The Korean Journal of Ecology
- Volume 16 Issue 3
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- Pages.353-364
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- 1993
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- 1225-0317(pISSN)
Water Status and Photosynthetic Activities of Evergreen Broad-leaved Trees in Dadohae National Marine Park
다도해 해상 국립공원 상록활엽수의 수분상태와 광합성능
- Ihm, Byung-Sun (Dept. of Biology,Mokpo National University) ;
- Gae-Hong Suh (Dept. of Biology, Daegu University) ;
- Jeom-Sook Lee (Dept. of Biology, Kunsan National University)
- Published : 1993.06.01
Abstract
To elucidate ecophysiological factors affecting nutural distribution of evergreen broad-leabed trees in Danohad National Marine Park, water potential, relative water content and photosynthetic activities of 4 species, Cammellia japonica, Machilus thunbergii, Castanopsis cuspidata var.sieboldii and Quercus acuta, were potential began to decrease from 07:00h to its minimum value at 13:00h for C. cuspidata var. sieboldii (-14.3bar) and Q. acuta (-19.4bar) at 16:00 h for M. thunbergii(-17.0bar) and at 19:00 h for C. japonica (-14.5bar), and these showed similar trends to relative water content. Photosynthetic activities of 4 species began to increase from 7:00 h and reached maximum values before their minimum values of water potential occureed. Optimum temperature renges of photosynthetic activities was
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