Gao, Yong

Meng, Zhongju

Sun, Tiejun

Wu, Junying

English

University of Kentucky

University of Kentucky UKnowledge International Grassland Congress Proceedings 21st International Grassland Congress / 8th International Rangeland Congress Study of Meadow Brome Planting on Soil and Water Conservation Zhongju Meng Inner Mongolia Agricultural University, China Tiejun Sun Beijing Research and Development Center for Grass and Environment, China Yong Gao Inner Mongolia Agricultural University, China Junying Wu Beijing Research and Development Center for Grass and Environment, China Follow this and additional works at: https://uknowledge.uky.edu/igc  Part of the Plant Sciences Commons, and the Soil Science Commons This document is available at https://uknowledge.uky.edu/igc/21/7-1/19 The 21st International Grassland Congress / 8th International Rangeland Congress took place in Hohhot, China from June 29 through July 5, 2008. Proceedings edited by Organizing Committee of 2008 IGC/IRC Conference Published by Guangdong People's Publishing House This Event is brought to you for free and open access by the Plant and Soil Sciences at UKnowledge. It has been accepted for inclusion in International Grassland Congress Proceedings by an authorized administrator of UKnowledge. For more information, please contact UKnowledge@lsv.uky.edu. 瞯 ]836　 瞯 　 Multifunctional Grasslands in a Changing World 　 Volume Ⅰ 　Grasslands/Rangelands Resources and Ecology ———Water Resources in Grasslands/RangelandsStudy of meadow brome planting on soil and water conservationMeng Zhong j u1 , Sun T ie j un2 , Gao Yong1 , W u Junying21 College o f Ecol .and Env .Sci , Inner Mongolia A gric .Univ . , hohhot 010019 .2 Bei j ing Research and Development centerf or G rass and Env ironment ,E‐mail : mengz hong j u＠ 126 .comKeywords :meadow brome , slope , soil erosion modulus , surface runoff , soil and water conservationIntroduction China has one of the most serious soil erosion problems in the world .At present , vegetation is the most effectivefactor preventing soil erosion ( Cerda １９９９ ) .Grass coverage on slopes is key ( Wang Pingqing ,２００５ ) .Therefore , with bromegrass as test material , a runoff experimental plot was built on ２５ ° slope land in Yanqing county , and the effect and mechanismof brome grass on soil and water conservation was studied .This work verifies scientific theory and demonstrates technicalsolutions for effective control of soil erosion and rational use of grasses in northern China .Materials and methods Test materials were brome grass ( Bromus rip arius ) which came from Canada .Runoff experimental plotswere built on ２５° slopes .There were two treatments with Brome‐growing areas and bare areas ( CK ) , and three replications ,totalling six runoff plots in the same slope .The test field was oriented north to south , and the area of each runoff plots was ２m× ３m .The plots were separated by asphalt felt paper , buried underground ３０ cm , above the ground ２０ cm , then we set gulliesand an outlet pond at the base and sewed grass seed on May １８ , ２００６ along contour lines , spaced １５ cm .After each rain , wemeasured the depth of the barrels and calculated the total runoff volume of the slope , then took sampling by whole profilesampler , af ter filtering , dried the sediment in １ ‐２BS‐electric under １０５ ℃ until the weight was constant .Results The surface runoff and soil erosion modulus were important indicators of the slope erosion strength .The test results of２５° slope runoff experimental plot in Yanqing in ２００６ showed that ( Table １ ) , the effect of lawn Brome planting for erosioncontrol was significant , the surface runoff and soil erosion modulus of CK were ４４３３１ .８７ m３ / km２ .a and ７４２３ .５６ t / km２ .a .Therunoff and soil erosion modulus of Brome grass covered were less than the CK , only １４２３３ .１９m３ / km２ .a and ５７ .８２ t / km２ .a .Table 1 The runo f f and soil erosion modulus o f di f f erent treatments .t reatment surface runoffm３ / km２ <.asoil erosion modulus( t / km２ 妸.a)capability of w aterconservation( ％ )Capability of soilconservation( ％ )CK ４４３３１ 铑.８７a ７４２３ 1.５６a ‐ ‐Bromus ri p arius １４２３３ 铑.１９b ５７ 哌.８２b ６７ 5.８ ９９ 破.３Note : different letters in same row mean significantly under ０ .０５ levelConclusions Brome grass planting played an important part in soil erosion control on ２５° slope land in Yanqing .The runoff andsoil erosion modulus of Brome grass planting area were １４２３３ .１９ m３ / km２ .a and ５７ .８２ t / km２ .a respectively .The capabilities ofwater and soil conservation were ６７ .８％ and ９９ .３％ .ReferencesCerda A .Parent material and vegetation affect soil erosion in eastern Spain[ J ] .Soil Sci Soc Am １ J .１９９９ , ６３ : ３６２ .Wang Pingqing , Study of Pennisetum pureum on Function of soil and water conservation [ J ] . Journal o f Soil and W aterConserv ation .２００５ , １９ (１) : １１４‐１１６ .

Study of Meadow Brome Planting on Soil and Water Conservation

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Study of Meadow Brome Planting on Soil and Water Conservation

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