scholarly journals Estimation of Land Degradation Loss by Water Erosion: Case of the Site of Biological and Ecological Interest of Ain Asmama (Western High Atlas, Morocco)

2021 ◽  
Vol 6 (3) ◽  
pp. 241-247
Author(s):  
Adnane Labbaci ◽  
Said Moukrim ◽  
Said Lahssini ◽  
Said Laaribya ◽  
Hicham Mharzi Alaoui ◽  
...  
Keyword(s):  
Land Degradation ◽  
Water Erosion ◽  
High Atlas

The Risk of Water Erosion on the Foothills of the Middle High Atlas (Morocco): Tagueleft Basin Case Study : خطر التعرية المائية على السفوح بالأطلس الكبير الأوسط (المغرب): دراسة حالة حوض تاكلفت

2020 ◽  
Vol 4 (3) ◽  
Author(s):  
Rizki Mohamed
Keyword(s):  
Land Degradation ◽  
Local Development ◽  
Remote Sensing Data ◽  
Potential Method ◽  
Water Erosion ◽  
High Atlas ◽  
Negative Impacts ◽  
The Impact

The Tagueleft basin is geographically located in the northern edges of the Middle High Atlas, which is a geomorphological fragile area. The impact of human activity has accelerated water erosion in this mountains area. This is reflected in dynamic and unstable foothills, a decrease in forests density and degradation in the production of the land. On the other hand, land degradation due to human overexploitation of natural resources has increased land degradation in the area. The interest in the risk of erosion on the foothills in the area under study comes in the context of our contribution to clarify the role of geomatical and geomorphological approaches in explaining and identifying the mechanisms responsible for current foothills dynamism through water erosion and its negative impacts on the environment and local development. The aim of the study was to use the EPM (Erosion Potential Méthod) which is formulated by Slobodan Gavrilovic for erosion in mountainous areas and to test the reliability of its results based on fieldwork and remote sensing data. The results of the erosion assessment and its quantification by applying the coefficient (W) for the theoretical model in the area under study have shown that erosion is very important and it touches on wide areas as it appears through the domain classification of the distribution erosion in Tagueleft basin.

Water erosion aspects of land degradation neutrality to landscape planning tools at national scale

Geoderma ◽  
2020 ◽  
Vol 363 ◽  
pp. 114093 ◽  
Author(s):  
Selma Beatriz Pena ◽  
Maria Manuela Abreu ◽  
Manuela Raposo Magalhães ◽  
Nuno Cortez
Keyword(s):  
Land Degradation ◽  
Landscape Planning ◽  
Water Erosion ◽  
National Scale ◽  
Planning Tools

A model-based integrated assessment of land degradation by water erosion in a valuable Spanish rangeland

2014 ◽  
Vol 55 ◽  
pp. 201-213 ◽  
Author(s):  
J. Ibáñez ◽  
J.F. Lavado Contador ◽  
S. Schnabel ◽  
M. Pulido Fernández ◽  
J. Martínez Valderrama
Keyword(s):  
Land Degradation ◽  
Integrated Assessment ◽  
Water Erosion ◽  
Model Based

The use of spectral and geomorphometric data for water erosion mapping in El Ksiba region in the central High Atlas Mountains of Morocco

2014 ◽  
Vol 6 (3) ◽  
pp. 159-169 ◽  
Author(s):  
Bahija Bachaoui ◽  
El Mostafa Bachaoui ◽  
Soufiane Maimouni ◽  
Rachid Lhissou ◽  
Abderrazak El Harti ◽  
...  
Keyword(s):  
Water Erosion ◽  
High Atlas ◽  
Atlas Mountains ◽  
High Atlas Mountains ◽  
Central High ◽  
Central High Atlas

scholarly journals Spatial analysis of Samara region land degradation and differentiation of antierosion territory organization

2020 ◽  
Vol 27 ◽  
pp. 00142
Author(s):  
E. V. Samokhvalova ◽  
S. N. Zudilin ◽  
O. A. Lavrennikova
Keyword(s):  
Spatial Analysis ◽  
Soil Fertility ◽  
Land Degradation ◽  
Agricultural Land ◽  
Water Erosion ◽  
Economic Losses ◽  
Erosion Processes ◽  
Degradation Factor ◽  
Key Points ◽  
Factor Coefficient

In the research, a spatial analysis of the degradation of Samara region agricultural land with the assessment of economic losses due to water erosion is carried out. A map chart of the distribution of districts with different degrees of erosion has also been developed. The values of the degradation factor coefficient and economic losses due to the influence of erosion processes are calculated. The key points of antierosion territory organization and land regulation depending on landscape nature and kind of damage are represented. The plan of action for the antierosion territory organization of a farm in Kinelsky district is proposed and its effectiveness to stop and prevent erosion processes, as well as for rational use of land and increase soil fertility is shown.

scholarly journals Land Degradation Due To Mining: The Gunda Scenario

2013 ◽  
Vol 2 (12) ◽  
pp. 144-158
Author(s):  
Rejoice Paul Mbaya
Keyword(s):  
Water Pollution ◽  
Land Degradation ◽  
Vegetation Cover ◽  
Secondary Data ◽  
Water Erosion ◽  
Environmental Hazards ◽  
Economic Returns ◽  
Stream Channels ◽  
Water Courses ◽  
Wind And Water Erosion

