Rainfall partitioning in forest canopies and floors-processes, linkages, and scaling issues

森林冠层和地面的降雨分区过程、联系和尺度问题

• 批准号: 312341-2008
• 负责人: CarlyleMoses, Darryl
• 金额: $ 1.09万
• 依托单位: Thompson Rivers University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2012
• 资助国家: 加拿大
• 起止时间: 2012-01-01 至 2013-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=496985
• 关键词: Rainfall; partitioning; forest; canopies; floors

Wildfire, insect infestation, disease and commercial logging affect progressively larger areas of the world's forests, and resulting effects coupled with global climate change have created an increasing need for accurate tools with which hydrologists, foresters and watershed managers can evaluate disturbance and climate-related impacts on catchment water yield and ecosystem functions. To date, there has been no research examining how different disturbance types affect the forest floor and its water balance components, information that has important implications concerning wildfire potential. Further, there have been no studies examining the interactions between the spatial and temporal variability of understorey rainfall and the spatial and temporal distribution of soil moisture contents under different disturbance and regrowth scenarios.

野火、虫害、疾病和商业伐木对世界森林面积的影响越来越大，由此产生的影响再加上全球气候变化，使得越来越需要准确的工具，以便水文学家、林业工作者和流域管理人员能够评估干扰和气候对集水产量和生态系统功能的影响。到目前为止，还没有研究探讨不同的干扰类型如何影响森林地面及其水平衡组成部分，信息具有重要的影响野火的潜力。此外，还没有研究探讨不同干扰和再生情景下林下降雨的时空变异性与土壤含水量时空分布之间的相互作用。