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利用QField提高生态测量效率

Delta-Simons环境咨询公司GIS顾问Ryan Bell

目标

To conduct ecological surveying more efficiently than has been previously achieved through traditional non-digital techniques, using QField as a medium for standardised and flexible field data collection.

工程要求

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:

样式

drop-down list of selectable styles tailored for conducting ecological surveys

比例尺

drop-down list of selectable scales for point and line feature

信息

space for inserting a feature description

图像

location for images to be captured and stored

几何图形

contains self-populated geometry values, e.g. area, perimeter, length

时间戳

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.
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.

结果

Delta-Simons are saving approximately 40% of the time previously consumed by traditional ecological field data collection. QField has significantly improved the ecological surveying workflow by:

  • 无需从物理制图中重新创建GIS输出
  • 减少地理信息系统产出所需的总体修正
  • 改善传播渠道(如图1)
  • 提高数据的准确性和质量

Delta Simons

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