![Changes of natural ^1^3C abundance in microbial biomass during litter decomposition [An article from: Applied Soil Ecology]](https://www.ebooknetworking.net/books/B00/0RR/bigB000RR9RE6.jpg)
Changes of natural ^1^3C abundance in microbial biomass during litter decomposition [An article from: Applied Soil Ecology]
Book Details
PublisherElsevier
ISBN / ASINB000RR9RE6
ISBN-13978B000RR9RE5
AvailabilityAvailable for download now
Sales Rank99,999,999
MarketplaceUnited States 🇺🇸
Description
This digital document is a journal article from Applied Soil Ecology, published by Elsevier in 2006. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.
Description:
The carbon (C) isotopic composition of soil microbial biomass (SMB) was measured in litter-amended and control plots located at three different elevations (280-2210m, sea level) during the decomposition of plant litter (Vicia villosa) added to upland soils in southwest China. Fourteen months around the addition of litter, soil microbial biomass carbon (SMBC) was followed during experiments. Results showed that SMBC was significantly higher in the litter-amended plots than the controls at the two lowest but not the highest elevation and there was no corresponding difference in microbial @d^1^3C values at the same time. However, microbial @d^1^3C values at the two lowest sites were significantly higher in the litter-amended plots immediately following the peak of microbial C. The @d^1^3C value of SMBC in litter-amended plot was higher than that in control plot, indicating that the degree of microbial decomposition and quality of plant litter will effect on shift of @d^1^3C values of SMBC, which may be mainly caused by microbial selective utilization of organic compounds. The sequence of magnitude of @d^1^3C value of SMBC was consistent with that of soil organic carbon (SOC) among three experiment sites, indicating that the @d^1^3C value of SMBC reflects gross changes in the @d^1^3C value of SOC in the corresponding samples.
Description:
The carbon (C) isotopic composition of soil microbial biomass (SMB) was measured in litter-amended and control plots located at three different elevations (280-2210m, sea level) during the decomposition of plant litter (Vicia villosa) added to upland soils in southwest China. Fourteen months around the addition of litter, soil microbial biomass carbon (SMBC) was followed during experiments. Results showed that SMBC was significantly higher in the litter-amended plots than the controls at the two lowest but not the highest elevation and there was no corresponding difference in microbial @d^1^3C values at the same time. However, microbial @d^1^3C values at the two lowest sites were significantly higher in the litter-amended plots immediately following the peak of microbial C. The @d^1^3C value of SMBC in litter-amended plot was higher than that in control plot, indicating that the degree of microbial decomposition and quality of plant litter will effect on shift of @d^1^3C values of SMBC, which may be mainly caused by microbial selective utilization of organic compounds. The sequence of magnitude of @d^1^3C value of SMBC was consistent with that of soil organic carbon (SOC) among three experiment sites, indicating that the @d^1^3C value of SMBC reflects gross changes in the @d^1^3C value of SOC in the corresponding samples.
