Zobrazeno 1 - 10
of 74
pro vyhledávání: '"E.A. Ripley"'
Autor:
E.A. Ripley, O.W. Archibold
Publikováno v:
Applied Geography. 24:77-95
Direct and indirect measurements of leaf area distribution during the 2001-growing season were used to characterize the structure of a small aspen grove in relict grassland of the northern Great Plains. Located in the Kernen Prairie near Saskatoon, t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::682e6a52fc981d7aa0a50a56b2a49876
https://doi.org/10.1016/j.apgeog.2003.11.001
https://doi.org/10.1016/j.apgeog.2003.11.001
Publikováno v:
Forest Ecology and Management. 131:127-141
A clear-cut aspen stand, near Prince Albert, Saskatchewan, was treated in July 1994 to encourage the establishment of mixed aspen-white spruce forest. Site preparation methods included use of a v-blade, disc trencher and Bracke mounder, as well as a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c9a92bc9a138d3a1260c9aba22644e42
https://doi.org/10.1016/s0378-1127(99)00205-4
https://doi.org/10.1016/s0378-1127(99)00205-4
Autor:
E.A. Ripley, V. Wittrock
Publikováno v:
International Journal of Climatology. 19:271-289
This paper examines time and space patterns of autumn soil moisture for the south-eastern Canadian Prairie provinces and looks for potential teleconnections between these patterns and remote forcing. A unique 35-year dataset of annually-measured (in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::19cfa8396095bde67771745aa2f60c73
https://doi.org/10.1002/(sici)1097-0088(19990315)19:3<271::aid-joc362>3.0.co
https://doi.org/10.1002/(sici)1097-0088(19990315)19:3<271::aid-joc362>3.0.co
Publikováno v:
Agricultural Systems. 59:57-66
The ability to predict wheat yields from large-scale weather variables has benefits throughout the semi-arid regions of the world. In spite of the availability of numerous crop-growth models, there has been little concerted effort to analyse yields r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::522e62864a1a96e52d121624c3677386
https://doi.org/10.1016/s0308-521x(98)00082-1
https://doi.org/10.1016/s0308-521x(98)00082-1
Publikováno v:
Applied Geography. 18:375-395
North American ginseng is native to the deciduous forest region of eastern North America but is now cultivated in areas well beyond its natural range. In recent years an expanding market has attracted growers in climatically less suitable regions, in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0c71fbc1cb2c8a6656b5c3fd4a9babef
https://doi.org/10.1016/s0143-6228(98)00027-7
https://doi.org/10.1016/s0143-6228(98)00027-7
Publikováno v:
Agricultural and Forest Meteorology. 84:223-232
Wheat yields were simulated at three locations in Saskatchewan (Swift Current, Saskatoon and Melfort) using the CERES (crop estimation through resource and environment synthesis-wheat)-Wheat model. The simulations were made using climatic data of sel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7571187f90b23f8a42479d02fca1cb7f
https://doi.org/10.1016/s0168-1923(96)02363-5
https://doi.org/10.1016/s0168-1923(96)02363-5
Publikováno v:
Atmosphere-Ocean. 33:195-222
Droughts are major natural disasters for many parts of the world. Dry areas, where the precipitation pattern is markedly seasonal, or is otherwise highly variable, are the most susceptible. The Canadian Prairies, together with the U.S. Great Plains,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c2ff444798c8d016f8e843f1509527c0
https://doi.org/10.1080/07055900.1995.9649532
https://doi.org/10.1080/07055900.1995.9649532
Publikováno v:
American Midland Naturalist. 136:248
The microclimate of a small aspen grove in central Saskatchewan was moni- tored between December 1993 and April 1995 and compared with that of the adjacent prai- rie. Inside the grove solar radiation was reduced to 55% in winter and 23% in summer com
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::80431b70f30ac0670957c8cb0445c4b1
https://doi.org/10.2307/2426729
https://doi.org/10.2307/2426729
Autor:
V. Wittrock1, E.A. Ripley2
Publikováno v:
International Journal of Climatology. Mar1999, Vol. 19 Issue 3, p271-289. 19p.
Autor:
E.A. Ripley, O.J. Olm
Publikováno v:
Agricultural Meteorology. 10:461-466
A readout circuit for the light chopper anemometer presented by Bradley (1969) is described. The circuit shapes the pulses from the sensor, divides by either 1, 2 or 4, and supplies output pulses of fixed length to electromechanical counters. Banks o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0f699b72749e70306a18fdc7536ce52e
https://doi.org/10.1016/0002-1571(72)90047-7
https://doi.org/10.1016/0002-1571(72)90047-7