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Showing items 1 through 9 of 33.
  1. Library Resource
    Journal Articles & Books
    December, 2005
    Chile

    Farm production is surrounded by uncertainty. Between planting and harvesting manyrandom events such as plagues, droughts and sudden changes in commodity prices, may affectfarmers’ revenues. Agriculture in arid and semi-arid zones is highly dependent on rainfall, whichintroduces an additional risk during droughts. This research posits the hypothesis that watermanagement in agriculture during droughts strongly depends on the risks farmers face and ontheir expectations, based on past drought experiences.

  2. Library Resource
    Journal Articles & Books
    December, 2009
    Chile

    Approximately 80% of the world’s agricultural landpresents moderate levels of erosion. In Chile, the risks related to soil erosion are greater in thepre Andean mountain areas or coastal dry-lands. However, there are also indications of low levelsof erosion in the Central Valley which, given the importance of this region for the country’sagricultural sector, should be taken seriously to avoid a worsening of the situation. This articleexamines the association of natural, social, human and fi nancial capital variables with the adoptionof soil conservation practices in Linares, Chile.

  3. Library Resource
    Journal Articles & Books
    December, 2010
    Chile

    A multitemporal analysis to determine the land cover change was conduced in the pre-Andean range of Maule region of Chile. We used satellite imagery from the year 1989 and 2003 to analyze the likely causes of native forest change. In this period, there was a reduction in native forest area of 44% in the study area, which is equivalent to an annual forest loss rate of 4.1%. The native forest area is replaced by shrublands (29%) and exotic forest plantations (27%). A great proportion of current exotic forest plantations are established on lands that were native forest in 1989 (63%).

  4. Library Resource
    Policy Papers & Briefs
    December, 2003
    Honduras

    In this paper we discuss the principal results of participatory surveys that were conducted between June 2001 and May 2002 in 95 communities (villages) in the rural hillside areas in Honduras. The principal objectives of the study were to determine the main income earning strategies at the community level; identify the most important determinants of these strategies; and analyze the principal factors that determine the use of conservation technologies and investments.

  5. Library Resource
    Journal Articles & Books
    December, 2008
    Argentina

    A geomorphologic analysis applied to the knowledge of the regional Quaternary geology was carried out in an arid region of Central Western Argentina. The study area lies between Eastern Precordillera and Western Pampean ranges System. The need for a better knowledge of the territorial units is required for a sustainable development of the new agricultural farms in the southern part of the central valley of the San Juan river. The geomorphologic study combine field works with processing and interpretation of air stereo photographs and satellite images.

  6. Library Resource
    Journal Articles & Books
    December, 2010
    Costa Rica

    The financial behavior of three schemes for payments for environmental services (PES) adjusted to the forest value (FV) was assessed, starting from a first forest harvest, which were classified into two types according to the dominance of Pentaclethra macroloba combined with palms (Forest Pp) or combined with Carapa guianensis (Forest Pc). In these forests, common production functions of sustainable forest management (SFM), and functions of profitability were elaborated for two conditions of harvesting during a cutting cycle.

  7. Library Resource
    Journal Articles & Books
    December, 2010
    Chile

    In the Región de Aysen, Chile, Nothofagus antarctica (ñirre or Antarctic beech) forms puré forests called shrubby beech forests and secondary mixed shrub of anthropogenic origin. The aim of this work is to characterize the insect fauna associated to the foliage of Antarctic beech forests and scrublands in the Baker river basin. Insects were collected in spring (October 2006) and summer (January 2007), in five beech forests and 10 scrub patches from latitudes 47°2' S - 72°48' W to 47°15' S - 73° W. Six orders of insects were identified, being Coleóptera the most diverse.

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