Gully in arid climate - 2.1 Study area. The Dongzhiyuan plateau spans between 106°14′-108°42′E,34°50′-37°19′N, which corresponds to the southeastern edge of the Gansu Province, China (Fig. 1a), an arid and semi-arid zone. The topography of the study area is dominated by gully incised tablelands, on terrain that displays an elevation ranging …

 
The semi-arid hilly gully region of the Loess Plateau is located in northwestern China and has gullies and a fragmented topography. Because of the influences of the geographic environment, climate and excessive anthropogenic effects for thousands of years, this area has been one of the most vulnerable areas in China for a long time [1, 2].Therefore, to reduce soil erosion, restore vegetation .... Autozone warner robins

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 …As the climate became drier more in the east than in the west, and and cooler, Malan loess accumulated a decrease progressively from more rapidly by wind action, southeast to northwest (Fig. 2 ... It developed in four climates including mild desertic arid, cold desertic arid, cold semiarid and mild semiarid. Average annual rainfall was between 200 and 471 mm. The length of represented gullies were between 50 and 110 meters. The depth of the gullies was between 0.7 to 9.5 meters. Answers for gully in an arid climate crossword clue, 4 letters. Search for crossword clues found in the Daily Celebrity, NY Times, Daily Mirror, Telegraph and major publications. Find clues for gully in an arid climate or most any crossword answer or clues for crossword answers. 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 ... Gully is a crossword puzzle clue that we have spotted over 20 times. There are related clues (shown below). There are related clues (shown below). Referring crossword puzzle answers Overall, the highest gully densities occur in regions with some topography and a (semi-)arid climate. Nonetheless, it is important to point out that not all gully heads are still actively retreating. Building on earlier insights into the magnitude and controlling factors of gully head retreat rates, we explore what our current results imply for ...Nov 1, 2020 · The natural vegetation is defined as arid, sparsely distributed, except for localized linear features along the wadis (Smith et al., 2012), in soil patches (Mor-Mussery et al., 2014) and in unprocessed plots in the cultivated areas (Poesen, 2011). Most of the Western gully has a 'U' shape (Capra, 2013) with 5-45° slopes from the surrounding ... This research studies the effect of climate change on the hydrological behavior of two semi-arid basins. For this purpose, the Soil and Water Assessment Tool (SWAT) model was used with the simulation of two future climate change scenarios, one Representative Concentration Pathway moderate (RCP 4.5) and the other extreme (RCP 8.5). Three future periods were considered: close (2019-2040 ...Gully erosion as an acute geo-environmental issue in the semi-arid regions is culmination of some factors such as climate, lithology, soil properties, topography, the change of population as well ...The resulting high-resolution images (pixel sizes > 10 cm) are employed for photogrammetric and GIS analysis in order to quantify gully development with linear, areal and volumetric measurements at various sites in semi-arid landscapes of Spain and Africa.Linear headcut retreat rates for 12 gullies were analysed in order to investigate their ...Oct 31, 2005 · At each gully head, one or several headcuts, 1.5 to 4.5 m high, are incised into the valley floor, exposing the alluvium sequence down to a coarse conglomerate or to the bedrock. The gully heads divide the valleys in the region into two main segments: (a) The upper valley upstream of the gully head up to the headwater of the drainage basin. In ... The Chicago Climate Exchange is a voluntary carbon market to trade emissions. Learn about the Chicago Climate Exchange, or CCX, and find out how the market operates. Advertisement ...The province is characterized by a semi-arid Mediterranean climate in the north and arid in the south, with erratic rainfall that does not exceed 400 mm and an average monthly temperature of 9 °C in January and 37 °C in August (Benyahia et al., 2001). The population of the province has witnessed changes over the years of the study.Arroyo (watercourse) An