Different plant covers change soil respiration and its sources in subtropics
- 319 Downloads
Heterotrophic soil respiration (R H) and autotrophic soil respiration (R A) by a trenching method were monitored in four vegetation types in subtropical China from November 2011 to October 2012. The four vegetation types included a shrubland, a mixed-conifer, a mixed-legume, and a mixed-native species. The average R H was significantly greater in soils under the mixed-legume and the mixed-native species than in the shrubland and the mixed-conifer soils, and it affected the pattern of soil total respiration (R S) of the four soils. The change in R H was closely related to the variations of soil organic C, total N and P content, and microbial biomass C. The R A and the percentage of R S respired as R A were only significantly increased by the mixed-native species after reforestation. Probably, this depended on the highest fine root biomass of mixed-native species than the other vegetation types. Soil respiration sources were differently influenced by the reforestation due to different changes in soil chemical and biological properties and root biomass.
KeywordsAutotrophic respiration Heterotrophic respiration Reforestation Root trenching
This study was financially supported by the National Natural Science Foundation of China (Grant Numbers 31670487, 31400382, 41430529, and 31570482) and the South China Botanical Garden Fund (201515).
- Bremmer JM, Mulvaney CS (1982) Nitrogen-total. In: Page AL, Miller RH, Keeney DR (eds) Methods of soil analysis. Part 2. Chemical and microbiological properties, 2nd edn. American Society of Agronomy, Madison, WI, pp 595–624Google Scholar
- Chapin FS, Matson PA, Mooney HA (2002) Principles of terrestrial ecosystem ecology. Springer Verlag, New YorkGoogle Scholar
- R Core Team (2014) R: a language and environment for statistical computing. R Foundation for Statistical Computing, ViennaGoogle Scholar
- Espírito-Santo FDB, Gloor M, Keller M, Malhi Y, Saatchi S, Nelson B, Junior RCO, Pereira C, Lloyd J, Frolking S, Palace M, Shimabukuro YE, Duarte V, Mendoza AM, López-González G, Baker TR, Feldpausch TR, Brienen RJW, Asner GP, Boyd DS, Phillips OL (2014) Size and frequency of natural forest disturbances and the Amazon forest carbon balance. Nat Commun 5:3434PubMedPubMedCentralGoogle Scholar
- IUSS Working Group WRB (2015) World reference base for soil resources 2014, update 2015 International soil classification system for naming soils and creating legends for soil maps. World Soil Resources Reports No. 106. FAO, RomeGoogle Scholar
- Li YL, Peng SL, Zhao P, Ren H, Li ZA (2002) A study on the soil carbon storage of some land use types in Heshan, Guangdong, China. J Mountain Sci 20:548–552Google Scholar
- Nelson DW, Sommers LE (1996) Chapter 34, Total carbon, organic carbon and organic matter. In: Sparks DL (ed) Methods of soil analysis. Part 3.Chemical methods. SSSA and ASA, Madison, WI, pp 961–1010Google Scholar
- SFA (State Forestry Administration) (2005) The sixth national forest resources inventory and the status of forest resources. Green China 2:11–12Google Scholar
- Yu SQ, Wang XL, Lin YB, Rao XQ, Fu SL, Zhou LX (2015) Soil respiration and its seasonal variation among five young plantations in South China. J Trop Subtrop Bot 23:176–182Google Scholar
- Zeng X, Cai X, Zhao P, Rao XQ, Zou B, Zhou LX, Lin YB, Fu SL (2008) Biomass and net primary productivity of three plantation communities in hilly land of lower subtropical China. J Beijing Forest Univ 30:148–152Google Scholar