Download or read book The Interactive Effects of Deer Herbivory and Flooding on Tree Recruitment in Floodplain Forests of the Upper Mississippi River System written by Benjamin J. Cogger and published by . This book was released on 2011 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: Floodplain forests are a critical link between land and river ecosystems, moderating nutrient fluxes, providing animal habitat, and stabilizing the river corridor. In the Upper Mississippi River (UMR), floodplain tree recruitment appears to be limited by whitetailed deer browsing. The effects of landscape position and species composition on deer activity in floodplain forest restoration sites were examined, along with the ways in which deer browsing and flooding interact to affect the growth of young trees.

Download or read book Forest Response to High Duration and Intensity Flooding Along Pool 26 of the Upper Mississippi River written by Robert J. Cosgriff and published by . This book was released on 1999 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many natural resource managers could not anticipate the effects that the flood of 1993 would have on floodplain forests of the Upper Mississippi River. Previous experience suggested that floodplain forests were adapted to such events and should only experience removal of upland a non-native species. However, when trees considered highly flood tolerant did not leaf out in the spring of 1994, natural resource managers began to realize the serious impact that a large-scale flood could have on floodplain forest communities. To better understand these impacts, researchers with the Long Term Resource Monitoring Program at Pool 26 of the Upper Mississippi River System (UMRS) began describing forest community response to the large-scale flood of 1993. The floodplain forests of the UMRS are some of the most productive ecosystems worldwide. These communities provide habitat and forage for many species of wildlife, produce timber, and provide a valuable carbon dioxide sink. Like many other plant communities, floodplain forest successional patterns are largely driven by disturbance events (e.g., fire, wind-throw, flooding, drought, and physical erosion/deposition). Black willow and eastern cottonwood regenerate on recent deposits of substrate (mainly sand) created by the river. As a result of annual floods, fine sediment drops out of suspension and the low landform occupied by the willow/cottonwood community develops into a low terrace. At the same time, the willow/cottonwood community is gradually being replaced by silver maple and green ash. The process of terrace building continues and communities of mixed forests and oak forests develop as elevation increases and the frequency of flooding decreases. Understanding how these communities respond to the various disturbance events, particularly large scale flooding, is important to natural resource managers who are trying to manage for specific or diverse floodplain forest communities.

Download or read book Forest Response to High Duration and Intensity Flooding Along Pool 26 of the Upper Mississippi River written by Robert J. Cosgriff and published by . This book was released on 1999 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many natural resource managers could not anticipate the effects that the flood of 1993 would have on floodplain forests of the Upper Mississippi River. Previous experience suggested that floodplain forests were adapted to such events and should only experience removal of upland a non-native species. However, when trees considered highly flood tolerant did not leaf out in the spring of 1994, natural resource managers began to realize the serious impact that a large-scale flood could have on floodplain forest communities. To better understand these impacts, researchers with the Long Term Resource Monitoring Program at Pool 26 of the Upper Mississippi River System (UMRS) began describing forest community response to the large-scale flood of 1993. The floodplain forests of the UMRS are some of the most productive ecosystems worldwide. These communities provide habitat and forage for many species of wildlife, produce timber, and provide a valuable carbon dioxide sink. Like many other plant communities, floodplain forest successional patterns are largely driven by disturbance events (e.g., fire, wind-throw, flooding, drought, and physical erosion/deposition). Black willow and eastern cottonwood regenerate on recent deposits of substrate (mainly sand) created by the river. As a result of annual floods, fine sediment drops out of suspension and the low landform occupied by the willow/cottonwood community develops into a low terrace. At the same time, the willow/cottonwood community is gradually being replaced by silver maple and green ash. The process of terrace building continues and communities of mixed forests and oak forests develop as elevation increases and the frequency of flooding decreases. Understanding how these communities respond to the various disturbance events, particularly large scale flooding, is important to natural resource managers who are trying to manage for specific or diverse floodplain forest communities.

Download or read book Flooding and Its Effect on Trees written by and published by . This book was released on 1994 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Effects of Hydrologic Modifications on Floodplain Forest Tree Recruitment and Growth in the Mississippi River Alluvial Valley USA written by Hugo Gee and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effects of Flood Inundation and Invasion by Reed Canarygrass on Nitrogen Cycling in an Upper Mississippi River Floodplain Forest written by Whitney Swanson and published by . This book was released on 2016 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt: Floodplain forests provide ecosystem services such as nutrient storage and rapid biogeochemical cycling which may reduce transport of nitrogen (N) downstream. Invasion by nuisance plant species, however, may modify a floodplain's ability to capture N by altering soil properties, litter decomposition rates, N availability, and rates of N cycling. I examined the effect of flooding on soil properties and N cycling at a floodplain site in Pool 8 of the Upper Mississippi River with two different plant communities: mature native forest (Acer saccarinum) and patches of an invasive grass (Phalaris arundinacea). Plots were established within each vegetation type along an elevation gradient and sampled throughout the summers of 2013 and 2014. Spatial trends in flooding resulted in better conditions for microbial activity in low elevations. Nutrient processes and NH4 and NO3− availability, however, were best explained by vegetation type and time after flooding. Phalaris plots maintained higher rates of nitrification and higher concentrations of available NH4+ and NO3−. These results suggest that invasion by Phalaris may make nitrogen more readily available and could help to reinforce this species' persistence in floodplain wetlands. They also raise the possibility that Phalaris may decrease floodplain N storage capacity.

