水土保持研究2011，Vol.18Issue(5)：132-138,143,8.
淮北平原农林复合生态系统非生长季CO2通量变化特征
CO_2 Flux of an Agroforestry Ecosystem in Non-growing Seasons in Huaibei Plain
摘要
Abstract
The research of the vorticity flux variation of the polar plantation in the non-growing season in Xiping,He＇nan Province was carried out.The research method was to use the OPEC to monitor the CO2 flux of the agroforestry ecosystem in non-growing season in Huaibei Plain,and calculate out the flux data by using the high frequency data in 10 Hz.The results showed that：（1） the ecosystem CO2 flux changed obviously at the scale of day and reason,which daytime displays on the entire growth season was the carbon absorption in the date criterion,however,carbon sequestration was performed obviously in fall end and early spring at the reason scale;（2）by comparing the ecosystem CO2 flux and soil respiration rate,respiration rate found in the soil ecosystem carbon flux is less important than its contribution to plant;（3）the correlation between the soil temperature in the 5 cm soil layer and soil respiration of days and daily interpersonal relationship was significant,though it is not very remarkable with the ecosystem CO2 flux correlational dependence;（4）the correlation between the soil water content in the 5 cm soil and the soil respiration rate was significantly in one day,and it was not significant at the daily scale,and the correlation between the soil water content in the 5 cm soil and the ecosystem CO2 flux was not significant either;（5）the ecosystem carbon sequestration showed an increasing trend after the rainfall and the complex precipitation process,just like sleet;but the carbon emission had the enhancement tendency after the snow and foggy.关键词
淮北平原农林复合生态系统/CO2通量/土壤呼吸/降水影响Key words
agroforestry ecosystem in Huaibei Plain/CO2 flux/soil respiration/effect of rainfall分类
农业科技引用本文复制引用
李新玉,耿绍波,赵淑琴,佟志彬,王晶,张俊英..淮北平原农林复合生态系统非生长季CO2通量变化特征[J].水土保持研究,2011,18(5):132-138,143,8.基金项目
林业公益性行业科研专项“华北平原杨树人工林碳通量测算技术研究（200804013）” （）
