Waterwijzer Overlay: Difference between revisions

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The waterwijzer overlay provides the yield loss of crops based on several [[Waterwijzer Overlay#Considerations|input parameters]]. The yield loss is currently calculated by the Waterwijzer Landbouw module, which is described [https://waterwijzerlandbouw.wur.nl/ here].
==Usage==
The Waterwijzer Overlay results can be used to:
* Calculate the yield loss based on existing crops for currently known highest and lowest groundwater levels.
* Calculate the yield loss for crops when using different groundwater level management strategies simulated by a Groundwater Overlay or a Subsidence Overlay.
* Determine the best type of crop per parcel given the highest and lowest groundwater levels and type of soil.
==Considerations==
The Waterwijzer Overlay calculates yield loss for agriculture crops based on:
* A [[Climate_scenario_(Waterwijzer_Overlay)|climate scenario]];
* A [[Weather_station_(Waterwijzer_Overlay)|weather station]];
* [[Bofek_id_(Waterwijzer_Overlay)|Type of soil]];
* [[Brp_code_(Waterwijzer_Overlay)|Type of crop]];
* [[High_ground_water_prequel_(Waterwijzer_Overlay)|Highest]] and [[Low_ground_water_prequel_(Waterwijzer_Overlay)|lowest]] (averaged) groundwater levels;
Additionally:
* The Overlay makes use specifically of version 2.0.0 of the [https://waterwijzerlandbouw.wur.nl/tool.html Waterwijzer tool].
* The irrigation parameter, which in the [https://waterwijzerlandbouw.wur.nl/tool.html Waterwijzer tool] is active for a number of the crop types, is currently not taken into account.
==Result types==
==Result types==
The overlay offers the following result types:
The overlay offers multiple result types. Each result type expresses the yield loss due to specific circumstances as a percentage.
{| class="wikitable"
{{result types|suppresscategory=true|allowselflinks=true|
! Result type
  {{:Damage dry        result type (Waterwijzer Overlay)}}
! Unit
  {{:Damage wet        result type (Waterwijzer Overlay)}}
! Description
  {{:Damage indirect  result type (Waterwijzer Overlay)}}
|-
  {{:Damage salt      result type (Waterwijzer Overlay)}}
| [[Damage_dry_result_type_(Subsidence_Overlay)|DAMAGE_DRY]]
  {{:Damage total      result type (Waterwijzer Overlay)}}
| % 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.
 
|-
<ul>
| [[Damage_wet_result_type_(Subsidence_Overlay)|DAMAGE_WET]]
<li style = "display:inline-block">[[File:Waterwijzer_damage_dry.jpeg|200xpx]]</li>
| % loss of earnings
<li style = "display:inline-block">[[File:Waterwijzer_damage_wet.jpeg|200xpx]]</li>
| 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.
<li style = "display:inline-block">[[File:Waterwijzer_damage_indirect.jpeg|200xpx]]</li>
|-
<li style = "display:inline-block">[[File:Waterwijzer_damage_salt.jpeg|200xpx]]</li>
| [[Damage_indirect_result_type_(Subsidence_Overlay)|DAMAGE_INDIRECT]]
<li style = "display:inline-block">[[File:Waterwijzer_damage_total.jpeg|200xpx]]</li>
| % loss of earnings
</ul>
| 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.
 
==How-to's==
* [[How to add and remove an Overlay]]
* [[How to edit an overlay legend]]
* [[How to add the Waterwijzer Overlay]]
* [[How to configure the Waterwijzer Overlay to use groundwater results from other calculations]]


Taken into account are:
==Module==
* soil temperatures in comparison with crop growth calendar;
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.  
* plowing difficulty for a soil and season;
{{WaterwijzerOverlay model attribute nav}}
* sowing problems for the given water levels, crop and soil;
{{Overlay nav}}
* germination problems due to sub-optimal water concentrations in the soil;
[[Category:Overlays with result types]]
* harvest issues due to not fully grown crops;
* sub-optimal conditions for grassland growth;
|-
| [[Damage_salt_result_type_(Subsidence_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_(Subsidence_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.
|}

Latest revision as of 14:32, 13 December 2023

This functionality is currently unavailable or non-functional.

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

Usage

The Waterwijzer Overlay results can be used to:

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

Considerations

The Waterwijzer Overlay calculates yield loss for agriculture crops based on:

Additionally:

  • The Overlay makes use specifically of version 2.0.0 of the Waterwijzer tool.
  • The irrigation parameter, which in the Waterwijzer tool is active for a number of the crop types, is currently not taken into account.

Result types

The overlay offers multiple result types. Each result type expresses the yield loss due to specific circumstances as a percentage.

Icon Result type Unit Mode Description
Overlay icon waterwijzer damage dry.png DAMAGE_DRY  % yield loss The loss of agricultural yield due to low groundwater levels.
Overlay icon waterwijzer damage wet.png DAMAGE_WET  % yield loss The loss of agricultural yield due to high groundwater levels.
Overlay icon waterwijzer damage indirect.png DAMAGE_INDIRECT  % yield loss The loss of agricultural yield due to indirect causes.
Overlay icon waterwijzer damage salt.png DAMAGE_SALT  % yield loss The loss of agricultural yield due to salt water irrigation or ground bottom flow with salt water.
Overlay icon subsidence damage total.png DAMAGE_TOTAL  % yield loss The total loss of agricultural yield for a particular crop.
  • Waterwijzer damage dry.jpeg
  • Waterwijzer damage wet.jpeg
  • Waterwijzer damage indirect.jpeg
  • Waterwijzer damage salt.jpeg
  • Waterwijzer damage total.jpeg

How-to's

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.

Waterwijzer Module
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
Group
Spatial
BRP Code •  BOFEK ID
Grid
High ground water • Low ground water
Overlay
Climate scenario • Weather station
Related
Result type


Overlays
Categorization
Grid • Parent • Result Child • Result Parent • Result type
Default
City
Administrative
Ownership • Ownership Grid • Zipcodes • Zoning • Neighborhoods • Municipalities • Vacancy
Environmental
Heat Stress • Traffic Density • Traffic Noise • Traffic NO2 • Livability
Water
Rainfall • Flooding • Groundwater • Subsidence • Watershed
Grid Calculation
Average • Combo • Distance • Sight Distance • Travel Distance • Inference • Iteration
Geo Data
GeoTIFF • WCS • WMS • Image • Area • Attribute • Function
Topography
Satellite • Digital Surface Model • Digital Terrain Model • Underground • Source
Network
Network Distance • Network Overview • Network Ownership
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