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There are 9, 789 content items of different types and languages related to uso da terra on the Land Portal.

uso da terra

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Towards the identification and assessment of HNV Dehesas: a meso-scale approach

Journal Articles & Books
Dezembro, 2016
Espanha
Europa

Iberian dehesa and montado are paradigmatic high nature value (HNV) agroforestry systems in Europe. Nevertheless their conservation status is uncertain as a consequence of their typological variety, different intensity of management practices on the ground, and other ongoing processes challenging their long-term sustainability. The existing broad gradients of dehesa and montado types impose difficulties in estimating not only their distribution and extent, but also their condition, since probably not all these agroforestry systems should readily be considered as HNV.

Characterization of enclosure management regimes and factors influencing their choice among agropastoralists in North-Western Kenya

Journal Articles & Books
Dezembro, 2015
África

The enclosure system is an increasingly popular approach for land rehabilitation among communities inhabiting the arid and semi-arid lands in Africa. However, the mixed results associated with its adoption by households call for an in-depth understanding of the management regimes.

Spatial Assessment of Soil Organic Carbon Density Through Random Forests Based Imputation

Journal Articles & Books
Dezembro, 2014
Índia

Regional estimates of soil carbon pool have been made using various approaches that combine soil maps with sample databases. The point soil organic carbon (SOC) densities are spatialized employing approaches like regression, spatial interpolation, polygon based summation, etc. The present work investigates a data mining based spatial imputation for spatial assessment of soil organic carbon density. The study area covers Andhra Pradesh and Karnataka states of India.

Long-term trends in streamflow from semiarid rangelands: uncovering drivers of change

Journal Articles & Books
Dezembro, 2008

In the last 100 years or so, desertification, degradation, and woody plant encroachment have altered huge tracts of semiarid rangelands. It is expected that the changes thus brought about significantly affect water balance in these regions; and in fact, at the headwater-catchment and smaller scales, such effects are reasonably well documented. For larger scales, however, there is surprisingly little documentation of hydrological change.

Indirect Land Use Change: a second best solution to a first class problem

Policy Papers & Briefs
Outubro, 2010

Concern about the possible affects of biofuels on deforestation have led toassigning biofuel producers with the responsibility for greenhouse gas (GHG)emissions of the indirect land use changes (ILUC) associated with their activitieswhen assessing their compliance with biofuel policies. We show that the computation of the ILUC is shrouded with uncertainty; they vary frequently, and are strongly affected by policy choices. It seems that its overall impact on GHGs is relatively minor.

Prediction of Land Cover Change Using Markov and Cellular Automata Models: Case of Al-Ain, UAE, 1992-2030

Journal Articles & Books
Dezembro, 2014

The UAE has witnessed rapid urban development and economic growth in recent years. With its ambitious vision to become one of the advanced nations by 2021, planners and policy-makers need to know the most likely direction of future urban development. In this study, remotely sensed imagery coupled with cellular automata models were used to predict land cover in Al Ain, the second largest city in the Emirate of Abu Dhabi. Markov and cellular automata models were used for 1992 and 2006 to predict land cover in 2012.

Automated Approach for Land Cover Classification Based on a Fuzzy Supervised Learning Framework

Journal Articles & Books
Dezembro, 2014

This paper proposes an automatic framework for land cover classification. In majority of published work by various researchers so far, most of the methods need manually mark the label of land cover types. In the proposed framework, all the information, like land cover types and their features, is defined as prior knowledge achieved from land use maps, topographic data, texture data, vegetation’s growth cycle and field data.

alternative approach for delineating eco-sensitive zones around a wildlife sanctuary applying geospatial techniques

Journal Articles & Books
Dezembro, 2014
Índia

The dynamics, degradation, and conservation of forest ecosystems are matters of prime concerns worldwide at the present. Proper planning and management of a forest area are essentially needed to protect it from the grasp of burgeoning pressure of urban-industrial sprawl. Establishment of eco-sensitive zones (ESZs), which act as buffer areas around the core forests, is one of the key approaches towards achieving this goal.

Quantifying the synergistic effect of the precipitation and land use on sandy desertification at county level: A case study in Naiman Banner, northern China

Journal Articles & Books
Dezembro, 2013
China

Assessing the driving forces of sandy desertification is fundamental and important for its control. It has been widely accepted that both climatic conditions and land use have great impact on sandy desertification in northern China. However, the relative role and synergistic effect of each driving force of sandy desertification are still not clear. In this paper, an indicator named as SI was defined to represent the integrated probability of sandy desertification caused by land use.

Impact of rainwater harvesting on water resources of the modder river basin, central region of South Africa

Journal Articles & Books
Dezembro, 2013
África do Sul
África austral

Along the path of water flowing in a river basin are many water-related human interventions that modify the natural systems. Rainwater harvesting is one such intervention that involves collecting and use of surface runoff for different purpose in the upstream catchment. Increased water consumption at upstream level is an issue of concern for downstream water availability to sustain ecosystem services.

Forest land transformation in Latvia: resume of the PhD paper for the scientific degree of Dr.silv. in Forest Economic and Policy

Policy Papers & Briefs
Dezembro, 2008
Letónia

The Promotional Paper Forest Land Transformation in Latvia by Gunta Bāra has been developed at the Forest Faculty of the Latvian University of Agriculture between 2001 and 2007. Goal of the Promotional Paper: to identify the main problems in transformation of forest land in the Republic of Latvia and gaps in legislative instruments regulating the process of change of land use type, to prepare recommendations for their elimination, to develop a methodology for calculation of compensation for the losses caused to the state as a result of destruction of natural forest environment.