Liu, Hongmei

Wei, Zhijun

Yan, Ruirui

Yun, Xiangjun

English

University of Kentucky

University of Kentucky UKnowledge International Grassland Congress Proceedings 21st International Grassland Congress / 8th International Rangeland Congress Response of Arid Grassland Community Standing Crop to Banning Grazing and Deferral Grazing Management Zhijun Wei Inner Mongolia Agriculture University, China Ruirui Yan Inner Mongolia Agriculture University, China Hongmei Liu Inner Mongolia Agriculture University, China Xiangjun Yun Inner Mongolia Agriculture University, 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/21/9-3/24 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. 　 Multifunctional Grasslands in a Changing World 　 Volume Ⅱ 　 瞯 ]141　 瞯Grasslands/Rangelands Production Systems——— Livestock Production SystemsResponse of arid grassland community standing crop to banning grazing and deferral grazingmanagementWei Zhij un ,Y an Ruirui ,L iu Hongmei ,Y un X iang j unCollege o f Ecol . and Env . Sci . , Inner Mongolia A gric . Univ . ,Hohhot , Inner Mongolia 010019 P .R . .China . E‐mail :nmndw z j＠ 163 .comKey word : gesert steppe ,community ,standing crop ,banning grazing ,deferral grazing ;Introduction Spring deferral grazing is a grazing strategy that can avoid grassland damage from livestock grazing and tramplingduring the sensitive grasses‐turning‐green period . The strategy can effectively improve grassland ecological environment ( Li etal . ,２００１ ; Zhao et al . ,２００３ ; Li ,２００５ ) . The study was conducted in two grazing systems of banning grazing and deferralgrazing in Stip a brev i f lora desert steppe . Evaluations on the dynamics of forage yield were made for the two systems . Theresults may have important implication to the sustainable use of grassland and grassland ecosystem managements .Materials and methods The study site is located in Stip a brev i f lora desert steppe in Sunit Right Banner of Inner Mongolian (４２°１６′２６″N ,１１２°４７′１７″E) . Annual‐mean temperature is ６ .２ ℃ and average precipitation is ２０９ mm . The experiment treatmentswere composed of a banning grazing plot ( BG ,７３３ m２ ) ,deferral grazing plot one ( DG１ ,１３５７ m２ ) ,deferral grazing plot two(DG２ ,１４７２ m２ ) ,deferral grazing plot three (DG３ ,２１７２ m２ ) ,a continuous grazing plot ( CG ,２３４５ m２ ) . The grazing duration ofDG１ ,DG２ and DG３ was ４０ day ,５０ day and ６０ day ,staring from April ５ ,２００５ ,April １５ ,２００５ and April ２５ ,２００５ ,respectively .Continuous grazing plot was grazed from April ５ ,２００５ . Stocking rate of the grazing plot was １４９ sheep ha‐１ . Standing crops ofthe plant communities were measured .Results and discussion The aboveground biomass of the standing crop in five treatments did not differ significantly in earlygrazing ( p ＞ ０ .０５) . With continuation of grazing ,the aboveground biomass of the standing crop in the banning grazing plotwas significantly higher than those of the other four plots . The biomasses in the three deferral grazing plots were alsosignificantly higher than that of the continuous grazing plot ( p ＜ ０ .０５ ) . However ,the biomass yields in the three deferralgrazing plots were not directly proportional to the deferral grazing time .Figure 1 The dynamics o f p lant community standing crop .Conclusion The banning grazing and deferral grazing could increase the aboveground biomass of the standing crop .ReferencesLi Qingfeng ,Li Fusheng ,２００１ . A preliminary report on Spring banning grazing on desert grassland ,Grassland o f China ９ :１‐６ .Zhao Gang ,Cao Zilong ,Li qingfeng .２００３ . The effect of spring banning grazing on Inner Mongolia grassland vegetation . ACTAA grestia Sinica ６ :１８３‐１８８ .Li Qingfeng ,２００５ .The research and recommendation on grassland animal husbandry and grassland ecology protection (１ ) — Penfeeding under banning grazing ,seasonal deferral grazing and rotational grazing . Inner Mongolia Prataculture １７(１ ) :２５‐２８ .

Response of Arid Grassland Community Standing Crop to Banning Grazing and Deferral Grazing Management

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Response of Arid Grassland Community Standing Crop to Banning Grazing and Deferral Grazing Management

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