Résultats de la recherche | Land Portal

Résultats de la recherche

Showing items 1 through 9 of 9514.
  1. Library Resource
    Articles et Livres
    décembre, 2009

    We investigated six different bush encroachment control treatments on the responses of 29 woody species in southern Ethiopia. During the post-treatments (i.e. between June 2004 and 2005), we monitored tree stump total kill, partial kill and the responses of woody species to disturbances, in terms of coppicing and seedling regeneration. Protection from disturbance promoted seedling regeneration by 4.6%. The effects of tree cutting and fire greatly reduced woody species regeneration, while tree cutting and fire combined with grazing treatment was more effective in reducing coppicing.

  2. Library Resource
    Articles et Livres
    décembre, 2011

    Based on the fact that streamwater quality reflects landscape conditions, the objectives of this study were: to investigate nitrogen (N), carbon (C), and major ion concentrations in six streams crossing minimally disturbed Atlantic Forest areas, with similar geomorphological characteristics; to determine N and C fluxes in one of these pristine streams (Indaiá); and assess the impact of human activity on the biogeochemistry of two other streams in the same region, crossing urbanized areas.

  3. Library Resource
    Articles et Livres
    décembre, 2014
    Mexique, États-Unis d'Amérique

    The USDA initiated the Conservation Effects Assessment Project (CEAP) to quantify the environmental benefits of conservation practices at regional and national scales. For this assessment, a sampling and modeling approach is used. This paper provides a technical overview of the modeling approach used in CEAP cropland assessment to estimate the off-site water quality benefits of conservation practices using the Ohio River Basin (ORB) as an example.

  4. Library Resource
    Articles et Livres
    décembre, 2014

    The assessment of freshwater resources in a drainage basin is not only dependent on its hydrologic parameters but also on the socio-economic system driving development in the watershed area; the socio-economic aspect, that is often neglected in hydrologic studies, is one of the novelties of this study. The aim of this paper is twofold: (1) presenting an integrated working methodology and (2) studying a local case of a North African watershed where scarce field data are available.

  5. Library Resource
    Articles et Livres
    décembre, 2009
    Inde, Brésil

    The governments of Brazil and India are planning a large expansion of bioethanol and biodiesel production in the next decade. Considering that limitation of suitable land and/or competition with other land uses might occur in both countries, assessments of potential crop productivity can contribute to an improved planning of land requirements for biofuels under high productivity or marginal conditions. In this paper we model the potential productivity of sugarcane and jatropha in both countries.

  6. Library Resource
    Articles et Livres
    décembre, 2016

    Despite the potential to provide new insight into the underlying heterogeneity of urban thermal landscapes, local indicators of spatial autocorrelation (LISA) remains underutilized in land surface temperature (LST) related study. The present research applies local Moran's I as a unique approach to recognize the pattern of statistically significant LST increase by detecting clusters of localized hot spots. The single channel algorithm has been applied to extract LST from nine temporal Landsat datasets ranging from 2001 to 2013.

  7. Library Resource
    Documents et rapports de conférence
    décembre, 2014

    Land as a resource of agricultural production is not fully exploited in Latvia, as approximately 400 thousand ha, according to the data in the identification system of agricultural parcels, were undeclared for the Single Area Payment Scheme in 2012 and, of the agricultural area, 10 % was uncultivated and 2% was overgrown. It creates unique opportunities and a potential for enhancing the management and use of land in the future to increase the output of agricultural products.

  8. Library Resource
    Articles et Livres
    juin, 2002

    The study area  covers, Haymana Research Farm of Central Research Institute for Field Crops and Kenan Evren Research and Practice Farm of Ankara University Faculty of Agriculture. This area is in Ankara city, at 22nd km of Haymana-Gölbaşı province road and it is total 968 hectare. The studies, which were done in project, have two steps. In these steps, the area works were the first one. In the areas by using GPS of the roads, parcels, and pond co-ordinate points were red.

  9. Library Resource
    Documents de politique et mémoires
    décembre, 2012

    In agricultural industry of the Republic of Belarus the problem of increasing the effectiveness of utilization of land resources appears one of the most actual. Annual alienation of agricultural lands and arable fields under housing construction and industrial buildings, roads and other economic object leads to implacable decline of agricultural areas. Absence of new lands, suitable for agricultural use, promotes increase of agricultural productivity by means of intensification of producing process.

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