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Fauvet, Guillaume; Claret, C.; Marmonier, Pierre

doi:10.1023/a:1017540306550

Cited by 16 publications

(3 citation statements)

References 37 publications

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“…GIEs can stay saturated during times of drought [14] and can act as carbon capture or carbon runoff zones [15,16]. Additionally, groundwater-influenced systems can improve water quality in surface water systems by providing summertime cold water habitats for aquatic species, cooling summer water temperatures, supporting micro-fauna that promote the breakdown of contaminants [17], and by regulating nutrient cycling and decomposition of organic matter [18].…”

Section: Introductionmentioning

confidence: 99%

Vulnerability Assessment of Groundwater Influenced Ecosystems in the Northeastern United States

Snyder,

Loftin,

Reeve

2024

Water

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Groundwater-influenced ecosystems (GIEs) are increasingly vulnerable due to groundwater extraction, land-use practices, and climate change. These ecosystems receive groundwater inflow as a portion of their baseflow or water budget, which can maintain water levels, water temperature, and chemistry necessary to sustain the biodiversity that they support. In some systems (e.g., springs, seeps, fens), this connection with groundwater is central to the system’s integrity and persistence. Groundwater management decisions for human use often do not consider the ecological effects of those actions on GIEs. This disparity can be attributed, in part, to a lack of information regarding the physical relationships these systems have with the surrounding landscape and climate, which may influence the environmental conditions and associated biodiversity. We estimate the vulnerability of areas predicted to be highly suitable for the presence of GIEs based on watershed (U.S. Geological Survey Hydrologic Unit Code 12 watersheds: 24–100 km2) and pixel (30 m × 30 m pixels) resolution in the Atlantic Highlands and Mixed Wood Plains EPA Level II Ecoregions in the northeastern United States. We represent vulnerability with variables describing adaptive capacity (topographic wetness index, hydric soil, physiographic diversity), exposure (climatic niche), and sensitivity (aquatic barriers, proportion urbanized or agriculture). Vulnerability scores indicate that ~26% of GIEs were within 30 m of areas with moderate vulnerability. Within these GIEs, climate exposure is an important contributor to vulnerability of 40% of the areas, followed by land use (19%, agriculture or urbanized). There are few areas predicted to be suitable for GIEs that are also predicted to be highly vulnerable, and of those, climate exposure is the most important contributor to their vulnerability. Persistence of GIEs in the northeastern United States may be challenged as changes in the amount and timing of precipitation and increasing air temperatures attributed to climate change affect the groundwater that sustains these systems.

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Section: Introductionmentioning

confidence: 99%

Vulnerability Assessment of Groundwater Influenced Ecosystems in the Northeastern United States

Snyder,

Loftin,

Reeve

2024

Water

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“…Groundwater inflow helps maintain consistent water levels and relatively stable water temperatures that can provide water inputs during times of drought [4] and create cold water habitat for aquatic species (e.g., Salvelinus fontinalis [brook trout], [5]; Alasmidonta heterodon [dwarf wedgemussel], [6]; Salmo salar [Atlantic salmon], [7]). Groundwater-dependent ecosystems also capture carbon from surface runoff [3,8], support microfauna that break down contaminants [9], and regulate nutrient cycling and decomposition of organic matter [10].…”

Section: Introductionmentioning

confidence: 99%

Predicting the Presence of Groundwater-Influenced Ecosystems in the Northeastern United States with Ensembled Models

Snyder,

Loftin,

Reeve

2023

Water

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Globally, groundwater-influenced ecosystems (GIEs) are increasingly vulnerable to groundwater extraction and land use practices. Groundwater supports these ecosystems by providing inflow, which can maintain water levels, water temperature, and the chemistry necessary to sustain the biodiversity that they support. Many aquatic systems receive groundwater as a portion of baseflow, and in some systems, the connection with groundwater is significant and important to the system’s integrity and persistence. There is a lack of information about where these systems are found and their relationships with environmental conditions in the surrounding landscape. Additionally, groundwater management for human use often does not address maintaining the ecological functions of GIEs. We used correlative distribution modeling methods (GLM, GAM, MaxEnt, Random Forest) to predict landscape-scale habitat suitability for GIEs in two ecologically distinct ecoregions (EPA Level II ecoregions: Atlantic Highlands and Mixed Wood Plains) in the northeastern United States. We evaluated and combined the predictions to create ensemble models for each ecoregion. The accuracy of the ensemble models was 75% in the Atlantic Highlands and 86% in the Mixed Wood Plains. In the Mixed Wood Plains, hydric soil, surface materials, and soil permeability were the best predictors of GIE presence, whereas hydric soil, topographic wetness index, and elevation were the best predictors of GIE presence in the Atlantic Highlands. Approximately 1% of the total land area in each ecoregion was predicted to be suitable for GIEs, highlighting that there likely is a small proportion of the landscape occupied by these systems.

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“…Data scarcity is unfortunately strongly correlated to water scarcity. This includes the data for water Ql & Qn, which not only determine waters as resources but also indicate the ecological status and sufficiency of water systems [5,11,14,22,24,33].…”

Section: Introductionmentioning

confidence: 99%

Evolution of the Experimental Plan in Data Collection and Verification Tactics in Modelling of River Water Quality

Topalova

Ribarova

Todorova

et al. 2006

Biotechnology & Biotechnological Equipment

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Modeling is one of the basic approaches for preventive management of the water quantity and quality, as well as for the ecological sufficiency of the river. The approach for selection of parameters and data collection, specific and unique for each model, is an important element in this aspect. This data plays a critical role for the calibration and verification of models. In this paper two years of investigations of the gradual adaptation of the experimental plan of data collection as well as the adequate development according to the HSPF (EPA) model and specificity of Iskar River (Bulgaria) have been presented. The 8degree experimental evolution was accomplished in line with the principles of EMS, ISO-14000, WFD, ecological complexity and interdisciplinary approach. The obtained results confirmed that mathematical instruments of the model require individual experimental scenario for data collection, specific for each catchment parameter, application of variety of approaches for measurement of the real rate of the processes-opposite scaling up, physical and analogous modeling, selection of critical control points, parameters and temporal scheme.

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Untitled

Cited by 16 publications

References 37 publications

Vulnerability Assessment of Groundwater Influenced Ecosystems in the Northeastern United States

Vulnerability Assessment of Groundwater Influenced Ecosystems in the Northeastern United States

Predicting the Presence of Groundwater-Influenced Ecosystems in the Northeastern United States with Ensembled Models

Evolution of the Experimental Plan in Data Collection and Verification Tactics in Modelling of River Water Quality

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