Agrindex

Agrindex
Author:
Publisher:
Total Pages: 820
Release: 1992
Genre: Agriculture
ISBN:

Forest management and the impact on water resources

Forest management and the impact on water resources
Author: GarcĂ­a Chevesich, Pablo
Publisher: UNESCO Publishing
Total Pages: 197
Release: 2017-04-24
Genre: Forest management
ISBN: 9231002163

Trees have been around for more than 370 million years, and today there are about 80 thousand species of them, occupying 3.5 billion hectares worldwide, including 250 million ha of commercial plantations. While forests can provide tremendous environmental, social, and economic benefits to nations, they also affect the hydrologic cycle in different ways. As the demand for water grows and local precipitation patterns change due to global warming, plantation forestry has encountered an increasing number of water-related conflicts worldwide. This document provides a country-by-country summary of the current state of knowledge on the relationship between forest management and water resources. Based on available research publications, the Editor-in-Chief of this document contacted local scientists from countries where the impact of forest management on water resources is an issue, inviting them to submit a chapter.

North American Rodents

North American Rodents
Author: David J. Hafner
Publisher: IUCN
Total Pages: 188
Release: 1998
Genre: Nature
ISBN: 9782831704630

The first comprehensive treatment of North American rodents of conservation concern. This action plan summarizes the rodent fauna of North America and provides available information on every rodent taxon that has been considered to be of conservation concern by state, provincial and private conservation agencies and regional experts. It is hoped that the survey provided in this action plan will serve as a common ground for all these parties in drawing up conservation strategies for rodents.

Ecological Regions of North America

Ecological Regions of North America
Author:
Publisher:
Total Pages: 92
Release: 1997
Genre: Biogeography
ISBN:

This volume represents a first attempt at holistically classifying and mapping ecological regions across all three countries of the North American continent. A common analytical methodology is used to examine North American ecology at multiple scales, from large continental ecosystems to subdivisions of these that correlate more detailed physical and biological settings with human activities on two levels of successively smaller units. The volume begins with an overview of North America from an ecological perspective, concepts of ecological regionalization. This is followed by descriptions of the 15 broad ecological regions, including information on physical and biological setting and human activities. The final section presents case studies in applications of the ecological characterization methodology to environmental issues. The appendix includes a list of common and scientific names of selected species characteristic of the ecological regions.