JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2012, Vol. 36 ›› Issue (03): 64-68.doi: 10.3969/j.jssn.1000-2006.2012.03.014

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

WU Chuansheng1,2,3,4,SHA Liqing1,2,4*,GAO Jianmei1,2,3,DONG Liyuan1,2,3   

  1. 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

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.

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