Download or read book Influence of Flooding Gap Size and Surrounding Forest Characteristics on the Fate of UMRS Floodplain Forest Canopy Gaps written by Alexandra C. Oines and published by . This book was released on 2020 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt: A natural loss of forest canopy creates gaps that can serve as locations for the growth of new cohorts of seedlings. However, adverse environmental conditions (e.g. change in flood regime, invasive species) may inhibit typical successional patterns and prevent gap closure. This project aims to improve our understanding of factors that determine the fate of canopy gaps in the Upper Mississippi River System floodplain forests. Collaborators identified forest gaps with GIS data and LiDAR imagery. We surveyed a subset of 20 gaps across a range of sizes and flood conditions in Pools 8 and 9 of the Mississippi River in summer 2019. Across all surveyed gaps, the presence of tree seedlings 50 cm tall declined as the presence of reed canarygrass increased. Tree saplings 50 cm in height were only recorded within 45% of sites, suggesting a lack of natural regeneration. Statistical modeling suggests that multiple environmental factors may interact to influence the vegetation that grows within canopy gap sites, including gap size, flood period, and forest buffer percentage. This insight may be used to select project areas that are suitable for forest management and for the design of management plans to most effectively conserve our forests.

Download or read book Forests and Floods written by Ward Shepard and published by . This book was released on 1928 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Forests in Flood Control written by United States. Congress. House. Committee on Flood Control and published by . This book was released on 1936 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Impacts of Flooding Regime Modification on Wildlife Habitats of Bottomland Hardwood Forests in the Lower Mississippi Valley written by Charles V. Klimas and published by . This book was released on 1981 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Effects of Flooding on Species Composition and Structure in a Floodplain Forest Community Mud Island Mississippi River written by Jamie Catherine Chandler and published by . This book was released on 2004 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Floods Forests and the Future written by and published by . This book was released on 1927 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Hydrologic Effects of a Changing Forest Landscape written by National Research Council and published by National Academies Press. This book was released on 2008-12-19 with total page 181 pages. Available in PDF, EPUB and Kindle. Book excerpt: Of all the outputs of forests, water may be the most important. Streamflow from forests provides two-thirds of the nation's clean water supply. Removing forest cover accelerates the rate that precipitation becomes streamflow; therefore, in some areas, cutting trees causes a temporary increase in the volume of water flowing downstream. This effect has spurred political pressure to cut trees to increase water supply, especially in western states where population is rising. However, cutting trees for water gains is not sustainable: increases in flow rate and volume are typically short-lived, and the practice can ultimately degrade water quality and increase vulnerability to flooding. Forest hydrology, the study of how water flows through forests, can help illuminate the connections between forests and water, but it must advance if it is to deal with today's complexities, including climate change, wildfires, and changing patterns of development and ownership. This book identifies actions that scientists, forest and water managers, and citizens can take to help sustain water resources from forests.

Download or read book The Effect of Hydroperiod on Floodplain Forest Production written by Joe Bill Birch and published by . This book was released on 1983 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Indicators of Ecosystem Structure and Function for the Upper Mississippi River System written by Nathan R. De Jager and published by . This book was released on 2018 with total page 115 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Radiotelemetric Study of the Behavioral Ecology of White tailed Deer in an Upper Mississippi River Floodplain Environment written by Willis Melvin Mattison and published by . This book was released on 1972 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study of the behavioral ecology of white-tailed deer (Odocoileus virginianus) was conducted in the Mississippi River flood plain on the Trempealeau National Wildlife Refuge, Wisconsin, during the months of August, September, and October of 1971. Radiotelemetry was used to determine movement patterns. The average home range of the three does that were collared was 118 acres, which is considerably smaller than most other studies have indicated. The home ranges were only slightly oblong and not much elongated as has been reported by other researchers. The average activity radius for the three does had an arithmetic mean of 843 feet and the individual average activity radius was found to vary directly with the size of the home range. The home ranges found in this study, and others, were used in an attempt to develop the relation between population density and home range size. Diel movement patterns were found to consist of four distinct periods: 1) inactivity or bedding from 11:00 a.m. to 3:00 p.m.; 2) concealed movement from 3:00 p.m. to 7:00 p.m.; 3) unrestricted movement from 7:00 p.m. to 7:00 a.m.; and 4) concealed movement from 7:00 a.m. to 11:00 a.m. No correlation was found between the rather uniform weather conditions existing during the study period and changes in deer movement as measured by daily average activity radius.

Download or read book The Influence of Restored Flooding on Floodplain Plant Distributions written by Wendy Bryan Trowbridge and published by . This book was released on 2002 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: