density, pH value, phosphorus and potassium in the broad-leaved forest were less than those in the tea garden.

中图分类号:

S718.5

武传胜,沙丽清,高建梅,等. 哀牢山中山湿性常绿阔叶林与人工茶园土壤呼吸的季节变化[J]. 南京林业大学学报（自然科学版）, 2012, 36(03): 64-68.

WU Chuansheng,SHA Liqing,GAO Jianmei,DONG Liyuan. Analysis of soil respiration in a montane evergreen broad-leaved forest and an artificial tea garden in Ailao Mountains, Yunnan province[J].Journal of Nanjing Forestry University (Natural Science Edition), 2012, 36(03): 64-68.DOI: 10.3969/j.jssn.1000-2006.2012.03.014.

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哀牢山中山湿性常绿阔叶林与人工茶园土壤呼吸的季节变化

Analysis of soil respiration in a montane evergreen broad-leaved forest and an artificial tea garden in Ailao Mountains, Yunnan province

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