Since the middle of the 20th century, irrigation in the southeast of Spain has displayed significant productive growth based on the intensive use of the scarce water resources in the area and the contribution of river flows from the hydrographic basin of the Tagus River to the hydrographic basin of the Segura River. Despite high levels of efficiency in the water use from the new irrigation systems, the water deficit has only intensified in recent years.
Search resultsShowing items 1 through 9 of 140.
Library ResourcePeer-reviewed publicationSeptember, 2020Brazil, Colombia, Spain, Italy, Mexico, Norway, Puerto Rico, Portugal, United States of America, Venezuela
Library ResourcePeer-reviewed publicationAugust, 2020Colombia, Spain, United States of America
Cultural ecosystem services are gaining increasing attention in the scientific literature, despite the conceptual and methodological difficulties associated with their assessment. We used a participatory GIS method to map and assess three cultural ecosystem services, namely, (a) outdoor recreation, (b) aesthetic enjoyment, and (c) sense of place, in the Madrid region (Spain). The main goal of the study was to identify cultural ecosystem service hotspots in the region and to explore the relationships among the three ecosystem services mapped.
Library ResourcePeer-reviewed publicationOctober, 2019Brazil, Global
This article engages recent debates over gentrification and urban displacement in the global South. While researchers increasingly suggest that gentrification is becoming widespread in “Southern” cities, others argue that such analyses overlook important differences in empirical context and privilege EuroAmerican theoretical frameworks.
Library ResourcePeer-reviewed publicationJanuary, 2020Brazil
Demand for agricultural exports in Brazil has stimulated the expansion of crop production and cattle raising, which has caused environmental impacts. In response, Brazil developed public policies such as the new Forest Code (FC) and supply chain arrangements such the Soy and the Cattle Moratoriums. This paper analyzes the effectiveness of these policies, considering the trajectories of agricultural expansion in the state of Mato Grosso in three years: 2005 (pre-moratorium and before the new FC), 2010 (post-moratorium and before the new FC) and 2017 (post-moratorium and post-new FC).
News6 January 2020
Government vows to speed up return of confiscated farmland
Library ResourcePeer-reviewed publicationAugust, 2019Colombia
In Colombia, right-wing leadership returned to power after winning the presidential elections in 2018 in a campaign in which they opposed the previous government, primarily because of the negotiations and peacemaking with the FARC-EP (Fuerzas Armadas Revolucionarias de Colombia—Ejército del Pueblo ‘Armed Revolutionary Forces of Colombia—People’s Army’), Colombia’s largest guerrilla organization.
Library ResourcePeer-reviewed publicationJanuary, 2019Chile
The natural salt meadows of Tilopozo in the hyperarid, Atacama Desert of northern Chile, which are located at approximately 2800 m above sea level, are under pressure from industrial activity, and cultivation and grazing by local communities. In this research, the land surface covered by salt meadow vegetation was estimated from normalized difference vegetation indices (NDVI) derived from Landsat Thematic Mapper (TM), Enhanced Thematic Mapper (ETM+) and Operational Land Imager (OLI) data from 1985 to 2016.
Library ResourcePeer-reviewed publicationOctober, 2017Brazil, China
The global food market makes international players intrinsically connected through the flow of commodities, demand, production, and consumption. Local decisions, such as new economic policies or dietary shifts, can foster changes in coupled human–natural systems across long distances. Understanding the causes and effects of these changes is essential for agricultural-export countries, such as Brazil. Since 2000, Brazil has led the expansion of soybean planted area—19 million hectares, or 47.5% of the world’s increase. Soybean is among the major crop commodities traded globally.
Library ResourceJournal Articles & BooksDecember, 1985Colombia, Central America, South America
The factors influencing the size and shape of exptl. field plots (area of exptl. lot, soil types, trial objective, no. of replicates, and degree of accuracy and homogeneity of the exptl. material) for the execution of field expt. are discussed. The basic principles of the following different methods to determine plot size are described: max. curve method, method of Koch and Rigney, Hatheway's method, and the max. curve method using the multiple linear regression model. Some considerations are presented on the border effect and on plot size in bush and climbing bean trials.
Library ResourceJournal Articles & BooksDecember, 1980Colombia, Central America, South America
Efforts to develop cassava technology for the vast areas of acid infertile soils were continued Large-scale germplasm screening in the field was begun in Carimagua for tolerance to low levels of P and acidity and in Quilichao, for tolerance to low levels of P. Various fertilizer trials were used to determine: (a) nutrient absorption and distribution within the plant during a 12-mo.
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