Effects of Elevated Atmospheric CO2 on Plant Detritus Nutritional Quality and Heterotrophic Utilization in Aquatic Ecosystems

大气二氧化碳浓度升高对水生生态系统中植物碎屑营养质量和异养利用的影响与陆地生态系统的研究相比，大气二氧化碳浓度升高对水生生态系统的影响相对较小。这项拟议的研究将考察在二氧化碳水平升高的情况下生长的树叶对溪流微生物群落以及选定的小动物和昆虫的影响。白杨树将在相同的条件下生长，只是其中一组将暴露在升高的二氧化碳中。将研究这两组树叶在溪流中的微生物定殖率，以确定树叶质量如何影响树叶凋落物的利用和损失。这些经过处理的垃圾将被喂给甲壳类动物和昆虫，以确定全球变化的潜在影响。

AbstractWetzel-9911237Effects Of Elevated Atmospheric CO2 On Plant Detritus Nutritional Quality And Heterotrophic Utilization In Aquatic EcosystemsThe influence of elevated atmospheric carbon dioxide levels on aquatic ecosystems is relatively ignored compared to research occurring in terrestrial systems. The proposed research will examine the influence of leaves grown under elevated carbon dioxide levels on stream microbial communities and selected small animals and insects. Aspen trees will be grown under identical conditions except one set will be exposed to elevated carbon dioxide. The microbial colonization of these two sets of leaves in streams will be studied to determine how leaf quality affects utilization and loss of leaf litter. This processed litter will then be fed to crustaceans and insects to determine a potential impact of global change.