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There is a growing concern over change in vegetation dynamics and drought patterns with the increasing climate variability and warming trends in Africa, particularly in the semiarid regions of East Africa. Here, several geospatial techniques and datasets were used to analyze the spatio-temporal vegetation dynamics in response to climate (precipitation and temperature) and drought in Eritrea ...[Show full abstract] semi-arid main Ethiopian Rift Valley and (ii) determine variables that significantly influence the gully erosion rate at three periods (1957, 1972 and 2005) and establish ...In arid and semi-arid climates, such as the Semnan province, Iran, gullies cause very extensive damage and are considered a major environmental problem [26,46]. Therefore, the identification of the causes of gully erosion development and its zoning for comprehensive management planning by executive agencies remain essential.Gully head erosion is a significant process in semi-arid regions contributing to land degradation and hillslope dynamics. Predicting when and where gully heads will expand under different seasonal scenarios is an essential step to take the appropriate mitigation measures. The LANDPLANER model was applied in this study area in order to analyze ...

The Support Vector Machine, Analytical Neural Network and Deep Learning Neural Network are considered for the estimation of gully erosion susceptibility in Dwarkeswar River basin and the DLNN is the most optimal model in terms of the predictive capacity. Abstract The impact of climate change and its associated extreme rainfall event is the major threats of land resources in subtropical monsoon ...Because of arid and semi-arid climate, piping and gully erosion is an active phenomenon in the agricultural lands, bare land, and rangeland areas of the Shazand watershed, Markazi Province, central Iran. The goal of this research was to identify the priority conditioning factors of gully erosion, map the susceptibility of the Shazand watershed ...Even minor gully- ing can alter soil moisture conditions and contribute to poor plant cover. To restore arid climates, mechanical means may be needed to ...A low area of land between hills or mountains, typically with a river or stream flowing through it. A small brook or stream. An abrupt or steep fall or slope. A road or track that is significantly lower than the land on either side. A path or track laid down for walking or traveling. … more . . Noun. .

Arid and semi-arid regions store approximately 27% of global soil organic carbon (SOC), thus playing an important role in the global carbon cycle. Although afforestation is widely used to achieve the goals of landscape protection and ecological restoration in these regions, its effects on the dynamics of SOC and total nitrogen (TN) stocks as ...From 2000 to 2021, agricultural water consumption accounted for more than 80% of total water consumption each year in China's arid areas, and agricultural water consumption increased by 1.47 billion m 3 during that time ().Groundwater, the main water source for agricultural production in these regions (), decreased by more than 11.08 billion m 3 (), resulting in large-scale aquifer depletion (). ….

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Gully erosion is an environmental problem in arid and semi-arid areas. Gullies threaten the soil and water resources and cause off- and on-site problems. In this research, a new hybrid model combines …Gully erosion has a huge negative impact on soil productivity and potable water supplies, while measures to control it are expensive. ... Low-cost soil conservation technique for controlling gully erosion in the semi-arid area of the Free State province ... (SPOT 5). ISCW Report No. GW A/2009/04. ARC-Institute for Soil, Climate and Water ...

The study area has an arid and semi-arid climate where various erosions have occurred in recent years, especially gully er osion; therefore, it is very important to study and evaluate this type of ...This is even more essential for the assessment of both expected future climate and land use changes. Only a few processes-based models such as DIMGUL/STABGUL ... A., et al., 2019. Modelling gully-erosion susceptibility in a semi-arid region, Iran: Investigation of applicability of certainty factor and maximum entropy models. Science of ...

322 kmh to mph The total gully and streambank areas, the lengths of stream networks, bank soil bulk densities, and erosion rates were all measured to calculate total soil losses via the stream bank and gully ...The area-specific gully erosion rate (gully erosion rate per unit area) from 1957 to 2005 of the gully networks in 12 study catchments was 16·2Mgha-1y-1, a finding in accord with results from ... biltmore regal asheville nclegacy arena birmingham parking Gully erosion, in the fringe areas of the Chotanagpur, is one of the important environmental issues from the perspective of agricultural sustainability, economic framework and land-resource management. The spatial gully erosion risk map (SGERM) can afford to identify the locales sensitive to gully erosion hazard. The present work intends toward modelling spatial gully erosion risk using the ... craigslist sandestin fl 🏜 List of countries with an arid climate Tatooine, Tunisia (© Greg Keelen on Unsplash) Home / Arid climate A region is arid when it is characterized by a severe lack of available water, to the extent of hindering or preventing the growth and development of plant and animal life. Environments subject to arid climates tend to lack vegetation ... idle miner tycoon gold minemegan henderson hotjennie o bids Abstract. The aim of the present review is to highlight the possibilities of a sustainable crop production in the arid Mediterranean region, which is predicted to suffer from increasingly severe droughts in the future due to climate changes, in addition to increased problems with soil salinity and increased temperatures. tcm december 2023 schedule usa printable Baseflow is a critical component of streamflow in arid areas. Determining variations in baseflow and the factors affecting it have positive roles for water resource utilization in arid watersheds. Two watersheds, the Hailiutu River watershed (HLTR) and the Dali River watershed (DLR), located in two different geomorphological regions of the middle Yellow River, were selected for this study. By ...In sites #2 and #3, gullies are mostly of linear pattern and elongated. The longest gully is located within site #3, whereas the deepest and widest gullies occur in site #2. The climate of the study area is semiarid with temperatures ranging from 7 °C to 30 °C and an annual rainfall of approximately 670 mm. lake havasu movies on swansonmaryland dir db radducktails car show 2023 Arid region water reservoirs have different characteristics and solutions from humid regions with the most water shortage in the world socio-economically. This paper outlines possible implementation methodologies, procedures and guidance for water storage in natural and artificial reservoirs for better operation and management rules …Download this page – Gully erosion (WORD - 111.7 KB) Gully erosion is the removal of soil along drainage lines by surface water runoff. Unless steps are taken to stabilise the disturbance, gullies will continue to move by headward erosion or by slumping of the side walls. It's far easier and more economical to do repair work in the early ...