arroyo ( / əˈrɔɪoʊ / ), from Spanish arroyo ( Spanish: [aˈroʝo], "brook"), also called a wash, is a dry watercourse that temporarily or seasonally fills and flows after sufficient rain. [1] Flash floods are common in arroyos following thunderstorms . Similar landforms are referred to as wadi (in North Africa and ...As moisture availability is generally the limiting factor for weathering in arid climates (e.g., ... Gully activity and fan formation, during periods of high obliquity [e.g., Dickson and Head ...Fostering Food Security and Climate Resilience Through Integrated Landscape Restoration Practices and Rainwater Harvesting/Management in Arid and Semi-arid Areas of Ethiopia. Chapter; First Online: 30 December 2017; pp 37-57; ... gully rehabilitation using check-dams and associated afforestation (biological measures) at the middle section of ...26 Apr 2018 ... The eastern parts of the Maguuma were characterised by arid tablelands, with lush gullies flowing through them: this sort of landscape can ...Results showed an upward trend in annual mean temperature for Enugu (0.02 0 C) and Umuahia (0.03 0 C). Similarly, Enugu is getting wetter by 5.84mm while Umuahia is increasing by 5.25mm per annum ...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 and practices. ... This river basin experiences a semi-arid monsoonal climate, with a mean maximum temperature of 43 °C in the summer and mean minimum temperature of 8 °C in the ...Gully erosion is the most severe type of water erosion and is a major land degradation process. Gully erosion susceptibility mapping (GESM)’s efficiency and interpretability remains a challenge, especially in complex terrain areas. ... This area belongs to the semi-arid climate zone; the average yearly precipitation total is 430 mm. …J Arid Land, 6(3): 273-286. Article Google Scholar Piao S, Friedlingstein P, Ciais P, de Noblet-Ducoudré N, Labat D, Zaehle S (2007). Changes in climate and land use have a larger direct impact than rising CO 2 on global river runoff trends. Proc Natl Acad Sci USA, 104(39): 15242-15247From a climate viewpoint, the research area is classified as a semi-arid continental zone, with a yearly average precipitation of approximately 181 mm, a maximum of 395 mm, and a minimum of 110 mm. Geomorphologically, the region consists of three geomorphological units: the high highlands, the piedmont, and El Haouz plain, with heights ranging ...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 ... We found 11 answers for the crossword clue Gully. A further 17 clues may be related. If you haven't solved the crossword clue Gully yet try to search our Crossword Dictionary by entering the letters you already know! (Enter a dot for each missing letters, e.g. “F.RR..” will find “FURROW”.) We found 11 answers for the crossword clue Gully. A further 17 clues may be related. If you haven't solved the crossword clue Gully yet try to search our Crossword Dictionary by entering the letters you already know! (Enter a dot for each missing letters, e.g. “F.RR..” will find “FURROW”.) In terms of climate, the mean annual temperature is about 22 °C, while the mean annual rainfall is about 750 mm. ... B. Evaluating the influence of geo-environmental factors on gully erosion in a semi-arid region of Iran: An integrated framework. Sci. Total Environ. 2017, 579, 913-927. [Google Scholar]A drier climate in the semi-arid zone is thus expected to foster rill and gully development (e.g., Valentin, 2004). Under cold conditions, global warming is expected to increase the frequency of freeze-thaw cycles exacerbating the risk of gullying as shown in southern Saskatchewan, Canada, ( Archibold et al., 2003 ) and in southern Norway ...The climate is a semi-humid continental climate with a long, cold winter. Temperatures in January and July average −20 and 21 °C, respectively (Meteorological Station of Heshan Farm, unpublished data: 1980-1996). ... Oostwoud Wijdenes DJ, Bryan R (2001) Gully-head erosion processes on a semi-arid valley floor in Kenya: a case study into ...Arid ClimatesAn arid climate is one that receives less than 10 inches (25.4 centimeters) of rainfall in an entire year. Deserts are areas that are arid. Although the most familiar image of a desert involves hot sand, the Arctic North and Antarctica are also deserts, as they also receive little moisture, usually in the