Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.scitotenv.2023.168386 |
Nitrogen and water addition alters species diversity and interspecific relationship in a desert grassland | |
Du, Zhongyu; Zhang, Xinwen; Liu, Shuxuan; An, Hui | |
通讯作者 | An, H |
来源期刊 | SCIENCE OF THE TOTAL ENVIRONMENT
![]() |
ISSN | 0048-9697 |
EISSN | 1879-1026 |
出版年 | 2024 |
卷号 | 908 |
英文摘要 | Water and nitrogen (N) often affect plant species diversity and interspecific relationship among plant populations in global terrestrial ecosystems. However, the effects of water and N addition on plant diversity and interspecific relationship remain poorly understood. In the study, we designed a three-year field experiment in a desert grassland to assess the effect of increased water (natural +50 %) and N addition (10 g & sdot;N & sdot;m 2 & sdot;a 1) on plant diversity and interspecific relationship. Our results showed that the alpha diversity was significantly changed under increased water (W), N addition (N), and water plus N addition (WN). The species richness was decreased significantly on year scales (10 %-27 %), whereas the Pielou index first increased and then decreased over three years and was significantly affected by the interaction between increased water and N addition. The total and pairwise beta diversity were significantly increased by N addition, the community was mainly caused by the turnover component after N addition, especially in 2019 and 2020 (16.6 % and 9 %, respectively). There were significant negative associations among overall populations and dominant populations under N addition, especially Stipa bungeana and Gypsophila davurica, Gypsophila davurica and Oxytropis acemose, Artemisia dalai-lamae, and Haplophyllum dauricum. Our findings suggested that plant community structure and composition changes may be due to competition for resources among dominant populations and the turnover component under increased water and N addition, which should be considered in ecosystem management. |
英文关键词 | Plant species diversity Interspecific relationship Increased water N addition Desert grassland |
类型 | Article |
语种 | 英语 |
收录类别 | SCI-E |
WOS记录号 | WOS:001113119700001 |
WOS关键词 | PLANT COMMUNITY COMPOSITION ; BETA-DIVERSITY ; COMPETITION ; STABILITY ; DESERTIFICATION ; TRANSFORMATION ; LIMITATION ; RESPONSES ; RICHNESS ; IMPACTS |
WOS类目 | Environmental Sciences |
WOS研究方向 | Environmental Sciences & Ecology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/405435 |
推荐引用方式 GB/T 7714 | Du, Zhongyu,Zhang, Xinwen,Liu, Shuxuan,et al. Nitrogen and water addition alters species diversity and interspecific relationship in a desert grassland[J],2024,908. |
APA | Du, Zhongyu,Zhang, Xinwen,Liu, Shuxuan,&An, Hui.(2024).Nitrogen and water addition alters species diversity and interspecific relationship in a desert grassland.SCIENCE OF THE TOTAL ENVIRONMENT,908. |
MLA | Du, Zhongyu,et al."Nitrogen and water addition alters species diversity and interspecific relationship in a desert grassland".SCIENCE OF THE TOTAL ENVIRONMENT 908(2024). |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。