Sun, T. J.

Teng, W. J.

Wu, J. Y.

English

University of Kentucky

University of Kentucky UKnowledge International Grassland Congress Proceedings 21st International Grassland Congress / 8th International Rangeland Congress Effect of Artificial Grassland on Soil and Water Conservation in Beijing T. J. Sun Beijing Academy of Agriculture and Forestry Sciences, China J. Y. Wu Beijing Academy of Agriculture and Forestry Sciences, China W. J. Teng Beijing Academy of Agriculture and Forestry Sciences, 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/21/7-1/27 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 ]844　 瞯 　 Multifunctional Grasslands in a Changing World 　 Volume Ⅰ 　Grasslands/Rangelands Resources and Ecology ———Water Resources in Grasslands/RangelandsEffect of artificial grassland on soil and water conservation in BeijingT .J .SUN , J .Y .WU , W .J .TENGBei j ing Research & Development Center o f G rass and Env ironment ,Bei j ing A cademy o f A griculture and Forestry Sciences ,Banj ing ,H aidian District ,Bei j ing 100097 ,China , E‐mail : st j ＿ cau＠ 163 .com / g j hy ＿ sun＠ 126 .comKey words : barren lands , meadow brome , artificial grassland , soil and water conservation , BeijingIntroduction There are severe soil erosion and water loss problems that are exacerbated by livestock production around Beijing .Drought‐resistant and barren‐tolerant perennial grass is a good forage that promotes soil and water conservation ( Adekalu etal . , ２００７) .The main objective of this study was to reduce soil erosion and water loss on barren lands in Beijing by plantingperennial grass in different areas .Materials and methods The experiment was conducted with in Yanqing , Miyun , and Changping in Beijing .Their soil texturalclassifications were sandy loam , sand clay loam and clay loam .Rainfalls were ３９３ .５mm , ５７９ .７mm and ６１３畅７mm .T reatmentswere imposed in a randomized complete block design with three replicates .There were one CK ( control) that was a barren slopeand one treatment that was artificial grassland sowed in autumn with meadow brome ( Bromus riparius ) in one experimentalarea .Surface runoff and soil erosion was observed on plots in ２００６ , and grass height , cover and biomass of artificial grasslandwere measured with three replicates in the August .Results and discussion Ground covers and biomasses of artificial grasslands in Miyun and Changping were over ９７％ and ５３２１kg /hm２ , and higher ( p ＜ ０畅０１) than those in Yanqing .This was due mainly to rainfall and soil textural classification ( Table １ ) .Meanwhile , soil erosion and water loss of artificial grassland was lower significantly ( p ＜ ０ .０１ ) than that in CK in everyexperiment area .Amounts of surface runoff and soil erosion of artificial grasslands were only ３０９０ .３ t / km２ and ２ .６ t / km２ inChangping in ２００６ , and the effect of soil and water conservation was highest there , ９８ .２２％ and ９９ .９９％ .This site had clayloam soil and high ground cover of grassland ( Table ２ ) .Table 1 A rti f icial grassland background o f three areas in Bei j ing in 2006 .Areas Overg round biomass( kg / hm２ ) Ground cover ( ％ ) Grass height ( cm )Yanqing ４８６７ 创.７b ８５ d.３b ３６ A.２aMiyun ５５６９ 贩.３a ９７ g.７a ３８ A.７aChangping ５３２１ 贩.９a ９７ g.９a ３９ A.９aNote : Different letters of each column in an area are significant differences at ０ .０１ level ( p ＜ ０ .０１ ) .倡 AG indicated artificial grassland .Table 2 Yearly amount o f sur f ace runo f f and soil erosion o f three areas in Bei j ing in 2006 .Areas T reat‐mentsamount ofsurface runoff( t / km２ )Soilerosion( t / km２ )w aterconservation( ％ )soilconservation( ％ )Yanqing CK ４４３３１ 9.９a ７４２３ 谮.６a — —AG 倡 １４２３３ 6.２b ５７ �.８b ６７  .８９ ９９ 蜒.２２Miyun CK １８２９７９ M.５a ３５９１ 谮.１a — —AG １４１１０ 6.３b ８ 櫃.１b ９２  .２９ ９９ 蜒.７７Changping CK １７３９０９ M.９a ２５８０６ 铑.７a — —AG ３０９０ !.３b ２ 櫃.６b ９８  .２２ ９９ 蜒.９９Conclusions Surface runoff and soil erosion in barren fields was decreased effectively by planting drought‐resistant and barren‐tolerant perennial grass .Ground biomass and cover increased , and vegetation restored rapidly after grass planting . Thisbenefited livestock and had positive effects on soil and water conservation in Beijing .ReferenceAdekalu K .O . , Olorunfemi L .A . , Osunbitan J .A . , ２００７ .Grass mulching effect on infiltration , surface runoff and soil loss ofthree agricultural soils in Nigeria . Bioresource Technology ９８ : ９１２‐９１７ .

Effect of Artificial Grassland on Soil and Water Conservation in Beijing

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Effect of Artificial Grassland on Soil and Water Conservation in Beijing

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