The Effects of Rain Pulse on Soil Respiration

机译：降雨脉冲对土壤呼吸的影响

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The paper introduces a simple method to measure the transient respiration responses of forest soil to rain pulses under laboratory conditions. The measurement system is composed of a sprinkler,closed static chamber Li-6400 portable photosynthesis system (Li-COR Inc.,Lincoln,Nebraska,USA) and the connecting conduits. We collected soil samples In the floor of broad-leaved/Korean pine forest in Changbai Mountain and measured soil respiration rate with this system. The transient respiration responses of the soil samples with different soil water contents to three rainfall treatments were tested The results showed that there were a rapid increase of soil respiration and a subsequent decline after reaching a maximum following rain pulse. Soil respiration rates after rain pulses were 2-6 times higher than that before the rain event. Errors of soil respiration rates caused by the measurement system were also discussed.

机译：本文介绍了一种在实验室条件下测量森林土壤对降雨脉冲的瞬态呼吸响应的简单方法。该测量系统由一个喷头，一个封闭的静态室Li-6400便携式光合作用系统（美国内布拉斯加州林肯的Li-COR Inc.）和连接导管组成。我们在长白山阔叶/红松林地板上采集了土壤样品，并使用该系统测量了土壤呼吸速率。测试了不同土壤含水量的土壤样品对三种降雨处理的瞬时呼吸响应。结果表明，在降雨脉冲达到最大值之后，土壤呼吸迅速增加，随后下降。降雨后的土壤呼吸速率比降雨前高2-6倍。还讨论了由测量系统引起的土壤呼吸速率的误差。

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《International conference on future computer, control and communication;FCCC 2010》|2010年|p.318-323|共6页
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Zhang Xiaojing; Guan Dexin; Wu Jiabing; Wang Anzhi; Yuan Fenghui; Jin Changjie;
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中图分类计算技术、计算机技术;计算技术、计算机技术;
关键词
chamber method1; rain pulse2; soil respiration3; soil water content4;

机译：室法1;雨脉冲2;土壤呼吸3;土壤含水量4;

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The Effects of Rain Pulse on Soil Respiration

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