form of snow. In contrast, the island of Fiji receives drenching rains for ...The Crossword Solver found 30 answers to "Supportive, encouraging (11)", 11 letters crossword clue. The Crossword Solver finds answers to classic crosswords and cryptic crossword puzzles. Enter the length or pattern for better results. Click the answer to find similar crossword clues . Was the Clue Answered? Alliance is moved to embrace right ...Climate and land-use change are the two main driving forces that affect watershed hydrological processes. Separately assessing their impacts on hydrology is important for land-use planning and water resource management. In this research, the SWAT (Soil and Water Assessment Tool) and statistical methods were applied to evaluate the effects of climate and land-use change on surface hydrology in ...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 ...Gully in north Africa that remains dry except during rainy season (4)Soil erosion is an important land degradation process and creates serious negative on-site and off-site effects on environment and societies [1,2,3,4,5,6,7].Typically, in semiarid regions, soil erosion is severe and largely irreversible [].A modelling approach is a common and useful way to project soil erosion under climate change [9,10].Various soil erosion models have been developed in ...Intense gully erosion is common land degradation scenario in semi-arid climate, plateau, and hillslopes areas due to the integrated impacts of variety of factors, like land use, topography, forest cover, and climate (Gayen et al. 2019).13 Feb 2020 ... Perhaps I should say, how NOT to Hugelkulture instead? As these are the lessons I've learned about Hugelkulture in arid climates.terracing. contour farming. conservation tillage. multiple cropping. 5 of 5. Quiz yourself with questions and answers for 5.02 Quiz: Soil as a Resource, so you can be ready for test day. Explore quizzes and practice tests created by teachers and students or create one from your course material.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. .Collapsing gully erosion developed upon granite residual soil is the most devastating form of soil erosion in southern China. However, despite extensive investigations of the controlling factors of gully erosion, including granite regolith properties (pedon scale), slope geometry and hydraulic conditions (watershed scale), and local climate (regional scale), little is known about the ...A similar conclusion was also drawn by Nunes and Seixas (2003) in a semi-arid Mediterranean watershed, Mohamadi and Kavian (2015) in two semi-humid ... Tarekegn (2012) attributed the severe gully erosion under a humid monsoon climate in Ethiopia to subsurface flow. Also, soil particles that are washed away by saturation …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 ...This method is useful in all types of region, both those with sparse vegetation (such as badlands in a semi-arid climate; e.g. Chilton et al., 2008; Zhu, 2003) ... Gully head retreat rates in the semi-arid highlands of Northern Ethiopia. Geomorphology, 173–174 (2012), ...A long-term assessment of land use and climate change on water scarcity in an arid basin in Iran identified that water yield and water supply are more strongly influenced by climate change than by land use change. By contrast, land use change provides a more significant impact on water consumption. However, while water scarcity in the Halil ...Proposing a novel predictive technique for gully erosion susceptibility mapping in arid and semi-arid regions (Iran). / Arabameri, Alireza; Cerda, Artemi; Rodrigo-Comino, Jesús et al. In: Remote Sensing, Vol. 11, No. 21, 2577, 01.11.2019. Research output: Contribution to journal › Article › peer-reviewWe would like to show you a description here but the site won’t allow us.The area is in a cool-temperate zone with a semi-arid climate. The climate is cold and dry in the winter and spring, and hot and rainy in the summer. ... Spatial variability of soil moisture content and its relation to environmental indices in a semi-arid gully catchment of the Loess Plateau, China. J. Arid Environ., 49 (4) (2001), pp. 723-750.Land degradation encompasses ecological, biological, and physical deterioration of land resulting from natural or anthropogenic factors, including soil erosion. Piping erosion, specifically