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Showing items 50248 through 50256 of 73563.Water samples were collected for determination of dissolved trace metals in 56 sampling sites throughout the upper Han River, China.
The objective of this study is to determine the financing impact of total expenditure on the use of agriculture inputs (fertilizers, labor, and pesticides), and the output of cotton, rice, beans, corn, soybean, and wheat in Brazil. We study the period 1976–2005.
Homegardens are one of the oldest forms of managed land use systems characterised by high diversity and complexity of their species structure which in turn contribute to efficient nutrient cycling.
In developing countries, forests play an important role in supplying goods and services. These ecosystems are under many stresses due to unsustainable management practices, lack of clarity on tenure and access rights, and persistent pressure for land-use change.
This paper analyses the effect of a set of irrigation rehabilitation projects conducted over the last 10 years in Peru. The projects were conducted without the aim or the tools for a full-fledged impact evaluation.
An important proportion of Latin America’s forests are located in indigenous territories, and indigenous peoples are the beneficiaries of about 85% of the area for which local rights to land and forest have been recognized in Latin America since the 1980s.
The suitability of land animal by‐products (ABPs) in feed for Atlantic salmon postsmolts (initial weight 372 g) in sea water was studied in a feeding experiment, using poultry by‐product meal (PBM) and porcine blood meal (BM) as protein sources and poultry oil as fat source.
Addressing global fisheries overexploitation requires better understanding of how small-scale fishing communities in developing countries limit access to fishing grounds.
The European Landscape Convention is the first international agreement to deal with all aspects of landscape planning, protection, and management. It emphasizes transparency, democracy, and good governance as integral parts of ‘landscape’.
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