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한국환경생물학회 / v.27, no.4, 2009년, pp.353-362 
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사문암지대의 중금속 함유 낙엽의 분해에 관한 연구 I. Microcosm 실험
( Studies on the Decomposition of Leaf Litter Containing Heavy Metals in Andong Serpentine Area, Korea I. Microcosm Experiment ) |
| 류새한;김정명;심재국; 중앙대학교 자연과학대학 생명과학과;중앙대학교 자연과학대학 생명과학과;중앙대학교 자연과학대학 생명과학과;
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| 초 록 |
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| This study attempted to compare the litter decomposition rate of Arundinella hirta and Miscanthus sinensis var. purpurascens which collected from serpentine soil acting potentially toxic concentration of heavy metals and non-serpentine soil by using the microcosm method for 192 days under constant humidity and $23^{circ}C$. The contents of Ni, Fe, Mg and Cr in the serpentine and nonserpentine soil originated litter showed high differences between them. The litter samples from serpentine site have lower C/N than non-serpentine litter, but the soluble carbohydrate content was shown almost similar between two plant litter. The mass loss rates of leaf litter from serpentine area were slower than those from non-serpentine site. During the experimental period, the remained dry weight of A. hirta and M. sinensis var. purpurascens litter collected from serpentine site were 64.7%, 65.0% of initial dry weight and litter samples from non-serpentine site showed 54.2%, 50.7%, respectively. K and Na were leached rapidly at the initial decomposition periods, but Ca showed immobilization and other metal elements reserved at the decomposing litter for a long time. The decomposing A. hirta litter from non-serpentine soil showed higher values of $CO_2$ evolution, microbial biomass-C, and microbial biomass-N than those in serpentine soil originated litter acting nutrient stresses and exhibited rapid decay rate. The microbial biomass and microbial respiration of decaying litter were positively correlated with litter decomposition rate, and these relationships showed more rapid slope in non-serpentine soil originated litter than that in serpentine soil. |
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| 키워드 |
| heavy metals;litter decomposition;microbial biomass;microbial respiration;serpentine soil; |
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환경생물 / v.27, no.4, 2009년, pp.353-362
한국환경생물학회
ISSN : 1226-9999
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200920460307084)
언어 : 한국어 |
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| 논문 제공 : KISTI 한국과학기술정보연구원 |
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