in arid and semi-arid regions, is recognized as a significant cause of land degradation. Therefore, it is crucial to identify the influential factors and spatially model this phenomenon to effectively ...In arid climates, where water is scarce and temperatures can soar to extreme highs, mulching and providing shade for your vegetables are crucial practices for successful vegetable gardening. Mulching is a technique used to reduce water evaporation from the soil, maintain soil temperature, suppress weeds, and improve overall soil health.Nigeria experiences a diverse climate that ranges from arid in the north to tropical in much of the country and is listed among the countries most exposed to climate risks. The country faces a high water-scarcity hazard level, with droughts expected to occur on average every five years, with potential increased frequency due to climateThe Crossword Solver found 30 answers to "Gully", 3 letters crossword clue. The Crossword Solver finds answers to classic crosswords and cryptic crossword puzzles. Enter the length or pattern for better results. Click the answer to find similar crossword clues . Enter a Crossword Clue. A clue is required. Sort by Length. # of Letters or Pattern.Jun 1, 2022 · Introduction. Wide parts of the cultivated arid area over the globe are characterized by loamy soils. The combination of climate extremes, soil with high content of fine particles, a hilly topography, intense cultivations, and local farmers that are often unaware of soil conservation practices leads to enhanced soil erosion and incision phenomena (Catt, 2001, Sun et al., 2014). 23.3.3 Climate of Regions with Gully Erosion. Results of this survey indicated that 35% of the Iranian gullies are located in a semi-arid climate. Then, they are distributed in arid and Mediterranean climates with 22% and 16%, respectively (Fig. 23.7). These results with our field observations indicate two facts.Introduction. In the cold, nutrient-poor, and hyper-arid McMurdo Dry Valleys (MDV) of Antarctica, water availability serves as a primary factor governing the persistence and distribution of life (Kennedy, 1993).Climate, generally understood as long-term records of air temperature and precipitation, determines water availability on a regional scale, whereas …Under the simulated climate change scenario, the arid soil of PA exhibited a more pronounced response compared to the semiarid soil of SG. ... Increase in soil aggregate stability along a Mediterranean successional gradient in severely eroded gully bed ecosystems: combined effects of soil, root traits and plant community …For example, in Africa, about 67% of the continent has arid and semi-arid climate conditions , and surface water resources occur in limited areas. ... To minimize evaporation losses, therefore, a sand dam should ideally be in a well-defined gully or riverbed between steep rock banks. While in mountainous areas with very high gradients, it may ...On islands in arid climates, lake evaporation can reduce fresh water lenses more than coastal inundation; ... [Martin and Gulley, 2010; Gulley et al., 2014]. These lakes expose freshwater lenses to continuous evaporation with impacts that should depend on the balance of rainfall and evaporation ...Gully erosion is a serious threat to the society and environment of the study, primarily caused by surface runoff and dramatically accelerated due to rugged ...Gully erosion is an important cause of soil loss and land degradation in arid and semi-arid regions in Iran and elsewhere world 30, 31. Maps showing where this problem exists or might develop...The Loess Plateau is located in the middle Yellow River of China (Fig. 1) and is a typical arid and semi-arid area, where 85% of precipitation is consumed by ET (Feng et al., 2016).Since the kicking of Grain for Green Project (GFG) in 1999, the Loess Plateau has experienced substantial land use/cover changes, which are mainly characterized by large-scale conversion from cropland or sparse ...climate. Pollution. Which method of soil conservation relies on minimizing the use of plowing? terracing. contour farming. conservation tillage. multiple cropping. Conservation tillage. Study with Quizlet and memorize flashcards containing terms like What type of erosion consists of a thin, uniform layer of soil being eroded from a field? gully ...Climate