Head-cut gully erosion susceptibility

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August undefined, 2024

WebA head cut (alternately headcut [1] ), in stream geomorphology, is an erosional feature of some intermittent and perennial streams. Headcuts and headward erosion are hallmarks … WebGully formation through water-induced soil erosion and related to devastating land degradation is often a quasi-normal threat to human life, as it is responsible for huge loss of surface soil. Therefore, gully erosion susceptibility (GES) mapping is necessary in order to reduce the adverse effect of land degradation and diminishes this type of harmful …

Machine learning based soil erosion susceptibility prediction …

WebOct 25, 2024 · Gully head cuts are most common on slopes of 15–30%, where surface runoff accumulates. In most cases, gullies are linked to the drainage lines network, allowing material eroded from upland regions to be evacuated more easily. ... The gully erosion susceptibility maps in this study were prepared using different paradigms, and … WebThe predicted head-cut gully erosion susceptibility maps can be used by policy makers and local authorities for soil conservation and to prevent threats to human activities. … freelrc 网站

Machine Learning-Based Gully Erosion Susceptibility Mapping: A …

WebThe predicted head-cut gully erosion susceptibility maps can be used by policy makers and local authorities for soil conservation and to prevent threats to human activities. Abstract The objective of this study is to assess the gully head-cut erosion susceptibility and identify gully erosion prone areas in the Meimand watershed, Iran. In recent ... Web¿Busca información de ciencia y tecnología agrícola? Webthat.. .>The results of the assessment indicated that the use of resampling algorithms increases the efficiency of the models. The integrated optimism-bootstrap-BRT, optimism-bootstrap-SVM, and Optimism-Bootstrap-RF models with AUC 0.85, 0.823 and free lr

Evaluation of different boosting ensemble machine …

Ensemble of Machine-Learning Methods for Predicting Gully Erosion ...

WebA head cut (alternately headcut [1] ), in stream geomorphology, is an erosional feature of some intermittent and perennial streams. Headcuts and headward erosion are hallmarks of unstable expanding drainage features such as actively eroding gullies. [1] Headcuts are a type of knickpoint that, as the name indicates, occur at the head (upstream ... WebFeb 7, 2024 · The application of two machine learning methods for predicting the gully head cut susceptibility in northern Iran showed that the maps generated by these algorithms could provide an appropriate strategy for geo-conservation and restoration efforts in gullying-prone areas. ... Evaluation of different boosting ensemble machine learning models and ... free lpn training for seniorsWebMay 27, 2024 · Gully erosion susceptibility (GES) maps are essential for managing land resources and erosion control. Choosing the optimal horizontal resolution in GES mapping is a challenge. In this study, the optimal resolution for GES mapping in a complex loess hilly area on the Chinese Loess Plateau was tested using two machine learning algorithms. … free lpn programs in ga

"WebData provider: National Agricultural Library " - Head-cut gully erosion susceptibility

Head-cut gully erosion susceptibility

IJGI Free Full-Text Gully Erosion Susceptibility Mapping in Highly ...

WebFeb 28, 2024 · The maximum head cut drainage area was found in gully number 29. It also had a high proportion of bare soil (99%). The data indicate that larger head-cut drainage … WebMar 1, 2016 · Gully headcut retreat rates. As shown in Fig. 6, the variation of our compiled GHR rates worldwide is very large. Linear retreat rates vary between 0.01 m year −1 (our …

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WebJun 15, 2024 · The main question of gully-erosion susceptibility is expressed by the first DS function, which we use here to build our model. A simplistic explanation would be for … WebJun 15, 2024 · Gully erosion susceptibility maps have been prepared using boosted regression trees (BRT), multivariate adaptive regression spline (MARS) and spatial logistic regression (SLR) with proposed resampling techniques and SLR bootstrap optimism is more optimal than any other methods according to its robust nature.

WebGully erosion is considered one of the major issues of land sustainability because it can remove considerable volumes of sediment and productive soils. Once started, gullies can continue to move by headcut retreat, or slumping of the side walls. Studies of gully development require constant monitoring activities which are not possible in not-well … WebJan 7, 2024 · This research investigates the predictive performance of seven multiple-criteria decision-making (MCDM), statistical, and machine learning (ML)-based models and their ensembles for gully erosion susceptibility mapping (GESM). A case study of the Dasjard River watershed, Iran uses a database of 306 gully head cuts and 15 conditioning factors.

WebThe main objectives of this study are identifying and mapping the extant gullies in the Chah Mousi watershed by (a) creating an inventory; (b) mapping, modeling, and predicting the locations of gully head-cuts; (c) … WebNov 15, 2024 · The objective of this study is to assess the gully head-cut erosion susceptibility and identify gully erosion prone areas in the Meimand watershed, Iran. In recent years, this study area has been greatly influenced by several head-cut gullies due to unusual climatic factors and human induced activity. The present study is therefore …

WebApr 15, 2024 · We presented five head-cut gully erosion susceptibility maps and investigated their predictive accuracy through area under curve (AUC). The AUC test …

WebOct 9, 2024 · Gully erosion is the most severe type of water erosion and is a major land degradation process. Gully erosion susceptibility mapping (GESM)’s efficiency and … freelrcWebSep 1, 2024 · DOI: 10.1016/J.CATENA.2024.04.032 Corpus ID: 164831687; Gully erosion susceptibility mapping using GIS-based multi-criteria decision analysis techniques @article{Arabameri2024GullyES, title={Gully erosion susceptibility mapping using GIS-based multi-criteria decision analysis techniques}, author={Alireza Arabameri and … bluegreen vacations at atlantic palaceWebJun 10, 2024 · Gully erosion susceptibility maps are very important for landscape planners and policy makers and help to facilitate decision making for the implementation of sustainable land resources and soil erosion management strategies. ... Gully lengthening and widening processes trigger very fast gully development through head cut retreat, … free lrn