Head-cut gully erosion susceptibility
WebVous recherchez des informations sur les sciences et techniques agricoles? WebApr 11, 2024 · Applying different resampling strategies in machine learning models to predict head-cut gully erosion susceptibility. Alex. Eng. J. (2024) M. Vanmaercke et al. Measuring, modelling and managing gully erosion at large scales: a state of the art ... Spatial modeling of gully head erosion on the loess plateau using a certainty factor and …
Head-cut gully erosion susceptibility
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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. 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 …
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. WebA GIS-based hybrid approach for gully erosion susceptibility mapping (GESM) in the Biarjamand watershed in Iran is presented. A database comprised of 15 geo-environmental factors (GEFs) was compiled and used to predict the spatial distribution of 358 gully locations; 70% (251) of which were extracted for training and 30% (107) for validation.
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 ... WebA total of 119 gully head-cuts were identified and mapped. To train the models’ analysis and prediction capabilities, 83 head-cuts (70% of the total) and the corresponding measures of the conditioning factors were input into each model. The results from the models were validated using the data pertaining to the remaining 36 gully locations (30%).
WebGully erosion is the most active hydro-geomorphological phenomenon in the continental areas due to the high erosion rates triggered by the gully system.... DOAJ is a …
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 interpretability remains a challenge, especially in complex terrain areas. In this study, a WoE-MLC model was used to solve the above problem, which combines machine … highpoint software services incWebNov 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 … small scale glass blowingWebApr 15, 2024 · We presented five head-cut gully erosion susceptibility maps and investigated their predictive accuracy through area under curve (AUC). The AUC test … highpoint shopping centre cafeWebJun 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, … small scale frozen food businessWebИщете информацию по сельскохозяйственной тематике и техническим наукам? highpoint shopping centre australiaWebOct 20, 2024 · Subsequently, FR was used to determine the spatial relationship between the conditioning factors and the head-cut of gullies, whereas RF, BRT, and LR were used to quantify the relative importance of these factors. In the next step, three ensemble gully erosion models, named COPRAS-FR-RF, COPRAS-FR-BRT, and COPRAS-FR-LR … highpoint shopping centre johannesburgWebMay 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. … small scale goat milking equipment