change alters hydrological cycle processes such as snow cover, runoff, and soil water, which affect the ecosystem [].As the most critical component of the ecosystem, vegetation activities could well represent ecosystem variations [], and vegetation is highly sensitive to climate change [3,4,5], especially in arid ecosystems [].For example, dryland vegetation was observed as having a ... The Crossword Solver found 30 answers to "Gully", 3 letters crossword clue. The Crossword Solver finds answers to classic crosswords and cryptic crossword puzzles. Enter the length or pattern for better results. Click the answer to find similar crossword clues . Enter a Crossword Clue. A clue is required. Sort by Length. # of Letters or Pattern. Gulley Crossword Clue. The Crossword Solver found 30 answers to "Gulley", 5 letters crossword clue. The Crossword Solver finds answers to classic crosswords and cryptic crossword puzzles. Enter the length or pattern for better results. Click the answer to find similar crossword clues . Enter a Crossword Clue. A clue is required. Sort by Length.The total size of the farm is 227 ha comprising of 203 ha of rangeland and 24 ha of old arable land. The climate of the area is semiarid with an average annual rainfall of 545 mm. 2.2 Treatment. The gully where the conservation technique was implemented measured 240 m in length.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 ...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 ).Open-pit coal mine dumps in semi-arid areas in northern China are affected by serious soil erosion problems. The conventional field investigation method cannot ensure a fine spatial analysis of gully erosion. With recent technological and algorithmic developments in high-resolution terrain measurement, Unmanned Aerial Vehicles (UAVs) and Structure from Motion (SfM) technology have become ...May 1, 2022 · The here presented thermo-erosion gully inventory is valuable when regarded from a climate change perspective, as it can be utilised by scientists from various backgrounds, such as cryosphere research, geomorphology, statistical modelling of climate-induced geomorphological processes, hydrologists, cultural heritage planners, etc. Gully erosion covered over 600 square kilometers in the Golestan province. Although gully erosion was observed in 12 climates based on the modified Demartons' classification, most of the gullies occurred in arid and semiarid climates with loess soil. From six regions with extensive gully erosion, four have semiarid climate.A Novel Ensemble Artificial Intelligence Approach for Gully Erosion Mapping in a Semi-Arid Watershed (Iran) ... Iran. A total of 915 gully erosion locations along with 22 gully conditioning factors were used to construct a database. Some soft computing benchmark models (SCBM) including the ADTree, the Support Vector Machine by two kernel ...Clue: Desert gully. Desert gully is a crossword puzzle clue that we have spotted 9 times. There are related clues (shown below).Here is the solution for the Like a desert climate clue featured in USA Today puzzle on January 1, 2022. We have found 40 possible answers for this clue in our database. Among ... ARROYO Desert gully (6) Wall Street Journal: Mar 19, 2024 : 3% OASES Desert waterholes (5) 3% MESA Desert formation (4) Commuter: Mar 16, 2024 : …DOI: 10.1016/j.geomorph.2021.108027 Corpus ID: 244005227; Gully erosion and climate induced chemical weathering for vulnerability assessment in sub-tropical environment @article{Chakrabortty2021GullyEA, title={Gully erosion and climate induced chemical weathering for vulnerability assessment in sub-tropical environment}, author={Rabin Chakrabortty and Subodh Chandra Pal and M. Santosh and ...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. .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 damage to the surrounding environment, as well as agriculture productivity [ 30 , 31 ].Examines the processes operating in the headwaters and main channels of ephemeral rivers in semi-arid environments and includes coverage of current fieldwork investigations, modeling approaches, and management issues. focuses on dryland channel networks and processes presents a historical framework for research discusses examples of current studies and evaluates contemporary modelling ...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 ().

