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Aboveground productivity and community stability tend to keep stable under long-term fencing and nitrogen fertilization on restoration of degraded grassland

文献类型：期刊论文

作者Sheng, Jun; Zhou, Meng; Guo, Yumeng; Yuan, Yujia; Li, Xin; Zhang, Wen-Hao; Bai, Wenming4
刊名ECOLOGICAL INDICATORS
出版日期2022
卷号140
ISSN号1470-160X
关键词Aboveground productivity Community stability Grassland degradation Restoration mechanism Temperate steppe
DOI10.1016/j.ecolind.2022.108971
文献子类Article
英文摘要Restoration of degraded grassland is an essential issue which has been widely concerned but not effectively resolved. Fencing and nitrogen fertilization are common and efficient restoration practices. However, there are still controversy on the effectiveness and duration of fencing and nitrogen fertilization on the restoration of degraded grassland. To estimate the effects of fencing and nitrogen fertilization on the community above-ground net primary productivity (ANPP) and stability, and explore the underlying mechanism, an 18-year (from 2003 to 2020) fencing and nitrogen fertilization (8 g N m-2 yearxfffd; 1) field experiment was conducted on a degraded temperate steppe in Inner Mongolia. Community ANPP and species richness were measured at the peak of plant biomass in growing season (mid-August) from 2004 to 2020. Temporal stability of community ANPP were calculated to estimate the community stability under different restoration managements. We found that both fencing and nitrogen fertilization can significantly increase the ANPP. Nevertheless, ANPP tended to keep stable rather than continuously increase with the extension of restoration duration. Long-term fencing and nitrogen fertilization significantly reduced the stability of ANPP in early stage of restoration (2004-2010), but had no significant effect on the stability of ANPP in later stage (2011-2020). Moreover, the stability of ANPP maintained stable with extension of restoration duration. Furthermore, we found that the biological factors that regulate the community stability were similar between the two restoration measures. Specifically, the stability of ANPP was regulated by species asynchrony in early phase, while, it was mediated by both species asynchrony and dominant species stability in later phase. Overall, from the perspective of community ANPP, the degraded steppe reached optimal status after approximately seven years of fencing and nitrogen fertilization, appropriate utilization after seven years' restoration may be conducive to maintain ANPP and the stability of ANPP. This study provided valuable information for better restoring and managing the degraded temperate steppes.
学科主题Biodiversity Conservation ; Environmental Sciences
电子版国际标准刊号1872-7034
出版地AMSTERDAM
WOS关键词ECOSYSTEM STABILITY ; GRAZING EXCLUSION ; PLANT DIVERSITY ; INNER-MONGOLIA ; TEMPORAL STABILITY ; SOIL PROPERTIES ; BIODIVERSITY ; ENRICHMENT ; BIOMASS ; CHINA
WOS研究方向Science Citation Index Expanded (SCI-EXPANDED)
语种英语
出版者ELSEVIER
WOS记录号WOS:000806499000001
资助机构National Natural Science Foundation of China [32030075] ; China Postdoctoral Science Foundation [2019M660857, 2020T130690] ; Special Research Assistant Grant Program of the Chinese Academy of Sciences
源URL[http://ir.ibcas.ac.cn/handle/2S10CLM1/29035]  
专题植被与环境变化国家重点实验室
作者单位1.Guo, Yumeng
2.Yuan, Yujia
3.Li, Xin
4.Zhang, Wen-Hao
5.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China
6.Univ Chinese Acad Sci, Coll Life Sci, Beijing 100049, Peoples R China
7.[Sheng, Jun
8.Zhou, Meng
推荐引用方式
GB/T 7714		 Sheng, Jun,Zhou, Meng,Guo, Yumeng,et al. Aboveground productivity and community stability tend to keep stable under long-term fencing and nitrogen fertilization on restoration of degraded grassland[J]. ECOLOGICAL INDICATORS,2022,140.
APA Sheng, Jun.,Zhou, Meng.,Guo, Yumeng.,Yuan, Yujia.,Li, Xin.,...&Bai, Wenming.(2022).Aboveground productivity and community stability tend to keep stable under long-term fencing and nitrogen fertilization on restoration of degraded grassland.ECOLOGICAL INDICATORS,140.
MLA Sheng, Jun,et al."Aboveground productivity and community stability tend to keep stable under long-term fencing and nitrogen fertilization on restoration of degraded grassland".ECOLOGICAL INDICATORS 140(2022).

入库方式： OAI收割

来源：植物研究所

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