| Main Title |
Conceptual Framework for Assessing Cumulative Impacts on the Hydrology of Nontidal Wetlands. |
| Author |
Winter, T. C. ;
|
| CORP Author |
Geological Survey, Lakewood, CO.;Corvallis Environmental Research Lab., OR. |
| Publisher |
c1988 |
| Year Published |
1988 |
| Report Number |
EPA/600/J-88/495; |
| Stock Number |
PB90-186214 |
| Additional Subjects |
Hydrology ;
Ground water ;
Surface water ;
Landforms ;
Water flow ;
Landscaping ;
Geomorphology ;
Subsurface drainage ;
Water storage ;
Soil water ;
Ground water recharge ;
Discharges ;
Surface drainage ;
Reprints ;
Wetlands ;
Environment management ;
Ecosystems ;
Water runoff
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB90-186214 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
18p |
| Abstract |
Wetlands occur in geologic and hydrologic settings that enhance the accumulation or retention of water. Regional slope, local relief, and permeability of the land surface are major controls on the formation of wetlands by surface-water sources. However, these landscape features also have significant control over groundwater flow systems, which commonly have a role in the formation of wetlands. Because the hydrologic system is a continuum, any modification of one component will have an effect on contiguous components. Disturbances commonly affecting the hydrologic system as it relates to wetlands include weather modification, alteration of plant communities, storage of surface water, road construction, drainage of surface water and soil water, alteration of groundwater recharge and discharge areas, and pumping of groundwater. Assessments of the cumulative effects of one or combinations of these disturbances on the hydrologic system as related to wetlands must take into account the uncertainty in the measurements and in the assumptions that are made in hydrologic studies. As one example, it may be appropriate to assume that regional groundwater flow systems are recharged in uplands and discharged in lowlands. However, a similar assumption commonly does not apply on a local scale, because of the spatial and temporal dynamics of groundwater recharge. Lack of appreciation of such hydrologic factors can lead to misunderstanding of the hydrologic function of wetlands within various parts of the landscape and mismanagement of wetland ecosystems. (Copyright (c) 1988 Springer-Verlag New York Inc.) |
| Supplementary Notes |
Pub. in Environmental Management, v12 n5 p605-620 Sep 88. Sponsored by Corvallis Environmental Research Lab., OR. |
| NTIS Title Notes |
Journal article. |
| Title Annotations |
Reprint: Conceptual Framework for Assessing Cumulative Impacts on the Hydrology of Nontidal Wetlands. |
| Category Codes |
57H; 48G; 48B |
| NTIS Prices |
PC A03/MF A01 |
| Primary Description |
600/02 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
011722442 |
| Origin |
NTIS |
| Type |
CAT |
