agriculture satellite Articles

  • Estimating ground cover of field crops using medium-resolution multispectral satellite imagery

    Remote sensing is useful for estimating plant canopy characteristics, such as leaf area index (LAI) and ground cover (GC). When the source of remote sensing data is medium-resolution satellite imagery, plant canopy characteristics can be estimated for numerous fields within an agricultural region. In this study, a procedure was developed to estimate GC of field crops from medium-resolution ...

  • Estimation of the increase in deforestation due to agricultural and pastoral activities in the Brazilian Western Amazon: an approach based on the relationship between production and productivity

    This paper presents and discusses the evaluation results of the increase in deforestation verified in the period of 1970 to 1990 in the Cruzeiro du Sul area, Acre State, in the Brazilian Western Amazon, based on an analysis of the relationship between the production and the productivity of the agricultural and pastoral (A&P) activities. The analysis suggests a deforestation increase owing to ...


    By Inderscience Publishers

  • Land accounts for Europe 1990-2000

    Changes in land cover in Europe reflect modifications in the uses of land, which often compete for the same resource: development of artificial surfaces for housing, transport and economic activities; intensification or extensification of agriculture practices; conversion of natural land to agriculture or farmland abandonment; afforestation or deforestation. Accounting for land cover change in a ...

  • Spatial and temporal changes at Tuzla (Palas) Lake in Turkey

    Saline lakes are widespread throughout the arid and semi-arid regions of the world and have considerable ecological importance. They are also very vulnerable to climatic changes or changes in their hydrological regimes. Most saline lakes of Turkey are close to the verge of extinction due to natural and anthropogenic impacts. This study analyzes the spatial and temporal changes at a relatively ...


    By IWA Publishing

  • A methodology for quantifying global consumptive water use of coffee for sustainable production under conditions of climate change

    Coffee is the second most traded commodity in the world after oil. A sustainable coffee industry is crucial to maintaining global agriculture, trade, human and environmental well-being, and livelihoods. With increasing water scarcity and a changing climate, understanding and quantifying the risks associated with water, a primary input in coffee production, is vital. This methodological paper ...


    By IWA Publishing

  • Discerning shifting irrigation practices from passive microwave radiometry over Punjab and Haryana

    Overexploitation of groundwater (GW) in the recent past is a well-known fact for the Punjab and Haryana region of India, as reported by several studies using satellite-based gravity anomaly from the Gravity Recovery and Climate Experiment mission and also by using observed data. This decline in GW has enforced the Punjab Preservation of Sub-Soil Water Act 2009, and resulted in change in rice ...


    By IWA Publishing

  • Regional-scale assessment of soil salinity in the Red river valley using multi-year MODIS EVI and NDVI

    Received for publication April 15, 2009. The ability to inventory and map soil salinity at regional scales remains a significant challenge to scientists concerned with the salinization of agricultural soils throughout the world. Previous attempts to use satellite or aerial imagery to assess soil salinity have found limited success in part because of the inability of methods to isolate the effects ...

  • Corn and soybean mapping in the united states using modis time-series data sets

    Monitoring and mapping of U.S. croplands has long been a primary goal of many users of earth observation satellite data. The advantages of using low spatial and high temporal resolution data are (i) increased ability to monitor the phenological change of crop plants, and (ii) the possibility of generating consistent large area crop cover maps. This study investigates the potential of 500-m MODIS ...

  • Seeing the forest and the trees, all 3 trillion of them

    A new Yale-led study estimates that there are more than 3 trillion trees on Earth, about seven and a half times more than some previous estimates. But the total number of trees has plummeted by roughly 46% since the start of human civilization, the study estimates. Using a combination of satellite imagery, forest inventories, and supercomputer technologies, the international team of researchers ...


    By GLOBE SERIES

  • Global Forest Watch: dynamic new platform to protect forests worldwide

    On Wed. Feb. 19, 2014, the World Resources Institute (WRI), Google, and a group of more than 40 partners launched Global Forest Watch (GFW), a dynamic online forest monitoring and alert system that empowers people everywhere to better manage forests. For the first time, Global Forest Watch unites the latest satellite technology, open data, and ...

  • Turning abandoned rice fields into mangroves

    What do you do when mangroves fail to naturally recolonise abandoned rice fields in one of the most precious mangrove deltas of the world? Pieter van Eijk reports on a recent mission to Western Africa that paves the way for large-scale mangrove recovery through a so-called ‘ecological restoration’ approach. ...


    By Wetlands International

  • How to grow more food with less water

    Scientists and farmers collaborate on a quest for more efficient irrigation This story was co-published with Civil Eats, a daily news source for critical thought about the American food system. From reading the weather to choosing a ...


    By Ensia

  • Global deforestation is decreasing. Or is it?

    A new look at the complex picture of land use change suggests that when it comes to forests, we’re far from being out of the woods. It started, as many things do, with a rumor. In 2013 Matt Finer, a researcher with the Amazon Conservation Association, heard from locals that someone was cutting down rainforest deep in the Peruvian Amazon, far from prying eyes. So ...


    By Ensia

  • State of the Art Information on Mangrove Ecosystems in Indonesia

    Status and Trends of Mangroves in Indonesia GENERAL CONDITION OF MANGROVES IN INDONESIA Indonesia is a tropical archipelago with coastlines measuring a total length of 95,181 km, making it the country with the fourth longest coastline in the world (EarthTrends WRI, 2003, and Rompas, RM.2009). All along the coast are the estuaries of ...


    By Wetlands International

  • Losing Soil

    In 1938, Walter Lowdermilk, a senior official in the Soil Conservation Service of the U.S. Department of Agriculture, traveled abroad to look at lands that had been cultivated for thousands of years, seeking to learn how these older civilizations had coped with soil erosion. He found that some had managed their land well, maintaining its fertility over long stretches of history, and were ...


    By Earth Policy Institute

  • Experts question slowing Amazon deforestation trend

    Deforestation in Brazil’s Amazon rainforest fell by 18 per cent this year, according to official government figures, but some experts are surprised by the news and fear the true trend remains upward. The estimated area of forest cleared in the 12 ...


    By SciDev.Net

  • TrueNDVI vs. Synthetic NDVI Explained

    Not all NDVI is created equal Normalized difference vegetation index (NDVI) imagery products have become increasingly common in precision agriculture applications. More companies are offering NDVI and NDVI-like products, including “Synthetic NDVI” images from drone platforms. At Sentera, it is our mission to provide you only the most valuable crop health data, which ...


    By Sentera, LLC

  • Global Forest watch - join the movement

    We know remarkably little about what is happening to forests. Businesses currently have no way of determining whether or how much the soy, palm oil, or pulp and paper they use contribute to deforestation. So companies like Unilever and Nestlé, which ...

  • Press Advisory: Global Forest Watch to provide unprecedented monitoring of forests worldwide

    On February 20, the World Resources Institute (WRI) will launch Global Forest Watch (GFW), a dynamic online forest monitoring and alert system that empowers people everywhere to better manage forests. Created by WRI, Google, and more than 40 partners, GFW unites satellite technology, open data, and crowd sourcing to guarantee ...

  • Africa Analysis: Filling climate data gaps is only the first step

    Africa is often blamed for having scarce and unreliable weather records that hold back predictions of how climate change will affect the continent. This has led to calls over the years for better climate-change science and record-keeping, with the most recent coming from ...


    By SciDev.Net

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