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This study was performed in the Zhifanggou watershed (area 8.27 km 2, elevation 1010-1431 m a.s.l) of Ansai county, Shannxi province, locates in the central part of the Loess Plateau and belongs to the typical hilly and gully region (Fig. 1).The watershed features a typical arid and semi-arid continental monsoon climate with a mean annual precipitation of 505 mm and a mean annual air ...Climate models predict that the temperature in arid Central Asia will increase by 1-2 °C by 2030-2050, with the greatest increase in winter. Precipitation projections vary from one model to another and projected changes in the aridity index for different model runs show no consistent trend for this region ( Fig. 4 ).alluvial aquifers in arid regions may be affected by climate change during the 2 1st century. Yemen, with its capital Sana'a (see Figure 1 ), is currently home to about 23 million people. The ...The gully has been previously defined as a valley bottom gully (Gutiérrez et al., 2009) and constitutes a discontinuous second-order stream composed of the main channel and a tributary, with a length of 832 m and 163 m, respectively (Fig. 1 c). The channel is situated in the lower part of the watershed and is incised into the alluvial sediment ...Despite the importance of soil erosion in sustainable development goals in arid and semi-arid areas, the study of the geo-environmental conditions and factors influencing gully erosion occurrence is rarely undertaken. As effort to this challenge, the main objective of this study is to apply an integ …This area is characterized by an arid climate and intensive agricultural utilization on loess soil, enhancing gully erosion and the formation of gullied landforms. ... Particularly in arid and semi-arid areas, gully erosion is widely developed where vegetation is relatively scarce; therefore, protecting the soil surface against detachment by ...Section snippets Study site. The research was conducted in the arid central Negev desert (Fig. 1). The rainy season in this area extends from November through April and mean annual precipitation for the northern Negev Highlands near Sede Boqer is 91 mm (Bitan and Rubin, 1991).However, the inter- and intra-annual variation in rainfall is very high (Avni, 2005, Bitan and Rubin, 1991).Gully-head has been observed in a wide range of continuous and categorical conditioning factors in different countries. This study aimed to examine the association of gully-heads with the most effective hydrologic factors via univariate and bivariate analyses in the standard mode. A 2700 ha area in the loess-covered region of Iran was selected and the point map of 287 gully-heads prepared by ...In cities with an arid climate, during the daytime, the presence of LST is mainly related to the presence of bare land [65,66,67]. For example, in Marrakesh, the Airport Zone and Sidi Ghanem districts are considered as the hottest districts of Marrakesh, at 35.30 °C and 34.68 °C, respectively.The combination of loess soil, an arid climate and intensive and continuous cultivation may promote incision and gully erosion. Whereas most studies focus on geomorphological aspects of gully ...trend of gully erosion occurred due to inappropriate land management, non-standard cultivation, and severe and fast land use changes [23]. The main prerequisite for dealing with various types of erosion, especially gully erosion, is the prediction of the risk of gully formation in di erent areas that are prone to this type of erosion [24].We study in this paper land degradation processes in arid environments that are leading to a major environmental change. These processes, which are mostly the outcome of gully development, have direct impact on agriculture potential, biomass degradation, and escalating desertification. Three representative sites within the Negev Highland ...9 Jan 2020 ... In addition, the soil properties and steep slope (gravity) of the land have contributed in exacerbating the problems. Gully erosion caused ...Therefore, the annual average growth rate of the gully length, width, and depth of the two watersheds are 21m/year, .275m/year and 0.28 m/year respectively. According to (ul Rasool et al. 2011 ...Very Severe: (1) Less than 10 percent of plant community consists of climax species, or (2) land has many sand dunes or deep gullies, or (3) salt crusts have ...The clue "Dry gully" provides us with a key descriptive word - "dry". This implies that the answer we are looking for is a type of gully that is specifically dry. This narrows down the possibilities. The answer "ARROYO" is a Spanish word that translates to "dry gully" in English. It perfectly matches the clue, indicating that it is indeed the ...This area belongs to the semi-arid climate zone; the average yearly precipitation total is 430 mm. The soil type is loess, and the soil particles are mainly silt particles that are easy to erode. The land use in the watershed is mainly grassland and cultivated land. There is still some sloping farmland distributed scattered in this watershed.Gully erosion is defined as the erosion process whereby runoff water accumulates and often recurs in narrow channels and, over short periods, removes the soil from this narrow area to considerable depths.Permanent gullies (e.g. Fig. 2) are often defined for agricultural land in terms of channels too deep to easily ameliorate with ordinary farm tillage equipment, typically ranging from 0.5 to ...Gully incision is a well-known phenomenon developing in loess soils and alluvial sediments in the entire desert region of southern Israel, as well as in other desert regions in the Middle East ...The climate of the area is semi-arid with pronounced seasonaIn spite of many research efforts on gully erosion, there Semantic Scholar extracted view of "Contributions of climate change and vegetation greening to evapotranspiration trend in a typical hilly-gully basin on the Loess Plateau, China." ... Impacts of climate and vegetation on actual evapotranspiration in typical arid mountainous regions using a Budyko-based framework. Yu Yuanhui Yuyan Zhou +5 ...applied in all areas. Meanwhile, the e ects and levels of gully erosion in each region are di erent [43]. In the present study, gully erosion in the Markazi province (Iran), which has an arid and semi-arid climate, was investigated and predicted. Gullies often occur in this area and cause very extensive Jun 1, 2022 · The climate is arid with rai gully erosion. rill erosion. rain erosion. ... climate. 4 of 5. ... serious reduction in the productivity potential of soil in an arid or semiarid location. 2. Materials and methods2.1.. Study siteThe rese

The concept of gully erosion susceptibility has received more focus in recent years, and the attention has been drown by researchers for the implementation of policy …The badland area is located in the Spanish Central System, Province of Segovia (41° 9′ 30′′N; 3° 48′ 30′′ W) at an elevation of 1065 m ( Fig. 1 ). Analyses were performed in a ...Particularly in arid and semi-arid areas, gully erosion is widely developed where vegetation is relatively scarce; therefore, protecting the soil surface against detachment by high-intensity ...Rapid change of climate in vertical and considerable geomorphologic features form a typical diversity and distribution of biota in mountain ecosystems, i.e., the subalpine forest zone (SFZ), the valley savanna zone (VSZ), and the transition zone between them. The arid hot valley in the middle and lower reaches of Jinsha River, China represents a well target area to study distribution and the ...Soil loss due to gully erosion is highly sensitive to climate change, and gully head retreat rates, as projected, may increase with 27 to 300% when the precipitation intensities increase [36,37 ...

1. Introduction. Gully erosion causes in-site and downstream environmental degradation. Human activities in arid and semi-arid areas accelerate gully occurrence that alters Earth's landscapes and affects human-environmental sustainability (Lesschen et al., 2007, Garosi et al., 2018).Usually gully erosion is known as anthropogenic alteration of landscapes, resulting in a serious threat to ...Studying the isotope characteristics and water body transformation relationships among different water bodies in the hilly and gully region of the Loess Plateau can provide a theoretical foundation for evaluating regional climate, ecology, and water resources. In this study, daily and monthly averag …We study in this paper land degradation processes in arid environments that are leading to a major environmental change. These processes, which are mostly the outcome of gully development, have direct impact on agriculture potential, biomass degradation, and escalating desertification.Three representative sites within the Negev Highland, Israel, are studied by utilizing terrestrial laser scans ...…

Reader Q&A - also see RECOMMENDED ARTICLES & FAQs. Fostering Food Security and Climate Resilience Thr. Possible cause: This area belongs to the semi-arid climate zone; the average yearly precipita.