scholarly journals Monitoramento da dinâmica de erosão e remobilização de blocos rochsos em áreas com cicatrizes de corridas de detritos: bacia do rio Tingidor, Morretes PR – Brasil / Monitoring and analysis of the erosion process dynamics and of rock blocks in debris - scarred areas: the case of tingidor river basin, Morretes PR - Brazil

2021 ◽  
Vol 7 (10) ◽  
pp. 99348-99376
Author(s):  
Alessandro Martins ◽  
Everton Passos
Author(s):  
L. A. Novikova ◽  
◽  
S. N. Artemova ◽  
V. K. Makuev ◽  
E. Y. Yakovlev ◽  
...  

The research is devoted to the study of poorly preserved psammophytic variants of meadow steppes in the forest-steppe zone of the Middle Volga Region. It has allowed to define the main stages of re-establishment of vegetational cover and estimate the conservation prospects on the river Ardym in different ecological conditions (geomorphological and edaphyc). It has been established that the re-establishment of psammophytic steppes vegetation occurs in a similar way both on the slopes of the predominantly southern exposition and on watershed surfaces. However, in the absence of anthropogenic effects on watershed surfaces, there is a sylvatization of the vegetation cover resulting in displacement of psammophytic steppes. Only the constantly occurring weak natural erosion processes on the slopes of the predominantly southern exposition contribute to the preservation of these rare communities here. Under intense anthropogenic influence, as well as in the conditions of a significant erosion process, the psammophytic steppes fail to be preserved or replaced by steppe meadows.


AGROFOR ◽  
2018 ◽  
Vol 3 (2) ◽  
Author(s):  
Abdulvahed KHALEDI DARVISHAN ◽  
Mohamad DERIKVANDI ◽  
Ramyar ALIRAMAEE ◽  
Mohsen KHORSAND ◽  
Velibor SPALEVIC ◽  
...  

Application of empirical models is inevitable because of the complexity of process,features, spatial and temporal variation of soil erosion and non-existence or lack ofassociated data. In the present study, maximum outflow and soil erosion intensitywere predicted for Khamsan representative watershed in West of Iran, using IntEromodel. The results of production of erosion material in the river basin (W year),coefficient of the deposit retention (Ru) and real soil losses (G year) were thencompared with the measured soil erosion, SDR and sediment yield data inKhamsan watershed. The intensity of the erosion process were medium in studiedwatershed. The predicted data were compared with the measured sediment yield ofstudied watershed and verified the acceptable results of the IntEro model inKhamsan representative watershed. The results showed that the peak flow is 27.50m3s-1 for a return period of 100 years. The value of Z coefficient of 0.876 indicatesthat the river basin belongs to the second destruction category out of five. Thecalculated net soil loss from the river basin was 12263.44 m3 per year, specific282.81 m3km-2 per year. The strength of the erosion process is strong, andaccording to the erosion type, it is surface erosion.


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