Several studies have been carried out on the effects of mining on the environment, these have been characterized by landscape devastation, deforestation, it has also exposed the land to both wind and water erosion, water pollution and other environmental hazards which poses threat to humans in diverse ways. The study is set out to examine land degradation due to mining in Gunda area of Biu plateau with emphasis on the landscape. Both primary and secondary data were used. The nature of the environment such as destruction to the landscape, lost in vegetation cover, scattered open pits, alteration of water courses etc were all considered. One of the findings revealed that mining has led to the discovery of diatomite in the pits along stream channels which they use locally for painting purposes in building. The findings further revealed that reclamation work may not likely take place soon, because there are no economic returns from it. The study therefore, recommended among others, that reclamation be encouraged by using some of the pits for wastes disposal with farm and household residues so as to refill it especially those on farmlands, also measures should be taken by the inhabitants in restoring back the altered stream channels to their former glory by filling the cuts.

Soil organic carbon losses by water erosion in a Mediterranean watershed

Soil Research ◽  
2017 ◽  
Vol 55 (4) ◽  
pp. 363 ◽  
Author(s):  
Ahmet Cilek
Keyword(s):  
Soil Erosion ◽  
Organic Carbon ◽  
Soil Organic Carbon ◽  
River Basin ◽  
Land Degradation ◽  
Agricultural Land ◽  
Water Erosion ◽  
Assessment Model ◽  
Ecosystem Functions ◽  
The Mediterranean

Soil organic carbon (SOC) is one of the primary elements required in the functioning of ecosystems. Soil erosion, a major mechanism of land degradation, removes SOC and transfers it to the hydrosphere or the atmosphere, thereby affecting key ecosystem functions and services. The Mediterranean region is highly susceptible to land degradation because of erosion due to heavy rains following long, dry, hot summers. Although the Mediterranean landscape typically has a high altitude and incline, the soil is brittle and soft and is easily washed away by rain. Thus, vast regions in Turkey have been afflicted by this type of soil degradation. This study aimed to (1) estimate the temporal distribution of water erosion in the Seyhan River Basin, (2) assess the spatial distribution of SOC and (3) estimate the depletion of SOC through soil erosion using the Pan-European Soil Erosion Risk Assessment model, a physically based, regionally scaled soil erosion model. The annual amount of soil eroded from the Seyhan River Basin is estimated to be 7.8million tonnes per hectare (tha–1year–1). The amount of fertile soil loss from agricultural areas is ~1.2million tonnes per year. The maximum amount of soil erosion occurs in maintenance scrubland and degraded forest areas, contributing to 68% of erosion, followed by that in agricultural land, contributing to 27% of erosion, with the remaining in forests and urban areas.

scholarly journals Cartographic analysis of the distribution of degraded lands (on the example of the Рoltava region)

2021 ◽  
pp. 74-81
Author(s):  
Serhii Lashko ◽  
Inna Shelkovska ◽  
Nadiia Halchenko ◽  
Olena Klyuka
Keyword(s):  
Land Degradation ◽  
Wind Erosion ◽  
Agricultural Land ◽  
Water Erosion ◽  
River Network ◽  
Relative Distribution ◽  
Agricultural Lands ◽  
Degraded Land ◽  
Degraded Lands ◽  
Significant Difference

Cartographic analysis can be considered as one of the means of the land monitoringsystem, in particular, by the distribution of degradation processes. The work is proposed to createfor regions of cartogram of total distribution of degraded agricultural land and cartograms offraction of agricultural lands that have undergone water and wind erosion, acidification, salinization,with indispensable drawing on these cartograms of the river network scheme.  The zoning of the Poltava region is presented and analyzed in terms of the total distribution ofdegraded agricultural land, as well as separately by the particles of water, wind erosion,acidification, salinization.According to the relative distribution of degraded agricultural lands (without taking intoaccount the overlap of various types of degradation) within the Poltava region, there are 2 groups ofdistricts of increased land degradation: 1) northern (covers 7 districts – Pyriatyn, Chornukhy, Lubny,Lokhvytsia, Myrhorod, Hadiach, Zinkiv) and 2) southeastern (covers 3 districts – Kobeliaky, NoviSanzhary and Mashivka).Water erosion is inherent in districts with significant difference in heights and largest forestcover. This is primarily Dykanka, Zinkiv, Reshetylivka districts (watershed between rivers of Psel andVorskla), Lokhvytsia and Chornukhy districts (watershed between rivers of Sula and Udai) and theChutove district (watershed between rivers of Vorskla and Orel). Wind erosion covers predominantlynorthwestern, north and southeastern districts – Pyriatyn, Chornukhy, Hrebinka, Lokhvytsia,Hadiach, Mashivka, Novi Sanzhary.Cartograms of distribution of degraded land are supplemented by the river network on them.The method of their creation is described. The cartographic method is substantiated by theinterconnection of the districts of increased acidification of soils with basins of the rivers Udai andVorskla, and the districts of minimum acidification of soils – with the basin of the river Khorol.Salinization of soils of the Poltava region should be associated, obviously not with superficial,and with groundwater. In the future, it is recommended to use for a cartographic analysis of thedistribution of degraded lands additionally maps of groundwater hydroisogyps.

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