Carbon Storage in a Eucalyptus Plantation Chronosequence in Southern China

被引：53

作者：

Du, Hu ^{[1
,2
]}

Zeng, Fuping ^{[1
,2
]}

Peng, Wanxia ^{[1
,2
]}

Wang, Kelin ^{[1
,2
]}

Zhang, Hao ^{[1
,2
]}

Liu, Lu ^{[1
,2
]}

Song, Tongqing ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Inst Subtrop Agr, Lab Agroecol Proc Subtrop Reg, Changsha 410125, Hunan, Peoples R China

[2] Chinese Acad Sci, Huanjiang Expt Stn Karst Ecosyst, Huanjiang 547100, Peoples R China

来源：

FORESTS | 2015年 / 6卷 / 06期

基金：

中国国家自然科学基金;

关键词：

biomass; carbon allocation; Eucalyptus plantation; southern China; stand age; FINE-ROOT BIOMASS; BELOW-GROUND BIOMASS; SOIL ORGANIC-CARBON; AGRICULTURAL LANDSCAPES; NITROGEN ACCUMULATION; FOREST ECOSYSTEMS; NORWAY SPRUCE; AGE-SEQUENCE; MIXED STANDS; SEQUESTRATION;

D O I：

10.3390/f6061763

中图分类号：

S7 [林业];

学科分类号：

0829 ; 0907 ;

摘要：

Patterns of carbon (C) allocation across different stages of stand development in Eucalyptus urophylla x E. grandis plantations are not well understood. In this study, we examined biomass and mineral soil C content in five development stages (1, 2, 3, 4-5, and 6-8 years old) of a Eucalyptus stand in southern China. The tree biomass C pool increased with stand age and showed a high annual rate of accumulation. Stems accounted for the highest proportion of biomass C sequestered. The C pool in mineral soil increased initially after afforestation and then declined gradually, with C density decreasing with soil depth. The upper 50 cm of soil contained the majority (57%-68%) of sequestered C. The other biomass components (shrubs, herbaceous plants, litter, and fine roots) accounted for <5% of the total ecosystem C pool. Total C pools in the Eucalyptus plantation ecosystem were 112.9, 172.5, 203.8, 161.1, and 162.7 Mg ha(-1) in the five developmental stages, respectively, with most of the C sequestered below ground. We conclude that Eucalyptus plantations have considerable biomass C sequestration potential during stand development.

引用

页码：1763 / 1778

页数：16

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