漓江上游森林小流域径流过程及其影响因素

doi:10.11707/j.1001-7488.20130621

林业科学 ›› 2013, Vol. 49 ›› Issue (6): 149-153.doi: 10.11707/j.1001-7488.20130621

漓江上游森林小流域径流过程及其影响因素

王金叶¹, 李海防¹, 段文军¹, 唐东明², 王绍能², 刘兴伟¹, 黄华乾¹

1. 桂林理工大学旅游学院桂林 541004;
2. 猫儿山国家级自然保护区管理局兴安 541316

收稿日期:2012-07-03 修回日期:2013-05-15 出版日期:2013-06-25 发布日期:2013-07-16
通讯作者: 李海防
基金资助:
国家自然科学基金项目(30860058); 国家科技支撑计划课题(2012BAC16B04); 广西科技攻关项目(桂科攻1298006)。

Runoff Processes and the Influencing Factors in a Small Forested Watershed of Upper Reaches of Lijiang River

Wang Jinye¹, Li Haifang¹, Duan Wenjun¹, Tang Dongming², Wang Shaoneng², Liu Xingwei¹, Huang Huaqian¹

1. College of Tourism, Guilin University of Technology Guilin 541004;
2. Administration of the National Nature Reserve of Mao'er Mountain Xing'an 541316

Received:2012-07-03 Revised:2013-05-15 Online:2013-06-25 Published:2013-07-16

摘要/Abstract

关键词: 漓江流域, 森林, 降水, 径流

Abstract:

In this paper, runoff processes of a small forested watershed in upper reaches of Lijiang River were in situ monitored and the relationships between runoff and influencing factors were studied from January 2009 to December 2011. The results showed that the precipitation distributed irregularly within a year and there were obvious differences in precipitation amount among years, which resulted in great runoff fluctuation and inter-annual variation in Lijiang River. Summer runoff accounted for 63.2% of the whole year's and winter runoff accounted for 9.2%. The runoff coefficient of the whole watershed was 0.664 2. The precipitation effect on river runoff was accumulated with multiple rainfall events, which resulted in a lag of peak runoff behind the precipitation. Runoff period is usually longer than the precipitation's. The runoff would extend to 20 days for 18 days' continued rainfall. The impact of rainfall on runoff decreased in non-linear with the extension of time after rainfall event. The accumulation of lagged runoff can reduce the function of forest on hydrological regulation and might result in large runoff under light rainfall in rain season.

Key words: Lijiang watershed, forest, precipitation, runoff

中图分类号:

S715.3

王金叶, 李海防, 段文军, 唐东明, 王绍能, 刘兴伟, 黄华乾. 漓江上游森林小流域径流过程及其影响因素[J]. 林业科学, 2013, 49(6): 149-153.

Wang Jinye, Li Haifang, Duan Wenjun, Tang Dongming, Wang Shaoneng, Liu Xingwei, Huang Huaqian. Runoff Processes and the Influencing Factors in a Small Forested Watershed of Upper Reaches of Lijiang River[J]. Scientia Silvae Sinicae, 2013, 49(6): 149-153.

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漓江上游森林小流域径流过程及其影响因素

Runoff Processes and the Influencing Factors in a Small Forested Watershed of Upper Reaches of Lijiang River

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