Relationship between structural diversity and carbon stocks in humid and sub-humid tropical forest of Mexico

被引：8
作者：
Martinez-Sanchez, Jose L. [1 ]
Tigar, Barbara J. [2 ]
Camara, Luisa [1 ]
Castillo, Ofelia [1 ]
机构：
[1] Univ Juarez Autonoma Tabasco, Div Acad Ciencias Biol, Av Univ S-N, Villahermosa 86200, Tab, Mexico
[2] Liverpool Hope Univ, Sch Hlth Sci, Hope Pk, Liverpool LD16 9JD, Merseyside, England
来源：
ECOSCIENCE | 2015年 / 22卷 / 2-4期
关键词：
Above-ground biomass; arboreal community; global warming; natural regeneration; indexes; forest structure; NEW-BRUNSWICK; BIOMASS; PRODUCTIVITY; VEGETATION; STANDS;
D O I：
10.1080/11956860.2016.1169384
中图分类号：
Q14 [生态学（生物生态学）];
学科分类号：
071012 ; 0713 ;
摘要：
Two structural-diversity and two biodiversity indexes and carbon stocks were determined at eight humid and sub-humid tropical forest sites 20-120 years old in southeastern Mexico. All trees > 10 cm at diameter breast height were measured and species identified in 131 randomly located plots. The number of species (S), Shannon (H'), biomass-species (BS) and abundance-biomass-species (ABS) indexes were related to Mg C ha(-1) and the age of the sites. Values were: S, 27-109; H', 3.9-5.31; BS, 7.39-16.0; ABS, 9.87-18.2; Mg C ha(-1), 39.7-130.7. The relationships between BS and ABS to carbon and the site age were linear and positive, showing that stand structure directly influenced carbon storage. The relationship between site age and carbon was remarkably high (R-2 = 0.79). Humid forests showed higher values of carbon than sub-humid forests (104.4 vs. 70.6, t = 2.07, p = 0.04) but their structural diversity was similar (BS, 11.25 vs. 8.3, p = 0.134; ABS, 13.9 vs. 10.6, p = 0.135). It is concluded that forestry management of tree diameter may be a factor that can favor more carbon storage in secondary forest regrowth as it starts to reach maturity.
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页码：125 / 131
页数：7
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