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인위적인 토양산성화가 잣나무 묘목의 생장 및 영양상태에 미치는 영향
김영채 ( Kim Yeong Chae ),진현오 ( Jin Hyeon O ),최동수 ( Choe Dong Su ),이충화 ( Lee Chung Hwa ),소지효량 ( So Ji Hyo Lyang ) 한국산림과학회 2003 한국산림과학회지 Vol.92 No.6
Three-years-old Pinus koraiensis seedlings transplanted in the artificially acidified forest soils during growing period for 182 days from April 11 to October 9, 2002. That soil was mixed with artificial acid solution at 0, 10, 30, 60 and 90meq H ` per 1L of soil. The result was as following. Some seedlings withered up at 60 and 9OmeqH` treatment after 8 weeks. Seedling growth at control after 182 days was greater than 10, 30, 60, 90meqH` treatment. Also, Relative Growth Rate(RGR) and Net Assimilation Kate(NAR) increased at 10 and 30meqH^(+) treatments comparing to control, but those decreased at 60 and 90meqH` treatments. Leaf Weight Ratio(LWR) did not change by each treatment. There was a significantly positive correlation(r=0.99, ?0.001) between relative total dry weight(TDW) of seedlings and (Ca+Mg+K)/Al molar ratio in soil. When the (Ca+Mg+K)/Al molar ratio was l.0,the TDW decreased about 40%.