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[1]WANG Jin-ye,LI Hai-fang,DUAN Wen-jun,et al.Research on Rainfall Characteristics Through Typical Forest Community in Upper Reaches of Lijiang River[J].Research of Soil and Water Conservation,2012,19(01):56-59.

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Research on Rainfall Characteristics Through Typical Forest Community in Upper Reaches of Lijiang River

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 19 Number of periods: 2012 01 Page number: 56-59 Column: Public date: 2012-02-20

Title:: Research on Rainfall Characteristics Through Typical Forest Community in Upper Reaches of Lijiang River

Author(s):: WANG Jin-ye¹, LI Hai-fang¹, DUAN Wen-jun¹, TANG Dong-ming², WANG Shao-neng², LIU Xing-wei¹, HUANG Hua-qian¹; 1. College of Tourism, Guilin University of Technology, Guilin, Guangxi 541004, China;
2. Mao’ershan National Nature Reserve, Xing’an, Guangxi 541316, China

Keywords:: canopy interception; throughfall; forest community; Lijiang River

CLC:: S715

DOI:: -

Abstract:: From 2009 to 2011, a typical forest community of Schima superba was monitored and the interception effect of tree canopy on precipitation was analyzed in upper reaches of Lijiang River. The results showed that the precipitation distribution of the year was irregular and the rainfall mainly happened in rainy season, which accounted for 82.39% of the total, while only 17.61% was distributed in dry season. It seemed that 2011 was a dry year, but the precipitation with an average annual value was higher than the last few years, and the precipitation mostly occurred from May to June (63.59%). The largest rainfall was 319.8 mm in 16 hours and rainfall intensity was 20.0 mm/h. Furthermore, the single rainfall(>50 mm) during the study period which accounted for 65.25% of total precipitation. The throughfall was positively correlated with precipitation outside, but the relationship between canopy interception rate and precipitation outside was complex. The coefficient of variation (C_V) was 39.81%, when rainfall was less than 2.50 mm/h, while the C_V was 5.64% when rainfall was more than 8.00 mm/h. This research has provided the scientific basis for understanding forest hydrological functions and developing water resources allocation strategy as well as improving water conservation forest management practice in this area.

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