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| Web URL(s): | https://acsess.onlinelibrary.wiley.com/doi/10.2136/sssaj1995.03615995005900030026x
Last checked: 03/01/2024
Access conditions: Item is within a limited-access website
Notes: Abstract only
https://acsess.onlinelibrary.wiley.com/doi/epdf/10.2136/sssaj1995.03615995005900030026x
Last checked: 03/01/2024
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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| Publication Type:
| Refereed |
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| Author(s): | Zhang, Q. L.;
Hendrix, P. F. |
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| Author Affiliation: | Institute of Ecology and Department of Crop and Soil Sciences, University of Georgia, Athens, GA 30602 |
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| Title: | Earthworm (Lumbricus rubbellus and Aprrectodea caliginosa) effects on carbon flux in soil |
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| Source: | Soil Science Society of America Journal. Vol. 59, No. 3, May/June 1995, p. 816-823. |
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| Publishing Information: | Madison, WI: Soil Science Society of America |
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| # of Pages: | 8 |
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| Keywords: | TIC Keywords: Earthworms; Lumbricus rubellus; Aporrectodea caliginosa; Carbon; Soils; Isotopes
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| Abstract/Contents: | "Effects of earthworm activities on litter and soil C flux were studied in a laboratory incubation experiment using two types of isotopic tracers and two earthworms with different ecological strategies-Lumbricus rubellus, an epigeic species, and Aporrectodea caliginosa, an endogeic species. The soil was prelabeled with 14C. Dry sorghum [Sorghum bicolor (L.) Moench] leaves labeled with 13C were applied to the soil surface. Activity of both earthworm species significantly (P<0.001) enhanced total C efflux (479 +- 8 [standard error], 483 +-4, and 395 +- 5 mg C jar-1 for L. rubellus, A. caliginosa, and the control, respectively) and significantly (P<0.05) reduced total surface soil microbial biomass (251.7, 205.2, and 312.1 mg C kg-1 soil for L. rubellus, A. caliginosa, and the control, respectively) during the 30-d incubation. Activity of A. caliginosa also reduced subsurface soil microbial biomass. The epigeic earthworms assimilated significantly more 13C from the litter and significantly less 14C from the soil than the endogeic species. In the absence of earthworms, 14C in the soil was translocated into the surface litter as shown by a 15.5-fold increase in 14C enrichment in the surface litter by the end of the experiment. This translocation of soil C into the litter was significantly reduced by earthworm activities (155.43, 121.11 and 240.58 kBq kg-1 litter for L. rubellus, A. caliginosa, and the control, respectively), possiblly due to disruption by earthworms of fungal-hyphal connections between litter and soil. These interactions between earthworms and soil microbial processes have important implications for soil C turnover." |
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| Language: | English |
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| References: | 50 |
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| Note: | Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Zhang, Q. L., and P. F. Hendrix. 1995. Earthworm (Lumbricus rubbellus and Aprrectodea caliginosa) effects on carbon flux in soil. Soil Sci. Soc. Am. J. 59(3):p. 816-823. |
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| Web URL(s):
https://acsess.onlinelibrary.wiley.com/doi/10.2136/sssaj1995.03615995005900030026x
Last checked: 03/01/2024
Access conditions: Item is within a limited-access website
Notes: Abstract only
https://acsess.onlinelibrary.wiley.com/doi/epdf/10.2136/sssaj1995.03615995005900030026x
Last checked: 03/01/2024
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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MSU catalog number: S 590 .S65 |
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