| |
DOI: | 10.1016/j.soilbio.2005.05.008 |
Web URL(s): | http://www.sciencedirect.com/science/article/pii/S0038071705002026 Last checked: 05/30/2013 Access conditions: Item is within a limited-access website |
Publication Type:
| Refereed |
Author(s): | Shi, Wei;
Yao, Huaiying;
Bowman, Daniel |
Author Affiliation: | Shi and Yao: Department of Soil Science; Bowman: Department of Crop Science, North Carolina State University, Raleigh, North Carolina |
Title: | Soil microbial biomass, activity, and nitrogen transformations in a turfgrass chronosequesence |
Source: | Soil Biology & Biochemistry. Vol. 38, No. 2, February 2006, p. 311-319. |
Publishing Information: | Pergamon |
# of Pages: | 9 |
Keywords: | TIC Keywords: Microbiological soil analysis; Microbial activity; Nitrogen; Chemical transformation; Biomass; Nitrogen mineralization; Carbon dioxide; Respiration; Nitrification
|
Abstract/Contents: | "Understanding the chronological changes in soil microbial properties of turfgrass ecosystems is important from both the ecological and management perspectives. We examined soil microbial biomass, activity and N transformations in a chronosequence of turfgrass systems (i.e. 1, 6, 23 and 95 yr golf courses) and assessed soil microbial properties in turfgrass systems against those in adjacent native pines. We observed age-associated changes in soil microbial biomass, CO2 respiration, net and gross N mineralization, and nitrification potential. Changes were more evident in soil samples collected from 0 to 5 cm than the 5 to 15 cm soil depth. While microbial biomass, activity and N transformations per unit soil weight were similar between the youngest turfgrass system and the adjacent native pines, microbial biomass C and N were approximately six times greater in the oldest turfgrass system compared to the adjacent native pines. Potential C and N mineralization also increased with turfgrass age and were three to four times greater in the oldest vs. the youngest turfgrass system. However, microbial biomass and potential mineralization per unit soil C or N decreased with turfgrass age. These reductions were accompanied by increases in microbial C and N use efficiency, as indicated by the significant reduction in microbial C quotient (qCO2) and N quotient (qN) in older turfgrass systems. Independent of turfgrass age, microbial biomass N turnover was rapid, averaging approximately 3 weeks. Similarly, net N mineralization was ≅ 12% of gross mineralization regardless of turfgrass age. Our results indicate that soil microbial properties are not negatively affected by long-term management practices in turfgrass systems. A tight coupling between N mineralization and immobilization could be sustained in mature turfgrass systems due to its increased microbial C and N use efficiency." |
Language: | English |
References: | 38 |
Note: | Tables Graphs |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Shi, W., D. Bowman, and H. Yao. 2006. Soil microbial biomass, activity, and nitrogen transformations in a turfgrass chronosequesence. Soil Biol. Biochem. 38(2):p. 311-319. |
| Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=110386 |
| If there are problems with this record, send us feedback about record 110386. |
| Choices for finding the above item: |
| DOI: 10.1016/j.soilbio.2005.05.008 |
| Web URL(s): http://www.sciencedirect.com/science/article/pii/S0038071705002026 Last checked: 05/30/2013 Access conditions: Item is within a limited-access website |
| MSU catalog number: S 590 .S6115 |
| Find from within TIC: Digitally in TIC by record number. |
| Request through your local library's inter-library loan service (bring or send a copy of this TGIF record) |