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Issuesterras de pastagemLandLibrary Resource
There are 2, 164 content items of different types and languages related to terras de pastagem on the Land Portal.

terras de pastagem

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Displaying 97 - 108 of 1813

Evaluation of Landscape-Level Grazing Capacity for Domestic Sheep in Alpine Rangelands

Journal Articles & Books
Dezembro, 2014
Noruega

Balancing the number of grazing animals with the level of plant resources is a core issue in grazing management. Complete, full-coverage vegetation surveys are often used for this purpose, but these are expensive undertakings. We have presented a method to downscale information from regional sampling surveys by poststratification using a land cover map derived from satellite-based measures of reflectance values. This approach opens new prospects for landscape-level evaluation of productivity.

Rangeland ecosystem services: shifting focus from supply to reconciling supply and demand

Journal Articles & Books
Dezembro, 2015

Ecosystem services have been extensively studied in terms of their production, spatial extent, and valuation. Human reliance on ecosystem services is a function of the capacity of ecosystems to supply these services and the societal demand for these benefits. Considerably more attention has been placed on the supply of services compared with their demand. Sustainable land management depends on reconciling supply of and demand for ecosystem services among different stakeholders. The emphasis is now shifting from the supply to the attaining of a balance between supply and demand.

Deforestation of degraded rangelands: The Argentine Chaco enters the next state of the Anthropocene

Journal Articles & Books
Dezembro, 2014
Argentina

Twenty years ago I completed my Master’s work in the Chaco forests of northern Argentina. The native forests are, in fact, rangelands. In addition to livestock grazing, there is timber extraction, wildlife harvest (think tegu lizard cowboy boots), and charcoal production. I took part in a project comparing biodiversity among production systems. A new system promised to reverse biodiversity loss and soil degradation. But it’s a moot point now since much of that forest has been cleared for cropland—the highest rate of tropical forest loss in the world.

Human Infrastructure and Invasive Plant Occurrence Across Rangelands of Southwestern Wyoming, USA

Journal Articles & Books
Dezembro, 2014
Estados Unidos

Although human influence across rural landscapes is often discussed, interactions between the native, natural systems and human activities are challenging to measure explicitly. We assessed the distribution of introduced, invasive species as related to anthropogenic infrastructure and environmental conditions across southwestern Wyoming. to discern direct correlations as well as covariate influences between land use, land cover, and abundance of invasive plants, and assess the supposition that these features affect surrounding rangeland conditions.

Perceptions of Texas Landowners Regarding Fire and Its Use

Journal Articles & Books
Dezembro, 2008

Growing recognition that periodic fire is critical for maintaining the health of many rangeland ecosystems and concerns over more frequent catastrophic wildfires have focused attention on prescribed fire as an ecosystem restoration and fuel management tool. In states such as Texas, where most land is privately owned, the level of success of outreach activities aimed at expanding the adoption of specific management practices is influenced by the extent to which landowners' perceptions, interests, and concerns regarding such practices are addressed.

Object-Based Image Analysis of Pinyon and Juniper Woodlands Treated to Reduce Fuels

Journal Articles & Books
Dezembro, 2014

Mechanical and prescribed fire treatments are commonly used to reduce fuel loads and maintain or restore sagebrush steppe rangelands across the Great Basin where pinyon (Pinus) and juniper (Juniperus) trees are encroaching and infilling. Geospatial technologies, particularly remote sensing, could potentially be used in these ecosystems to (1) evaluate the longevity of fuel reduction treatments, (2) provide data for planning and designing future fuel-reduction treatments, and (3) assess the spatial distribution of horizontal fuel structure following fuel-reduction treatments.

Asymmetric Ecological and Economic Responses for Rangeland Restoration: A Case Study of Tree Thickening in Queensland, Australia

Journal Articles & Books
Dezembro, 2014
Austrália

Economic motivation for implementing targeted responses to rangeland degradation often lag the events that cause degradation and existing monitoring schemes often lack the sensitivity or the connections to ecological processes to reliably serve as a basis for evaluating success. In this paper, we present an approach for quantifying the relationship of economic output and land degradation during the intermediate stages of degradation. We also propose an approach that can provide enhanced incentives to implement proven responses before degradation processes are entrained.

Winter Bird Habitat Use in a Heterogeneous Tallgrass Prairie

Journal Articles & Books
Dezembro, 2014

In the Flint Hills of Kansas and Oklahoma, U.S.A., grazing land is managed predominantly to promote homogeneous grassland structure. This potentially limits the diversity of habitats for grassland obligate songbirds with narrow habitat preferences during the breeding season, prompting ecologists and conservationists to call for managing rangelands for increased heterogeneity. The Flint Hills also hosts multiple species of conservation concern during winter, but avian habitat requirements are less well known during this period and seldom considered in management recommendations.

Formal institutions and their role in promoting sustainable land management in boteti, botswana

Journal Articles & Books
Dezembro, 2014
Botswana

The aim of this paper is to discuss the role of existing policies, programmes and legislation in promoting sustainable land management and livelihoods in mid‐central Botswana. The paper is based on data from the survey of relevant literature, analysis of policy and legal documents, field observations and a series of stakeholder workshops held in the villages of Mopipi, Mokobaxane and Rakops in Boteti Sub‐District between 2008 and 2009.

conservation auction for landscape linkage in the southern Desert Uplands, Queensland

Journal Articles & Books
Dezembro, 2009

Conservation auctions are a type of market-based instrument (MBI) that can achieve a more cost-efficient allocation of public funds than approaches such as devolved grants. In this paper, the conduct of a multiple round conservation auction to improve biodiversity management in a rangelands area is outlined. The auction was designed to develop a wildlife corridor across the southern Desert Uplands bioregion in Queensland and to improve management of rangelands areas. The conservation auction incorporated two important new design features.

Tradeoffs in the Rehabilitation of a Succulent Karoo Rangeland

Journal Articles & Books
Dezembro, 2015
África do Sul
África austral

Rangeland rehabilitation has multiple, sometimes conflicting goals, such as the reestablishment of the predisturbance vegetation, soil protection, and forage production. The rehabilitation techniques should be also cost‐effective and practicable. Given the difficulties and high costs of restoring Succulent Karoo rangelands and the continuously high grazing pressure in the communal lands, tradeoffs should be accepted in the achievement of these goals.