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MODIS Collection 5 global land cover: Algorithm refinements and characterization of new datasets
Global Consequences of Land Use
Global croplands, pastures, plantations, and urban areas have expanded in recent decades, accompanied by large increases in energy, water, and fertilizer consumption, along with considerable losses of biodiversity.
Solutions for a cultivated planet
It is shown that tremendous progress could be made by halting agricultural expansion, closing ‘yield gaps’ on underperforming lands, increasing cropping efficiency, shifting diets and reducing waste, which could double food production while greatly reducing the environmental impacts of agriculture.
Estimating historical changes in global land cover: Croplands from 1700 to 1992
Human activities over the last three centuries have significantly transformed the Earth's environment, primarily through the conversion of natural ecosystems to agriculture. This study presents a…
An integrated biosphere model of land surface processes
Here we present a new terrestrial biosphere model (the Integrated Biosphere Simulator - IBIS) which demonstrates how land surface biophysics, terrestrial carbon fluxes, and global vegetation dynamics…
Global response of terrestrial ecosystem structure and function to CO2 and climate change: results from six dynamic global vegetation models
The possible responses of ecosystem processes to rising atmospheric CO2 concentration and climate change are illustrated using six dynamic global vegetation models that explicitly represent the…
Farming the planet: 2. Geographic distribution of crop areas, yields, physiological types, and net primary production in the year 2000
Croplands cover ∼15 million km2 of the planet and provide the bulk of the food and fiber essential to human well‐being. Most global land cover data sets from satellites group croplands into just a…
Farming the planet: 1. Geographic distribution of global agricultural lands in the year 2000
Agricultural activities have dramatically altered our planet's land surface. To understand the extent and spatial distribution of these changes, we have developed a new global data set of croplands…
An oscillation in the global climate system of period 65–70 years
IN addition to the well-known warming of ∼0.5 °C since the middle of the nineteenth century, global-mean surface temperature records1–4display substantial variability on timescales of a century or…
Closing yield gaps through nutrient and water management
- N. Mueller, J. Gerber, M. Johnston, D. Ray, N. Ramankutty, J. Foley
- Medicine, Environmental ScienceNature
- 11 October 2012
A global-scale assessment of intensification prospects from closing ‘yield gaps’, the spatial patterns of agricultural management practices and yield limitation, and the management changes that may be necessary to achieve increased yields finds that global yield variability is heavily controlled by fertilizer use, irrigation and climate.