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中国农学通报

中国农学通报 ›› 2012, Vol. 28 ›› Issue (19): 33-38.doi: 10.11924/j.issn.1000-6850.2012-0469

所属专题： 农业气象

• 林学 园艺 园林 • 上一篇    下一篇

白蚁堆释放温室气体在不同林型中的研究

刘夏末   

  • 收稿日期:2012-02-17 修回日期:2012-05-04 出版日期:2012-07-05 发布日期:2012-07-05

Methane and Carbon Flux of Termite Mound in Different Forest Types

  • Received:2012-02-17 Revised:2012-05-04 Online:2012-07-05 Published:2012-07-05

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摘要：

为了研究土地利用变化后西双版纳地区原始林和橡胶林中白蚁堆释放温室气体的差异，以西双版纳地区的常见白蚁种土垅大白蚁(Macrotermes annandalei)和云南大白蚁(Macrotermes Holmgren)为例，研究其季节性的甲烷和二氧化碳的变化情况。结果表明，甲烷和二氧化碳的释放量在雨季是干季的3.5倍。西双版纳地区大面积的橡胶种植造成土地利用变化，从而造成温室效应。笔者从昆虫对于土地利用变化后对温室效应响应的角度，解释了土地利用变化后温室气体排放量的增加加速了全球变暖。研究中忽略了白蚁堆自身的材料释放的甲烷和二氧化碳的季节性变化。白蚁种群的季节性变化可能是导致白蚁堆甲烷和二氧化碳排放的季节性变化的因素。此结果需要结合白蚁堆本身的气体排放和去除其他影响白蚁堆气体排放的因素来进一步得到证明。土地利用变化后，同种白蚁甲烷的释放量在不同林型中的差异不显著，同种白蚁在不同林型中的二氧化碳释放量显著。土地利用变化后白蚁堆释放气体呈上升趋势。

关键词: 叶绿素荧光, 叶绿素荧光

Abstract:

In order to compare the difference between primary forest and rubber plantation after land use changed, the author took common termite species in Xishuangbanna as example to study the seasonal changes of methane and carbon dioxide. In this study, the Xishuangbanna region of the common termite species Macrotermes soil ridge, for example, the seasonal changes of methane and carbon dioxide, methane and carbon dioxide emissions in the rainy season was 3.5 times than the dry season. A large area of rubber plantations in Xishuangbanna region caused by land use change, caused the greenhouse effect. From insects to land use change on greenhouse response point of view to explain the increase in greenhouse gas emissions after land use change had accelerated global warming. The study ignored the seasonal variation of the release of methane and carbon dioxide in termite heap materials. The results showed that seasonal changes in the termite population may lead to the seasonal changes of the termite heap of methane and carbon dioxide emissions factors. This result required a combination of the termite mound gas emissions and removal of other factors that affected the termite heap gas emissions to be proved.