{"title":"VULNERABLE AREAS, THE STREAM POWER INDEX AND THE SOIL CHARACTERISTICS ON THE SOUTHERN SLOPE OF THE LIPOVEI HILLS","authors":"D. Micu, P. Urdea","doi":"10.26471/cjees/2022/017/215","DOIUrl":null,"url":null,"abstract":"The purpose of this study is to calculate SPI (Stream Power Index) in relation with the soil texture and to associate the obtained values with the soil permeability classes and, therefore, to identify the vulnerable areas at the action of the drainage processes, starting by the elementary processes associated with rills erosion and gullys to those ravines and torrential organisms. SPI is the product between the slope and the flow accumulation. SPI values are influenced by the slope. Thus, SPI has high values in areas with high slope and SPI has low values in areas with low slope. In the areas with the high slope, the flow accumulation is low and in the areas with the low slope, the flow accumulation is high. The high values of SPI between +1.94 and +3.49 are on the southern slope of the Lipovei Hills and represent 41.05% of the analyzed area. The inclusion of the soil texture in the SPI calculation formula indicates a medium value of SPI also on the southern slope of the Lipovei Hills and represent 42.71% from the studied territory, which corresponds, in particular, to the loamy texture. The loamy texture has moderate permeability and it is characteristic on 22.81% from the southern slope of the Lipovei Hills. Therefore, the southern slope of the Lipovei Hills is affected by the moderate ravine phenomenon and at the contact with the Timiș-Bega Plain the floods and the puddles phenomenon develops.","PeriodicalId":55272,"journal":{"name":"Carpathian Journal of Earth and Environmental Sciences","volume":" ","pages":""},"PeriodicalIF":0.9000,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Carpathian Journal of Earth and Environmental Sciences","FirstCategoryId":"93","ListUrlMain":"https://doi.org/10.26471/cjees/2022/017/215","RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}
引用次数: 0
Abstract
The purpose of this study is to calculate SPI (Stream Power Index) in relation with the soil texture and to associate the obtained values with the soil permeability classes and, therefore, to identify the vulnerable areas at the action of the drainage processes, starting by the elementary processes associated with rills erosion and gullys to those ravines and torrential organisms. SPI is the product between the slope and the flow accumulation. SPI values are influenced by the slope. Thus, SPI has high values in areas with high slope and SPI has low values in areas with low slope. In the areas with the high slope, the flow accumulation is low and in the areas with the low slope, the flow accumulation is high. The high values of SPI between +1.94 and +3.49 are on the southern slope of the Lipovei Hills and represent 41.05% of the analyzed area. The inclusion of the soil texture in the SPI calculation formula indicates a medium value of SPI also on the southern slope of the Lipovei Hills and represent 42.71% from the studied territory, which corresponds, in particular, to the loamy texture. The loamy texture has moderate permeability and it is characteristic on 22.81% from the southern slope of the Lipovei Hills. Therefore, the southern slope of the Lipovei Hills is affected by the moderate ravine phenomenon and at the contact with the Timiș-Bega Plain the floods and the puddles phenomenon develops.
期刊介绍:
The publishing of CARPATHIAN JOURNAL of EARTH and ENVIRONMENTAL SCIENCES has started in 2006. The regularity of this magazine is biannual. The magazine will publish scientific works, in international purposes, in different areas of research, such as : geology, geography, environmental sciences, the environmental pollution and protection, environmental chemistry and physic, environmental biodegradation, climatic exchanges, fighting against natural disasters, protected areas, soil degradation, water quality, water supplies, sustainable development.