Improved Allometric Equations for Black Locust (Robinia Pseudoacacia) in the Coweeta Basin

Improved Allometric Equations for Black Locust (Robinia Pseudoacacia) in the Coweeta Basin
Author:
Publisher:
Total Pages: 8
Release: 2021
Genre: Black locust
ISBN:

Allometric equations are widely used to estimate forest aboveground biomass (AGB). However, their development rarely includes the oldest and largest trees, leading to estimation errors. Black locust (Robinia pseudoacacia) is an early successional nitrogen-fixing tree, native to the Eastern United States. It is widespread, often the dominant tree following disturbance, and can be a significant source of new nitrogen to recovering forests. Here we developed allometric equations for black locust to predict AGB and leaf area based on diameter at breast height (DBH). We compiled existing data from our study site and sampled new trees, ranging in size from 6.0-58.5 cm DBH. Destructively harvested new trees were measured for foliage, branch, and bole dry biomass and carbon and nitrogen concentrations. Parameters for our predictive equations were lower than those previously published; existing equations applied to these largest individuals resulted in overestimates of bole and branch biomass on average by 33.6 and 325.3 percent, respectively. We also found that foliage and woody nitrogen concentrations declined with age, together suggesting age-related declines in black locust are greater than other co-occurring species. Our equations significantly improved accuracy of AGB predictions and will aid in site-specific forest biomass estimates and new nitrogen inputs.

Climate Change Adaptation and Mitigation Management Options

Climate Change Adaptation and Mitigation Management Options
Author: James M. Vose
Publisher: CRC Press
Total Pages: 494
Release: 2013-12-05
Genre: Nature
ISBN: 1466572752

Forest land managers face the challenges of preparing their forests for the impacts of climate change. However, climate change adds a new dimension to the task of developing and testing science-based management options to deal with the effects of stressors on forest ecosystems in the southern United States. The large spatial scale and complex interactions make traditional experimental approaches difficult. Yet, the current progression of climate change science offers new insights from recent syntheses, models, and experiments, providing enough information to start planning now for a future that will likely include an increase in disturbances and rapid changes in forest conditions. Climate Change Adaptation and Mitigation Management Options: A Guide for Natural Resource Managers in Southern Forest Ecosystems provides a comprehensive analysis of forest management options to guide natural resource management in the face of future climate change. Topics include potential climate change impacts on wildfire, insects, diseases, and invasives, and how these in turn might affect the values of southern forests that include timber, fiber, and carbon; water quality and quantity; species and habitats; and recreation. The book also considers southern forest carbon sequestration, vulnerability to biological threats, and migration of native tree populations due to climate change. This book utilizes the most relevant science and brings together science experts and land managers from various disciplines and regions throughout the south to combine science, models, and on-the-ground experience to develop management options. Providing a link between current management actions and future management options that would anticipate a changing climate, the authors hope to ensure a broader range of options for managing southern forests and protecting their values in the future.

The Fernow Watershed Acidification Study

The Fernow Watershed Acidification Study
Author: Mary Beth Adams
Publisher: BoD – Books on Demand
Total Pages: 298
Release: 2006-04-28
Genre: History
ISBN: 1402046146

The Fernow Watershed Acidification Study is a long-term, paired watershed acidification study. This book describes the responses to chronic N and S amendments by deciduous hardwood forests, one of the few studies to focus on hardwood forest ecosystems. Intensive monitoring of soil solution and stream chemistry, along with measurements of soil chemistry, and vegetation growth and chemistry, provide insights into the acidification process in forested watersheds.

Fundamentals of Tree Ring Research

Fundamentals of Tree Ring Research
Author: James H. Speer
Publisher: University of Arizona Press
Total Pages: 360
Release: 2010
Genre: Science
ISBN: 0816526850

This comprehensive text addresses all of the subjects that a reader who is new to the field will need to know and will be a welcome reference for practitioners at all levels. It includes a history of the discipline, biological and ecological background, principles of the field, basic scientific information on the structure and growth of trees, the complete range of dendrochronology methods, and a full description of each of the relevant subdisciplines.

Ecosystem Ecology

Ecosystem Ecology
Author: Sven Erik Jørgensen
Publisher: Academic Press
Total Pages: 537
Release: 2009-07-25
Genre: Science
ISBN: 0444534679

Jorgensen's Ecosystem Ecology provides a thorough and comprehensive overview of the world's aquatic and terrestrial ecosystems. This derivative volume based on the best-selling Encyclopedia of Ecology (published 2008) is the only book currently published that provides an overview of the world's ecosystems in a concise format. - Provides an overview of the world's ecosystems in a concise format - Covers aquatic and terrestrial ecosystems - Based on the best-selling Encyclopedia of Ecology - Full-color figures and tables support the text and aid in understanding