Passar para o conteúdo principal

page search

Displaying 121 - 132 of 262
Journal Articles & Books
Dezembro 2011

Methods for the estimation of forest growing stock volume (GSV) are a major topic of investigation in the remote sensing community. The boreal zone contains almost 30% of global forest by area but measurements of forest resources are often outdated. Although past and current spaceborne synthetic…

Journal Articles & Books
Dezembro 2011

Carl Malmström's historical forest maps of the province of Halland, in south-western Sweden, were published over 70 years ago, but are still important to science and conservation. They show the transformation of a seventeenth century landscape of temperate broadleaves to a landscape…

Journal Articles & Books
Dezembro 2011

The objective of this review paper is to analyze the efficiency of environmentally motivated taxes on virgin raw materials. We analyze both the economic–theoretical foundations of virgin natural resource taxation, and the empirical experiences of aggregates taxes i.e., taxes on, for instance,…

Journal Articles & Books
Dezembro 2011

The landscape-level and multiscale biodiversity monitoring program National Inventory of Landscapes in Sweden (NILS) was launched in 2003. NILS is conducted as a sample-based stratified inventory that acquires data across several spatial scales, which is accomplished by combining aerial photo…

Policy Papers & Briefs
Novembro 2011

Unprecedented pressures on land have been created as new areas are cultivated, taken over by expanding urban centres or are abandoned due to degradation, climate change and conflict. These developments have strained the rules, processes and institutions that determine which land resources are…

Journal Articles & Books
Novembro 2011

In this issue, we look at a new publication entitled â¿¿Payments for ecosystem services and food securityâ¿¿. This document was produced as part of preparatory process for FAOâ¿¿s participation in the Rio+20 event to be held in 2012. We also look ahead to World Water Week to be held 21-27…

Journal Articles & Books
Novembro 2011

El presente manual es una guía para la formulación de reglamentos nacionales para la gestión, aprovechamiento y conservación de los recursos hídricos. La materia es tratada acorde a las principales funciones de la gestión del agua e ilustrada con ejemplos extraídos de reglamentos hídricos…

Journal Articles & Books
Novembro 2011

Dans ce numéro, nous examinerons une nouvelle publication intitulée « Paiements pour services environnementaux et sécurité alimentaire ». Ce document a été produit dans le cadre du processus de préparation de la Conférence Rio+20, prévue en 2012. Nous nous projetterons également dans la semaine…

Journal Articles & Books
Novembro 2011

En este número nos proponemos examinar una nueva publicación intitulada Payments for ecosystem services and food security («Pagos por servicios del ecosistema y seguridad alimentaria»). Este documento forma parte del proceso preparatorio de participación de la FAO en Río+20, un acontecimiento…

Policy Papers & Briefs
Julho 2011

Great share of rented land in total utilised area as well as a significant variability of land rent and market prices of land causes a need of research that would assess which factors influence the land rent as well as the price of land and how significant such factor are in each state. The…

Journal Articles & Books
Fevereiro 2011

Changing and competing land use, where we make use of a growing share of resources, potentially undermines the capacity of forests to provide multiple functions such as timber, biodiversity, recreation and pasture lands. The governance challenge is thus to manage trade-offs between human needs…