Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.foreco.2018.06.011 |
Changes of soil microbial and enzyme activities are linked to soil C, N and P stoichiometry in afforested ecosystems | |
Zhao, F. Z.1,2,3,4; Ren, C. J.5; Han, X. H.5; Yang, G. H.5; Wang, J.1,4; Doughty, R.6 | |
2018-11-01 | |
发表期刊 | FOREST ECOLOGY AND MANAGEMENT
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ISSN | 0378-1127 |
EISSN | 1872-7042 |
出版年 | 2018 |
卷号 | 427页码:289-295 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA |
英文摘要 | Afforestation has been shown to strongly affect substrate stoichiometry and profoundly influence the microbial community. However, the degree to which microbial and activity are linked to soil carbon (C), nitrogen (N) and phosphorus (P) stoichiometry in afforested ecosystems remains unclear. In this study, soil samples were collected from Robinia pseudoacacia L. (RP42, RP27, and RP17) and farmland (FL) sites with a chronosequence of 42, 27, and 17 years. We determined the microbial biomass C (C-mic), N (N-mic), C-mic to organic C (C-soil) ratio (C-mic:C-soil), N-mic to total nitrogen (N-soil) ratio (N-mic:N-soil), and metabolic quotient (R-mic:C-mic) to investigate microbial. We also measured soil b-glucosidase (BG), N-acetylglucosaminidase (NAG), acid phosphatase (AP), as well as C-soil, N-soil, and total phosphorus (P-soil). The results showed that, compared with FL, C-soil:P-soil and N-soil:P-soil were increased during aggradation, whereas C-soil:N-soil increased in RP27 and RP17 but decreased in RP42. C-mic:C-soil and N-mic:N-soil were 94% and 182% higher in RP42 than FL, respectively. However, R-mic:C-mic was lower in RP42, RP27, and RP17 than FL by 64%, 36% and 25%, respectively. Moreover, we found that BG, NAG, AP, BG:NAG, and BG:AP in RP42, RP27, and RP17 were higher than in FL. Compared with global soil (0.62 and 0.13), the lower BG:AP (0.42) and BG:NAG (0.03) ratios in present study indicated that P-soil may be limited. Additionally, redundancy analysis (RDA) revealed that the C-soil: N-soil was positively correlated with R-mic: C-mic but negatively with C-mic: C-soil and N-mic: N-soil, while C-soil:P-soil and N-soil:P-soil were also significantly and negatively correlated with BG:AP, BG:NAG, and NAG. Therefore, our results indicated that afforested ecosystem are highly susceptible to changes in soil microbial and enzyme stoichiometry during aggradation and may become P-limited. Such changes were modulated by soil nutrient stoichiometry. |
英文关键词 | Soil microbial Extracellular enzyme activities Soil C, N and P stoichiometry P-limited Afforested ecosystem |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000440775600031 |
WOS关键词 | ORGANIC-CARBON ; LOESS PLATEAU ; ECOENZYMATIC STOICHIOMETRY ; METABOLIC QUOTIENT ; SECONDARY SUCCESSION ; NUTRIENT ACQUISITION ; SPATIAL VARIABILITY ; BACTERIAL COMMUNITY ; CNP STOICHIOMETRY ; ABIOTIC FACTORS |
WOS类目 | Forestry |
WOS研究方向 | Forestry |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/23185 |
专题 | 气候变化 |
作者单位 | 1.Northwest Univ, Shaanxi Key Lab Earth Surface Syst & Environm Car, Xian 710127, Shaanxi, Peoples R China; 2.Chinese Acad Sci, Inst Water & Soil Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China; 3.Minist Water Resources, Yangling 712100, Shaanxi, Peoples R China; 4.Northwest Univ, Coll Urban & Environm Sci, Xian 710127, Shaanxi, Peoples R China; 5.Northwest A&F Univ, Coll Agron, Yangling 712100, Shaanxi, Peoples R China; 6.Univ Oklahoma, Ctr Spatial Anal, Dept Microbiol & Plant Biol, Norman, OK 73019 USA |
推荐引用方式 GB/T 7714 | Zhao, F. Z.,Ren, C. J.,Han, X. H.,et al. Changes of soil microbial and enzyme activities are linked to soil C, N and P stoichiometry in afforested ecosystems[J]. FOREST ECOLOGY AND MANAGEMENT,2018,427:289-295. |
APA | Zhao, F. Z.,Ren, C. J.,Han, X. H.,Yang, G. H.,Wang, J.,&Doughty, R..(2018).Changes of soil microbial and enzyme activities are linked to soil C, N and P stoichiometry in afforested ecosystems.FOREST ECOLOGY AND MANAGEMENT,427,289-295. |
MLA | Zhao, F. Z.,et al."Changes of soil microbial and enzyme activities are linked to soil C, N and P stoichiometry in afforested ecosystems".FOREST ECOLOGY AND MANAGEMENT 427(2018):289-295. |
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