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Drainage and agriculture impacts on fire frequency in a southern Illinois forested bottomland

Journal Articles & Books
Décembre, 2008
États-Unis d'Amérique

Postsettlement (1909-2003) fire history of a forested bottomland in the Mississippi Embayment of southern Illinois, USA, was determined using fire-scar analysis. The study area is a forested bottomland hardwood site, with remnant pockets of the dominant presettlement bald cypress - tupelo (Taxodium-Nyssa) vegetation. Ditch drainage was installed in 1919, with agricultural clearing and abandonment varying throughout the early and mid-twentieth century. Commercial agricultural activities ceased after the site became part of a conservation area ca. 1950.

Agros International white paper: a review of land reform methods

Décembre, 2007

This white paper looks at one example of private land reform, Agros International, within the context of the global and historical scope of land reform methods.The paper states that methods of land reform can be understood within three general categories: government-directed reform, popular social mobilization, and market -based reform. However, despite the many benefits of secure land access, the application of effective land reform has proven difficult and rare.

Amelioration and nutrient management strategies for sodic and alkali soils.CAB Reviews

Journal Articles & Books
Décembre, 2007

Sodic and alkali soils are characterized by the occurrence of excess sodium (Nasup+/sup) to levels that can adversely affect soil structure and disturb the availability of nutrients for plant growth. Structural problems in these soils are created by certain physical processes (slaking, swelling and dispersion of clay minerals) and specific conditions (surface crusting and hardsetting), which affect water and air movement, seedling emergence, root penetration, runoff and erosion, as well as tillage and sowing operations.

Coastal protection in the aftermath of the Indian Ocean tsunami: What role for forests and trees?

Journal Articles & Books
Novembre, 2007
Bangladesh
Finlande
Malaisie
Myanmar
Indonésie
Inde
Sri Lanka
Maldives
Thaïlande
Nouvelle-Zélande
Asie
Océanie

Following the widespread wreckage and loss of life caused by the Indian Ocean tsunami of 26 December 2004, unprecedented efforts where made to restore order and rebuild the lives and livelihoods of the millions affected. A proportion of the reconstruction and rehabilitation effort was focused on environmental rehabilitation and a part of this again on the rehabilitation of coastal trees and forests. Many programmes were implemented during the post-tsunami period to restore coastal trees and forests, and in particular mangrove forests.

Relevance of the World Social Forum to the Kenyan Situation

Policy Papers & Briefs
Janvier, 2007
Kenya

The World Social Forum in Nairobi in January 2007 was a timely New Year rallying event for Kenyans to revisit the fundamental principles for building a democratic and sustainable society as we prepare for December 2007 elections.The current organizing principles of the institutions that govern us in Kenya are narrow and serve the few at the expense of the many millions of Kenyans that live in abject poverty. Yet, from all corners of the country it is acknowledged that it is within our collective ability to create a healthy and sustainable society that serves and work for all

Amelioration strategies for salinity-induced land degradation.CAB Reviews

Journal Articles & Books
Décembre, 2006

Salinization of soils is a major impediment to their optimal utilization in many arid and semi-arid regions throughout the world. In several large irrigation schemes, salinity-induced land degradation has increased steadily over the last few decades with concurrent reductions in agricultural productivity and sustainability. Currently, saline soils occur within at least 100 countries. These soils need explicit approaches in their amelioration since soil salinization cannot be reduced by routine irrigation and crop management practices.

Property rights, land fragmentation and the emerging structure of agriculture in Central and Eastern European countries

Journal Articles & Books
Novembre, 2006
Slovénie
États-Unis d'Amérique
Israël
Allemagne
Bulgarie
Autriche
Lituanie
Bosnie-Herzégovine
Paraguay
Hongrie
Albanie
Roumanie
Pologne
Géorgie
Arménie
Brésil
Europe

This paper offers an overview of land reform processes in the CEECs and their outcomes and impacts and analyzes current and emerging structures in rural areas. Different types of land consolidation are defined and their potential impacts are assessed. The paper then looks in depth at land consolidation processes, especially in the context of land management, and outlines preconditions and cornerstones for various approaches. Environmental aspects and principles for land funds and land banking are also drawn in.

Global planted forests thematic study: Results and analysis

Reports & Research
Novembre, 2006
Algérie
France
États-Unis d'Amérique
Chili
Ukraine
Chine
Indonésie
Bulgarie
Royaume-Uni
Iran
Italie
Nouvelle-Zélande
Philippines
Afrique du Sud
Malaisie
Japon
Australie
Myanmar
Argentine
Inde
Turquie
Brésil

Globally, according to FRA 2000, planted forests account ed for only 5% of forest area, but up to 35% of industrial roundwood supply. This is anticipated to rise to 40-44% by 2020. Planted forests reflect a higher social, environmental and economic importance than their area would suggest. Many countries have existing planted forest data that is not based upon forest inventory, is incomplete and often outdated. Thus it is difficult to measure and plan the quantity and quality of planted forest resources and the provision of goods and services that they supply.

Drainage systems and their water management function with regard to probable climatic and hydrological changes

Policy Papers & Briefs
Mars, 2006
République tchèque

Some scenarios of probable climatic changes in the Czech Republic and the anticipated effect of these changes on the components of the hydrologic water discharge from drained agricultural and forest catchments are studied. The function of drainage systems on selected experimental lands is examined. The effect of climatic changes on the hydrologic balance and/or on the runoff from the catchments significantly varies up to +/-150% provided that we compare the average runoff.