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Soil Nitrogen Cycling Over Two Decades Following Calcium Treatment In Hubbard Brook Experimental Forest Nh
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Book Synopsis Soil Nitrogen Cycling Over Two Decades Following Calcium Treatment in Hubbard Brook Experimental Forest, NH by :
Download or read book Soil Nitrogen Cycling Over Two Decades Following Calcium Treatment in Hubbard Brook Experimental Forest, NH written by and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: A watershed-scale calcium addition experiment at Hubbard Brook Experimental Forest, New Hampshire, was performed in 1999 to better understand how forest ecosystem function and biogeochemistry are affected by changes in pH. Significant increases in forest growth and acid neutralizing capacity of the soil and stream water were reported in the six years following the calcium addition, but the expected stimulation of the nitrogen cycle was not observed. The aims of this study were to 1) examine the 20-year dataset of soil nitrogen dynamics following the experimental calcium addition in the treated watershed and paired reference area to understand longer term trends and effects, and 2) explore connections between soil nitrogen processes and watershed nitrogen export in stream water observed in the calcium-treated watershed since 2013. Since 2002, soil pH was higher in the calcium-treated watershed than the reference, with stronger differences seen in surface horizons, but declined over time and converged toward the reference conditions by 2018, throughout the soil profile. Soil nitrogen cycling measurements were not consistent with the changes in soil pH, and temporal trends were different depending on the variable in question. Differences in temporal trends in nitrogen cycling variables were often more pronounced as a function of soil horizon than Ca treatment. However, interesting trends were seen in certain variables, with effects of Ca treatment diverging from long term trends in the reference area for some variables while converging toward reference conditions for others. There was no strong evidence from microbial nitrogen transformations at the plot scale to explain the nitrate export from the calcium treated watershed observed by other researchers (Rosi-Marshall et al. 2016). Because pathways in soil nitrogen cycling did not show consistent trajectories over time in response to the calcium treatment, understanding how changes in pH and other environmental variables, along with competition for nitrogen between plants and soil microbes, differentially affect these various processes remains a challenge in forest ecosystem science.
Book Synopsis Microbial Nitrogen Cycling Response to Calcium and Phosphorus in Northern Hardwood Forest Soils at the Hubbard Brook Experimental Forest, New Hampshire by : Kevan Joseph Minick
Download or read book Microbial Nitrogen Cycling Response to Calcium and Phosphorus in Northern Hardwood Forest Soils at the Hubbard Brook Experimental Forest, New Hampshire written by Kevan Joseph Minick and published by . This book was released on 2009 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt: Anthropogenic soil acidification appears to be detrimental to forest health in the northeastern US possibly due to reduced microbial activity influencing plant-available nutrients. In a recent study at the Hubbard Brook Experimental Forest, soil microbial activity was not stimulated by increased pH. Therefore, microbial response to increased pH may depend on the level of calcium added or availability of other nutrients. I tested the effects of Ca and phosphorus additions in the field on microbial nitrogen transformations. High Ca addition reduced net N mineralization. Low Ca addition did not affect N transformations, but the combination of Ca/P addition reduced net N mineralization. Phosphorus addition unexpectedly increased gross nitrification. Results from this study indicate that microbial mineralization is not sensitive to moderate differences in pH or limited by P. Therefore, detrimental effects of acidic deposition to these forests are not likely a result of nutrient deficiencies related to suppression of microbial activity.
Book Synopsis Hubbard Brook by : Richard Turner Holmes
Download or read book Hubbard Brook written by Richard Turner Holmes and published by Yale University Press. This book was released on 2016-01-01 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Since the early 1960s, the Hubbard Brook Experimental Forest in the White Mountains of New Hampshire has been one of the most comprehensively studied landscapes on earth. This book highlights many of the important ecological findings amassed during the long-term research conducted there, and considers their regional, national, and global implications." -- P.2 of cover.
Download or read book Forest Biomass written by T. Satoo and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lord Rutherford has said that all science is either physics or stamp collecting. On that basis the study of forest biomass must be classified with stamp collecting and other such pleasurable pursuits. Japanese scientists have led the world, not only in collecting basic data, but in their attempts to systematise our knowledge of forest biomass. They have studied factors affecting dry matter production of forest trees in an attempt to approach underlying phYf'ical principles. This edition of Professor Satoo's book has been made possible the help of Dr John F. Hosner and the Virginia Poly technical Institute and State University who invited Dr Satoo to Blacksburg for three months in 1973 at about the time when he was in the final stages of preparing the Japanese version. Since then the explosion of world literature on forest biomass has continued to be fired by increasing shortages of timber supplies in many parts of the world as well as by a need to explore renewable sources of energy. In revising the original text I have attempted to maintain the input of Japanese work - much of which is not widely available outside Japan - and to update both the basic information and, where necessary, the conclusions to keep them in tune with current thinking. Those familiar with the Japanese original will find Chapter 3 largely rewritten on the basis of new work - much of which was initiated while Dr Satoo was in Blacksburg.
Book Synopsis Forest Hydrology by : Devendra Amatya
Download or read book Forest Hydrology written by Devendra Amatya and published by CABI. This book was released on 2016-09-14 with total page 309 pages. Available in PDF, EPUB and Kindle. Book excerpt: Forests cover approximately 26% of the world's land surface area and represent a distinct biotic community. They interact with water and soil in a variety of ways, providing canopy surfaces which trap precipitation and allow evaporation back into the atmosphere, thus regulating how much water reaches the forest floor as through fall, as well as pull water from the soil for transpiration. The discipline "forest hydrology" has been developed throughout the 20th century. During that time human intervention in natural landscapes has increased, and land use and management practices have intensified. The book will be useful for graduate students, professionals, land managers, practitioners, and researchers with a good understanding of the basic principles of hydrology and hydrologic processes.
