Zobrazeno 1 - 10
of 11
pro vyhledávání: '"H L, Ragsdale"'
Autor:
C. W. Berish, H. L. Ragsdale
Publikováno v:
Journal of Environmental Quality. 15:183-187
Prelevement de litiere, d'humus, de sol superficiel et plus profond (25-30 cm) pour mesurer la quantite de metaux disponible, potentiellement disponible et totale
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8d9b5de578bbde8525dc27efbec77c8e
https://doi.org/10.2134/jeq1986.00472425001500020019x
https://doi.org/10.2134/jeq1986.00472425001500020019x
Autor:
C. W. Berish, H. L. Ragsdale
Publikováno v:
Canadian Journal of Forest Research. 15:477-483
Tree-ring analyses of hickory (Carya spp.) from the long-term ecological research site, Coweeta Hydrologic Research Laboratory, revealed that concentrations (micrograms per gram) of lead, aluminum, and zinc are increasing, that concentrations of copp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e077f7417d67d330854eb9618175b922
https://doi.org/10.1139/x85-078
https://doi.org/10.1139/x85-078
Autor:
Claire L. Carlson, H. L. Ragsdale
Publikováno v:
Water, Air, and Soil Pollution. 42
In order to determine the effect of acid precipitation on the movement of Cd and Zn in metal-contaminated systems, Cd- and Zn-amended soil systems, with and without eastern white pine seedlings, were treated with solution at pH levels of 2, 3, 4, and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0c9f262500d8aa88579ec6a2d8ed8025
https://doi.org/10.1007/bf00279277
https://doi.org/10.1007/bf00279277
Autor:
C. W. Berish, H. L. Ragsdale
Publikováno v:
Forest Hydrology and Ecology at Coweeta ISBN: 9781461283249
Substantial increases in ambient levels of toxic trace metals, such as lead (Pb), are directly attributable to coal combustion, metal smelting, waste disposal, and the twentieth century use of leaded alkyl derivatives in gasoline. For example, about
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a9733f0b388b2d2fd3165e473cbae9f1
https://doi.org/10.1007/978-1-4612-3732-7_27
https://doi.org/10.1007/978-1-4612-3732-7_27
Autor:
W H Murdy, H L Ragsdale
Research progress is reported for the period November 1979 through January 1981 in the following areas: definition of the stages of plant sexual reproduction most susceptible to SO/sub 2/ stress; the role of flower structure and function on the susce
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f22047c3a23b6bc38811ae80ad932ce2
https://doi.org/10.2172/6550163
https://doi.org/10.2172/6550163
Autor:
C.W. Berish, H. L. Ragsdale
Publikováno v:
Biogeochemistry. 6
Lead (Pb) concentrations in wood ring segments of Carya spp. in two urban forests in Atlanta, GA, have decreased approximately 20 percent in the last decade. This pattern is consistent with reduced atmospheric Pb over the same period. We have determi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ab8902104f1f3412109f298fc4a67784
https://doi.org/10.1007/bf00002930
https://doi.org/10.1007/bf00002930
Publikováno v:
Oecologia. 73(2)
Leaves were sampled in a successional, southern Appalachian forest to estimate autumn foliar nutrient dynamics. Resorption of N and P in a successional forest equaled, or exceeded, resorption estimates for a more mature control forest. Foliar nutrien
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::166278d87a6f82c38dc3d001f4c9f4e0
https://pubmed.ncbi.nlm.nih.gov/28312297
https://pubmed.ncbi.nlm.nih.gov/28312297
Publikováno v:
ORNL. U.S. Atomic Energy Commission.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::5dcd156f48a4e6e2e3fc6c2e963cd5ab
https://pubmed.ncbi.nlm.nih.gov/5599596
https://pubmed.ncbi.nlm.nih.gov/5599596