https://nova.newcastle.edu.au/vital/access/ /manager/Index en-au 5 Hydrological and erosional impact and farmer's perception on catch crops and weeds in citrus organic farming in Canyoles river watershed, Eastern Spain https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:47428 Wed 28 Feb 2024 15:19:54 AEDT ]]> Relationship of weather types on the seasonal and spatial variability of rainfall, runoff, and sediment yield in the western Mediterranean basin https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:49629 Wed 24 May 2023 13:39:51 AEST ]]> Hydrological heterogeneity in Mediterranean reclaimed slopes: runoff and sediment yield at the patch and slope scales along a gradient of overland flow https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:21731 Genista scorpius patches could be considered as "deep sinks", while patches where the graminoids Brachypodium retusum and Lolium perenne dominate were classified as "surface sinks" or "runoff splays". A variety of source patches were also identified spanning from "extreme sources" (Medicago sativa patches; equivalent to bare soil) to "poor sources" (areas scattered by dwarf-shrubs of Thymus vulgaris or herbaceous tussocks of Dactylis glomerata). Finally, we identified the volume of overland flow routing along the slope as a major controlling factor of "hydrological diversity" (heterogeneity of hydrological behaviours quantified as Shannon diversity index): when overland flow increases at the slope scale hydrological diversity diminishes.]]> Wed 11 Apr 2018 09:40:42 AEST ]]> Testing simple scaling in soil erosion processes at plot scale https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:41434 Wed 03 Aug 2022 14:19:25 AEST ]]> Policies can help to apply successful strategies to control soil and water losses. The case of chipped pruned branches (CPB) in Mediterranean citrus plantations https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:32436 −1) were carried out in two citrus plantations at paired sites (Control versus CPB), in La Costera District in Eastern Spain. Forty circular (0.25 m2) plots were installed in four rows (4 × 5 = 20 plots) in control (CON) and CPB plots (20 + 20 = 40 plots) to perform the rainfall simulations over one hour. The cost of chipping ranged from 102 to 253 € ha−1, and was related to the size of the farm. The soil quality, runoff and erosion assessment showed that CPB is a suitable strategy. CPB increased organic matter from 1.3% to 2.9% after 10 years in the 0–2 cm depth layer, while the 4–6 cm layer was largely not affected (OM moved from 1.1 to 1.3% after 10 years), and soil bulk density showed a similar trend: a decrease from 1.36 to 1.16 g cm−3 in the surface layer with no change in the subsurface layer. The hydrological and erosional responses were different between CON and CPB. The CON plots initiated ponding (40 s) and runoff (107 s) earlier than the CPB plots (169 and 254 s, respectively); and runoff discharge was 60% in CON vs 43% in CPB plots. Sediment concentration was four times larger in the CON plots than in the CPB (11.3 g l−1 vs 3 g l−1), and soil erosion was 3.8 Mg ha−1 h-1 vs 0.7 Mg ha−1h−1. CPB mulches were effective at controlling soil and water losses in Mediterranean citrus plantations as they showed the relationship between vegetation/litter cover and soil erosion rates. However, the farmer’s perception survey showed that the use of CPB was not welcomed nor accepted by the farmers. Policies that aim to promote CPB as soil conservation mulch need to be promoted by subsidies as the farmers requested, and by education to demonstrate the positive effects of CPB to of the farming community.]]> Tue 05 Jun 2018 14:58:10 AEST ]]> Causes and controlling factors of valley bottom gullies https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:36729 Thu 21 Oct 2021 12:52:16 AEDT ]]> Increasing farmer's income and reducing soil erosion using intercropping in rainfed maize-wheat rotation of Himalaya, India https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:30748 −1) than in a maize-wheat system. This system also reduced runoff and soil loss by 26% and 43%, respectively, compared to only a maize cropping system. Regression analysis revealed as runoff in maize crop increases, grain yield of succeeding rainfed wheat crop decreases due to the less availability of soil moisture.]]> Thu 21 Oct 2021 12:52:00 AEDT ]]> A 507-year rainfall and runoff reconstruction for the Monsoonal North West, Australia derived from remote paleoclimate archives https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:33942 Thu 20 Oct 2022 13:20:55 AEDT ]]> Comparison of ordinary and generalised least squares regression models in regional flood frequency analysis: a case study for New South Wales https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:12853 Sat 24 Mar 2018 08:15:18 AEDT ]]> Preliminary analysis of trends in Australian flood data https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:11982 Sat 24 Mar 2018 08:09:35 AEDT ]]> Investigating raindrop effects on transport of sediment and non-sorbed chemicals from soil to surface runoff https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:292 Sat 24 Mar 2018 07:42:51 AEDT ]]> Circulation and the nutrient budget in Myall Lakes https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:4894 Sat 24 Mar 2018 07:22:00 AEDT ]]> Long-term impact of rainfed agricultural land abandonment on soil erosion in the Western Mediterranean basin https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:34027 Fri 01 Feb 2019 13:10:56 AEDT ]]> An economic, perception and biophysical approach to the use of oat straw as mulch in Mediterranean rainfed agriculture land https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:34028 Fri 01 Feb 2019 13:10:56 AEDT ]]>