Rainfall threshold for hillslope outflow: an emergent property of flow pathway connectivity P. Lehmann, C. Hinz, G. McGrath, H. J. Tromp-van Meerveld, and J. J. McDonnell Institute of Terrestrial Ecosystems, Swiss Federal Institute of Technology, ETH Zurich, Switzerland School of Earth and Geographical Sciences, The University of Western Australia, Crawley, Australia School of Architecture, Civ...

Z. Boekelheide,1,2,* T. Saerbeck,3,4 Anton P. J. Stampfl,3,5 R. A. Robinson,3 D. A. Stewart,6 and F. Hellman1,2 1Department of Physics, University of California, Berkeley, Berkeley, California 94720, USA 2Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA 3Bragg Institute, Australian Nuclear Science and Technology Organisation, Lucas Heights, New...

Converting the native rangelands to simplified agronomic communities causessome changes in soil carbon, nitrogen and phosphorus. Establishing of perennial plantcommunities on formerly cultivated rangelands is expected to stabilize soil properties andincrease the amount of C, N, P stored in rangeland soils, but there is little information on whatplant communities are the most effective for impro...

A grazing study was undertaken to examine the effect of maintaining three levels of pre-grazing herbage mass (HM) on dairy cow performance, grass dry matter (DM) production and output from perennial ryegrass (Lolium perenne L.) pastures. Cows were randomly assigned to one of three pre-grazing HM treatments: 1150 - Low HM (L), 1400 - Medium HM (M) or 2000 kg DM/ha - High HM (H). Herbage accumula...

The major insect pest of Australian cool temperate pastures is the root-feeding insect Heteronychus arator (African black beetle, ABB). Significant pasture damage can occur even at low ABB densities (11 individuals per square meter), and often re-sowing of the whole paddock is required. Mitigation of the effects of pasture pests, and in particular subterranean species such as the larval form of...

cultivar Paiute, which originated from a single plant introduction (PI-109072) (Alderson and Sharp, 1994), Within the Great Basin, availability of irrigation water throughout very little breeding has been done to develop improved the growing season is the limiting factor in the development of improved pastures. The choice of species and their water requirements cultivars of cool-season perennia...

Anita K. Smyth1,2,3, Elizabeth Smee4, Stephanie S. Godfrey5,6, Mathew Crowther4 and David Phalen7 1CSIRO, PMB 2, Glen Osmond, South Australia 5064, Australia 2Future Farm Industries Cooperative Research Centre, The University of Western Australia, 35 Stirling Highway, Crawley, Western Australia 6009, Australia 3TERN Eco-informatics Facility, The University of Adelaide, North Terrace, Adelaide, ...

A common strategy in mitigating secondary salinity in southern Australia is the planting of trees and other deep-rooted perennial vegetation. Planting needs to target areas where perennials will provide the most benefit by minimising runoff and groundwater recharge. A number of one-dimensional (1D) water balance models have been developed in Australia that predict water balance components (evap...

Recent discussion about pasture persistence concentrates on pastures based on perennial ryegrass, the most commonly used grass species. This paper raises the question as to whether some of the causes of poor pasture persistence are due to perennial ryegrass being used in environments to which it is not suited. The adaptation to environmental stresses, particularly water, temperature and nutrien...