Water Chemistry of the Redwood Creek and Mill Creek Basins, Redwood National Park, Humboldt and Del Norte Counties, California PDF Download
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Author: Wesley L. Bradford
Publisher:
ISBN:
Category : Redwood National Park (Calif.)
Languages : en
Pages : 124
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Author: Wesley L. Bradford
Publisher:
ISBN:
Category : Redwood National Park (Calif.)
Languages : en
Pages : 124
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Author: Rick T. Iwatsubo
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Category : Aquatic biology
Languages : en
Pages : 130
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Author:
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Category : Aquatic habitats
Languages : en
Pages : 424
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Author:
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Category : Geological surveys
Languages : en
Pages : 260
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Author:
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Category : Water
Languages : en
Pages : 532
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Author:
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Category : California
Languages : en
Pages : 476
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Author: Geological Survey (U.S.)
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Category : California
Languages : en
Pages : 476
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Category : National parks and reserves
Languages : en
Pages : 112
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Author: Wesley L. Bradford
Publisher: Forgotten Books
ISBN: 9780332571744
Category : Technology & Engineering
Languages : en
Pages : 128
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Excerpt from Water Chemistry of the Redwood Creek and Mill Creek Basins, Redwood National Park, Humboldt and Del Norte Counties, California Studies during storms indicated that specific conductance and alkalinity were two to three times as likely to decrease at the discharge peak in logged watersheds as in forested ones. This suggests that overland flow containing lower concentrations of soil-derived dissolved solids than flow from other sources is a larger component of peak flow in logged watersheds than in forested watersheds. Comparing a storm in November 1974 to one in February 1975, nitrate concentration increased significantly from November to February in a stream draining a logged watershed and decreased significantly in a stream draining a forested watershed. Then from the rainy season to the dry season, nitrate decreased in both logged and forested watersheds. This pattern suggests that soil nitrate produced by fixation and organic decomposition early in the rainy season tends to wash out of logged watersheds but be taken up in tree growth in forested watersheds. As the dry season progresses, base flow containing little nitrate enters the streams, causing a decrease in nitrate concentra tion. By contrast, the other plant nutrients-phosphorus, Kjeldahl nitrogen, ammonium, and dissolved organic carbon-all decreased in streams from the November 1974 storm to the February 1975 storm and changed little from the rainy season through the dry season. This pattern suggests that these materials tend to accumulate in the soil during the dry season and be washed out and diluted as the rainy season progresses. Very little reaches the water table due to soil absorption so that little appears in the base flow during the dry season. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
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Category : Mill Creek Watershed (Del. Norte County, Calif.)
Languages : en
Pages : 258
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