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Titlebook: Soil and Water Quality at Different Scales; Proceedings of the W Peter A. Finke,Johan Bouma,Marcel R. Hoosbeek Conference proceedings 1998

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樓主: Baleful
21#
發(fā)表于 2025-3-25 03:45:13 | 只看該作者
Relevance of scale dependent approaches for integrating biophysical and socio-economic information ar, some basic questions of scales and hierarchies still have to be resolved, e.g. how to “scale-up” the biophysical data to the level at which public policy is formulated without losing the integrity of the data. This paper examines these and related issues by discussing the theories and principles
22#
發(fā)表于 2025-3-25 09:37:18 | 只看該作者
Scale issues in agroecological research chainsat the small scale given large scale information (“down” scaling) is much worse than our ability to scale “up”. Moreover, while there have been several successful efforts to scale up certain types of information, we have been unable to predict large-scale phenomena given small scale information in s
23#
發(fā)表于 2025-3-25 15:22:29 | 只看該作者
Obtaining soil and land quality indicators using research chains and geostatistical methodsas obtained, i.e. which models were used. A specific sequence of models used for obtaining an indicator value is called a ‘research chain’ and is indicated in the Scale Hierarchy and Knowledge Type Diagram. The use of research chains allows the user to consider and evaluate alternative options for t
24#
發(fā)表于 2025-3-25 18:37:50 | 只看該作者
25#
發(fā)表于 2025-3-25 23:16:11 | 只看該作者
Small scale variability in the flow of water and solutes, and implications for lysimeter studies of om 40% of the overall area of the array of collectors. However, there was only two-fold variation between cells in mean travel time velocity. This, coupled with a large ‘mobile’ water content (equivalent to about 70% of the porosity) implies that rapid flow through a relatively small volume of macro
26#
發(fā)表于 2025-3-26 02:12:26 | 只看該作者
27#
發(fā)表于 2025-3-26 04:30:37 | 只看該作者
Space-time upscaling of plot-based research information: frost tillagees based on measured soil temperature data from 8 weather station-years. It was independently validated based on data from frost depth tubes. Observed and predicted frost-tillable days for cropped fields were compared and showed good agreement when averaged for bare and sod surface conditions. Soil
28#
發(fā)表于 2025-3-26 11:49:08 | 只看該作者
29#
發(fā)表于 2025-3-26 15:26:37 | 只看該作者
Investigating soil and groundwater quality at different scales in a forested catchment: the Waldsteihat the sorption capacity of the soils in this region has been exceeded. Decreasing SO. deposition in the long term run is likely to enhance the influence of the soil, and reduces the correlation between deposition and soil solution concentration. NO. showed minimum variation at the county scale. Th
30#
發(fā)表于 2025-3-26 18:20:58 | 只看該作者
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