QUANTIFICATION OF SOIL CO2 EMISSIONS IN TWO FORESTED AREAS UNDER DIFERENT REGENERATION STAGES IN ATLANTIC FOREST

被引：3

作者：

Castellano, Gabriel Ribeiro ^{[1
]}

Moreno, Leandro Xavier ^{[2
]}

Menegario, Amauri Antonio ^{[1
]}

Govone, Jose Silvio ^{[1
]}

Gastmans, Didier ^{[1
]}

机构：

[1] Univ Estadual Paulista, Ctr Estudos Ambientais, Ave 24A,1515, BR-13506 Rio Claro, SP, Brazil

[2] Univ Estadual Paulista, Dept Fis, Inst Geociencias & Ciencias Exatas, Ave 24A,1515, BR-13506 Rio Claro, SP, Brazil

来源：

QUIMICA NOVA | 2017年 / 40卷 / 04期

关键词：

soil CO2 emissions; multiple linear regression; infrared gas analyzer; Atlantic forest; SPATIAL VARIABILITY; TROPICAL FOREST; MICROBIAL ACTIVITY; CARBON-DIOXIDE; RESPIRATION; TEMPERATURE; EFFLUX; FLUX;

D O I：

10.21577/0100-4042.20170036

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In order to quantify emission rates of CO2 through the soil from the Atlantic forest under different regeneration stages, two areas located in Rio Claro(SP) were studied. In the first area the forest is regenerated (Plot 23) and the average CO2 emission is 1.91 mmol m(-2)s(-1), while in the recently planted area (Plot 15), the average emission is 1.38 mmol m(-2) s(-1). The CO2 emissions are fairly correlated to soil moisture (r=0.53, P=<0.0001), C/N ratio (r=0.27, p<0.05) and time of measurement (r=0.33, p<0.05). Multiple linear regression models developed are better to reproduce CO2 soil emissions in recently planted area.

引用

页码：407 / 412

页数：6

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