عنوان المقال عربي
تطوير أداة فعالة في نظم المعلومات الجغرافية لتحديد مستويات تآكل الوديان بالاعتماد على طريقة بيرجسما
Abstract
Gully erosion is the most significant environmental threat in the field of natural resource management. Recently, one of the complexities of soil erosion studies in Iraq is the lack of information on the location of gullies, as well as relying on traditional methods in studying this type of erosion. The objective of this paper is to develop an adaptive tool for estimating gully erosion levels based on Python and modular building in ArcGIS environment. This tool can be used for dealing with the stream network and calculate the length of the valley, as well as divide the lengths of the Stream into squares of grid and then determine and map the levels of gully erosion. The proposed methodology with the adaptive developed tool has been applied to compute the gully erosion levels in a Duhok basin which is located northeastern of Dohuk governorate- Kurdistan region and covers about (404.8) km2. To estimate erosion levels, the study area was divided into equal squares using the fishnet tool, then the Bergsma equation was applied after extracting streams and calculating areas. The developed tool was created based on the two factors, the one related to stream network density, while the second depends on the cell size. To achieve that, multi-threshold values were tested for each factor. The finding revealed that there are levels of gully erosion, which were classified into seven classes. Also, the results also supported the control of the geological and topographical factors at these levels. The developed tool also gave high efficiency in classifying erosion levels, and the possibility of applying it in other areas.
Keywords
Valley erosion, unit construction, Bergsma method, environmental problems
Recommended Citation
Ismaeel, Omar Abdullah; Thannoun, Rayan Ghazi; and Yahya, Bashar Moneer
(2025)
"Developing an active tool in GIS to determine gully erosion levels depending on the Bergsma method,"
Uruk for Humanities: Vol. 14:
Iss.
3, Article 66.
Available at:
https://muthuruk.mu.edu.iq/journal/vol14/iss3/66
