| Name | edcrop JSON |
| Version |
1.0.0
JSON |
| download |
| home_page | None |
| Summary | A Python package to simulate field-scale evapotranspiration and drainage |
| upload_time | 2024-10-30 09:02:46 |
| maintainer | None |
| docs_url | None |
| author | None |
| requires_python | >=3.8.8 |
| license | MIT License Copyright (c) 2024 Steen Christensen, Dept. of Geoscience, Aarhus University, Denmark. Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| keywords |
precipitation
evapotranspiration
drainage
root zone
|
| VCS |
 |
| bugtrack_url |
|
| requirements |
No requirements were recorded.
|
| Travis-CI |
No Travis.
|
| coveralls test coverage |
No coveralls.
|
# edcrop
[Edcrop Online Documentation](https://steenchr.github.io/edcrop/home.html)
[Documentation of Edcrop - version 1](https://ebooks.au.dk/aul/catalog/book/539)
Evapotranspiration is one of the major components of Earth’s Water Balance, being the sum of evaporation
and plant transpiration from the land and ocean surface.
Edcrop is a Python package that, using climate input, simulates field-scale evapotranspiration
and drainage from the root zone of an area covered with a crop, a wetland, or a forest.
The conceptual model implemented in edcrop is a modification of the Evacrop model by Olesen and Heidmann (2002),
which itself builds on the Watcros model by Aslyng and Hansen (1982). The edcrop conceptualization is based on
considerations regarding the physical processes that are important for turning precipitation and irrigation
into either evaporation, transpiration, or drainage from the root zone: Temperature determines whether
precipitation falls as rain or snow, and it determines when snow thaws and infiltrates. The vegetation intercepts
a part of precipitation, while the rest infiltrates into the ground. The infiltrated water will either evaporate,
be absorbed by plant roots, be stored in the soil, or drain from the root zone. Potential evaporation is
distributed between vegetation and soil, where the former part drives evaporation of intercepted water and plant
transpiration from the green leaf area, while the latter part drives evaporation from the soil. The soil’s ability
to store water depends on its field capacity; when the water content exceeds field capacity, water will gradually
drain downwards. Furthermore, it is assumed that the annual life cycle of crops and wetland vegetation can be
described by growing degree-days alone, while for forests the life cycle is described by a calendar. For irrigation,
either (i) date and amount are input, or (ii) they are determined automatically by edcrop using certain criteria.
There are two alternative soil water balance functions to choose between in edcrop. The first alternative is an
almost straight copy of the function used in the original Evacrop code by Olesen and Heidmann (2002), simulating
flow through the soil profile as flow through two linear reservoirs using daily time steps. However, it can simulate
macro-pore drainage, which the original Evacrop cannot. The second alternative simulates flow through the soil profile
as flow through four linear or nonlinear reservoirs using daily or sub-daily time steps. For nonlinear reservoirs,
edcrop uses Mualem – van Genuchten like functions. It also simulates gravity driven macro-pore flow as well as
precipitation loss due to surface runoff.
As input, given in text files, edcrop requires daily temperature, precipitation, and reference evapotranspiration. It also
requires information about combination(s) of soil type and vegetation type to simulate. One can choose between seven
default soil types and fifteen default vegetation types, or one can manually input information for other types of soil
or vegetation. In a single model run, edcrop can loop through lists of climate files, soils, and vegetation.
Edcrop can be imported and used in own python script, or it can be executed from the command line as a script.
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"description": "# edcrop\r\n\r\n[Edcrop Online Documentation](https://steenchr.github.io/edcrop/home.html)\r\n[Documentation of Edcrop - version 1](https://ebooks.au.dk/aul/catalog/book/539)\r\n\r\nEvapotranspiration is one of the major components of Earth\u2019s Water Balance, being the sum of evaporation \r\nand plant transpiration from the land and ocean surface. \r\n\r\nEdcrop is a Python package that, using climate input, simulates field-scale evapotranspiration \r\nand drainage from the root zone of an area covered with a crop, a wetland, or a forest. \r\n\r\nThe conceptual model implemented in edcrop is a modification of the Evacrop model by Olesen and Heidmann (2002), \r\nwhich itself builds on the Watcros model by Aslyng and Hansen (1982). The edcrop conceptualization is based on \r\nconsiderations regarding the physical processes that are important for turning precipitation and irrigation \r\ninto either evaporation, transpiration, or drainage from the root zone: Temperature determines whether \r\nprecipitation falls as rain or snow, and it determines when snow thaws and infiltrates. The vegetation intercepts \r\na part of precipitation, while the rest infiltrates into the ground. The infiltrated water will either evaporate, \r\nbe absorbed by plant roots, be stored in the soil, or drain from the root zone. Potential evaporation is \r\ndistributed between vegetation and soil, where the former part drives evaporation of intercepted water and plant \r\ntranspiration from the green leaf area, while the latter part drives evaporation from the soil. The soil\u2019s ability \r\nto store water depends on its field capacity; when the water content exceeds field capacity, water will gradually \r\ndrain downwards. Furthermore, it is assumed that the annual life cycle of crops and wetland vegetation can be \r\ndescribed by growing degree-days alone, while for forests the life cycle is described by a calendar. For irrigation, \r\neither (i) date and amount are input, or (ii) they are determined automatically by edcrop using certain criteria.\r\n\r\nThere are two alternative soil water balance functions to choose between in edcrop. The first alternative is an \r\nalmost straight copy of the function used in the original Evacrop code by Olesen and Heidmann (2002), simulating \r\nflow through the soil profile as flow through two linear reservoirs using daily time steps. However, it can simulate \r\nmacro-pore drainage, which the original Evacrop cannot. The second alternative simulates flow through the soil profile \r\nas flow through four linear or nonlinear reservoirs using daily or sub-daily time steps. For nonlinear reservoirs, \r\nedcrop uses Mualem \u2013 van Genuchten like functions. It also simulates gravity driven macro-pore flow as well as \r\nprecipitation loss due to surface runoff. \r\n\r\nAs input, given in text files, edcrop requires daily temperature, precipitation, and reference evapotranspiration. It also \r\nrequires information about combination(s) of soil type and vegetation type to simulate. One can choose between seven \r\ndefault soil types and fifteen default vegetation types, or one can manually input information for other types of soil \r\nor vegetation. In a single model run, edcrop can loop through lists of climate files, soils, and vegetation.\r\n\r\nEdcrop can be imported and used in own python script, or it can be executed from the command line as a script.\r\n",
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