中国地理科学 ›› 2017, Vol. 27 ›› Issue (2): 239-247.doi: 10.1007/s11769-017-0853-2

• 论文 • 上一篇    下一篇

Effects of Wetland Vegetation on Soil Microbial Composition: A Case Study in Tumen River Basin, Northeast China

QIN Lei1,2,3, JIANG Ming1, TIAN Wei2, ZHANG Jian2, ZHU Weihong4,5   

  1. 1. Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China;
    2. Geography De-partment of Sciences, Yanbian University, Yanji 133002, China;
    3. University of Chinese Academy of Sciences, Beijing 100049, China;
    4. Key Laboratory of Natural Resources of Changbai Mountain & Functional Molecules, Yanji 133002, China;
    5. State Environmental Protection Key Laboratory of Wetland Ecology and Vegetation Restoration, Northeast Normal University, Changchun 130117, China
  • 收稿日期:2015-11-02 修回日期:2016-01-11 出版日期:2017-04-27 发布日期:2017-03-07
  • 通讯作者: ZHU Weihong.E-mail:whzhu@ybu.edu.cn E-mail:whzhu@ybu.edu.cn
  • 基金资助:

    Under the auspices of National Natural Science Foundation of China (No. 41361015, 41271106, 41271107, 41501105), Open Fund of the State Environmental Protection Key Laboratory of Wetland Ecology and Vegetation Restoration, Northeast Normal University (No. 130028630)

Effects of Wetland Vegetation on Soil Microbial Composition: A Case Study in Tumen River Basin, Northeast China

QIN Lei1,2,3, JIANG Ming1, TIAN Wei2, ZHANG Jian2, ZHU Weihong4,5   

  1. 1. Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China;
    2. Geography De-partment of Sciences, Yanbian University, Yanji 133002, China;
    3. University of Chinese Academy of Sciences, Beijing 100049, China;
    4. Key Laboratory of Natural Resources of Changbai Mountain & Functional Molecules, Yanji 133002, China;
    5. State Environmental Protection Key Laboratory of Wetland Ecology and Vegetation Restoration, Northeast Normal University, Changchun 130117, China
  • Received:2015-11-02 Revised:2016-01-11 Online:2017-04-27 Published:2017-03-07
  • Contact: 10.1007/s11769-017-0853-2 E-mail:whzhu@ybu.edu.cn
  • Supported by:

    Under the auspices of National Natural Science Foundation of China (No. 41361015, 41271106, 41271107, 41501105), Open Fund of the State Environmental Protection Key Laboratory of Wetland Ecology and Vegetation Restoration, Northeast Normal University (No. 130028630)

摘要:

Hydrology plays a dominant role in wetland plant distribution and microbial composition, but few studies explicitly attempted to relate the linkage between wetland vegetation and microbial community. The present study consisted of five wetland plant communities along three adjacent flood gradients zones (zone 1 dominated by Carex appendiculat, zone 2 dominated by Eleocharis ovate, and zone 3 dominated by Phragmites australis/Bidens pilosa/Calamagrostis angustifolia, which formed separate, monoculture patches). Gram negative and arbuscular mycorrhizal fungal phospholipid fatty acid (PLFA) are more abundant in the site with short flooding period (zone 3) than in the site with long flooding period (zone 1), and they are also different in the P. australis, B. spilosa and C. angustifolia of zone 3. Principle Component Analysis (PCA) showed that the flooding period could explain 92.4% of variance in microbial composition. Redundancy Analysis (RDA) showed that available nitrogen (AN), total nitrogen (TN) and soil organic matter (SOM) could explain the 79.5% of variance in microbial composition among E. ovata, P. australis, B. pilosa and C. angustifolia. Results demonstrated that flooding period was the main factor in driving the microbial composition and plant-derived resources could influence soil microbial composition in the seasonally flooded zones.

关键词: plant soil feedback, redundancy analysis, phospholipid fatty acid (PLFA), soil property, flooding period

Abstract:

Hydrology plays a dominant role in wetland plant distribution and microbial composition, but few studies explicitly attempted to relate the linkage between wetland vegetation and microbial community. The present study consisted of five wetland plant communities along three adjacent flood gradients zones (zone 1 dominated by Carex appendiculat, zone 2 dominated by Eleocharis ovate, and zone 3 dominated by Phragmites australis/Bidens pilosa/Calamagrostis angustifolia, which formed separate, monoculture patches). Gram negative and arbuscular mycorrhizal fungal phospholipid fatty acid (PLFA) are more abundant in the site with short flooding period (zone 3) than in the site with long flooding period (zone 1), and they are also different in the P. australis, B. spilosa and C. angustifolia of zone 3. Principle Component Analysis (PCA) showed that the flooding period could explain 92.4% of variance in microbial composition. Redundancy Analysis (RDA) showed that available nitrogen (AN), total nitrogen (TN) and soil organic matter (SOM) could explain the 79.5% of variance in microbial composition among E. ovata, P. australis, B. pilosa and C. angustifolia. Results demonstrated that flooding period was the main factor in driving the microbial composition and plant-derived resources could influence soil microbial composition in the seasonally flooded zones.

Key words: plant soil feedback, redundancy analysis, phospholipid fatty acid (PLFA), soil property, flooding period