Title: Effects of timber management on the hydrology of wetland forests in the Southern United States
Author: Sun, Ge; McNulty, Steven G.; Shepard, James P.; Amatya, Devendra M.; Riekerk, Hans; Comerford, Nicholas B.; Skaggs, Wayne; Swift, Lloyd Jr.
Source: Forest Ecology and Management. 143. 227-236.
Publication Series: Miscellaneous Publication
Description: The objectives of this paper are to review the hydrologic impacts of various common forest management practices that include harvesting, site preparation, and drainage. Field hydrological data collected during the past 5–10 years from ten forested wetland sites across the Southern United States are synthesized using various methods, including hydrologic simulation models and Geographic Information Systems. Wetland systems evaluated include red river bottoms, black river bottoms, pocosins, wet mineral flats, cypress domes, and pine flatwoods. Hydrologic variables used in this assessment include water table level, drainage, and storm flow on different spatial and temporal scales. Wetland ecosystems have higher water storage capacity and higher evapotranspiration than uplands. Hydrologic impacts of forest management are variable, but generally minor, especially when forest best management practices are adopted. A conceptually generalized model is developed to illustrate the relative magnitude of hydrologic effects of forest management on different types of wetlands in the Southern United States. This model suggests that in addition to soils, wetland types, and management practice options, climate is an important factor in controlling wetland hydrology and the magnitude of disturbance impacts. Bottomland wetlands, partial harvesting, and warm climate usually offer conditions that result in low hydrologic impact.
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Sun, Ge; McNulty, Steven G.; Shepard, James P.; Amatya, Devendra M.; Riekerk, Hans; Comerford, Nicholas B.; Skaggs, Wayne; Swift, Lloyd, Jr. 2001. Effects of timber management on the hydrology of wetland forests in the Southern United States. Forest Ecology and Management. 143. 227-236.
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