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Position: Home > Articles > The preliminary study on CO_2 flux variation characteristics of alfalfa growth stages in Songnen plain Grassland and Prataculture 2018 (4) 59-61

松嫩平原苜蓿生长期CO_2通量日变化特征的初步研究

作  者:
尤海洋;高海娟;刘泽东
单  位:
黑龙江省畜牧研究所
关键词:
苜蓿草地;CO2通量
摘  要:
本研究以松嫩平原西部人工苜蓿草地为研究对象,利用静态箱法和气相色谱法进行田间CO_2通量观测,同时对地表温度和气温进行观察记载。结果表明:松嫩平原西部人工苜蓿草地在每个物候期CO_2日通量都为负值,说明苜蓿草地从外界吸收CO_2,在生长期起到了碳汇的作用;CO_2通量与气温之间具有显著正相关,而与地表温度没有明显相关性。
译  名:
The preliminary study on CO_2 flux variation characteristics of alfalfa growth stages in Songnen plain
作  者:
You Haiyang;Gao Haijuan;Liu Zedong;Institute of Animal Science of Heilongjiang Province;
单  位:
You Haiyang%Gao Haijuan%Liu Zedong%Institute of Animal Science of Heilongjiang Province
关键词:
alfalfa;;CO2 flux
摘  要:
In this study we focus on the artificial alfalfa grassland in the western Songnen Plain,and CO_2 flux of the field was observed by using static box and gas phase chromatography,at the same time the temperature of land surface and air were both recorded.The results showed that the CO_2 flux of each phenological phase in the artificial alfalfa grassland was negative value,which indicated that the alfalfa grassland played a role in carbon sinks through absorbing CO_2 from the outside during the growth period.There was a significant positive correlation between CO_2 flux and gas temperature,but no significant correlation with land surface temperature.

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