Arid
DOI10.1038/srep31919
Response of aboveground biomass and diversity to nitrogen addition a five-year experiment in semi-arid grassland of Inner Mongolia, China
He, Kejian1,2; Qi, Yu3; Huang, Yongmei1; Chen, Huiying1; Sheng, Zhilu1; Xu, Xia1; Duan, Lei4
通讯作者Huang, Yongmei
来源期刊SCIENTIFIC REPORTS
ISSN2045-2322
出版年2016
卷号6
英文摘要

Understanding the response of the plant community to increasing nitrogen (N) deposition is helpful for improving pasture management in semi-arid areas. We implemented a 5-year N addition experiment in a Stipa krylovii steppe of Inner Mongolia, northern China. The aboveground biomass (AGB) and species richness were measured annually. Along with the N addition levels, the species richness declined significantly, and the species composition changed noticeably. However, the total AGB did not exhibit a noticeable increase. We found that compensatory effects of the AGB occurred not only between the grasses and the forbs but also among Gramineae species. The plant responses to N addition, from the community to species level, lessened in dry years compared to wet or normal years. The N addition intensified the reduction of community productivity in dry years. Our study indicated that the compensatory effects of the AGB among the species sustained the stability of grassland productivity. However, biodiversity loss resulting from increasing N deposition might lead the semi-arid grassland ecosystem to be unsustainable, especially in dry years.


类型Article
语种英语
国家Peoples R China
收录类别SCI-E
WOS记录号WOS:000382158900001
WOS关键词ECOSYSTEM RESPONSES ; SPECIES-DIVERSITY ; ACID GRASSLANDS ; LOW PH ; DEPOSITION ; PLANT ; PRECIPITATION ; GRADIENT ; BIODIVERSITY ; ENRICHMENT
WOS类目Multidisciplinary Sciences
WOS研究方向Science & Technology - Other Topics
来源机构北京师范大学 ; 清华大学
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/196342
作者单位1.Beijing Normal Univ, Coll Resources Sci & Technol, State Key Lab Earth Surface & Resource Ecol, Beijing 100875, Peoples R China;
2.Yunnan Univ, Coll Resource & Environm, Yunnan Inst Geog, Kunming 650091, Peoples R China;
3.Inner Mongolia Res Acad Environm Sci, Hohhot 010011, Peoples R China;
4.Tsinghua Univ, Sch Environm, State Key Lab Environm Simulat & Pollut Control, Beijing 100084, Peoples R China
推荐引用方式
GB/T 7714
He, Kejian,Qi, Yu,Huang, Yongmei,et al. Response of aboveground biomass and diversity to nitrogen addition a five-year experiment in semi-arid grassland of Inner Mongolia, China[J]. 北京师范大学, 清华大学,2016,6.
APA He, Kejian.,Qi, Yu.,Huang, Yongmei.,Chen, Huiying.,Sheng, Zhilu.,...&Duan, Lei.(2016).Response of aboveground biomass and diversity to nitrogen addition a five-year experiment in semi-arid grassland of Inner Mongolia, China.SCIENTIFIC REPORTS,6.
MLA He, Kejian,et al."Response of aboveground biomass and diversity to nitrogen addition a five-year experiment in semi-arid grassland of Inner Mongolia, China".SCIENTIFIC REPORTS 6(2016).
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