globalchange  > 气候减缓与适应
DOI: 10.1002/ecs2.2561
WOS记录号: WOS:000461577000003
论文题名:
Assessing the relative vulnerabilities of Mid-Atlantic freshwater wetlands to projected hydrologic changes
作者: Wardrop, Denice H.1; Hamilton, Anna T.2; Nassry, Michael Q.1; West, Jordan M.3; Britson, Aliana J.1,4
通讯作者: Wardrop, Denice H.
刊名: ECOSPHERE
ISSN: 2150-8925
出版年: 2019
卷: 10, 期:2
语种: 英语
英文关键词: climate change ; Mid-Atlantic ; vulnerability assessment ; wetlands
WOS关键词: FLORISTIC QUALITY INDEX ; CLIMATE-CHANGE ; ECOLOGICAL CONDITION ; RIPARIAN WETLANDS ; PENNSYLVANIA ; IMPACTS ; ADAPTATION ; LANDSCAPE ; CLASSIFICATION ; CONSERVATION
WOS学科分类: Ecology
WOS研究方向: Environmental Sciences & Ecology
英文摘要:

Wetlands are known to provide a myriad of vital ecosystem functions and services, which may be under threat from a changing climate. However, these effects may not be homogenous across ecosystem functions, wetland types, ecoregions, or meso-scale watersheds, making broad application of the same management techniques inappropriate. Here, we present a relative wetland vulnerabilities framework, applicable across a range of spatial and temporal scales, to assist in identifying effective and robust management strategies in light of climate change. We deconstruct vulnerability into dimensions of exposure and sensitivity/adaptive capacity, and identify relevant measures of these as they pertain to the attributes of wetland extent and plant community composition. As a test of the framework, we populate it with data for three primary hydrogeomorphic wetland types (riverine, slope, and depression) in seven small watersheds across four ecoregions (Ridge and Valley, Piedmont, Unglaciated Plateau, and Glaciated Plateau) in the Susquehanna River watershed in Pennsylvania. We use data generated from the SRES A2 emissions experiment and MRI-CGCM2.3.2 dimate model as input to the Penn State Integrated Hydrologic Model to simulate future exposure to altered hydrologic conditions in our seven watersheds, as expressed in two hydrologic metrics: % time groundwater levels occur in the upper 30 cm (rooting zone) during the growing season, and median difference between spring and summer mean water levels. We then examine the spatial and temporal scales at which each of the components of vulnerability (exposure and sensitivity/adaptive capacity) shows significant relative differences. Overall, we find that relative differences in exposure persist at a very fine spatial grain, exhibiting high variability even among individual watersheds in a given ecoregion. For temporal scale, we find strong seasonal but weak annual relative differences in exposure resulting from a magnification of summer dry-down combined with winter and spring wet periods becoming wetter. Sensitivities/adaptive capacities show significant differences among wetland types. A comparison between our anticipated hydrologic alterations under dimate change and historical changes in hydrology due to anthropogenic disturbance indicates potential shifts in hydrologic patterns that are far beyond anything that wetland managers have experienced in the past.


Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/128822
Appears in Collections:气候减缓与适应

Files in This Item:

There are no files associated with this item.


作者单位: 1.Penn State Univ, Dept Geog, University Pk, PA 16802 USA
2.Tetra Tech Inc, Santa Fe, NM 87505 USA
3.EPA Off Res & Dev, Washington, DC 20460 USA
4.Oregon Dept Environm Qual Lab & Environm Assessme, Hillsboro, OR 97124 USA

Recommended Citation:
Wardrop, Denice H.,Hamilton, Anna T.,Nassry, Michael Q.,et al. Assessing the relative vulnerabilities of Mid-Atlantic freshwater wetlands to projected hydrologic changes[J]. ECOSPHERE,2019-01-01,10(2)
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Wardrop, Denice H.]'s Articles
[Hamilton, Anna T.]'s Articles
[Nassry, Michael Q.]'s Articles
百度学术
Similar articles in Baidu Scholar
[Wardrop, Denice H.]'s Articles
[Hamilton, Anna T.]'s Articles
[Nassry, Michael Q.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Wardrop, Denice H.]‘s Articles
[Hamilton, Anna T.]‘s Articles
[Nassry, Michael Q.]‘s Articles
Related Copyright Policies
Null
收藏/分享
所有评论 (0)
暂无评论
 

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.