Agricultural Water Management Research Trends by Magnus L. Sorensen, Magnus L. Srensen

By Magnus L. Sorensen, Magnus L. Srensen

Agricultural water administration contains many subject matters: farm-level and neighborhood water administration, irrigation, drainage, and salinity administration of cultivated components, assortment and garage of rainfall in terms of soil houses and crops; the position of groundwater and floor water in nutrient biking, exploitation and defense of water assets, keep an eye on of flooding, erosion, and desertification. This ebook provides modern learn from all over the world.

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2002; Alves et al. , 2004). , 2004). Single model and multi-model ensembles were treated as potential forecasts. , 2004). , 2004). The principal aim of DEMETER was to advance the concept of multi-model ensemble prediction by installing a number of state-of-the-art global coupled ocean–atmosphere models on a single supercomputer, and to produce a series of 6-month multi-model ensemble hindcasts with common archiving and common diagnostic software. As a result of 18 Angel Utset Suastegui DEMETER, real-time multi-model ensemble seasonal global predictions are now routinely made at the European Centre for Medium-Range Weather Forecasts (ECMWF).

Seasonal forecasts at the county level, using ENSO phases, are combined with DSSAT modelling results in order to provide estimations of final yields, water and fertilizer requirements and several other outputs very useful to farmers. The forecast and the whole system are only reliable in El Niño years, although current researches aim to enlarge the system reliability to other years (Baigorria, 2007). El Niño signal is not very strong over Europe, which limits the applicability of ENSObased forecasts.

2003). , 2003). According to Ritchie (1998), there is definitely a need to have better DSSAT simulations of the water balance in very poorly drained conditions where oxygen stresses will impact plant growth. , 2004). , 2002). Particularly, Utset et al. (2006) showed that capillary rising can be an important component of maize water balance, when maize is cropped nearby river and channels, where shallower water tables can be found. Extreme rainfall conditions will be more frequent in the near future, due to climate change (IPCC, 2007).

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