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Shifts in soil nutrient concentrations and C:N:P stoichiometry during long-term natural vegetation restoration
Ma, Rentian1; Hu, Feinan1,2; Liu, Jingfang1; Wang, Chunli1; Wang, Zilong1; Liu, Gang1,2; Zhao, Shiwei1,2
2020-01-22
Source PublicationPEERJ
ISSN2167-8359
Volume8Pages:20
Corresponding AuthorHu, Feinan(hufn@nwafu.edu.cn) ; Zhao, Shiwei(swzhao@nwafu.edu.cn)
AbstractBackground. Ecological stoichiometry (C:N:P ratios) in soil is an important indicator of the elemental balance in ecological interactions and processes. Long-term natural vegetation plays an important role in the accumulation and distribution of soil stoichiometry. However, information about the effects of long-term secondary forest succession on soil stoichiometry along a deep soil profile is still limited. Methods. We selected Ziwuling secondary succession forest developed from farmland as the study area, investigated the concentrations and stoichiometry of soil organic carbon (SOC), total nitrogen (TN), and total phosphorus (TP) at a depth of 0-100 cm along a 90-year succession chronosequence, including farmland (control), grassland, shrub, early forest, and climax forest. Results. SOC and TN concentrations significantly increased with increasing restoration age, whereas soil P concentration remained relatively stable across various successional stages. SOC and TN concentrations decreased with an increase in soil depth, exhibiting distinct soil nutrient "surface-aggregation" (high nutrients concentration in the top soil layer). The soil C:P and N:P ratios increased with an increase in restoration age, whereas the variation of the C:N ratio was small and relatively stable across vegetation succession. The nutrient limitation changed along with vegetation succession, transitioning from limited N in the earlier successional stages to limited P in the later successional stages. Conclusion. Our results suggest that more nitrogen input should be applied to earlier succession stages, and more phosphorus input should be utilized in later succession stages in order to address limited availability of these elements. In general, natural vegetation restoration was an ecologically beneficial practice for the recovery of degraded soils in this area. The findings of this study strengthen our understanding of the changes of soil nutrient concentration and nutrient limitation after vegetation restoration, and provide a simple guideline for future vegetation restoration and reconstruction efforts on the Loess Plateau.
KeywordVegetation restoration Soil organic carbon Nitrogen Phosphorus Secondary forest
DOI10.7717/peerj.8382
WOS KeywordN-P STOICHIOMETRY ; LAND-USE CHANGE ; LOESS PLATEAU ; FOREST SUCCESSION ; CARBON STORAGE ; PLANT ; NITROGEN ; PHOSPHORUS ; AFFORESTATION ; LIMITATION
Indexed BySCI
Language英语
Funding ProjectNational Key R&D Program of China[2016YFE0202900] ; Fundamental Research Funds for the Central Universities[2452019078] ; National Natural Science Foundation of China[41601236] ; National Natural Science Foundation of China[41761144060]
Funding OrganizationNational Key R&D Program of China ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China
WOS Research AreaScience & Technology - Other Topics
WOS SubjectMultidisciplinary Sciences
WOS IDWOS:000509465300007
PublisherPEERJ INC
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/131531
Collection中国科学院地理科学与资源研究所
Corresponding AuthorHu, Feinan; Zhao, Shiwei
Affiliation1.Northwest A&F Univ, Coll Nat Resources & Environm, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling, Shaanxi, Peoples R China
2.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling, Shaanxi, Peoples R China
Recommended Citation
GB/T 7714
Ma, Rentian,Hu, Feinan,Liu, Jingfang,et al. Shifts in soil nutrient concentrations and C:N:P stoichiometry during long-term natural vegetation restoration[J]. PEERJ,2020,8:20.
APA Ma, Rentian.,Hu, Feinan.,Liu, Jingfang.,Wang, Chunli.,Wang, Zilong.,...&Zhao, Shiwei.(2020).Shifts in soil nutrient concentrations and C:N:P stoichiometry during long-term natural vegetation restoration.PEERJ,8,20.
MLA Ma, Rentian,et al."Shifts in soil nutrient concentrations and C:N:P stoichiometry during long-term natural vegetation restoration".PEERJ 8(2020):20.
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