不同年龄橡胶树枯落物碳归还量及年释放量比较

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Abstract

Choosing the rubber tree PR 107 as the subject, we conducted one-year observation on Dafeng Farm of Li and Miao Autonomous County in the central part of Hainan Province. The observation, in different months, researched into the quantity of fallen branches and leaves and the quantity of carbon returned from the litters of the rubber trees of five different age groups (8-24a). The results showed that the difference between the carbon content of each organ of the litters collected in 8a, 12a, 15a, 19a, and 24a rubber plantation was not distinct. The annual returned carbon content of the litters of 8a, 12a, 15a, 19a and 24a rubber plantation was 2.41, 2.48, 2.85, 3.56 and 3.79 t/hm², respectively. As the age of the tree increased, the annual returned carbon content of the litters increased. The annual carbon emission of litters in the research area was 12, 0.21, 0.27, 0.19 and 0.27 t/hm² at each tree age. As the age of the tree increased, the carbon emission of litters showed an increasing tendency.

Key words： Carbon storage rubber trees tree age

Received: 25 December 2012

:	s794.1
	s718.55

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	Articles by authors
	MIAO Xiao-le
	JIANG Ju-sheng
	WANG Chun-yan
	PENG Zong-bo
	LI Jian-hua
	CUI Zhi-fu

Cite this article:

MIAO Xiao-le,JIANG Ju-sheng,WANG Chun-yan, et al. Comparison of annual returned carbon content of litters and annual carbon emission of the rubber trees of different ages[J]. , 2012, 31(6): 625-630.

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http://www.ecolsci.com/EN/ OR http://www.ecolsci.com/EN/Y2012/V31/I6/625

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