Evolution of Irrigation-Equipped Areas as Share of Cultivated Areas

Resolution dependent errors in remote sensing of cultivated areas

Remote sensing has become a common and effective method for estimating the areal coverage of land cover classes. One class of particular interest is agriculture as area estimates of cultivated lands are important for purposes such as estimating yields or irrigation needs. The synoptic coverage of satellite imagery and the relative ease of automated analysis have led to widespread mapping of agr...

Estimation of Cultivated Areas Using Multi-Temporal SAR Data

Development and validation of the global map of irrigation areas

A new version of a digital global map of irrigation areas was developed by combining irrigation statistics for 10 825 sub-national statistical units and geo-spatial information on the location and extent of irrigation schemes. The map shows the percentage of each 5 arc minute by 5 arc minute cell that was equipped for irrigation around the year 2000. It is thus an important data set for global ...

Agricultural intensification and changes in cultivated areas, 1970-2005.

Does the intensification of agriculture reduce cultivated areas and, in so doing, spare some lands by concentrating production on other lands? Such sparing is important for many reasons, among them the enhanced abilities of released lands to sequester carbon and provide other environmental services. Difficulties measuring the extent of spared land make it impossible to investigate fully the hyp...

Evolution of Association Pallial Areas: In Birds

In: Roth G, Wullimann ME (eds) Brain evolution and cognition. Wiley, New York, pp 521–553 10. Carroll RL (1988) Vertebrate paleontology and evolution. Freeman, New York 11. Ayala EJ (1988) Can “progress” be defined as a biological concept? In: Nitecki MH (ed) Evolutionary progress. University of Chicago Press, Chicago Press, IL, pp 75–96 12. Gould SJ (1988) On replacing the idea of progress wit...