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Sheet erosion rates and erosion control on steep rangelands in loess regions
Numerous steep rangelands have been restored from abandoned steep croplands, and sheet erosion has become the dominant erosion process on rangelands since the Grain‐to‐Green Project was launched in 1999 on the Loess Plateau. Quantifying sheet erosion rates and dynamics on steep rangelands may aid so...
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Published in: | Earth surface processes and landforms 2018-11, Vol.43 (14), p.2926-2934 |
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description | Numerous steep rangelands have been restored from abandoned steep croplands, and sheet erosion has become the dominant erosion process on rangelands since the Grain‐to‐Green Project was launched in 1999 on the Loess Plateau. Quantifying sheet erosion rates and dynamics on steep rangelands may aid soil erosion management strategies and improve grassland health. Simulated rainfall experiments were conducted on a rangeland plot under five vegetation coverages (30%, 40%, 50%, 60% and 70%), five rainfall intensities (0.7, 1.0, 1.5, 2.0 and 2.5 mm min‐1) and five slopes (7°, 10°, 15°, 20° and 25°). The results show that the sheet erosion rate decreased as vegetation cover increased, as described by linear or logarithmic equations under different rainfall intensities or slopes. Herbaceous vegetation can reduce and control sheet erosion by reducing the effect of rainfall intensity or slope, especially under sufficiently high vegetation cover. The sheet erosion rate was accurately modelled by a linear equation that included the three factors, i.e. rainfall intensity, vegetation cover, and slope. Among the different hydrodynamic parameters (shear stress, stream power, unit stream power and unit energy), stream power resulted in the best model for the sheet erosion rate. Velocity measurements and calculations, water depth calculations, and aggregative indicators of herbaceous vegetation for sheet flow should be explored in future research, which will be important in improving experimental accuracy and sheet erosion modelling. © 2018 John Wiley & Sons, Ltd.
Sheet erosion rate decreased as vegetation cover increased, as described by linear or logarithmic equations under different rainfall intensities or slopes. Sheet erosion rate was accurately modelled by a linear equation that included rainfall intensity, vegetation cover and slope. Stream power resulted in the best model for the sheet erosion rate. |
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Sheet erosion rate decreased as vegetation cover increased, as described by linear or logarithmic equations under different rainfall intensities or slopes. Sheet erosion rate was accurately modelled by a linear equation that included rainfall intensity, vegetation cover and slope. Stream power resulted in the best model for the sheet erosion rate.</description><identifier>ISSN: 0197-9337</identifier><identifier>EISSN: 1096-9837</identifier><identifier>DOI: 10.1002/esp.4460</identifier><language>eng</language><publisher>Bognor Regis: Wiley Subscription Services, Inc</publisher><subject>Agricultural land ; Computer simulation ; Dynamics ; Erosion control ; Erosion mechanisms ; Erosion models ; Erosion processes ; Erosion rates ; Grain ; Grassland management ; Grasslands ; hydraulic parameters ; Hydrodynamics ; Laminar flow ; Linear equations ; Loess ; loess region ; Mathematical models ; Model accuracy ; Modelling ; Plant cover ; Rain ; Rainfall ; Rainfall intensity ; Rainfall simulators ; Range management ; Rangelands ; Rivers ; Shear stress ; Sheet erosion ; sheet erosion rate ; Simulated rainfall ; Slope ; Slopes ; Soil ; Soil dynamics ; Soil erosion ; Soil improvement ; Soil management ; steep rangelands ; Vegetation ; Vegetation cover ; Water depth</subject><ispartof>Earth surface processes and landforms, 2018-11, Vol.43 (14), p.2926-2934</ispartof><rights>2018 John Wiley & Sons, Ltd.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a3160-586a5ec9e25fa27522570045db11415d8cf0b4ffb5378e757cb9c81e8ba70a123</citedby><cites>FETCH-LOGICAL-a3160-586a5ec9e25fa27522570045db11415d8cf0b4ffb5378e757cb9c81e8ba70a123</cites><orcidid>0000-0002-4656-0607 ; 0000-0002-4779-3234</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Wang, Dongdong</creatorcontrib><creatorcontrib>Wang, Zhanli</creatorcontrib><creatorcontrib>Zhang, Qingwei</creatorcontrib><creatorcontrib>Zhang, Qilin</creatorcontrib><creatorcontrib>Tian, Naling</creatorcontrib><creatorcontrib>Liu, Jun'e</creatorcontrib><title>Sheet erosion rates and erosion control on steep rangelands in loess regions</title><title>Earth surface processes and landforms</title><description>Numerous steep rangelands have been restored from abandoned steep croplands, and sheet erosion has become the dominant erosion process on rangelands since the Grain‐to‐Green Project was launched in 1999 on the Loess Plateau. Quantifying sheet erosion rates and dynamics on steep rangelands may aid soil erosion management strategies and improve grassland health. Simulated rainfall experiments were conducted on a rangeland plot under five vegetation coverages (30%, 40%, 50%, 60% and 70%), five rainfall intensities (0.7, 1.0, 1.5, 2.0 and 2.5 mm min‐1) and five slopes (7°, 10°, 15°, 20° and 25°). The results show that the sheet erosion rate decreased as vegetation cover increased, as described by linear or logarithmic equations under different rainfall intensities or slopes. Herbaceous vegetation can reduce and control sheet erosion by reducing the effect of rainfall intensity or slope, especially under sufficiently high vegetation cover. The sheet erosion rate was accurately modelled by a linear equation that included the three factors, i.e. rainfall intensity, vegetation cover, and slope. Among the different hydrodynamic parameters (shear stress, stream power, unit stream power and unit energy), stream power resulted in the best model for the sheet erosion rate. Velocity measurements and calculations, water depth calculations, and aggregative indicators of herbaceous vegetation for sheet flow should be explored in future research, which will be important in improving experimental accuracy and sheet erosion modelling. © 2018 John Wiley & Sons, Ltd.
