Plant functional diversity mediates the effects of vegetation and soil properties on community-level plant nitrogen use in the restoration of semiarid sandy grassland
文献类型：期刊论文
| 作者 | Zuo, Xiaoan1,2; Zhang, Jing1; Lv, Peng1; Zhou, Xin1; Li, Yulin1; Luo, Yayong1; Luo, Yongqing1; Lian, Jie1; Yue, Xiyuan1 |
| 刊名 | ECOLOGICAL INDICATORS
 |
| 出版日期 | 2016-05-01 |
| 卷号 | 64页码:272-280 |
| ISSN号 | 1470-160X |
| 关键词 | Functional dispersion Functional traits Mass ratio hypothesis Niche complementarity Structure equation model Vegetation restoration |
| DOI | 10.1016/j.ecolind.2016.01.012 |
| 通讯作者 | Zuo, Xiaoan(zuoxa@lzb.ac.cn) |
| 英文摘要 | Species-rich plant communities use nitrogen (N) more efficiently in grassland ecosystems; however, the role of plant functional diversity in affecting community level plant N-use has received little attention. We examined plant N content, stock and N-use efficiency at community-level along a restoration gradient of sandy grassland (mobile dune, semi-fixed dune, fixed dune and grassland) in Horqin Sand Land, northern China. We used the functional trait-based approach to examine how plant functional diversity, reflected by the most abundant species' traits (community-weighted mean, CWM) and the dispersion of functional trait values (FDis), affected N-use efficiency in sandy grassland restoration. We further used the structure equation model (SEM) to evaluate the direct or indirect effects of plant species richness, biomass, functional diversity and soil properties on community-level plant N-use efficiency. We found that plant biomass and its N stock increased following sandy grassland restoration, and there were lower plant N content and higher N-use efficiency in semi-fixed dune, fixed dune and grassland as compared with mobile dune. N-use efficiency was positively associated with plant species richness, biomass, CWM plant height, CWM leaf C:N, FDis and soil gradient, but SEM results showed that species richness, CWM leaf C:N, plant biomass and FDis controlled by soil properties were the main factors exerting direct effects. CWM plant height also had a positive effect on N-use efficiency through its indirect effect on plant biomass. Soil gradient increased N-use efficiency through an indirect effect on vegetation rather than a direct effect. Final SEM models based on different plant functional diversity explained over 74% of variances in N-use efficiency. Effects of plant functional diversity on N-use efficiency supported both the mass ratio hypothesis and the complementarity hypothesis. Our results clearly highlight the important role of plant functional diversity in mediating the effects of vegetation and soil properties on community level plant N-use in sandy grassland ecosystems. (C) 2016 Elsevier Ltd. All rights reserved. |
| 收录类别 | SCI |
| WOS关键词 | RESOURCE-USE EFFICIENCY ; ECOSYSTEM SERVICES ; PRODUCTIVITY RELATIONSHIP ; SPECIES-DIVERSITY ; INDIRECT DRIVERS ; NORTHERN CHINA ; TRAIT ; PATTERNS ; MECHANISMS ; LAND |
| WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
| WOS类目 | Biodiversity Conservation ; Environmental Sciences |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE BV |
| WOS记录号 | WOS:000371098700028 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2557360 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Zuo, Xiaoan |
| 作者单位 | 1.Chinese Acad Sci, Naiman Desertificat Res Stn, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, CAREERI, Lab Stress Ecophysiol & Biotechnol LSEB, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zuo, Xiaoan,Zhang, Jing,Lv, Peng,et al. Plant functional diversity mediates the effects of vegetation and soil properties on community-level plant nitrogen use in the restoration of semiarid sandy grassland[J]. ECOLOGICAL INDICATORS,2016,64:272-280. |
| APA | Zuo, Xiaoan.,Zhang, Jing.,Lv, Peng.,Zhou, Xin.,Li, Yulin.,...&Yue, Xiyuan.(2016).Plant functional diversity mediates the effects of vegetation and soil properties on community-level plant nitrogen use in the restoration of semiarid sandy grassland.ECOLOGICAL INDICATORS,64,272-280. |
| MLA | Zuo, Xiaoan,et al."Plant functional diversity mediates the effects of vegetation and soil properties on community-level plant nitrogen use in the restoration of semiarid sandy grassland".ECOLOGICAL INDICATORS 64(2016):272-280. |
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来源：寒区旱区环境与工程研究所
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