Verbeteren Efficiëntie in Ecologisch Onderzoek door gebruik van QField¶

Door Ryan Bell, GIS Consultant, Delta-Simons Environmental Consultancy

Doel¶

Ecologisch onderzoek efficiënter uitvoeren dan tot nu toe is bereikt met traditionele niet-digitale technieken, waarbij QField wordt gebruikt als een medium voor gestandaardiseerde en flexibele veldgegevensverzameling.

Projecteisen¶

To facilitate effective field work, regular consultation with the Ecology team is required to ensure that QField projects are prepared appropriately. Firstly, basemaps comprising aerial imagery and proposed development plans are prepared by georeferencing and constructing pyramids in QGIS. Point, line and polygon vector layers are then created to support digitisation and associated data collection. Using a range of widgets, attribute fields are customised to meet the requirements of the Ecology team. These include:

Stijl: drop-down list of selectable styles tailored for conducting ecological surveys
Schaal: drop-down list of selectable scales for point and line feature
Info: space for inserting a feature description
Afbeelding: location for images to be captured and stored
Geometrie: contains self-populated geometry values, e.g. area, perimeter, length
Timestamp: records the time and date that a feature was created/last modified

Figure 1 - Overview of the traditional workflow in ecological surveying at Delta-Simons compared with the workflow created using QField. Single-headed arrows indicate the direction of one-way communication, whereas double-headed arrows indicate two-way conversation.

Resultaat¶

Delta-Simons besparen tot nu toe ongeveer 40% van de tijd verbruikt door traditionele ecologische veldgegevensverzameling. QField heeft de ecologische onderzoeksworkflow aanzienlijk verbeterd door:

De noodzaak om GIS-uitvoer van fysieke tekeningen opnieuw te maken, wegnemen
Reducing the overall amendments required for GIS outputs
Improving communication channels (see Figure 1.)
Improving the accuracy and quality of data