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Impact of tropical forest conversion on soil bacterial diversity in tropical region of China

文献类型： 外文期刊

作者： Lan, Guoyu 1 ; Li, Yuwu 2 ; Wu, Zhixiang 1 ; Xie, Guishui 1 ;

作者机构： 1.Chinese Acad Trop Agr Sci, Rubber Res Inst, Danzhou 571737, Hainan, Peoples R China

2.Chinese Acad Sci, Key Lab Trop Forest Ecol, Xishuangbanna Trop Bot Garden, Kunming 650223, Yunnan, Peoples R China

3.Minist Agr, Danzhou Invest & Expt Stn Trop Crops, Danzhou City 571737, Hainan, Peoples R China

关键词： Bacterial composition;Bacterial diversity;Rubber plantations;Secondary tropical forest;Tropical seasonal rainforest

期刊名称：EUROPEAN JOURNAL OF SOIL BIOLOGY （ 影响因子：2.846； 五年影响因子：3.618 ）

ISSN： 1164-5563

年卷期： 2017 年 83 卷

页码：

收录情况： SCI

摘要： In Xishuangbanna, a China's tropical region, monoculture rubber plantations have expanded dramatically over the past two decades. However, the effect of conversion of tropical forests to rubber plantations on the soil microbial compositions and diversity remains poorly understood. This study investigated the bacterial diversity and biomass in rubber plantations, secondary tropical forest and tropical seasonal rainforest in Xishuangbanna, southwest China, based on an analyses of PCR-amplified 16S rRNA genes. Our findings revealed that soil of rubber plantation was different from secondary tropical forest and tropical seasonal rainforest in bacterial compositions at phylum, family as well as OTU (Operational Taxonomic Units) levels. The most abundant phylum in rubber plantations was Finnicutes, however, in secondary tropical forest and tropical seasonal rainforest it was Proteobacteria. In both dry season and rainy season, diversity indices of rubber plantations were significantly higher than those of secondary tropical forest and tropical seasonal rainforest, indicating that bacterial diversity increased after conversion. However, the total microbial biomass carbon (MBC) decreased after conversion. RDA results showed that soil pH and total phosphorus maybe the two most important factors controlling bacterial communities, and explained 49.2% and 38.1% of total variance of phylum compositions, respectively. Management practices, especially the application of fertilizers with phosphorous would thus probably influence the taxonomic composition and diversity of bacterial communities in this region.

  • 相关文献

[1]Change in Soil Microbial Community Compositions and Diversity Following the Conversion of Tropical Forest to Rubber Plantations in Xishuangbanan, Southwest China. Lan, Guoyu,Jatoi, Muhammad Tahir,Wu, Zhixiang,Xie, Guishui,Lan, Guoyu,Li, Yuwu,Wu, Zhixiang,Xie, Guishui,Lan, Guoyu,Wu, Zhixiang,Xie, Guishui,Jatoi, Muhammad Tahir,Tan, Zhenghong. 2017

[2]Components of soil respiration and its monthly dynamics in rubber plantation ecosystems. Wu, Zhixiang,Xie, Guishui,Zhou, Zhaode,Wu, Zhixiang,Guan, Limin,Chen, Bangqian,Yang, Chuan,Lan, Guoyu,Xie, Guishui. 2013

[3]Tree species diversity of a 20-ha plot in a tropical seasonal rainforest in Xishuangbanna, southwest China. Lan, Guoyu,Zhu, Hua,Cao, Min,Lan, Guoyu. 2012

[4]Soil Bacterial Diversity Impacted by Conversion of Secondary Forest to Rubber or Eucalyptus Plantations: A Case Study of Hainan Island, South China. Lan, Guoyu,Li, Yuwu,Wu, Zhixiang,Xie, Guishui.

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