Field capacity (FC) and permanent wilting point (PWP) are two critical input parameters required in various biophysical models. There limited published data on FC PWP of dryland cropping soils across north-western Victoria. Direct measurements time-consuming expensive. Reliable prediction from their functional relationships with routinely measured soil properties can help to circumvent these constraints. This study provided using undisturbed samples as functions geomorphological unit, type,...

We compared the ability of two legend designs on a soil-landscape map to efficiently and effectively support reading tasks with goal better understanding how design choices affect user performance. Developing such knowledge is essential effective interfaces for digital earth systems. One legends contained an alphabetical ordering categories, while other used perceptual grouping based Munsell color space. tested 4 20 experts (in geography-related domains). analyzed traditional usability...

Suckers are thought to be harmful other species of fish because predation on eggs and fry from competition, mainly for food. This belief has led many sucker removal projects enhance sport fisheries. In a review the literature, we found that (1) although suckers eat some fishes, there was no evidence such is prey populations; (2) studies suggesting competition food failed demonstrate limiting (which necessary occur); (3) equivocal populations fare better in absence or after programs. Reasons...

Electrophoretic analysis of three polymorphic isozymes (lactate, malate, and glycerol-3-phosphate dehydrogenases) from lake whitefish, Coregonus clupeaformis, indicated that at least four populations exist in northern Lake Michigan. Cluster Nei genetic identity indices revealed much temporal spatial overlap among population ranges. The did not appear complete since the LDH A allele exhibited clinal variation with increasing frequency south to north. Because ranges spatially temporally,...

Since 1997, the Victorian Resources Online (VRO) website (http://www.dpi.vic.gov.au/vro) has been a key means for dissemination of landscape-based natural resources information via internet in Victoria, Australia. The currently consists approximately 11,000 web pages, including 1900 maps and 1000 downloadable documents. Information is provided at range scales—from statewide regional overviews to more detailed catchment sub-catchment levels. At all these levels generalisation, arranged an...

Abstract For twenty‐one years, soil information and knowledge in Victoria, Australia has been shared via the Victorian Resources Online ( VRO ) website. primary online repository for landscape generated from land resource assessment studies, field days, training workshops, visualization animation of processes. User surveys qualitative feedback have highlighted value to users, with many considering it a useful “tool trade,” particularly those involved agricultural research, extension,...

Summary The development of pedotransfer functions (PTFs) needs to recognize and account appropriately for the underlying structure in data that is imposed by sampling design adopted ensure support any scientific inferences. We fitted several potential PTFs field capacity (FC) permanent wilting point (PWP), with without taking design, collected a nested spatial design. Leave‐one‐paddock‐out cross‐validation (LOPOCV) Akaike information criterion (AIC) were used identify strong predictive...

Abstract. The Victorian Resources Online (VRO) website (http://www.dpi.vic.gov.au/vro) is the principal means for accessing landscapebased information in Victoria. In this paper we introduce a range of online landscape visualisations that have been developed to enhance existing static web content around nature and distribution Victoria's landforms soils as well associated processes. Flash used develop include interactive panoramas, animations soil processes videos experts explaining features...

Meeting the increased demand for dairy products will require careful management of soils to minimise land degradation and sustain production. Key providing farmers with tools manage their sustainably, is firstly understanding soil types currently managed by farmers, secondly quantifying changes in properties response management. The Victorian Land Use Information System was interrogated identify parcels these data overlaid on survey information dominant orders three regions Victoria. Of...

A spatial dataset of soil and landform classification in Gippsland. The map units are broad `packages' land - divided primarily on the basis type, pattern geology. has been derived from a combination past studies collated by Ian Sargeant Mark Imhof 1994 to 2013. Data older surveys have also included this consolidated dataset. Mapping east northern Gippsland regions is restricted freehold lands. Webpages Victorian Resources Online website provide description each indicate source used define...

Lessons of the past show that care for soil is fundamental to rise and sustainability agrarian civilisations. The responsibility this devolves individual farmers, land managers investors in agricultural production, all whom are, by default, custodians. Soil condition affected use practices; understanding dynamics interaction therefore critical achieving sustainable management maintenance health. Understanding managing dynamic requires good data sound knowledge farming systems their with...