Sheet erosion rate decreased as vegetation cover increased, as described by linear or logarithmic equations under different rainfall intensities or slopes. Sheet erosion rate was accurately modelled by a linear equation that included rainfall intensity, vegetation cover and slope. Stream power resulted in the best model for the sheet erosion rate.</description><subject>Agricultural land</subject><subject>Computer simulation</subject><subject>Dynamics</subject><subject>Erosion control</subject><subject>Erosion mechanisms</subject><subject>Erosion models</subject><subject>Erosion processes</subject><subject>Erosion rates</subject><subject>Grain</subject><subject>Grassland management</subject><subject>Grasslands</subject><subject>hydraulic parameters</subject><subject>Hydrodynamics</subject><subject>Laminar flow</subject><subject>Linear equations</subject><subject>Loess</subject><subject>loess region</subject><subject>Mathematical models</subject><subject>Model accuracy</subject><subject>Modelling</subject><subject>Plant cover</subject><subject>Rain</subject><subject>Rainfall</subject><subject>Rainfall intensity</subject><subject>Rainfall simulators</subject><subject>Range management</subject><subject>Rangelands</subject><subject>Rivers</subject><subject>Shear stress</subject><subject>Sheet erosion</subject><subject>sheet erosion rate</subject><subject>Simulated rainfall</subject><subject>Slope</subject><subject>Slopes</subject><subject>Soil</subject><subject>Soil dynamics</subject><subject>Soil erosion</subject><subject>Soil improvement</subject><subject>Soil management</subject><subject>steep rangelands</subject><subject>Vegetation</subject><subject>Vegetation cover</subject><subject>Water depth</subject><issn>0197-9337</issn><issn>1096-9837</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><recordid>eNp10M9LwzAUB_AgCs4p-CcEvHjpfEmaJjnKmFMYKEzPIW1fZ0dtatIh--_NnHjzlEf48H58CblmMGMA_A7jMMvzAk7IhIEpMqOFOiUTYEZlRgh1Ti5i3AIwlmszIav1O-JIMfjY-p4GN2Kkrq__firfj8F3NJVxRBwS6TfYJRJp29POY4w04CbZeEnOGtdFvPp9p-TtYfE6f8xWz8un-f0qc4IVkEldOImVQS4bx5XkXCqAXNZlWorJWlcNlHnTlFIojUqqqjSVZqhLp8AxLqbk5th3CP5zh3G0W78LfRppOeMm1wyUSOr2qKp0SgzY2CG0Hy7sLQN7yMqmrOwhq0SzI_1qO9z_6-xi_fLjvwHqTGos</recordid><startdate>201811</startdate><enddate>201811</enddate><creator>Wang, Dongdong</creator><creator>Wang, Zhanli</creator><creator>Zhang, Qingwei</creator><creator>Zhang, Qilin</creator><creator>Tian, Naling</creator><creator>Liu, Jun'e</creator><general>Wiley Subscription Services, Inc</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7TG</scope><scope>7UA</scope><scope>8FD</scope><scope>C1K</scope><scope>F1W</scope><scope>FR3</scope><scope>H96</scope><scope>KL.</scope><scope>KR7</scope><scope>L.G</scope><orcidid>https://orcid.org/0000-0002-4656-0607</orcidid><orcidid>https://orcid.org/0000-0002-4779-3234</orcidid></search><sort><creationdate>201811</creationdate><title>Sheet erosion rates and erosion control on steep rangelands in loess regions</title><author>Wang, Dongdong ; Wang, Zhanli ; Zhang, Qingwei ; Zhang, Qilin ; Tian, Naling ; Liu, Jun'e</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a3160-586a5ec9e25fa27522570045db11415d8cf0b4ffb5378e757cb9c81e8ba70a123</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Agricultural land</topic><topic>Computer simulation</topic><topic>Dynamics</topic><topic>Erosion control</topic><topic>Erosion mechanisms</topic><topic>Erosion models</topic><topic>Erosion processes</topic><topic>Erosion rates</topic><topic>Grain</topic><topic>Grassland management</topic><topic>Grasslands</topic><topic>hydraulic parameters</topic><topic>Hydrodynamics</topic><topic>Laminar flow</topic><topic>Linear equations</topic><topic>Loess</topic><topic>loess region</topic><topic>Mathematical models</topic><topic>Model accuracy</topic><topic>Modelling</topic><topic>Plant cover</topic><topic>Rain</topic><topic>Rainfall</topic><topic>Rainfall intensity</topic><topic>Rainfall simulators</topic><topic>Range management</topic><topic>Rangelands</topic><topic>Rivers</topic><topic>Shear stress</topic><topic>Sheet erosion</topic><topic>sheet erosion rate</topic><topic>Simulated rainfall</topic><topic>Slope</topic><topic>Slopes</topic><topic>Soil</topic><topic>Soil dynamics</topic><topic>Soil erosion</topic><topic>Soil improvement</topic><topic>Soil