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From the research results and discussions presented in this book it becomes clear that a profound understanding of the various interrelationships of the nutritional aspects allows the implementation of specific management strategies to improve stability and productivity of forest ecosystems. In particular the effects of environmental changes as related to the impacts of air pollution, global change and land use on nutrient uptake and cycling processes in forest ecosystems are dealt with in detail. The book is divided into six main issues and each topic contains reviews as well as selected results of recent studies.
Forest ecosystem is a self-sustaining functional unit of nature wherein living organisms interact among themselves and with the surrounding physical environment. It is a type of terrestrial ecosystem. Both biotic and abiotic elements such as soil, trees, insects, animals, birds and humans are a part of the forest ecosystem. There are four major components of a forest ecosystem, namely, productivity, decomposition, energy flow, and nutrient uptake and cycling. Nutrient cycle refers to a system that involves the movement of substances and energy between living organisms and non-living elements of the environment. This happens when plants and animals ingest nutrients present in the soil, which are then released back into the ecosystem after they die and decompose. Nutrient cycling is crucial for meeting the nutrient supply of plants in the forest and increasing productivity of forests. This book unfolds the important aspects of nutrient uptake and cycling in forest ecosystems, which will be crucial to develop a complete understanding of the subject matter. It is a resource guide for experts as well as students.
The long-term productivity of forest ecosystems depends on the cycling of nutrients. The effect of carbon dioxide fertilization on forest productivity may ultimately be limited by the rate of nutrient cycling. Contemporary and future disturbances such as climatic warming, N-deposition, deforestation, short rotation sylviculture, fire (both wild and controlled), and the invasion of exotic species all place strains on the integrity of ecosystem nutrient cycling. Global differences in climate, soils, and species make it difficult to extrapolate even a single important study worldwide. Despite advances in the understanding of nutrient cycling and carbon production in forests, many questions remain. The chapters in this volume reflect many contemporary research priorities. The thirteen studies in this volume are arranged in the following subject groups: • N and P resorption from foliage worldwide, along chronosequences and along elevation gradients; • Litter production and decomposition; • N and P stoichiometry as affected by N deposition, geographic gradients, species changes, and ecosystem restoration; • Effects of N and P addition on understory biomass, litter, and soil; • Effects of burning on soil nutrients; • Effects of N addition on soil fauna.
This book is a printed edition of the Special Issue "Urban and Periurban Forest Diversity and Ecosystem Services" that was published in Forests
A source of information for environmental scientists involved in research of the inputs, cycling and losses of nutrients in terrestrial ecosystems. A division has been made into a series of sections, dealing in turn with inputs, losses, turnover and plant uptake
This volume quantifies carbon storage in managed forest ecosystems not only in biomass, but also in all soil compartments. It investigates the interaction between the carbon and nitrogen cycles by working along a north-south transect through Europe that starts in northern Sweden, passes through a N-deposition maximum in central Europe and ends in Italy. For the first time biogeochemical processes are linked to biodiversity on a large geographic scale and with special focus on soil organisms. The accompanying CD-ROM provides a complete database of all flux, storage and species observations for modellers.