DOI: 10.5194/hess-18-1151-2014
Scopus记录号: 2-s2.0-84897096000
论文题名: Hurricane impacts on a pair of coastal forested watersheds: Implications of selective hurricane damage to forest structure and streamflow dynamics
作者: Jayakaran A ; D ; , Williams T ; M ; , Ssegane H ; , Amatya D ; M ; , Song B ; , Trettin C ; C
刊名: Hydrology and Earth System Sciences
ISSN: 10275606
出版年: 2014
卷: 18, 期: 3 起始页码: 1151
结束页码: 1164
语种: 英语
Scopus关键词: Evapotranspiration
; Hurricanes
; Metadata
; Stream flow
; Vegetation
; Water supply
; Watersheds
; Forest vegetation
; Forested watersheds
; Forested wetlands
; Management techniques
; Paired watersheds
; Rainfall-runoff relationship
; Vegetation dynamics
; Watershed hydrology
; Forestry
; coastal zone
; evapotranspiration
; forest management
; hurricane
; Hurricane Hugo 1989
; rainfall-runoff modeling
; sapling
; seedling
; storm damage
; streamflow
; vegetation dynamics
; water use
; watershed
; wetland
; Evaporation
; Forestry
; Plants
; Stream Flow
; Transpiration
; Water Sheds
; Water Supply
; Atlantic Ocean
; Atlantic Ocean (Southeast)
; South Carolina
; United States
英文摘要: Hurricanes are infrequent but influential disruptors of ecosystem processes in the southeastern Atlantic and Gulf coasts. Every southeastern forested wetland has the potential to be struck by a tropical cyclone. We examined the impact of Hurricane Hugo on two paired coastal South Carolina watersheds in terms of streamflow and vegetation dynamics, both before and after the hurricane's passage in 1989. The study objectives were to quantify the magnitude and timing of changes including a reversal in relative streamflow difference between two paired watersheds, and to examine the selective impacts of a hurricane on the vegetative composition of the forest. We related these impacts to their potential contribution to change watershed hydrology through altered evapotranspiration processes. Using over 30 years of monthly rainfall and streamflow data we showed that there was a significant transformation in the hydrologic character of the two watersheds-a transformation that occurred soon after the hurricane's passage. We linked the change in the rainfall-runoff relationship to a catastrophic change in forest vegetation due to selective hurricane damage. While both watersheds were located in the path of the hurricane, extant forest structure varied between the two watersheds as a function of experimental forest management techniques on the treatment watershed. We showed that the primary damage was to older pines, and to some extent larger hardwood trees. We believe that lowered vegetative water use impacted both watersheds with increased outflows on both watersheds due to loss of trees following hurricane impact. However, one watershed was able to recover to pre hurricane levels of evapotranspiration at a quicker rate due to the greater abundance of pine seedlings and saplings in that watershed. © 2014 Author(s). Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/78290
Appears in Collections: 气候变化事实与影响
There are no files associated with this item.
作者单位: Baruch Institute of Coastal Ecology and Forest Science, Clemson University, Georgetown, SC, United States; Energy Systems Division, Argonne National Laboratory, Argonne, IL, United States; Center for Forested Wetlands Research, USDA Forest Service, Cordesville, SC, United States
Recommended Citation:
Jayakaran A,D,, Williams T,et al. Hurricane impacts on a pair of coastal forested watersheds: Implications of selective hurricane damage to forest structure and streamflow dynamics[J]. Hydrology and Earth System Sciences,2014-01-01,18(3)