Effects of Pb and CO2？on the Growth of Pinus densiflora Seedlings

This work was investigated the effects of the elevated CO2 and Pb contamination on the growthof Pinus densiflora. Two-years pine trees were planted in Pb-contaminated soils (500 mg/kg-soil) and uncontaminated soils, and cultivated for 3 months in the growth chamber where CO2 concentration was controlled at 380 or 760 ppmv. The growth of P. densiflora were comparatively analyzed in 4 kinds of soil samples (CA : CO2 380 ppmv + Pb 0 mg/kg, CB : CO2 380 ppmv + Pb 500 mg/kg, EA : CO 2 760 ppmv + Pb 0 mg/kg, EB : CO2 760 ppmv + Pb 500 mg/kg). It was measured the growth changes of the P. densiflora caused by CO 2 concentration and Pb contamination. The growth of P. densiflora was remarkably inhibited in the Pb-contaminated soil, although the biomass and the root elongations were not significantly affected by the elevated CO2. These results suggested that the growth of P. densiflora was sensitively influenced by Pb contamination rather than CO2 concentration. Compared to the initial soil, total Pb concentration in the soil samples was decreased at 760 ppmv CO 2 as well as at 380 ppmv CO 2 after 3 months. The accumulation of Pb in the roots at 760 ppmv CO2 was two-fold of that at 380 ppmv CO2, indicating that Pb bioavailability in the root of P. densiflora might be affected by the elevated CO2.

keywords: Eelevated CO2, Growth inhibition, Lead, Pinus desiflora김성현 등 J. Ecol. Field Biol. 29 (6) 560bioindicator로 널리 연구되어 왔다 (Grodzinska and Kazmierczakowa 1977, Yilmaz 2002). 일반적으로 식물체 내에서 납은 거의 이동하지 않으며, 대부분의 식물은 보통 0.5～3 ppm의 납을 함유하고 있는데, 저오염 현장에서 P. syl, Eelevated CO2, Growth inhibition, Lead, Pinus desiflora김성현 등 J. Ecol. Field Biol. 29 (6) 560bioindicator로 널리 연구되어 왔다 (Grodzinska and Kazmierczakowa 1977, Yilmaz 2002). 일반적으로 식물체 내에서 납은 거의 이동하지 않으며, 대부분의 식물은 보통 0.5～3 ppm의 납을 함유하고 있는데, 저오염 현장에서 P. syl

Reference

(2002) 카드뮴 오염 토양에 Phytoremediation의 적용 가능성 연구,

(2003) 환경변화와 수목의 생리적 특성 수목진단 및 방제기술 IV , 강원대학교 산림과학연구소 수목진단센터

(2003) 식물계절에 나타난 한반도 기후변화 영향,

(2001) 토양 중 중금속 거동에 대한 휴믹산과 인산염의 영향,

(2005) 토양측정망 및 실태조사,

(2000) 토양측정망 운영결과,

(1974) Che-mical analysis of ecological materials,

(1999) Improving metal-hype-raccumulators wild plants to develop commercial phytoreme-diation systems, CRC Press

(1998) A metal analysis of elevated CO2 effects on wody plant mass,form, and physiology,

10.

(1995) Handbook of Ecotoxicology.,

11.

(1999) Net primary production of a forest ecosystem with ex-perimental CO2 enrichment,

12.

(1994) The global carbon cycle:a viewpoint on the missing sink, 1-15

13.

(2000) The effects of elevated [CO2] on the C:N and C:P mass ratios of plant tissues.,

14.

(1982) Correlation betwen content of copper lead and cadmium in the soil and the content of these metals in the seedlings of selected forest tree species, zinc

15.

(1977) Heavy metal content in the plants of Cracow parks,

16.

(1974180-182) Plant uptake of cadmium as influenced by cation exchange capacity, zinc and soil temperature

17.

(1994) Solution culture hydroponics:History and inex-pensive equipment, 111-118

18.

(1997) The effects of plant composition and diversity on ecosystem process,

19.

(1999) Biochemical responses and altered genetic expres-sion patterns in ponderosa Pine(Pinus ponderosa Doug ex P.Laws) Grown under Elevated CO2. ,

20.

(2001) Supercritical fluid extraction of Vernonia galmensis seeds,

21.

(1972) Hg and Cd as contaminants Micronutrients in agri-culture Soil Science Society of America J Madison pp 593- 636,

22.

(2004) Deriving soil critical limits for Cu a method based on free ion concentrations,

23.

(1990) Effects on ecosystems, Cambridge University Press

24.

(2001) Effects of six years of atmospheric CO2 enrichment on plant Soil and soil microbial C of a calcareous grasland,

25.

(2001) Interactive effects of CO2 and O3 on a ponderosa pine plant/litter/soil mesocosm,

26.

(1999) Lead resistance in two bacterial isolates from heavy,

바로가기메뉴

Article Contents

Vol.29 No.6

Effects of Pb and CO2？on the Growth of Pinus densiflora Seedlings

Abstract

Reference

Journal of Ecology and Environment