Waterwijzer Overlay: Difference between revisions

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==Result types==
==Result types==
The overlay offers the following result types:
The overlay offers the following result types, each storing the agricultural loss of earnings in percentage. The categories are:
{| class="wikitable"
* Dry: low water levels cause crops to dry out;
! Result type
* Wet: high water levels cause crops' roots to suffocate;
! Unit
* Indirect: Indirect causes, related to combinations of crop, soil, weather and water levels
! Description
* Salt: salt water irrigation causes damage to crops;
|-
* Total: the sum of the previous four categories.
| [[Damage_dry_result_type_(Waterwijzer_Overlay)|DAMAGE_DRY]]
| % loss of earnings
| The loss of agricultural earnings for drought scenarios, for a particular crop, using the highest and lowest ground water levels adjusted by subsidence. These earnings are calculated by the Waterwijzer Landbouw api. When the water levels in the ground are too low, roots are unable to absorb enough moisture.
|-
| [[Damage_wet_result_type_(Waterwijzer_Overlay)|DAMAGE_WET]]
| % loss of earnings
| The loss of agricultural earnings due to high ground water levels, for a particular crop, using the highest and lowest ground water levels adjusted by subsidence. These earnings are calculated by the Waterwijzer Landbouw api. When the water levels in the ground are too high, subsurface air is replaced by water and plant roots cannot obtain enough oxygen.
|-
| [[Damage_indirect_result_type_(Waterwijzer_Overlay)|DAMAGE_INDIRECT]]
| % loss of earnings
| The loss of agricultural earnings due to indirect causes, for a particular crop, using the highest and lowest ground water levels adjusted by subsidence. These earnings are calculated by the Waterwijzer Landbouw api. Indirect causes relate to the type of soil, type of crop and water levels.


Taken into account are:  
<ul>
* soil temperatures in comparison with crop growth calendar;
<li style = "display:inline-block">[[File:Waterwijzer_damage_dry.jpeg.jpeg|200xpx]]</li>
* plowing difficulty for a soil and season;
<li style = "display:inline-block">[[File:Waterwijzer_damage_wet.jpeg.jpeg|200xpx]]</li>
* sowing problems for the given water levels, crop and soil;
<li style = "display:inline-block">[[File:Waterwijzer_damage_indirect.jpeg.jpeg|200xpx]]</li>
* germination problems due to sub-optimal water concentrations in the soil;
<li style = "display:inline-block">[[File:Waterwijzer_damage_salt.jpeg.jpeg|200xpx]]</li>
* harvest issues due to not fully grown crops;
<li style = "display:inline-block">[[File:Waterwijzer_damage_total.jpeg.jpeg|200xpx]]</li>
* sub-optimal conditions for grassland growth;
</ul>
|-
| [[Damage_salt_result_type_(Waterwijzer_Overlay)|DAMAGE_SALT]]
| % loss of earnings
| The loss of agricultural earnings due to salt water irrigation or salt water seepage, for a particular crop, using the highest and lowest ground water levels adjusted by subsidence. These earnings are calculated by the Waterwijzer Landbouw api. Too much salt concentration leads to a reduction of water absorption of plant roots, increased toxicity, problems with nutrients absorption and decreased root growth.
|-
| [[Damage_total_result_type_(Waterwijzer_Overlay)|DAMAGE_TOTAL]]
| % loss of earnings
| The total loss of agricultural earnings for a particular crop, using the highest and lowest ground water levels adjusted by subsidence. These earnings are calculated by the Waterwijzer Landbouw api.
|}

Revision as of 15:10, 9 July 2020

The waterwijzer overlay provides the loss of earnings of crops based several input parameters. These loss of earnings are currently calculated by the Waterwijzer Landbouw module, which is described here.

Usage

The Waterwijzer Overlay results can be used to:

  • Calculate the loss of earnings based on existing crops for currently known highest and lowest ground water levels.
  • Calculate the loss of earnings for crops when using different ground water level management strategies simulated by a Ground Water Overlay or a Subsidence Overlay.
  • Determine the best type of crop per parcel given the highest and lowest ground water levels and type of soil.

Considerations

The Waterwijzer Overlay calculates loss of earnings for agriculture crops based on:

  • A climate scenario;
  • A weather station;
  • Type of soil;
  • Type of crop;
  • Highest and lowest (averaged) ground water levels;
  • The irrigation parameter, which in the Waterwijzer tool is active for a number of the crop types, is currently not taken into account.

Module

A Waterwijzer Overlay can be configured by opening the Waterwijzer Overlay Wizard. More in-depth information can be found under each of the categories below.


Benchmarks button.png
Waterwijzer100px.png
Waterwijzer Module
Benchmarks button.png
Getting started button.png
Tutorials
Benchmarks button.png
Overview button.png
Overview
Benchmarks button.png
Theory button.png
Theory
Benchmarks button.png
Benchmarks button.png
Benchmarks


Result types

The overlay offers the following result types, each storing the agricultural loss of earnings in percentage. The categories are:

  • Dry: low water levels cause crops to dry out;
  • Wet: high water levels cause crops' roots to suffocate;
  • Indirect: Indirect causes, related to combinations of crop, soil, weather and water levels
  • Salt: salt water irrigation causes damage to crops;
  • Total: the sum of the previous four categories.
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