Zobrazeno 1 - 10
of 96
pro vyhledávání: '"Walter D. Willms"'
Autor:
Craig F. Drury, B.J. Ellert, Jim J. Miller, M.L. Owen, David S. Chanasyk, Walter D. Willms, X. M. Yang
Publikováno v:
Canadian Journal of Soil Science. 101:673-679
Crested wheatgrass (CWG) [Agropyron cristatum (L.) Gaertn.] is a commonly introduced grass in the Canadian prairies, but concerns remain about its possible long-term effects on soil quality, and its influence on soil water repellency (SWR) has not be
Publikováno v:
Rangeland Ecology & Management. 79:13-21
Climate change may make semiarid grasslands increasingly prone to wildfire. We studied fire seasonality and growing season condition effects on a semiarid grassland in Southern Alberta, Canada. Plots were hand-torched in either fall or spring. Respon
Publikováno v:
Agronomy Journal. 111:3008-3019
Publikováno v:
Rangeland Ecology & Management. 72:446-453
Management intensive grazing (MIG) may not maximize plant productivity on rangelands because of morphophysiological traits of grassland vegetation. We examined defoliation and moisture effects on the biomass yield of rhizomatous and caespitose grass
Publikováno v:
CATENA. 173:321-329
Cultivating native rangeland can have detrimental effects on soil carbon and nitrogen storage. Understanding how vegetation and soil recover after returning marginal cultivated land to its native state is important since soil plays a key role not onl
Publikováno v:
Applied Animal Behaviour Science. 209:14-21
Off-stream waterers (OSWs) located in upland pastures may be effective in reducing livestock impacts on riparian areas and rivers, but little research has been conducted on the impact of OSWs located closer to rivers. We studied cattle behaviour over
Publikováno v:
Canadian Journal of Soil Science. 98:678-687
A 5 yr (2011–2015) field study was conducted to test the hypothesis that streambank fencing had a significant effect on selected vegetation and soil properties of the Mixed prairie component of a complex corridor pasture. The grazing treatments [un
Publikováno v:
Journal of Soils and Sediments. 18:3228-3234
Grasslands play a crucial role in offsetting greenhouse gas emissions and mitigating climate change. A moderate change in grassland carbon (C) and nitrogen (N) stocks may substantially alter the global C and N cycle and thereby influence climate. But
Autor:
Daniel B. Hewins, Cameron N. Carlyle, Scott X. Chang, Edward W. Bork, Mike J. Alexander, Mark P. Lyseng, Walter D. Willms
Publikováno v:
Plant Ecology. 219:649-663
Little is known about the specific role of exotic species on measures of grassland plant diversity, including how this may vary with climatic conditions or large mammal herbivory. This study examined vegetation responses to long-term livestock grazin
Publikováno v:
Canadian Water Resources Journal / Revue canadienne des ressources hydriques. 43:18-32
Unmanaged riparian grazing may negatively impact rivers. The objective was to determine the influence of riparian grazing by cattle on selected channel morphology properties and riparian health of ...