scholarly journals Effects of Land Use/Land Cover Changes on Selected Soil Physical and Chemical Properties in Shenkolla Watershed, South Central Ethiopia

2020 ◽  
Vol 2020 ◽  
pp. 1-8
Author(s):  
Belayneh Bufebo ◽  
Eyasu Elias
Keyword(s):  
Land Use ◽  
Land Cover ◽  
Soil Fertility ◽  
Soil Properties ◽  
Land Cover Changes ◽  
Land Use Land Cover ◽  
Forest Land ◽  
South Central ◽  
Effects Of Land Use ◽  
Poor Management

Land use change from natural ecosystems to managed agroecosystems is one of the main causes of soil fertility decline. Severe soil erosion caused by agricultural expansion and poor management worsened soil nutrient depletion in cultivated outfields (crop lands). This study was conducted to examine the effects of land use and land cover changes (LU/LC) on selected soil physicochemical properties in the Shenkolla watershed. A total of 40 top soil samples at 0–20 cm depth were collected from four land use/land cover types (forest land, grazing land, cultivated outfield, and cultivated homestead garden fields). The analysis of variance (ANOVA) was applied to determine differences in soil parameters among land use types. Treatment means comparison was determined using the least significant difference (LSD) at 0.05 level of significances. The result indicated that there were significant P<0.05 differences among the four LU/LC types for soil characteristics. For most parameters evaluated, the most favorable soil properties were observed in the forest land, followed by homestead garden fields, while the least favorable soil properties were found in intensively cultivated outfields. Increase in the extent of cultivated land at the expense of forest cover associated with poor management has promoted significant loss of soil quality in intensively cultivated outfields. Reducing the land cover conversion and adopting proper management practices of the soil commonly used in homestead garden fields are very crucial in order to improve soil fertility in intensively cultivated outfields.

scholarly journals Land Use/Land Cover Change and Its Driving Forces in Shenkolla Watershed, South Central Ethiopia

2021 ◽  
Vol 2021 ◽  
pp. 1-13
Author(s):  
Belayneh Bufebo ◽  
Eyasu Elias
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Land Cover ◽  
Agricultural Land ◽  
Driving Forces ◽  
Land Cover Changes ◽  
Land Use Land Cover ◽  
Forest Land ◽  
Central Ethiopia ◽  
South Central

Land use change is one of the challenges that aggravate environmental problems. Understanding the scope of land use change, driving forces, and consequences is very crucial for proper management of land resources. We investigated land use/land cover changes using remote sensing data (for the years 1973, 1995, and 2017), and field observation, household survey, key informant interview, and focus group discussion were used to determine the drivers and consequences of land use/land cover changes in Shenkolla watershed, south central Ethiopia. Unsupervised and supervised classification techniques were employed to get thematic information from satellite imagery. ArcGIS 10.3 and QGIS v 3.0 softwares were used to accomplish the analysis. The results disclosed that Shenkolla watershed has changed significantly during the past 4 decades between 1973 and 2017. This observed change indicates a reduction in forest land and an increase in agricultural land. Forest land was reduced from 29.51% in 1973 to 20.52% in 2017, but agricultural land was expanded from 70.49% in 1973 to 79.48% in 2017. Agricultural expansion, policy change and social unrest, population pressure, shortage of farm land, and biophysical factors were major driving forces of the LU/LC changes. Environmental implications such as climate change, biodiversity loss, scarcity of basic forest products, habitat alteration, decline in quality and availability of water, and crop yield reduction are the consequences of the LU/LC change. The expansion of agricultural land at the expense of forest cover in Shenkolla watershed has negative implications on the natural resources and the livelihood of local people. Hence, appropriate measures need to be employed to reduce the dramatic change in land use and to harmonize environmental conservation with human livelihood.

Simulation of the climatic effects of land use/land cover changes in eastern China using multi-model ensembles

2017 ◽  
Vol 154 ◽  
pp. 1-9 ◽  
Author(s):  
Xianliang Zhang ◽  
Zhe Xiong ◽  
Xuezhen Zhang ◽  
Ying Shi ◽  
Jiyuan Liu ◽  
...  
Keyword(s):  
Land Use ◽  
Land Cover ◽  
Eastern China ◽  
Land Cover Changes ◽  
Land Use Land Cover ◽  
Climatic Effects ◽  
Model Ensembles ◽  
Effects Of Land Use

scholarly journals Modelling the effects of land-use/land-cover changes on the near-surface atmosphere in southern South America

2011 ◽  
Vol 32 (8) ◽  
pp. 1206-1225 ◽  
Author(s):  
Adriana Beltrán-Przekurat ◽  
Roger A. Pielke Sr ◽  
Joseph L. Eastman ◽  
Michael B. Coughenour
Keyword(s):  
Land Use ◽  
South America ◽  
Land Cover ◽  
Land Cover Changes ◽  
Land Use Land Cover ◽  
Near Surface ◽  
Southern South America ◽  
Surface Atmosphere ◽  
Effects Of Land Use

scholarly journals Urban induced land use land cover changes in upper Deme watershed, Southwest Ethiopia

2021 ◽  
Vol 9 (1) ◽  
pp. 3045-3053
Author(s):  
Kambo Dero ◽  
Wakshum Shiferaw ◽  
Biruk Zewde
Keyword(s):  
Land Use ◽  
Land Cover ◽  
Land Cover Change ◽  
Water Bodies ◽  
Land Cover Changes ◽  
Land Use Land Cover ◽  
Forest Land ◽  
Bare Land ◽  
Work Habit ◽  
Settlement Areas

The study was aimed to assess urban induced land use land cover changes in the upper Deme watershed. Three satellite images of 1986, 2002, and 2019 were analyzed by ArcGIS and processed by supervised classification. Land use land cover change in the watershed increased for settlement, bare land, and croplands in the period 1986-2019 by 56.6%, 53%, and 0.25%, respectively. However, the land use land cover change in the watershed decreased for a water body, forest, and grassland by 65%, 57.7%, and 7%, respectively. These enforced to change the work habit and social bases. Out of converted lands, during 1986-2002, 34.9%, 53%, 18%, 40.9%, and 10.6% of bare land, cropland, forest land, grassland, and water bodies, respectively, in the upper Deme watershed were changed into settlement areas. During 2002-2019, 30.7%, 36.8%, 26.9%, 66%, and 33.3% of bare land, cropland, forest land, grassland, and water bodies, respectively, were changed into settlement areas. This shows urbanization results in a different change in economic, social, land use land cover, and watershed management activities in the upper Deme watershed.

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