Oct 9, 2021 · 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. . Ideas to cover septic covers

gully in arid climate

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 integrated approach of Geographic Object-Based Image Analysis (GEOBIA) together with high-spatial ...Climate and land-use change are the two main driving forces that affect watershed hydrological processes. Separately assessing their impacts on hydrology is important for land-use planning and water resource management. In this research, the SWAT (Soil and Water Assessment Tool) and statistical methods were applied to evaluate the effects of climate and land-use change on surface hydrology in ...Studying the spatiotemporal variations in ecosystem services and their interrelationships on the Loess Plateau against the background of the gully control and land consolidation (GCLC) project has significant implications for ecological protection and quality development of the Yellow River Basin. Therefore, in this study, we took Yan'an City, Shaanxi Province of China, as the study area ...Sow seeds 6mm deep. Keep soil moist but never wet or dry. Seeds should germinate in around 7-14 days at a soil temperature of 18-22°C. Transplant seedlings to the garden once they have their first true leaves and are large enough to handle (usually 5-10cm tall). Plant out, spacing plants 30-50cm apart.Poesen et al. (2002) summarized the results of a number of studies concerning gully erosion in Mediterranean, semi-arid and arid environments and found that the contribution of gully erosion to ...MRJ, 0000-0002-6871-403X. ABSTRACT. The eastward shift of semi-arid climate across South Africa is studied using satellite assimila ted cloud cover, vegetation temperature and. potential ...8 Jan 2017 ... belongs to temperate sub-arid climate. Sandy land is widely distributed there. Gully erosion between dune and sand hill can easily formed by ...Gully erosion and climate induced chemical weathering for vulnerability assessment in sub-tropical environment. Author links open overlay panel Rabin Chakrabortty a, ... areas to gully erosion and the impact of land use change on it by using multiple-criteria decision-making algorithm in arid and semi-arid regions. Geoderma, Volume 403, 2021 ...Benefits of Raised Beds in Arid Regions. Garden articles advertise raised bed gardening. In zones with little moisture, the practice may also be helpful, especially if you have poor soil. Raised beds for hot regions can allow you to replace existing soil with fertile, well formulated soil. However, they will raise plants up to the hot sun and ...Gullies in semi-arid region are important in landscape modification, degradation and increased overland flow affecting geomorphic thresholds of an area.Along with the global climate change, gully erosion, flood and drought jointly restrict the sustainable development of arid rangeland in Central Asia. Rainwater harvesting (RWH) system in gully...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 and practices. ... This river basin experiences a semi-arid monsoonal climate, with a mean maximum temperature of 43 °C in the summer and mean minimum temperature of 8 °C in the ...Since desert biomes receive little precipitation per year, the conditions are very hostile for plants and animals. A desert biome is a collection of habitats that that develop in arid (dry) environments as a result of little rainfall (50cms per year) or no rainfall at all. Desert biomes are classified into four, with each having their own ...The gully domain is composed of various gullies that are generally connected to form a natural geographical unit (Liu & Li 2017). The gully domain covers approximately 40% of the total area with a density of 1.5–4.0 km·km −2 …Living in Colorado can be a dream come true for many, with its picturesque landscapes and vibrant culture. However, the state’s arid climate can wreak havoc on your hair color. The...Abstract. In the Tigray highlands, gully development is linked to poverty-driven unsustainable use of the land in a vulnerable semi-arid and mountainous environment, where intense rainfalls challenge the physical integrity of the landscape. Over the last two centuries, three major phases in the hydrological regime of the region could be ...Climate Variability and Land-Use Change in the Hilly-Gully Region of the Loess Plateau, China Youcai Kang 1,2,3, Jianen Gao 1,2,3,4,*, Hui Shao 5 and Yuanyuan Zhang 1,2,3 ... This region belongs to the north subtropical arid region, which has an average precipitation of 498 mm, and more than 58% of the rainfall is concentrated from July ...Gully erosion was, is, and will continue to be one of the world's most important environ-mental problems, especially in semiarid and arid areas, where soils are suffering from severe gully erosion ...Arroyo (watercourse) An arroyo ( / əˈrɔɪoʊ / ), from Spanish arroyo ( Spanish: [aˈroʝo], "brook"), also called a wash, is a dry watercourse that temporarily or seasonally fills and flows after sufficient rain. [1] Flash floods are common in arroyos following thunderstorms . Similar landforms are referred to as wadi (in North Africa and ....

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