秦岭天然油松、锐齿栎林地土壤呼吸与CO2释放

doi:10.11707/j.1001-7488.20030202

Abstract

Abstract:

Soil respiration and its seasonal change of forest of Pinus tabulaeformis and Quercus aliena var.acuteserrata were studied by using the seal respiration tube.The results showed that (1) there were significant correlations between soil respiration rate air temperature or soil temperature,and the correlation of soil respiration rate and soil temperature was better than that of soil respiration rate and air temperature;(2)roots' respiration was calculated by setting a equation of soil respiration and roots biomass;(3)The carbon dioxide released from forest land of Quercus aliena var.acuteserrate was 28.252 t·hm^-2a^-1,of which carbon dioxide released from respiration soil roots and litter layer were about 67.5%,23.81% and 8.69% respectively.The carbon dioxide released from forest land of Pinus tabulaeformis was 22.323 t·hm^-2a^-1,of which carbon dioxide from soil,root and litter layer was 61.01%,31.14% and 31.14% respectively.

Key words: Forest land, Soil respiration, Carbon dioxide

Liu Jianjun;Wang Dexiang;Lei Ruide;Wu Qinxiao. SOIL RESPIRATION AND RELEASE OF CARBON DIOXIDE FROM NATURAL FOREST OF PINUS TABULAEFORMIS AND QUERCUS ALIENA VAR. ACUTESERRATA IN QINLING MOUNTAINS[J]. Scientia Silvae Sinicae, 2003, 39(2): 7-13.

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SOIL RESPIRATION AND RELEASE OF CARBON DIOXIDE FROM NATURAL FOREST OF PINUS TABULAEFORMIS AND QUERCUS ALIENA VAR. ACUTESERRATA IN QINLING MOUNTAINS

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