选择武汉城区4种不同的水质作为影响因子,通过室内实验,研究武汉城区4种不同水质对雷氏黄萤Luciola leii Fu and Ballantyne幼虫呼吸行为的影响,探讨利用雷氏黄萤幼虫的呼吸指标作为监测多污染源混合废水的可行性。结果表明,Ⅲ类(东湖)...选择武汉城区4种不同的水质作为影响因子,通过室内实验,研究武汉城区4种不同水质对雷氏黄萤Luciola leii Fu and Ballantyne幼虫呼吸行为的影响,探讨利用雷氏黄萤幼虫的呼吸指标作为监测多污染源混合废水的可行性。结果表明,Ⅲ类(东湖)、Ⅳ类(汤逊湖)、Ⅴ类(野芷湖)和劣Ⅴ类(南湖)四类水质与CK相比较,对雷氏黄萤幼虫昼夜的呼吸行为均有影响。雷氏黄萤幼虫刚接触Ⅲ类、Ⅳ类、Ⅴ类和劣Ⅴ类水质均有明显反应。在劣Ⅴ类水质条件下,雷氏黄萤幼虫的呼吸持续时间和呼吸频率(FR)均高于Ⅲ类、Ⅳ类、Ⅴ类水质,呼吸间隔时间(SI)均低于Ⅲ类、Ⅳ类、Ⅴ类水质。提示雷氏黄萤幼虫的昼夜呼吸行为、呼吸持续时间、呼吸频率(FR)、呼吸间隔时间(SI)可作为多污染源混合废水的敏感生物学监测指标。展开更多
Soil respiration(Soil R)is one of the largest CO2fluxes from terrestrial ecosystems to the atmosphere.The largely seasonal and daily patterns of Soil R in semiarid grassland ecosystems indicate that measurement time a...Soil respiration(Soil R)is one of the largest CO2fluxes from terrestrial ecosystems to the atmosphere.The largely seasonal and daily patterns of Soil R in semiarid grassland ecosystems indicate that measurement time and frequency would have significant influences on the assessment of seasonal soil carbon release.Based on a three-year continuous measurement of Soil R in a semiarid grassland,we found that the Soil R value measured at around 10:00 o’clock local time was the closest to its daily mean,while the value at 14:00 o’clock was found to be the highest daily rate.A measurement frequency higher than every 10 days was necessary for estimating the seasonal Soil R and its temperature sensitivity(Q10)reasonably.Our study would be useful as guidelines for manual Soil R measurements and model data selection in semiarid temperate grasslands.展开更多
文摘选择武汉城区4种不同的水质作为影响因子,通过室内实验,研究武汉城区4种不同水质对雷氏黄萤Luciola leii Fu and Ballantyne幼虫呼吸行为的影响,探讨利用雷氏黄萤幼虫的呼吸指标作为监测多污染源混合废水的可行性。结果表明,Ⅲ类(东湖)、Ⅳ类(汤逊湖)、Ⅴ类(野芷湖)和劣Ⅴ类(南湖)四类水质与CK相比较,对雷氏黄萤幼虫昼夜的呼吸行为均有影响。雷氏黄萤幼虫刚接触Ⅲ类、Ⅳ类、Ⅴ类和劣Ⅴ类水质均有明显反应。在劣Ⅴ类水质条件下,雷氏黄萤幼虫的呼吸持续时间和呼吸频率(FR)均高于Ⅲ类、Ⅳ类、Ⅴ类水质,呼吸间隔时间(SI)均低于Ⅲ类、Ⅳ类、Ⅴ类水质。提示雷氏黄萤幼虫的昼夜呼吸行为、呼吸持续时间、呼吸频率(FR)、呼吸间隔时间(SI)可作为多污染源混合废水的敏感生物学监测指标。
基金supported inpart by the‘‘Strategic Priority Research Program-Climate Change:Carbon Budget and Relevant Issues’’of the Chinese Academy of Sciences(XDA05050402)the National Natural Science Foundationof China(31170453)a Selected Young Scientist Program supported by the State Key Laboratory of Vegetation and Environment Change
文摘Soil respiration(Soil R)is one of the largest CO2fluxes from terrestrial ecosystems to the atmosphere.The largely seasonal and daily patterns of Soil R in semiarid grassland ecosystems indicate that measurement time and frequency would have significant influences on the assessment of seasonal soil carbon release.Based on a three-year continuous measurement of Soil R in a semiarid grassland,we found that the Soil R value measured at around 10:00 o’clock local time was the closest to its daily mean,while the value at 14:00 o’clock was found to be the highest daily rate.A measurement frequency higher than every 10 days was necessary for estimating the seasonal Soil R and its temperature sensitivity(Q10)reasonably.Our study would be useful as guidelines for manual Soil R measurements and model data selection in semiarid temperate grasslands.
