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Water input from fog drip in the tropical seasonal rain forest of Xishuangbanna, South-West China

Published online by Cambridge University Press:  09 August 2004

Wenjie Liu ,
Fan-Rui Meng ,
Yiping Zhang ,
Yuhong Liu  and
Hongmei Li
Wenjie Liu
Affiliation:
Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Yunnan 666303, P. R. China Research Centre for Eco-environmental Sciences, Chinese Academy of Sciences, Beijing 100085, P. R. China
Fan-Rui Meng
Affiliation:
Faculty of Forestry and Environmental Management, University of New Brunswick, Fredericton, N.B. Canada E3B 6C2
Yiping Zhang
Affiliation:
Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Yunnan 666303, P. R. China
Yuhong Liu
Affiliation:
Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Yunnan 666303, P. R. China
Hongmei Li
Affiliation:
Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Yunnan 666303, P. R. China
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Abstract

Fog drip and related microclimatic factors were measured between January 1999 and December 2002 at a tropical seasonal rain forest in Xishuangbanna, South-West China. During the study period, the annual average fog drip was 89.4±13.5 mm (mean±1 SD). Fog drip contributes an estimated 5% of the annual rainfall, with 86% of the fog drip occurring in the dry season (November–April). Annual fog drip was negatively correlated with annual rainfall. Monthly variation in fog drip was also negatively correlated with monthly rainfall. Average daily fog drip was 0.38±0.27 mm d−1 for all days on which fog drip occurred. Daily fog drip was negatively correlated with minimum air temperature and positively correlated with mean above-canopy wind speed. The results indicate that fog drip is an important additional input of water to this seasonal rain forest during the dry season.

Keywords

Fog dripforest hydrologyradiation fogtropical seasonal rain forest
Type
Research Article
Information
Journal of Tropical Ecology , Volume 20 , Issue 5 , September 2004 , pp. 517 - 524
Copyright
2004 Cambridge University Press

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