id author title date pages extension mime words sentences flesch summary cache txt work_kdo3wnmddjelbp6anpqkfsczly Dörte Köster Paleolimnological assessment of human-induced impacts on Walden Pond (Massachusetts, USA) using diatoms and stable isotopes 2005.0 15 .pdf application/pdf 10088 907 61 Multi-proxy analysis of a sediment core spanning 1600 years from Walden Pond, Massachusetts (USA), reveals abundance of the diatom Cyclotella stelligera increased, the chrysophyte cyst to diatom ratio decreased, organic recreational development of Walden Pond in the early 20th century, oligotrophic diatom species were largely replaced by disturbance indicators and the diatom-inferred lake pH increased by 0.5 units, while the bulk organic in lake sediments, are useful indicators of past environmental change, including lake trophic status (Moser isotope stratigraphy have been used extensively for assessing changes in lake water nutrient balance in response to the impact of human activities on watersheds. carbon (C) and N elemental and stable isotope composition in lake sediment cores (e.g., Schelske and Hodell, Performance of the pH and TP models used for paleolimnological reconstructions in this study, based on diatom and environmental data from 82 New England lakes (Dixit et al., 1999). ./cache/work_kdo3wnmddjelbp6anpqkfsczly.pdf ./txt/work_kdo3wnmddjelbp6anpqkfsczly.txt