Zobrazeno 1 - 10
of 220
pro vyhledávání: '"R. D. Hammer"'
Autor:
Schaetzl, Randall
Publikováno v:
Annals of the Association of American Geographers, 1993 Dec 01. 83(4), 724-726.
Externí odkaz:
https://www.jstor.org/stable/2563604
Autor:
M. Stokes
Publikováno v:
Geological Journal. 30:202-202
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9ebf043e182a68af69eb9f88d151c45d
https://doi.org/10.1002/gj.3350300214
https://doi.org/10.1002/gj.3350300214
Autor:
Susan Brooks
Publikováno v:
Earth Surface Processes and Landforms. 18:381-381
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1d6d3c1f17dc37743507ac4490b3b04f
https://doi.org/10.1002/esp.3290180412
https://doi.org/10.1002/esp.3290180412
Publikováno v:
Plant and Soil. 250:175-182
A soil-based productivity index (PI) has been developed and is being tested as a means of quantitatively assessing potential soil productivity and predicting crop yield. Validation of the PI requires the PI-yield calibration for various soil-crop-cli
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fe26966a4edd98812ef5b4a7c0a4e6ee
https://doi.org/10.1023/a:1022801322245
https://doi.org/10.1023/a:1022801322245
Autor:
F. J. Young, R. D. Hammer
Publikováno v:
Soil Science Society of America Journal. 64:1443-1454
Soil survey users are requesting statistically valid distributions of soil attributes that are important for management and land use. The hypothesis that many soil attributes vary predictably with landscape positions was tested with 257 pedons from p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::08922f9515fa279681f72f531af8babb
https://doi.org/10.2136/sssaj2000.6441443x
https://doi.org/10.2136/sssaj2000.6441443x
Autor:
F. J. Young, R. D. Hammer
Publikováno v:
Soil Science Society of America Journal. 64:989-998
The key Soil Taxonomy is based upon the idea that certain properties can be used to define populations of soils from the soil continuum. The soil mapping paradigm is that similar soil populations exist within landforms. High taxonomic variability has
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::56e6805f0f886041d538aca40487a9ee
https://doi.org/10.2136/sssaj2000.643989x
https://doi.org/10.2136/sssaj2000.643989x
Publikováno v:
Soil Science Society of America Journal. 63:178-185
Frequency distributions of soil property values are largely unknown, yet they are important to studies of soil variability. Our objectives in this paper were to (i) evaluate the distributional normality of soil properties within and among upland geom
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::744fb5c0ccbcfaeac45ec7cf94c0100c
https://doi.org/10.2136/sssaj1999.03615995006300010025x
https://doi.org/10.2136/sssaj1999.03615995006300010025x
Publikováno v:
Soil Science Society of America Journal. 60:1901-1907
Crop growth and yield are known to be limited by A horizon thickness and may be related to more abundant and metabolically active roots in A than B horizon soil. The influence of A horizon thickness on root distribution and rhizosphere pH was observe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f6297de38d5ce583547b56bd3f396032
https://doi.org/10.2136/sssaj1996.03615995006000060040x
https://doi.org/10.2136/sssaj1996.03615995006000060040x
Publikováno v:
Soil Science. 160:371-375
Conventional pH measurements treat soil pH as a random, independent variable for providing the mean pH of soil samples. This is assumed to represent the unsampled neighborhood. However the measurement will be inadequate if spatially dependent heterog
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3eae4150fb3bc1f64caffd5245598ebf
https://doi.org/10.1097/00010694-199511000-00006
https://doi.org/10.1097/00010694-199511000-00006
Publikováno v:
Soil Science Society of America Journal. 59:509-519
Special-purpose land use maps based on slope attributes form digital elevation models (DEMs) often are produced with geographic information system technology. Field verification is lacking for accuracy and precision of computer-generated slope class
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::416ef5b3b1a667bb67fc8c602c15221f
https://doi.org/10.2136/sssaj1995.03615995005900020034x
https://doi.org/10.2136/sssaj1995.03615995005900020034x