Book Synopsis Ecology and Management of Northern Hardwood Forests in New England by : James W. Hornbeck
Download or read book Ecology and Management of Northern Hardwood Forests in New England written by James W. Hornbeck and published by . This book was released on 1992 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Proceedings of the 1986 Symposium on the Productivity of Northern Forests Following Biomass Harvesting by : Charles Tattersall Smith
Download or read book Proceedings of the 1986 Symposium on the Productivity of Northern Forests Following Biomass Harvesting written by Charles Tattersall Smith and published by . This book was released on 1986 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Scientific Base for Silviculture and Management Decisions in the National Forest System by :
Download or read book The Scientific Base for Silviculture and Management Decisions in the National Forest System written by and published by . This book was released on 1976 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Land Use Effects on Streamflow and Water Quality in the Northeastern United States by : Avril L. de la Cretaz
Download or read book Land Use Effects on Streamflow and Water Quality in the Northeastern United States written by Avril L. de la Cretaz and published by CRC Press. This book was released on 2007-06-01 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: Filling a long-standing need for a desk reference that synthesizes current research, Land Use Effects on Streamflow and Water Quality in the Northeastern United States reviews and discusses the impact of forest management, agriculture, and urbanization. The book provides a gateway to the diverse scientific literature that is urgently needed
Book Synopsis George Washington National Forest (N.F.), Land and Resource(s) Management Plan (LRMP) (VA,WV) by :
Download or read book George Washington National Forest (N.F.), Land and Resource(s) Management Plan (LRMP) (VA,WV) written by and published by . This book was released on 1986 with total page 582 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Forest Ecosystems by : David A. Perry
Download or read book Forest Ecosystems written by David A. Perry and published by JHU Press. This book was released on 2008-07-24 with total page 631 pages. Available in PDF, EPUB and Kindle. Book excerpt: 2009 Outstanding Academic Title, Choice This acclaimed textbook is the most comprehensive available in the field of forest ecology. Designed for advanced students of forest science, ecology, and environmental studies, it is also an essential reference for forest ecologists, foresters, and land managers. The authors provide an inclusive survey of boreal, temperate, and tropical forests with an emphasis on ecological concepts across scales that range from global to landscape to microscopic. Situating forests in the context of larger landscapes, they reveal the complex patterns and processes observed in tree-dominated habitats. The updated and expanded second edition covers • Conservation • Ecosystem services • Climate change • Vegetation classification • Disturbance • Species interactions • Self-thinning • Genetics • Soil influences • Productivity • Biogeochemical cycling • Mineralization • Effects of herbivory • Ecosystem stability
Book Synopsis Biogeochemical Cycles by : Katerina Dontsova
Download or read book Biogeochemical Cycles written by Katerina Dontsova and published by John Wiley & Sons. This book was released on 2020-04-14 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: Elements move through Earth's critical zone along interconnected pathways that are strongly influenced by fluctuations in water and energy. The biogeochemical cycling of elements is inextricably linked to changes in climate and ecological disturbances, both natural and man-made. Biogeochemical Cycles: Ecological Drivers and Environmental Impact examines the influences and effects of biogeochemical elemental cycles in different ecosystems in the critical zone. Volume highlights include: Impact of global change on the biogeochemical functioning of diverse ecosystems Biological drivers of soil, rock, and mineral weathering Natural elemental sources for improving sustainability of ecosystems Links between natural ecosystems and managed agricultural systems Non-carbon elemental cycles affected by climate change Subsystems particularly vulnerable to global change The American Geophysical Union promotes discovery in Earth and space science for the benefit of humanity. Its publications disseminate scientific knowledge and provide resources for researchers, students, and professionals. Book Review: http://www.elementsmagazine.org/archives/e16_6/e16_6_dep_bookreview.pdf
Book Synopsis Selected Water Resources Abstracts by :
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1989 with total page 878 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book General Technical Report NE written by and published by . This book was released on 1980 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Seeking the Wolf Tree by : Natalie Cleavitt
Download or read book Seeking the Wolf Tree written by Natalie Cleavitt and published by Rowman & Littlefield. This book was released on 2015-11-01 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: Old-time New England foresters coined the term “wolf tree” for trees they saw as having the ability to “eat” the sun and nutrients and prevent the growth of other trees. Today, however, we understand how wolf trees benefit wildlife. Join Aurora and Orion as they search for a wolf tree in the 3500-acre forest managed by Harvard University near Petersham, Massachusetts, looking for such clues as a large trunk, low branches, wildlife activity, and nearby smaller trees.
Book Synopsis An Initial Synthesis of Results in the Coniferous Forest Biome, 1970-1973 by : Robert L. Edmonds
Download or read book An Initial Synthesis of Results in the Coniferous Forest Biome, 1970-1973 written by Robert L. Edmonds and published by . This book was released on 1974 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dynamic Properties of Forest Ecosystems by : David E. Reichle
Download or read book Dynamic Properties of Forest Ecosystems written by David E. Reichle and published by Cambridge University Press. This book was released on 1981-03-26 with total page 750 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume brings together different 'schools' of ecological investigation of woodlands. After a description of the structure and floristic composition of the research sites, involving a comparison of boreal, temperate, Mediterranean and tropical forest, the study goes on to consider the dynamic aspects of the woodland formation.
