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1 lis 2019 · Field capacity (FC) is one of the most cited soil physical parameters and is relevant for the management of agricultural systems. In the search for alternatives to the estimation of FC, several researchers have proposed methods based on dynamic and static criteria.
estimate field capacity. The work described in this paper was designed to develop a rapid method of determining the field capacity of irrigated soils, in the field, under conditions of crop growth. In addition, comparisons of moisture holding characteristics determined in 26 the laboratory with the field capacity as measured in the field, were made
8 paź 2018 · Field capacity (FC) is crucial for modelling soil–plant–water dynamics with bucket-type models, supporting prevention of environmental problems (e.g. chemical leaching to deeper layers and groundwater and waste of water resources).
24 maj 2014 · Across many soil types and conditions, post wetting soil internal drainage exhibits predictable dynamics that lead to a stable and repeatable hydration state termed “field capacity” (FC). Soil regulation of internal drainage toward FC has long been recognized as producing a useful hydrologic benchmark for modeling and for estimation of ...
determine a more exact value of the field capacity for a given soil, rather than an approximate value that is traditionally based on some suction values of 0.1 or 0.3 bar or other values.
The pressure-based method was introduced by Richards and Weaver (1944) to estimate the field capacity with the soil water content at a matric potential of í1/3 bar (equivalent to í33 kPa and í348 cm of water column) based on their laboratory experiments.
Field capacity is the amount of soil moisture or water content held in soil after excess water has drained away and the rate of downward movement has materially decreased, which usually takes place within 2–3days after a rain or irrigation in pervious soils of uniform structure and texture.
