气候变化领域集成服务门户(CCPortal): Role of coarse woody debris in the carbon cycle of Takayama forest, central Japan

CCPortal

DOI	10.1007/s11284-013-1102-5
	Role of coarse woody debris in the carbon cycle of Takayama forest, central Japan
	Ohtsuka, Toshiyuki; Shizu, Yoko; Hirota, Mitsuru; Yashiro, Yuichiro; Jia Shugang; Iimura, Yasuo; Koizumi, Hiroshi
通讯作者	Ohtsuka, T (通讯作者)
发表日期	2014
ISSN	0912-3814
EISSN	1440-1703
起始页码	91
结束页码	101
卷号	29 期号:1
英文摘要	Coarse woody debris (CWD) is an important component of the forest carbon cycle, acting as a carbon pool and a source of CO2 in temperate forest ecosystems. We used a soda-lime closed-chamber method to measure CO2 efflux from downed CWD (diameter a parts per thousand yen5 cm) and to examine CWD respiration (R (CWD)) under field conditions over 1 year in a temperate secondary pioneer forest in Takayama forest. We also investigated tree mortality (input to the CWD pool) from the data obtained from the annual tree census, which commenced in 2000. We developed an exponential function of temperature to predict R (CWD) in each decay class (R (2) = 0.81-0.97). The sensitivity of R (CWD) to changing temperature, expressed as Q (10), ranged from 2.12 to 2.92 and was relatively high in decay class III. Annual C flux from CWD (F (CWD)) was extrapolated using continuous air temperature measurements and CWD necromass pools in the three decay classes. F (CWD) was 3.0 (class I), 17.8 (class II), and 13.7 g C m(-2) year(-1) (class III) and totaled 34 g C m(-2) year(-1) in 2009. Annual input to CWD averaged 77 g C m(-2) year(-1) from 2000 to 2009. The budget of the CWD pool in the Takayama forest, including tree mortality inputs and respiratory outputs, was 0.43 Mg C ha(-1) year(-1) (net C sink) owing to high tree mortality in the mature pioneer forest. The potential CWD sink is important for the carbon cycle in temperate successional forests.
关键词	NET ECOSYSTEM PRODUCTION BROAD-LEAVED FOREST DECIDUOUS FOREST SOIL RESPIRATION TEMPERATE FOREST SODA LIME LONG-TERM CO2 FLUX GROWTH BUDGET
英文关键词	AsiaFlux network; CO2 efflux; CWD; Net ecosystem production; Soda-lime
语种	英语
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Ecology
WOS记录号	WOS:000330641500009
来源期刊	ECOLOGICAL RESEARCH
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/258357
推荐引用方式 GB/T 7714	Ohtsuka, Toshiyuki,Shizu, Yoko,Hirota, Mitsuru,et al. Role of coarse woody debris in the carbon cycle of Takayama forest, central Japan[J]. 中国科学院青藏高原研究所,2014,29(1).
APA	Ohtsuka, Toshiyuki.,Shizu, Yoko.,Hirota, Mitsuru.,Yashiro, Yuichiro.,Jia Shugang.,...&Koizumi, Hiroshi.(2014).Role of coarse woody debris in the carbon cycle of Takayama forest, central Japan.ECOLOGICAL RESEARCH,29(1).
MLA	Ohtsuka, Toshiyuki,et al."Role of coarse woody debris in the carbon cycle of Takayama forest, central Japan".ECOLOGICAL RESEARCH 29.1(2014).