摘要
陆地生态系统关键要素对水文过程的调节机理是国际水文学及水资源等领域的研究热点和前沿问题。森林枯落物作为陆地生态系统的重要组成部分,是林区水文过程的重要影响因子,不仅能够延滞流域产/汇流、减缓洪水灾害,还能增强流域上游地区的水源涵养功能。因此,亟需深入研究森林枯落物对流域坡面水文过程尤其是产/汇流的调节机理。鉴于此,文中总结分析了森林枯落物自身持水特性及其对土壤入渗、蒸散发、坡面产/汇流等方面影响的国内外研究动态,指出了现有研究的基本特征,系统梳理了研究进程中尚存在的问题,并对其研究前景进行了展望,以期对森林区的枯落物水文功能及其调节机理的进一步研究提供参考。
The regulatory mechanism of key terrestrial ecosystem elements on hydrological process is a heat and frontier issue in the fields of international hydrology and water resources. As an important component of terrestrial ecosystem,litter layer is a vital factor influencing hydrological process in forest areas. It can not only delay the process of runoff generation or confluence and mitigate the flood disasters,but also enhance the water conservation function in the upper areas of watershed. Therefore,it is urgent to study the regulatory mechanism of forest litters on the hydrological process,especially on the runoff generation or confluence. For the purpose of providing references for further study of hydrological function and regulatory mechanism of the litters in forest area,this paper summarized and analyzed the research trends at home and abroad on the water-holding characteristics of forest litter layer and its effects on soil infiltration,evapotranspiration,slope runoff and overland flow,pointed out the basic characteristics of existing research,systematically sorted out the problems currently rising in the research process,and prospected its research prospects.
作者
沈振乾
秦天玲
聂汉江
田景环
Shen Zhenqian;Qin Tianling;Nie Hanjiang;Tian Jinghuan(School of Water Conservancy,North China University of Water Resources and Electric Power,Zhengzhou 450045,China;State Key Laboratory of Simulation and Regulation of Water Cycle in Riyer Basin,.China Institute of Water Resources and Hydropower Research,Be ijing 100038,China;Department of Hydraulic Engineering, Tsinghua University,Beijing 100084,China)
出处
《世界林业研究》
CSCD
北大核心
2019年第1期36-41,共6页
World Forestry Research
基金
国家杰出青年科学基金项目"变化环境下水资源演变机理与适应性调控"(51725905)
国家重点研发计划项目"区域水土资源联合配置及其风险应对"(2017YFA0605004)
国家自然科学基金面上项目"枯落物对淠河上游坡面产流和汇流过程的调节机理"(51879275)
关键词
森林枯落物
水文过程
调节机理
坡面产流/汇流
forest litter
hydrological process
regulatory mechanism
slope-runoff/overland flow
