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Web URL(s): | http://img.kisti.re.kr/soc_img/society//tsk/JDHHBF/1995/v9n4/JDHHBF_1995_v9n4_285.pdf Last checked: 01/28/2013 Requires: PDF Reader |
Publication Type:
| Refereed |
Author(s): | Chang, Nam-Kee;
Kim, Jung-Seok;
Shim, Kue-Cheol;
Kang, Kyoung-Mi |
Author Affiliation: | Department of Biology, College of Education, Seoul National University |
Title: | The energy flow of mineral cycles in a Zoysia japonica and a Miscanthus sinensis ecosystem on Mt. Kwanak: 5. The cycles of potassium |
Source: | Korean Journal of Turfgrass Science. Vol. 9, No. 4, 1995, p. 285-292[452-459]. |
Publishing Information: | Korea: Turfgrass Society of Korea |
# of Pages: | 8 |
Keywords: | TIC Keywords: Potassium cycling; Zoysia Japonica; Miscanthus sinensis; Grasslands; Soil properties; Topsoil
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Abstract/Contents: | "To elucidate the mineral cycles of potassium in a dynamic grassland ecosystem in a steady state condition, this investigation was conducted along the northwest side of Mt. Kwanak. The experimental results may be summarized on communities of Z. japonica and M. sinensis as follows. As compared with some properties of the surface soils among two semi-natural grasslands, the levels of exchangeable potassium were high in M. sinensis and low in Z. japonica. Contents of potassium for the litters of Z. japonica and M. sinensis were 1.69% and 2.51%, respectively. The annual production of potassium was 1.32g/m2 in the Z. japonica grassland and 3.08g/m2 in the M. sinensis grassland. For a case of steady production and release, the ratio of annual mineral production to the amount accumulated on top of the mineral soil in a steady state provides estimates of the release constant k. The models of the release, accumulation and annual cycle of potassium in a grassland ecosystem are determined by the equation (1) to (3), respectively (Table 3). Since it requires a period of about each .639/r, 3/r and 5/r years for the release and accumulation of 50, 95 and 99% of its steady-state level, the estimates for potassium in a dynamic grassland ecosystem of Mt. Kwanak were 1.5, 6.6 and 11.0 years in the Z. japonica grassland and were 2.7, 11.9 and 19.8 years in the M. sinensis grassland. The amounts of annual cycles for potassium in a grassland ecosystem under the steady-state conditions were 1.32g/m2 in the Z. japonica grassland and 3.08g/m2 in the M. sinensis grassland." |
Language: | English |
References: | 11 |
See Also: | See also related article "The energy flow of mineral cycles in a Zoysia japonica and a Miscanthus sinensis ecosystem on Mt. Kwanak: 1. The Standing Crop and Production Structure" Korean Journal of Turfgrass Science, 9(2) 1995, p. 101-107[284-290], R=128224 R=128224
See also related article "The energy flow of mineral cycles in a Zoysia japonica and a Miscanthus sinensis ecosystem on Mt. Kwanak: 2. Organic matter synthesis and decomposition balance" Korean Journal of Turfgrass Science, 9(2) 1995, p. 109-117[291-299], R=128229 R=128229
See also related article "The energy flow of mineral cycles in a Zoysia japonica and a Miscanthus sinensis ecosystem on Mt. Kwanak: 3. The cycles of nitrogen" Korean Journal of Turfgrass Science, 9(4) 1995, p. 265-273[433-441], R=128389 R=128389
See also related article "The energy flow of mineral cycles in a Zoysia japonica and a Miscanthus sinensis ecosystem on Mt. Kwanak: 4. The cycles of phosphorus" Korean Journal of Turfgrass Science, 9(4) 1995, p. 275-284[442-451], R=128390 R=128390
See also related article "The energy flow of mineral cycles in a Zoysia japonica and a Miscanthus sinensis ecosystem on Mt. Kwanak: 6. The cycles of Ca, Mg, Na" Korean Journal of Turfgrass Science, 10(2) 1996, p. 105-115[614-624], R=128552 R=128552 |
See Also: | Other items relating to: Potassium |
Note: | Abstract appears in English Tables Graphs |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Chang, N.-K., J.-K. Kim, K.-C. Shim, and K.-M. Kang. 1995. The energy flow of mineral cycles in a Zoysia japonica and a Miscanthus sinensis ecosystem on Mt. Kwanak: 5. The cycles of potassium. (In English, with English abstract.) Korean Journal of Turfgrass Science. 9(4):p. 285-292[452-459]. |
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