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한반도 중부지역 조림지 소나무와 곰솔의 장기적 낙엽 분해율 및 분해과정에 따른 영양염류 동태변화

The long-term decay rate and nutrient dynamics during leaf litter decomposition of Pinus densiflora and Pinus thunbergii

이영상|원호연|조수언|이일환
한국환경생물학회 (Korean Society Of Environmental Biology)|2021.09|환경생물 (Korean Journal of Environmental Biology)|제39권 제3호|pp. 374-382

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참고문헌

키워드

C/N ratioC/P ratio decay constantlong term ecological researchremaining weight

초록

공주지역에 조림된 리기다소나무 군락에서 국내 대표 수종인 소나무와 방풍림으로 주로 조림되는 곰솔 낙엽의 분해율 및 분해과정에 따른 영양염류의 함량 변화를 파악하였다. 분해 60개월 경과 후 소나무 낙엽과 곰솔 낙엽의 잔존율은 각각 42.12±5.30과 24.79±1.98%로 소나무와 곰솔의 낙엽 분해율은 곰솔 낙엽의 분해가 소나무 낙엽의 분해에 비해 빠르게 일어났다. 60개월 경과 후 소나무 낙엽과 곰솔 낙엽의 분해상수 (k)는 각각 3.02과 3.59로 곰솔 낙엽의 분해상수가 다소 높게 나타났다. 소나무 낙엽의 분해과정에 따른 C/N, C/P 비율은 초기에 각각 14.4, 144.1이었으나 60개월 경과 후에는 각각 2.26와 40.1로 점차 감소하였으며, 곰솔 낙엽의 경우 초기 C/N, C/P 비율은 각각 14.4와 111.3로 나타났고, 60개월 경과 후에는 각각 3.06와 45.8로 나타났다. 낙엽의 초기 N, P, K, Ca, Mg 함량은 소나무 낙엽에서 각각 3.07, 0.31, 1.51, 16.56, 2.03 mg g-1, 곰솔 낙엽에서 각각 3.02, 0.39, 0.99, 19.55, 1.48 mg g-1로 소나무 낙엽과 곰솔 낙엽의 질소와 인의 함량은 유사하였다. 60개월 경과 후 N, P, K, Ca, Mg의 잔존율은 소나무 낙엽에서 각각 231.08, 130.13, 35.68, 48.58, 36.03%이었고, 곰솔 낙엽에서 각각 143.91, 74.02, 28.59, 45.08, 44.99%로 나타났다.

Abstract

In the present study, we analyzed the decay rate and nutrient dynamics during leaf litter decomposition of Pinus densiflora and Pinus thunbergii in Gongju for 60 months, from 2014 to 2019. P. thunbergii leaf litter decomposed faster than that of P. densiflora. The decay constant of P. densiflora and P. thunbergii leaf litter after 60 months was 3.02 and 3.59, respectively. The initial C/N ratio of P. densiflora and P. thunbergii leaf litter were 14.4 and 14.5, respectively. After 60 months, C/N ratio of decomposing P. densiflora and P. thunbergii leaf litter decreased to 2.26 and 3.0, respectively. The initial C/P ratio of P. densiflora and P. thunbergii leaf litter were 144.1 and 111.3. After 60 months elapsed, the C/P ratio of decomposing P. densiflora and P. thunbergii leaf litter decreased to 40.1 and 45.8, respectively. After 60 months, the percentage of the remaining N, P, K, Ca, and Mg in decomposing P. densiflora leaf litter was 231.08, 130.13, 35.68, 48.58, and 36.03%, respectively. After 60 months, the percentage of the remaining N, P, K, Ca, and Mg in decomposing P. thunbergii leaf litter was 143.91, 74.02, 28.59, 45.08, and 44.99%, respectively. The findings of the present study provide an insight into the forest ecosystem function of coniferous forests through the analysis of the amount of nutrient transfer into the soil through a long-term decomposition process; this information is intended to be used as basic data for preparing counter measures for future climate and ecosystem changes.

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관련 논문AI추천

Weight Loss and Nutrient Dynamics during Leaf Litter Decomposition of Quercus variabilis and Pinus densiflora at Mt. Worak National Park남궁정, 문형태, 한아름한국생태학회 · Journal of Ecology and Environment2008 · 제31권 제4호공주와 진주지역에서 상수리나무 낙엽의 분해율 및 분해과정에 따른 영양염류 함량 변화문형태, 오경환, 원호연한국습지학회 · 한국습지학회지2012 · 제14권 제4호The Decomposition of Leaf Litters of Some Tree Species in Temperate Deciduous Forest in KoreaⅡ. Changes in Nutrient Content During Litter Decomposition심재국, Yang,Keum-Chul한국생태학회 · Journal of Ecology and Environment2003 · 제26권 제6호Basal area effects on a short-term nutrient status of litter fall and needle litter decomposition in a Pinus densiflora stand김춘식한국생태학회 · Journal of Ecology and Environment2016 · 제39권 제1호Weight Loss and Nutrient Dynamics during Leaf Litter Decomposition of Quercus mongolica in Mt. Worak National Park문형태한국생태학회 · Journal of Ecology and Environment2009 · 제32권 제2호상수리나무 가지의 분해 및 분해과정에 따른 영양염류 변화문형태한국생태학회 · Journal of Ecology and Environment2004 · 제27권 제2호

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