Volume 27 Issue 3
Jun.  2010
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QIN Jing, HE Kang-ning, LIU Shuo, ZHENG Jia-li, WANG Zhan-lin. Species composition and diversity for plant communities in conversion of farmland back to forest areas of Qinghai Province[J]. Journal of Zhejiang A&F University, 2010, 27(3): 410-416. doi: 10.11833/j.issn.2095-0756.2010.03.015
Citation: QIN Jing, HE Kang-ning, LIU Shuo, ZHENG Jia-li, WANG Zhan-lin. Species composition and diversity for plant communities in conversion of farmland back to forest areas of Qinghai Province[J]. Journal of Zhejiang A&F University, 2010, 27(3): 410-416. doi: 10.11833/j.issn.2095-0756.2010.03.015

Species composition and diversity for plant communities in conversion of farmland back to forest areas of Qinghai Province

doi: 10.11833/j.issn.2095-0756.2010.03.015
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  • Corresponding author: HE Kang-ning
  • Publish Date: 2010-06-20
通讯作者: 陈斌, bchen63@163.com
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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Species composition and diversity for plant communities in conversion of farmland back to forest areas of Qinghai Province

doi: 10.11833/j.issn.2095-0756.2010.03.015
    Corresponding author: HE Kang-ning

Abstract: Research on different plant communities of different plot types(conversion of farmland back to forests,natural secondary forest and farmland) was conducted in a project area that returned farmland to forests in Datong County,Qinghai Province from March to August in 2008. After analyzing species composition of the main plant communities(including 15 types,such as Picea crassifolia forests,Picea crassifolia-Betula platyphylla forests,Picea crassifolia-Hippohae rhamnoides ssp. sinensis forest,Larix principis-rupprechtii forests,Populus davidiana forests,and Sabina przewalskii forests),species richness index(R0),Gleason species richness index(I),Simpson ecological dominance index(D),Shannon-Weiner species diversity index(H),and Hill evenness index(E5) of the community were calculated. Results showed that (1) the level of the species diversity in the community was herb > shrub > tree. Also,(2) the level of the species diversity in mixed forests was higher than pure forests. (3) According to land use,species diversity was:natural secondary forest > artificial forest on converted farmland > cropland. However,after 27 years diversity of the converted farmland was close to that of the natural secondary forest. (4) As conversion time increased,the community became more and more steady-state. The H and I were small-big-small and the D and E5 were big-small-big. To promote stability and rejuvenation of plant communities when returning farmland to forests,logical distribution of species should be realized.[Ch,2 fig. 4 tab. 15 ref.]

QIN Jing, HE Kang-ning, LIU Shuo, ZHENG Jia-li, WANG Zhan-lin. Species composition and diversity for plant communities in conversion of farmland back to forest areas of Qinghai Province[J]. Journal of Zhejiang A&F University, 2010, 27(3): 410-416. doi: 10.11833/j.issn.2095-0756.2010.03.015
Citation: QIN Jing, HE Kang-ning, LIU Shuo, ZHENG Jia-li, WANG Zhan-lin. Species composition and diversity for plant communities in conversion of farmland back to forest areas of Qinghai Province[J]. Journal of Zhejiang A&F University, 2010, 27(3): 410-416. doi: 10.11833/j.issn.2095-0756.2010.03.015

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