Decomposition during autumn foliage leaf-fall in wetlands situated along a biogeochemical gradient in Pennsylvania, USA
作者： Hunter J. Carrick , Kacey L. Dananay , Rebecca A. Eckert , Keith J. Price
DOI: 10.1080/02705060.2011.599994
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摘要: Autumn leaf fall represents an important allochthonous organic input to inland, aquatic ecosystems, particularly those situated in mixed hardwood forests. We evaluated factors that influence decomposition wetlands along a strong biogeochemical gradient spanning the ridge and valley region mid-Atlantic United States. Leaf rates were estimated using mesh bags; at same time, algal invertebrate colonization on packs was measured. exhibited exponential decline over 35-day incubation period; similar of previous studies (range 0.15–0.40 per day) not significantly different (one-way ANOVA, F = 0.67, p = 0.526). Mean chlorophyll-a (mg/m2) increased among sampling dates generally 10-fold greater transition (22.88 29.20 mg/m2) compared with (2.24 mg/m2) wetland (F = 14.78, p < 0.001). Invertebrate biomass sign...
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