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Displaying 3529 - 3540 of 6741

Web-based system for vineyards management, relating inventory data, vectors and images

Journal Articles & Books
December, 2010
Brazil

A Web-based system is presented, integrating spatial information from remote sensing images, GPS measurements and inventory data. Monitoring, research and management of the grape production at Rio Grande do Sul State, Brazil (624,000 metric tons in 2006) can be done through a system entirely based in open-source codes.

Long-term avian research at the San Joaquin Experimental Range: Recommendations for monitoring and managing oak woodlands

Journal Articles & Books
December, 2011
Northern America

Experimental forests and ranges are living laboratories that provide opportunities for conducting scientific research and transferring research results to partners and stakeholders. They are invaluable for their long-term data and capacity to foster collaborative, interdisciplinary research. The San Joaquin Experimental Range (SJER) was established to develop appropriate land management practices on foothill rangelands in California. SJER has a long and rich history of avian research.

Management strategies for maximizing carbon storage and tree species diversity in cocoa-growing landscapes

Journal Articles & Books
December, 2010

How do we manage the trade-offs between agricultural yields, biodiversity and ecosystem services? One option is to adopt high yield, intensive farming that allows land to be spared elsewhere for conservation (land sparing); another is to adopt low yield, extensive farming over a greater area that retains more biodiversity and protects ecosystem services (wildlife-friendly farming). We examine which is likely to be the best option to achieve high carbon storage and tree species richness in tropical cocoa-growing landscapes.

Bracken distribution in Great Britain: strategies for its control and the sustainable management of marginal land

Journal Articles & Books
December, 2000

Bracken is often perceived as a widespread and increasing land management problem. The pollen record of a wide range of sites in Great Britain suggests that the current abundance of bracken is less than or, at worst, equivalent to maximum historical levels. Recently gathered data also suggest that bracken cover is declining. Results of risk assessments of land use change, and experimental and modelling investigations into the effects of climate change are synthesized.

Woodland habitat structures are affected by both agricultural land management and abiotic conditions

Journal Articles & Books
December, 2015
Australia

CONTEXT: The identification of habitat structures with biologically meaningful links to habitat quality has enabled an increased understanding of wildlife distributions in fragmented landscapes. However, knowledge is lacking of where these structures occur in the landscape. OBJECTIVES: For a broad-scale agricultural landscape, we investigated how the occurrence and abundance of wildlife habitat structures is related to abiotic conditions and land management practices, and whether this differed between old growth and regrowth woodland.

Hydrological modelling of drained blanket peatland

Journal Articles & Books
December, 2011

Open ditch drainage is a commonly implemented land management practice in upland blanket peatlands, particularly in the UK, where policy decisions between the 1940s and 1970s led to widespread drainage of the uplands. The change in the hydrological regime associated with the drainage of blanket peat is poorly understood, yet has perceived importance for flooding, low flows and water quality. We propose a new simplified physics-based model that allows the associated hydrological processes and flow responses to be explored.

Multi‐Taxa Assessment of Biodiversity Change After Single and Recurrent Wildfires in a Brazilian Amazon Forest

Journal Articles & Books
December, 2016

In the last decades, due to human land management that uses fire as a tool, and due to abnormal droughts, many tropical forests have become more susceptible to recurrent wildfires with negative consequences for biodiversity. Yet, studies are usually focused on few taxa and rarely compare different fire frequencies. We examined if the effects of single and recurrent fires are consistent for leaf litter ants, dung beetles, birds (sampled with point‐counts PC and mist net‐MN), saplings, and trees.

Fine-scale temporal characterization of trends in soil water dissolved organic carbon and potential drivers

Journal Articles & Books
December, 2016

Long-term monitoring of surface water quality has shown increasing concentrations of dissolved organic carbon (DOC) across a large part of the Northern Hemisphere. Several drivers have been implicated including climate change, land management change, nitrogen and sulphur deposition and CO2 enrichment.

Effects of large native herbivores on other animals

Journal Articles & Books
December, 2014

Large mammalian herbivores are major drivers of the structure and function of terrestrial ecosystems world‐wide, and changes in their abundance have resulted in many populations being actively managed. Many empirical studies have identified that abundant mammalian herbivores can have negative impacts on biodiversity, but there has been no specific review of the impacts of native mammalian herbivores. We assessed the peer‐reviewed literature on the effects of large native herbivores on other animals.

The forests of the Gornji grad estate in a tradional way of husbandry and unsuccesful trials of introduction a rational forest management in the period of transition from the eighteenth to nineteenth century

Policy Papers & Briefs
December, 2009

The estate Gornji grad, since 1462 in the ownership in the diocese of Ljubljana, owned for centuries large forests and leasehold pastures. They were managaed in a traditional way with the servitude or otherwise acquired rights of the bondsmen, applying selected felling of the trees, mostly without allocation to the bondsmen or by increasing the acreage of the pasture on the expense of that of the forests as well as in many other ways. All this finally resulted, although unintentionally, in the benefit of the bondsmen.

Scale effects on the estimation of erosion thresholds through a distributed and physically-based hydrological model

Journal Articles & Books
December, 2012

Slope incision and subsequent development of rills, gullies and channels are responsible for significant soil losses and are often irreversible with very high restoration costs particularly in semiarid environments. The location of potential areas of erosion where these processes occur is vital to land management and conservation.