Invasive weeds are a large problem on large tracts of rangeland in North America. Biological methods of control have been instituted, but many information gaps remain. An investment model approach is used to demonstrate some of the potentially key pieces of biological data that are required for an analysis. This model is applied to the control of leafy spurge on rangeland. The results of control are very dependent on the rate of spread and control by the biological control agent, the initial density of the weed, and the recovery of the forage (grass) after the weed has been controlled.

While theory strongly suggests that restricting development rights should reduce land prices, empirical evidence of this effect has been notoriously hard to obtain. Indeed, largely based on this difficulty a Congressional committee has recently recommended that tax benefits for such restrictions be severely curtailed. We collect data on 131 land transactions in South Central Wisconsin, including 19 cases of developmentrestricted parcels.

The growing body of literature devoted to study the impact of inequality on economic growth have centred its attention in the income distribution effect, even though the theoretical relationships are more related to assets distributions than to income distribution. While some recent studies have tried to overcome this limitation by introducing indicators of this type, they found a new constraint when dealing only with time-invariant measurements for this explanatory variable.

In this paper we argue that the loss of bio-diversity hould be of concern for farmers, though it seems to be of little or no concern to them at the moment. As diversity is a component of nature that controls the growth of pests, a loss of bio-diversity means increased exposure to pests, danger of crop failures and, in the long run, lower average yields and profits. So far farmers buy costly pesticides for compensating the reduction of bio-diversity.

The challenges of achieving both food security and sustainability have resulted in a confluence of demands on land within the European Union: we expect our land to provide food, purify water, sequester carbon, and provide a home to biodiversity and to external nutrients. All soils perform all these five functions, but some soils ‘are better at’ supplying selective functions. Functional Land Management is a framework for policy making aimed at meeting these demands by incentivising soil management and land use practices that selectively augment specific soil functions, where required.

The article presents the analysis of the terms of land administration contained in the texts published in Latvia and the United Kingdom. The aim is to compare the terms used in Latvian texts, their translations in the English language with the terms used in authentic English texts, to identify the most controversial cases and to provide the explanation of the problem arising in working with the English terminology of land administration.

Forest is an important natural resource to the Latvian economy. It is useful to examine the historical context to estimate objectively the events that created the structure of forest property rights today. While 50.3% of all Latvian forests are state-owned and the remaining 49.7% are under different ownership, historically this structure has changed with the political situation and the authorities.

This paper proposed a methodological framework for the assessment of carbon stocks and the development and identification of land use, land use change and land management scenarios, whereby enhancing carbon sequestration synergistically increases biodiversity, the prevention of land degradation and food security through the increases in crop yields. The framework integrates satellite image interpretation, computer modelling tools (i.e. software customization of off-the-shelf soil organic matter turnover simulation models) and Geographical Information Systems (GIS).

Since 1982, the New Castle County Superior Court in Delaware has promoted mediation, which attempts to resolve filed conflicts prior to trial. This paper evaluates how spatial land-use conflicts channel through mediation and litigation. Data suggest that mediations fail because one of the key disputing parties does not play a direct role in mediation and litigation. The data then inform a predictive model of litigated outcomes in which disputants share in the responsibility for conflict.

Development in rural-urban fringe communities is increasing with the potential to damage healthy ecosystems and endanger the long-term persistence of resident flora and fauna. The environmental impacts of development include loss, degradation, and fragmentation of wildlife habitat, increased air and water pollution, increased soil erosion, and decreased aesthetic appeal of the landscape. Current land use policies rarely incorporate features of landscape-scale ecosystem health.

Este trabajo calcula el valor del regadío en la provincia de León a partir de datos de precios de la tierra desagregados por aprovechamiento y comarca. El valor de los beneficios asociados al regadío puede averiguarse comparando dos parcelas de tierra "iguales" excepto por el hecho de que una de las tierras sea de secano y la otra de regadío.