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Evaluation of Water Productivity of Plant Production and Livestock Production in an Experimental Watershed Located in Southern Brazil

2023*
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Release : 2023*
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Book Synopsis Evaluation of Water Productivity of Plant Production and Livestock Production in an Experimental Watershed Located in Southern Brazil by : Sofia Helena Zanella Carra

Download or read book Evaluation of Water Productivity of Plant Production and Livestock Production in an Experimental Watershed Located in Southern Brazil written by Sofia Helena Zanella Carra. This book was released on 2023*. Available in PDF, EPUB and Kindle. Book excerpt: Englische Version: Water shortages caused by persistent and severe droughts and changes in rainfall patterns are expected to be more frequent and intense due to climate change, increasing water competition and posing food production at risk. Therefore, sustainable and resilient food systems are needed to meet the demand of a growing population. Plant production and animal husbandry account for 72% of the water withdrawn worldwide. Most water consumed in livestock production is for animal feed production. Water is also needed to provide drinking water and to clean and cool the stables. In this context, increasing agriculture and livestock water productivity (WP) is crucial, along with integrated management and governance of water resources. WP describes the ratio of output (e.g. kg milk) to water input (e.g. m3 evapotranspiration). Water input includes direct (e.g. water intake) and indirect (e.g., water for purchased feed) water use. WP calculations are used primarily in evaluating agricultural measures to improve rainfall and technical WP in livestock and crop production. Consistent methods are needed to increase WP and also to reduce the water-related environmental impact of livestock systems. Recently, the Food and Agriculture Organization of the United Nations (FAO), through the Livestock Environmental Assessment and Performance (LEAP) Partnership, launched reference guidelines for assessing water use in livestock production systems and supply chains. The FAO LEAP guidelines aim to understand the water flows on a farm scale and evaluate the contribution of livestock activities to water scarcity, supporting the identification of opportunities to reduce the potential water use impacts in this sector. This cumulative thesis presents the results of the first application of the FAO LEAP guidelines on farms located in Brazil. Three original publications were published in peer-reviewed journals. [...].

Livestock's Long Shadow

2006 Business & Economics
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Release : 2006
Genre : Business & Economics
Kind : eBook
Book Rating : 717/5 ( reviews)

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Book Synopsis Livestock's Long Shadow by : Henning Steinfeld

Download or read book Livestock's Long Shadow written by Henning Steinfeld. This book was released on 2006. Available in PDF, EPUB and Kindle. Book excerpt: "The assessment builds on the work of the Livestock, Environment and Development (LEAD) Initiative"--Pref.

Water Productivity Modeling by Remote Sensing in the Semiarid Region of Minas Gerais State, Brazil

2018 Science
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Release : 2018
Genre : Science
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Book Synopsis Water Productivity Modeling by Remote Sensing in the Semiarid Region of Minas Gerais State, Brazil by : Antônio Heriberto de

Download or read book Water Productivity Modeling by Remote Sensing in the Semiarid Region of Minas Gerais State, Brazil written by Antônio Heriberto de. This book was released on 2018. Available in PDF, EPUB and Kindle. Book excerpt: This chapter aimed to demonstrate the potential of monitoring water and vegetation parameters by combining weather and satellite measurements in mixed agroecosystems in the semiarid region of the northern Minas Gerais state, Southeast Brazil. Soil moisture indices and water productivity components were quantified with Landsat 8 images under different hydrological conditions along the year 2015. The surface resistance to the water fluxes (rs) performed better than the ratio of actual to the reference evapotranspiration (ETr) to detect soil moisture conditions. The mean pixel values for actual evapotranspiration (ET), biomass production (BIO), and water productivity based on evapotranspiration (WP), for irrigated crops (IC), ranged respectively from 2.5 ± 1.3 to 4.1 ± 1.6 mm d−1; 78 ± 62 to 132 ± 64 kg ha−1 d−1; and from 2.2 ± 0.8 to 3.3 ± 0.9 kg m−3. The corresponding ranges for natural vegetation (NV) were 0.1 ± 0.2 to 1.9 ± 1.3 mm d−1; 1 ± 1 to 44 ± 42 kg ha−1 d−1, and 0.6 ± 0.3 to 1.8 ± 0.8 kg m−3. The incremental values, resulting from the replacement of natural species by agricultural crops, were respectively 2.7 mm d−1 and 83 kg ha d−1. However, this replacement increased water productivity based on evapotranspiration (WP) by 264% during the studied year, what should be considered in land use and climate change studies in the Brazilian semiarid region.

Bibliography of Agriculture

1973 Agriculture
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Release : 1973
Genre : Agriculture
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Book Synopsis Bibliography of Agriculture by :

Download or read book Bibliography of Agriculture written by . This book was released on 1973. Available in PDF, EPUB and Kindle. Book excerpt:

The State of the World's Land and Water Resources for Food and Agriculture

2013-06-17 Law
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Release : 2013-06-17
Genre : Law
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Book Rating : 877/5 ( reviews)

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Book Synopsis The State of the World's Land and Water Resources for Food and Agriculture by : Food and Agriculture Organization of the United Nations

Download or read book The State of the World's Land and Water Resources for Food and Agriculture written by Food and Agriculture Organization of the United Nations. This book was released on 2013-06-17. Available in PDF, EPUB and Kindle. Book excerpt: The State of the World's Land and Water Resources for Food and Agriculture is FAO's first flagship publication on the global status of land and water resources. It is an 'advocacy' report, to be published every three to five years, and targeted at senior level decision makers in agriculture as well as in other sectors. SOLAW is aimed at sensitizing its target audience on the status of land resources at global and regional levels and FAO's viewpoint on appropriate recommendations for policy formulation. SOLAW focuses on these key dimensions of analysis: (i) quantity, quality of land and water resources, (ii) the rate of use and sustainable management of these resources in the context of relevant socio-economic driving factors and concerns, including food security and poverty, and climate change. This is the first time that a global, baseline status report on land and water resources has been made. It is based on several global spatial databases (e.g. land suitability for agriculture, land use and management, land and water degradation and depletion) for which FAO is the world-recognized data source. Topical and emerging issues on land and water are dealt with in an integrated rather than sectoral manner. The implications of the status and trends are used to advocate remedial interventions which are tailored to major farming systems within different geographic regions.

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