management</topic><topic>steep rangelands</topic><topic>Vegetation</topic><topic>Vegetation cover</topic><topic>Water depth</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Wang, Dongdong</creatorcontrib><creatorcontrib>Wang, Zhanli</creatorcontrib><creatorcontrib>Zhang, Qingwei</creatorcontrib><creatorcontrib>Zhang, Qilin</creatorcontrib><creatorcontrib>Tian, Naling</creatorcontrib><creatorcontrib>Liu, Jun'e</creatorcontrib><collection>CrossRef</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Water Resources Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Engineering Research Database</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>Civil Engineering Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><jtitle>Earth surface processes and landforms</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Wang, Dongdong</au><au>Wang, Zhanli</au><au>Zhang, Qingwei</au><au>Zhang, Qilin</au><au>Tian, Naling</au><au>Liu, Jun'e</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Sheet erosion rates and erosion control on steep rangelands in loess regions</atitle><jtitle>Earth surface processes and landforms</jtitle><date>2018-11</date><risdate>2018</risdate><volume>43</volume><issue>14</issue><spage>2926</spage><epage>2934</epage><pages>2926-2934</pages><issn>0197-9337</issn><eissn>1096-9837</eissn><abstract>Numerous steep rangelands have been restored from abandoned steep croplands, and sheet erosion has become the dominant erosion process on rangelands since the Grain‐to‐Green Project was launched in 1999 on the Loess Plateau. Quantifying sheet erosion rates and dynamics on steep rangelands may aid soil erosion management strategies and improve grassland health. Simulated rainfall experiments were conducted on a rangeland plot under five vegetation coverages (30%, 40%, 50%, 60% and 70%), five rainfall intensities (0.7, 1.0, 1.5, 2.0 and 2.5 mm min‐1) and five slopes (7°, 10°, 15°, 20° and 25°). The results show that the sheet erosion rate decreased as vegetation cover increased, as described by linear or logarithmic equations under different rainfall intensities or slopes. Herbaceous vegetation can reduce and control sheet erosion by reducing the effect of rainfall intensity or slope, especially under sufficiently high vegetation cover. The sheet erosion rate was accurately modelled by a linear equation that included the three factors, i.e. rainfall intensity, vegetation cover, and slope. Among the different hydrodynamic parameters (shear stress, stream power, unit stream power and unit energy), stream power resulted in the best model for the sheet erosion rate. Velocity measurements and calculations, water depth calculations, and aggregative indicators of herbaceous vegetation for sheet flow should be explored in future research, which will be important in improving experimental accuracy and sheet erosion modelling. © 2018 John Wiley & Sons, Ltd.
Sheet erosion rate decreased as vegetation cover increased, as described by linear or logarithmic equations under different rainfall intensities or slopes. Sheet erosion rate was accurately modelled by a linear equation that included rainfall intensity, vegetation cover and slope. Stream power resulted in the best model for the sheet erosion rate.</abstract><cop>Bognor Regis</cop><pub>Wiley Subscription Services, Inc</pub><doi>10.1002/esp.4460</doi><tpages>9</tpages><orcidid>https://orcid.org/0000-0002-4656-0607</orcidid><orcidid>https://orcid.org/0000-0002-4779-3234</orcidid></addata></record> |
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subjects | Agricultural land Computer simulation Dynamics Erosion control Erosion mechanisms Erosion models Erosion processes Erosion rates Grain Grassland management Grasslands hydraulic parameters Hydrodynamics Laminar flow Linear equations Loess loess region Mathematical models Model accuracy Modelling Plant cover Rain Rainfall Rainfall intensity Rainfall simulators Range management Rangelands Rivers Shear stress Sheet erosion sheet erosion rate Simulated rainfall Slope Slopes Soil Soil dynamics Soil erosion Soil improvement Soil management steep rangelands Vegetation Vegetation cover Water depth |
title | Sheet erosion rates and erosion control on steep rangelands in loess regions |
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