Deep soil microbial carbon use efficiency responds stronger to nitrogen deposition than top soil in tropical forests, southern China
文献类型： 外文期刊
作者： Jiang, Yamin 1 ; Su, Tianyan 1 ; Wang, Huafeng 2 ; Yang, Qiu 1 ; Lu, Jingli 1 ; Fu, Qunyou 1 ; Mao, Han 4 ; Xu, Wenxian 5 ; Luo, Yiqi 6 ; Liu, Wenjie 1 ; Yang, Huai 7 ; Fang, Mengyang 3 ;
作者机构： 1.Hainan Univ, Sch Ecol & Environm, Key Lab Agroforestry Environm Proc & Ecol Regulat, Haikou, Peoples R China
2.Hainan Univ, Sch Trop Agr & Forestry, Haikou, Peoples R China
3.Sanya Trop Ecosyst Carbon Source & Sink Field Sci, Sanya, Peoples R China
4.Lanzhou Univ, Coll Ecol, State Key Lab Grassland Agroecosyst, Lanzhou, Peoples R China
5.Chinese Acad Trop Agr Sci, Rubber Res Inst, Haikou, Peoples R China
6.Cornell Univ, Sch Integrat Plant Sci, Ithaca, NY USA
7.Inst Trop Bamboo, Int Ctr Bamboo & Rattan, Sanya Res Base, Rattan & Flower, Sanya, Peoples R China
关键词： CUE; Nitrogen addition; Labeled substrate; Phospholipid fatty acids; SIP-PLFA; Eco-enzymatic stoichiometric model
期刊名称：PLANT AND SOIL （ 影响因子：4.9； 五年影响因子：5.2 ）
ISSN： 0032-079X
年卷期： 2024 年
页码：
收录情况： SCI
摘要： Background and aimsSoil microbial carbon use efficiency (CUE), a key parameter determining soil C fate, has been associated with soil nitrogen (N) availability. However, the responses of forest soil CUE to aggregated N deposition are not clear. Moreover, it remains unclear whether responses may be mediated by soil depth. It is crucial to investigate the patterns and drivers of CUE with N deposition in forest top and deep soil.MethodsThis study examined the responses of microbial CUE to short-term N addition treatments in the top (0-10 cm) and deep (60-80 cm) soils from two tropical forests in Hainan, southern China. Additionally, a meta-analysis was conducted to reveal a global pattern of forest soil microbial CUE response to N deposition.ResultsThe addition of N in the two tropical forests did not change topsoil CUE, whereas deep soil CUE increased by 25.5% (0.44 and 0.55 without and with N addition) on average. In the two soil depths, changes in CUE to N addition were negatively correlated with Fungi: Bacteria ratio (F: B). The negative relationship between resource limitation and CUE was found to be present with C limitation in top soil and N limitation in deep soil. N cycling enzyme activities played a vital role in regulating microbial resource limitation and CUE. The decrease in F: B and C: N ratios with the addition of N partly explained the stronger response of CUE in deep soil. At the global scale, the addition of N had no effect on the forest top soil CUE. However, the significant decline in pH and microbial biomass carbon with N deposition could reduce microbial CUE.ConclusionThe addition of N facilitated carbon storage in deep soil but had no effects on topsoil carbon storage in a tropical forest. Our results highlighted that the soil depth-driven variation in soil C: N and F: B can regulate microbial CUE, which could provide a basis for understanding the soil C cycle in tropical forest ecosystems.
- 相关文献
作者其他论文 更多>>
-
Spatiotemporal dynamics and underlying mechanisms of ecosystem respiration in rubber plantations: a case study in Hainan Island
作者：An, Yinghe;Wang, Yichen;Zhang, Runqing;Wu, Lan;Liu, Wenjie;Wang, Peng;An, Yinghe;Wu, Zhixiang;An, Yinghe;Wang, Yichen;Zhang, Runqing;Wu, Lan;Liu, Wenjie;Wang, Peng;Sun, Zhongyi;Wu, Zhixiang;Sun, Zhongyi
关键词：Carbon sequestration; Machine learning; Least square boosted regression trees; Climatic factors; Rubber plantations
-
Divergence in Quantifying ET with Independent Methods in a Primary Karst Forest under Complex Terrain
作者：Li, Qingyun;Liu, Wenjie;Wang, Peng;Liu, Qian;Song, Bo;Li, Qingyun;Zhang, Ang;Li, Qingyun;Zheng, Lu;Liu, Wenjie;Zheng, Lu;Liu, Shengyuan;Jin, Yan
关键词：evapotranspiration; karst forest; eddy covariance; Penman-Monteith
-
Attribution analysis of water use efficiency in tropical rubber plantations during drought-monsoon season transition
作者：Guo, Shenshen;Liu, Wenjie;Sun, Zhongyi;Wu, Lan;Wang, Peng;Guo, Shenshen;Wu, Zhixiang;Wu, Zhixiang;Fang, Mengyang
关键词：water use efficiency; rubber plantation ecosystem; surface resistance; monsoon season; gross primary productivity
-
Long-term partial substitution of chemical nitrogen fertilizer with organic fertilizers increased SOC stability by mediating soil C mineralization and enzyme activities in a rubber plantation of Hainan Island, China
作者：Xu, Wenxian;Liu, Wenjie;Yang, Qiu;Tang, Shuirong;Meng, Lei;Wu, Yanzheng;Wang, Jingjing;Wu, Lei;Wu, Min;Xue, Xinxin;Wang, Wenbin;Luo, Wei
关键词：C decomposition; Enzyme activities; Labile SOC fractions; Long-term fertilization; SOC stability
-
Improving soil pH, nutrient concentrations, and enzyme activities by green manure returning in young and mature rubber plantation on Hainan Island, China
作者：Xu, Wenxian;Yang, Qiu;Jiang, Yamin;Yu, Jianan;Li, Jiale;Liu, Wenjie;Xu, Wenxian;Wu, Zhixiang;Jiang, Yamin
关键词：Kudzu; Returning methods; Rubber plantation; Soil fertility; Enzyme activity
-
Organic management improves soil phosphorus availability and microbial properties in a tea plantation after land conversion from longan ( Dimocarpus longan )
作者：Wu, Tingting;Wu, Tingting;Wang, Dungang;Zou, Yukun;Lin, Rui;Li, Qinfen;Wang, Jinchuang;Wu, Tingting;Wang, Dungang;Zou, Yukun;Lin, Rui;Li, Qinfen;Wang, Jinchuang;Wu, Tingting;Wang, Dungang;Zou, Yukun;Lin, Rui;Li, Qinfen;Wang, Jinchuang;Liu, Wenjie;Yang, Qiu;Wang, Dungang;Gbokie, Thomas;Bughio, Mansoor Ahmed
关键词：Land use change; P fractions; Phospholipid fatty acid analysis (PLFA); Soil microbial community; Tea plantation
-
The Nutrient Status of Plant Roots Reveals Competition Intensities in Rubber Agroforestry Systems
作者：Wu, Junen;Zeng, Huanhuan;Zhao, Fan;Chen, Chunfeng;Jiang, Xiaojin;Zhu, Xiai;Wang, Pingyuan;Liu, Wenjie;Zeng, Huanhuan;Zhao, Fan;Chen, Chunfeng;Jiang, Xiaojin;Zhu, Xiai;Wang, Pingyuan;Liu, Wenjie;Zeng, Huanhuan;Wu, Zhixiang
关键词：agroforestry systems; Bayesian network; belowground competition; nutrient cycling; plant nutrient allocation; plant– soil interactions
