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There are 8, 235 content items of different types and languages related to administração fundiária on the Land Portal.
Displaying 3217 - 3228 of 5229

Applying ecologically based invasive-plant management

Journal Articles & Books
Dezembro, 2010

The need for a unified mechanistic ecological framework that improves our ability to make decisions, predicts vegetation change, guides the implementation of restoration, and fosters learning is substantial and unmet. It is becoming increasingly clear that integrating various types of ecological models into an overall framework has great promise for assisting decision making in invasive-plant management and restoration.

Report in Brief: Assessing Botanical Capacity to Address Grand Challenges in the United States

Journal Articles & Books
Dezembro, 2015
Estados Unidos

Botanical capacity plays a fundamental role in solving the grand challenges of the next century, including climate change, sustainability, food security, preservation of ecosystem services, conservation of threatened species, and control of invasive species. Yet critical components of botanical education, research, and management are lacking across government, academic, and private sectors.

Erosion modelling approach to simulate the effect of land management options on soil loss by considering catenary soil development and farmers perception

Journal Articles & Books
Dezembro, 2008

The prevention of soil erosion is one of the most essential requirements for sustainable agriculture in developing countries. In recent years it is widely recognized that more site-specific approaches are needed to assess variations in erosion susceptibility in order to select the most suitable land management methods for individual hillslope sections. This study quantifies the influence of different land management methods on soil erosion by modelling soil loss for individual soil-landscape units on a hillslope in Southern Uganda.

Restoration of Ecosystem Carbon Stocks Following Exclosure Establishment in Communal Grazing Lands in Tigray, Ethiopia

Journal Articles & Books
Dezembro, 2011
Etiópia

Degraded lands are common in human-influenced tropical semiarid areas, and the potential for C sequestration through rehabilitation of these areas is substantial. In this study, we investigated changes in ecosystem C stocks (ECS) after establishing exclosures on degraded communal grazing lands, and identified easily measurable biophysical and management-related factors that can be used to predict ECS restoration in the highlands of Tigray, Ethiopia. We selected replicated (n = 3) 5-, 10-, 15-, and 20-yr-old exclosures and paired each exclosure with an adjacent communal grazing land.

Soil properties, crop production and greenhouse gas emissions from organic and inorganic fertilizer-based arable cropping systems

Journal Articles & Books
Dezembro, 2010
Dinamarca

Organic and conventional farming practices differ in the use of several management strategies, including use of catch crops, green manure, and fertilization, which may influence soil properties, greenhouse gas emissions and productivity of agroecosystems. An 11-yr-old field experiment on a sandy loam soil in Denmark was used to compare several crop rotations with respect to a range of physical, chemical and biological characteristics related to carbon (C) and nitrogen (N) flows.

Building plot-land discrimination in expropriation cases

Journal Articles & Books
Dezembro, 2011
Turquia

In recent years, infrastructure investments, especially construction of new roads and upgrading of existing ones, have accelerated in Turkey. Expropriation cases related to building plot and land have increased due to these investments. One subject causes conflict and leads to the prolongation of cases due to the misuse of building plot-land discrimination.

How natural disturbance triggers political conflict: Bark beetles and the meaning of landscape in the Bavarian Forest

Journal Articles & Books
Dezembro, 2011
Alemanha

The incidence of natural disturbance in forests is increasing globally as a consequence of global warming. The concomitant large-scale transformation of landscapes can have profound social impacts and trigger political conflict that hampers resource management. This paper explores the link between landscape transformations and political conflict using the example of the bark beetle epidemic in Bavarian Forest National Park, Germany.

Modeling wetland change in Spain’s Tierra de Campos district

Journal Articles & Books
Dezembro, 2016
Espanha

The various land management and planning policies that have been developed for the Tierra de Campos district of northwestern Spain over the past century have had major effects on wetland ecosystems of this area. To assist conservation planners in the future management of these habitats, this study outlines the changes that have occurred in these environments using data for the years 1900, 1956, 1984 and 2007. Multiple logistic regression models allowed the accurate projection of locations of wetlands that need to be restored or regenerated.

Relative effects of climate change and wildfires on stream temperatures: a simulation modeling approach in a Rocky Mountain watershed

Journal Articles & Books
Dezembro, 2014

Freshwater ecosystems are warming globally from the direct effects of climate change on air temperature and hydrology and the indirect effects on near-stream vegetation. In fire-prone landscapes, vegetative change may be especially rapid and cause significant local stream temperature increases but the importance of these increases relative to broader changes associated with air temperature and hydrology are not well understood.