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Response of the soil food web to warming and litter removal in the Tibetan Plateau, China

文献类型：期刊论文

作者Wu, Yang3; Zhou, HuaKun1,4; Chen, WenJing3; Zhang, Yue3; Wang, Jie3; Liu, HongFei2; Zhao, ZiWen3; Li, YuanZe3; You, QiMing5; Yang, Bing6
刊名GEODERMA
出版日期2021-11-01
卷号401页码:10
ISSN号0016-7061
关键词Soil nematode Nematode metabolic footprint Soil food web Qinghai-Tibet Plateau Warming and litter removal
DOI10.1016/j.geoderma.2021.115318
通讯作者Xue, Sha(xuesha100@163.com)
英文摘要Both climate warming and litter removal alter soil nematode communities and the structure, stability, and function of soil food webs. The soil nematode metabolic carbon footprint, based on nematode biomass and respiration, can be used to indicate ecosystem function and the response of nematodes to nutrient enrichment in the ecosystem. However, it is unclear whether or how climate warming and litter removal affect the metabolic carbon footprint of soil nematodes and soil food webs. In this study, we investigated four warming and litter removal treatments in the Qinghai-Tibet Plateau, China, to determine the effects of climate warming and litter removal on soil microbial food webs. The treatments included: (1) control (CK), (2) warming, (3) litter removal, (4) warming + litter removal. We found that warming and litter removal had significant negative effects on the diversity and richness of soil nematodes. In addition, our results showed warming indirectly and directly affected vegetation diversity, thereby altering soil nematode diversity. Vegetation played an important role in the maintenance of soil nematode community diversity. The enrichment and structural footprints reflected nematodes that could respond most rapidly to resource enrichment and those with higher trophic levels in soil food webs, respectively. Overall, warming and litter removal significantly negatively affect the enrichment metabolic footprint, indicating they could significantly reduce the external resource inputs into the food web. Both warming and litter removal reduced the structural metabolic footprint of the soil food web, although the changes were not significant, indicating that the metabolic activity of nematodes of high nutrient levels decreased and the ability to regulate the food web from top-bottom effects was weakened under warming and litter removal. The nematode functional metabolic footprints indicated that litter removal could aggravate the effect of warming on the soil food web and result in more severe degradation. The combination of warming and litter removal significantly inhibited the connectance of the bacterial channel, but had no significant effect on the fungal channel. These results suggest that the soil food web enhanced resistance to the environment by increasing the proportion of the fungal channel. It is critical to understand the responses of soil food webs to climate warming and litter removal to better predict how ecosystem functions will change in the future.
WOS关键词NEMATODE COMMUNITIES ; ORGANIC-CARBON ; TEMPERATURE SENSITIVITY ; MICROBIAL COMMUNITIES ; METABOLIC FOOTPRINTS ; FOREST ; PLANT ; DIVERSITY ; FERTILIZATION ; DECOMPOSITION
资助项目Qinghai innovation platform construction project by Chinese Academy of Sciences[2021-ZJY01] ; Joint Research Project of Three-River-Resource National Park - Chinese Academy of Sciences[LHZX-2020-08] ; Fundamental Research Funds for the Central Universities[2452021165] ; Science Fund for Distinguished Young Scholars of Shaanxi Province, China[2021JC-50] ; Qinghai Provincial Key Laboratory of Restoration Ecology in Cold Regions, Northwest Institute of Plateau Biology[2020-KF-04] ; Qinghai Provincial People's Government[LHZX-2020-08]
WOS研究方向Agriculture
语种英语
出版者ELSEVIER
WOS记录号WOS:000667306700025
资助机构Qinghai innovation platform construction project by Chinese Academy of Sciences ; Joint Research Project of Three-River-Resource National Park - Chinese Academy of Sciences ; Fundamental Research Funds for the Central Universities ; Science Fund for Distinguished Young Scholars of Shaanxi Province, China ; Qinghai Provincial Key Laboratory of Restoration Ecology in Cold Regions, Northwest Institute of Plateau Biology ; Qinghai Provincial People's Government
源URL[http://ir.igsnrr.ac.cn/handle/311030/163765]  
专题中国科学院地理科学与资源研究所
通讯作者Xue, Sha
作者单位1.Qinghai Univ, State Key Lab Plateau Ecol & Agr, Xining, Peoples R China
2.Univ Bayreuth, Dept Agroecol, Bayreuth, Germany
3.Northwest A&F Univ, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China
4.Chinese Acad Sci, Northwest Inst Plateau Biol, Qinghai Prov Key Lab Restorat Ecol Cold Reg, Xining 810000, Peoples R China
5.Qunjia State Forest Farm, Xining 810000, Huangzhong Coun, Peoples R China
6.Sichuan Acad Giant Panda, Chengdu 610041, Peoples R China
7.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China
推荐引用方式
GB/T 7714		 Wu, Yang,Zhou, HuaKun,Chen, WenJing,et al. Response of the soil food web to warming and litter removal in the Tibetan Plateau, China[J]. GEODERMA,2021,401:10.
APA Wu, Yang.,Zhou, HuaKun.,Chen, WenJing.,Zhang, Yue.,Wang, Jie.,...&Xue, Sha.(2021).Response of the soil food web to warming and litter removal in the Tibetan Plateau, China.GEODERMA,401,10.
MLA Wu, Yang,et al."Response of the soil food web to warming and litter removal in the Tibetan Plateau, China".GEODERMA 401(2021):10.

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来源：地理科学与资源研究所

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