Zobrazeno 1 - 7
of 7
pro vyhledávání: '"R. E. Kreh"'
Publikováno v:
Northern Journal of Applied Forestry. 17:95-99
A reforestation experiment was established to test the growth of three pine species on two different surface-mined sites in the Appalachian coalfields of southwest Virginia. One site was mined just prior to enactment of the 1977 Surface Mining Contro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f692e2b15036dc23e9deeb7614b6b145
https://doi.org/10.1093/njaf/17.3.95
https://doi.org/10.1093/njaf/17.3.95
Publikováno v:
Journal American Society of Mining and Reclamation. 2000:226-230
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::735074a4906675e535c5c3f156da7b03
https://doi.org/10.21000/jasmr00010226
https://doi.org/10.21000/jasmr00010226
Publikováno v:
Journal American Society of Mining and Reclamation. 1996:613-620
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cd97cc75135bcf137575832f327e5f6d
https://doi.org/10.21000/jasmr96010613
https://doi.org/10.21000/jasmr96010613
Publikováno v:
Journal American Society of Mining and Reclamation. 1990:279-286
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c4057169ea006459d268e6bd949afbb7
https://doi.org/10.21000/jasmr90010279
https://doi.org/10.21000/jasmr90010279
Publikováno v:
Transactions of the ASAE. 28:369-373
DESPITE a three-fold difference in mean ground pressure, changes in soil density and porosity caused by an unloaded, rubber-tired log skidder did not exceed those caused by a crawler. The changes in soil density and porosity caused by these machines
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8ac8f95a75d7b46257d2ad12ffdedf6a
https://doi.org/10.13031/2013.32260
https://doi.org/10.13031/2013.32260
Publikováno v:
Journal of Environmental Quality. 13:387-391
Evaluation de la germination, de la survie, de la croissance et de la colonisation mycorhizienne de 3 especes de pin a racine superficielle affecte par 2 types de sols de mine, avec ou sans engrais
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::522b3a2b77764b598aaeb656b100cc4f
https://doi.org/10.2134/jeq1984.00472425001300030013x
https://doi.org/10.2134/jeq1984.00472425001300030013x
Publikováno v:
Botanical Gazette. 143:216-218
We studied flower abundance and its relationship to acorn crop size on four Quercus alba L. trees in Patrick County, Virginia, for 4 yr. Acorn production was significantly related to spring flower abundance. A linear model was developed which account
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::33ff966306642284ce137fd16be70df3
https://doi.org/10.1086/337292
https://doi.org/10.1086/337292