Gai, Yuqiang

Long, Ruijun

Sun, Juan

Teng, Yongqing

Yan, Di

Yang, Guofeng

English

University of Kentucky

University of Kentucky UKnowledge International Grassland Congress Proceedings 21st International Grassland Congress / 8th International Rangeland Congress Alien Plant Invasions of Jinfo Mountain National Nature Reserve--Identifying and Implying Juan Sun Qingdao Agricultural University, China Ruijun Long Lanzhou University, China Guofeng Yang Qingdao Agricultural University, China Yuqiang Gai Qingdao Agricultural University, China Di Yan Southwest University, China See next page for additional authors 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/21/1-3/25 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. Presenter Information Juan Sun, Ruijun Long, Guofeng Yang, Yuqiang Gai, Di Yan, and Yongqing Teng This event is available at UKnowledge: https://uknowledge.uky.edu/igc/21/1-3/25 瞯 ]124　 瞯 　 Multifunctional Grasslands in a Changing World 　 Volume Ⅰ 　Grasslands/Rangelands Resources and Ecology ——— Ecology of Grasslands/RangelandsAlien plant invasions of Jinfo Mountain National Nature Reserve — identifying and implyingSun Juan１ ,２ Long Rui j un３ Y ang Guo f eng１ Gai Yuqiang１ Y an Di２ Teng Yongqing２１ College o f A nimal Science and Veterinary Medicine , Qingdao A gricultural University , Qingdao , Shandong , China ,２６６１０９ ; ２ Southwest University , Beibei , Chongqing , China , ４００７１６ ; ３ School o f Pastoral A griculture Science andTechnology , L andz hou University , L anz hou , Gansu , China . E‐mial : sunj uan７６０３ ＠ sohu .comKey words : alien plant , invasion , identifying , Jinfo Mountain National Nature ReserveIntroduction Jinfo Mountain National Nature Reserve ( JMNNR) , located in the Range of Dalou and covering an area ofapproximately １３００ ha and ranging in elevation between ３４０ and ２２５１ m , Chongqing , China , contains a diversity of plantspecies (５９００ ) including subspecies and variation ( Han et al . , ２００６ ) . Though many of the plant species in the reserve arenative , there are many harmful exotic species which were identified to have been invading the local vegetation . Unfortunately ,little attention has been given to prevent and control the of exotic plant species . The objectives of the project were firstly toidentify these exotic plant species and then to discover the degree and severity of the invasions , and finally to reveal the way ofinvasion .Materials and methods Twenty‐four plots were selected randomly at of ８４０ m , １３４０m , １８４０m and ２２５１m elevation ,respectively . Each plot was further decided by ３ degrees of serious destruction , light destruction and no destruction inJMNNR . The plots were designed in the area of ４００ m２ (２０ m × ２０ m) for arbor , ２５m２ (５ m × ５ m) for shrub and １m２ (１ m ×１ m) for herbage , respectively . Each main ４００ m２ plot consisted of one ２５ m２ subplot and three １ m２ subplots . All subplotswere selected randomly . The parameters of elevations , watershed orientation , soil development , history of disturbance of theplots and subplots in which these exotic plant species were found were recorded . And the cover percentage and average heightof present vegetation were also recorded . In addition , invasive plant species were investigated through ３ line transects , １００ mlong and ２０ m wide . The invasive species encountered within each transect were recorded .Results A total of ６２ exotic plant species were identified and in which ９ exotic plant species were found in １５ sampling plots ofthe total plots investigated , and all of the exotic plant species were found within the line transects . Miscanthus f loridulus( Labill .) Warb . was discovered to be one of the most seriously invasive plant species , and was discovered at almost all theplaces where mankind had reached . Fif ty percent of the total invading exotic plant species were intentionally introduced ( II) .Twenty three percent were spontaneous invasion ( SI) . Aimless introducing ( AI) and unknown invasion ( UI) invading exoticplant species were nineteen percent and eight percent , respectively ( Figure １) . While the most seriously invading plant species‐Miscanthus f loridulus ( Labill .) Warb . was UI .Figure 1 The invading w ay o f exotic p lant species in JMNNR .Conclusions Invasions of exotic plant species in JMNNR was seriously , and what is dangerous is that the invasive way of theserious invasive plant species was unknown . Research and sustainable works need to be done in the future .ReferenceHan feng , Lin Maoxiang , Xiao Yijie , and Liu Zhenyu , ( ２００６ ) . Plant resources of Jinfo Mountain . L ishiz hen Medicine andMaterial Medical Research .１７ (３) ４８３‐４８４ .60 50 ~ 50 ~ 0 40 ~ 30 23 +-' C 19 0 20 () i-, 8 0 10 Q 0 SI II AI UI invading way 

Alien Plant Invasions of Jinfo Mountain National Nature Reserve--Identifying and Implying

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Alien Plant Invasions of Jinfo Mountain National Nature Reserve--Identifying and Implying

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