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| Author | : James M. Davidson |
| Publisher | : |
| Total Pages | : 120 |
| Release | : 1978 |
| Genre | : Plant-soil relationships |
| ISBN | : |
| Author | : |
| Publisher | : |
| Total Pages | : 364 |
| Release | : |
| Genre | : Irrigation water |
| ISBN | : |
| Author | : Gaylord V. Skogerboe |
| Publisher | : |
| Total Pages | : 340 |
| Release | : 1979 |
| Genre | : Irrigation |
| ISBN | : |
| Author | : |
| Publisher | : |
| Total Pages | : 468 |
| Release | : 1979 |
| Genre | : Environmental engineering |
| ISBN | : |
| Author | : Wynn R. Walker |
| Publisher | : |
| Total Pages | : 136 |
| Release | : 1978 |
| Genre | : Irrigation |
| ISBN | : |
| Author | : G. Philip Robertson |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 414 |
| Release | : 2012-12-06 |
| Genre | : Science |
| ISBN | : 9400976399 |
The large and rapidly expanding body ofliterature related to nitrogen cycling in both managed and native terrestrial ecosystems reflects the importance accorded to the behaviour of this vital and often limiting nutrient. Research at the organism, ecosystem and landscape levels commonly addresses questions concerning nitrogen acquisition, internal cycling and retention. Goals for this research include increased agricultural productivity and a better understanding of human impact on local, regional and global nitrogen cycles. Nitrogen cycle research in tropical regions has a long and distinguished history. Research on different aspects of nitrogen cycling in ecosystems of the tropics has been carried out in many regions. In relatively few instances has there, however, been a focus on the biogeochemical cycles at the ecosystem level. The meeting resulting in this volume was an attempt to bring together existing information on nitrogen cycling in ecosystems of Latin America and the Caribbean and discuss this in an ecosystem context.
| Author | : |
| Publisher | : |
| Total Pages | : 950 |
| Release | : 1978 |
| Genre | : Environmental engineering |
| ISBN | : |
| Author | : W. R. Tillotson |
| Publisher | : |
| Total Pages | : 68 |
| Release | : 1980 |
| Genre | : Evapotranspiration |
| ISBN | : |
| Author | : Piet Groenendijk |
| Publisher | : World Scientific |
| Total Pages | : 348 |
| Release | : 1999-03-03 |
| Genre | : Science |
| ISBN | : 1783262621 |
The concern over groundwater contamination has focused attention on the processes that influence the fate of chemicals in soil water systems. A major concern of groundwater contamination is the passage of these chemcials through the unsaturated zone and the relatively thin cover layers overlying the aquifers. Pollution due to diffuse sources is probably the most difficult to model. This is because the loads are usually non-homogeneous and they are also governed by spatially and temporally non-homogeneous, but dynamic, processes of chemical and biochemical phenomena.In this book, the estimation techniques and transfer functions of required input data from existing databases in geographic information systems are provided. Spatially variable input data, such as the type of soil, hydrological conditions, intensity of land use and atmospheric deposit of pollutants, are derived from basic land and climate characteristics. A model for the evaluation of land use and water management is also described. In addition, examples of field and regional studies on water management and policy analysis are provided.
| Author | : M. J. Frissel |
| Publisher | : Bernan Press(PA) |
| Total Pages | : 296 |
| Release | : 1981 |
| Genre | : Technology & Engineering |
| ISBN | : |
