QGIS-based support tools to simplify the complex design challenges of subsurface drainage systems

IF 1.7 4区农林科学 Q2 AGRONOMY

Irrigation and Drainage Pub Date : 2024-08-06 DOI:10.1002/ird.3011

Anamelechi Falasy, Richard Cooke

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Abstract

We developed a comprehensive set of tools to simplify the design and layout of subsurface drainage systems. These tools, which utilize publicly available LiDAR (light detection and ranging) datasets, may also be used for other applications. The tool streamline operations include harmonizing geographic information system (GIS) layers into a single State Plane or Universal Transverse Mercator Coordinate System, clipping and thinning LiDAR data within a defined boundary, generating drainage networks with contour lines and laylines for surface flow visualization, identifying depressions and creating gridlines with user-specified angles and spacings. To showcase their use, an illustrative example using a diverse dataset from the University of Illinois’ South Farm is provided. These user-friendly tools, optimized for compatibility with all versions of QGIS3 (quantum geographic information system 3), are freely accessible for download or installation from the official QGIS plugin repository. A user manual with step-by-step instructions is available online on the Illinois Drainage Guide website.

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基于qgis的支持工具可简化地下排水系统的复杂设计挑战

我们开发了一套全面的工具来简化地下排水系统的设计和布局。这些工具利用公开可用的LiDAR（光探测和测距）数据集，也可用于其他应用。该工具简化了操作流程，包括将地理信息系统（GIS）层统一为单个状态平面或通用横向墨卡托坐标系，在定义的边界内剪切和细化LiDAR数据，生成具有等高线和分层线的排水网络，用于地表流动可视化，识别洼地并创建具有用户指定角度和间距的网格线。为了展示它们的使用，提供了一个使用来自伊利诺伊大学南部农场的不同数据集的说明性示例。这些用户友好的工具，优化了与所有版本的QGIS3（量子地理信息系统3）的兼容性，可以从官方QGIS插件库免费下载或安装。在伊利诺斯州排水指南网站上，可以在线获得带有逐步说明的用户手册。

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来源期刊

Irrigation and Drainage 农林科学-农艺学

CiteScore

3.40

自引率

10.50%

发文量

107

审稿时长

3 months

期刊介绍： Human intervention in the control of water for sustainable agricultural development involves the application of technology and management approaches to: (i) provide the appropriate quantities of water when it is needed by the crops, (ii) prevent salinisation and water-logging of the root zone, (iii) protect land from flooding, and (iv) maximise the beneficial use of water by appropriate allocation, conservation and reuse. All this has to be achieved within a framework of economic, social and environmental constraints. The Journal, therefore, covers a wide range of subjects, advancement in which, through high quality papers in the Journal, will make a significant contribution to the enormous task of satisfying the needs of the world’s ever-increasing population. The Journal also publishes book reviews.