<> "The repository administrator has not yet configured an RDF license."^^ . <> . . . "Effect of topography on farm-scale spatial variation in extreme temperatures in the Southern Mallee of Victoria, Australia "^^ . "Extreme temperatures around flowering of wheat\r\nhave the potential to reduce grain yield and at farm scale\r\ntheir impact can be spatially variable depending on\r\ntopography. Twenty-five data loggers were installed at\r\n0.8-m height across a 164-ha farm in the southern Mallee\r\nof Victoria, Australia to spatially record the daily course of\r\ntemperatures around the average date of flowering of wheat\r\nin the region. The experiment was conducted during 2-\r\nyears period. In 1 year, the farm had no crop cover and in\r\nanother year the farm had a wheat crop. Multiple linear\r\nregression analysis techniques were used to fit models\r\nrelating daily extreme temperatures to the farm topographic\r\nfeatures of elevation, aspect and slope, and the average\r\nmaximum and minimum temperatures of each day at the\r\nfarm in order to identify areas of high risk of extreme\r\ntemperatures around the time of the flowering of wheat.\r\nThe fitted regression models explained 90% and 97% of the\r\nvariability in maximum and minimum temperatures, respectively,\r\nwhen the farm had no crop cover and 80% and\r\n94% of the variability in maximum and minimum temperatures,\r\nrespectively, when the farm had a wheat crop cover.\r\nWhen the farm had no crop, only minimum temperature\r\nwas partially explained by the topography however, both\r\nmaximum and minimum temperatures were partially\r\nexplained by the topography when the farm had a wheatcrop. From this study it was concluded that, (1) high\r\ntemperature variations were found across the farm (2)\r\ntemperature variations were only partially explained from\r\nthe developed model presumably due to the flatter\r\ntopography of the farm and (3) the relationships obtained\r\nfrom this study could be used in a crop model which can\r\nexplain variation in grain yield based on the topography of\r\na field."^^ . "2011" . . "103" . "3-4" . . "Springer "^^ . . . "Theoretical and Applied Climatology "^^ . . . "14344483" . . . . . . . . . . "P N"^^ . "Dixit"^^ . "P N Dixit"^^ . . "D"^^ . "Chen"^^ . "D Chen"^^ . . . . . . "Effect of topography on farm-scale spatial variation in extreme temperatures in the Southern Mallee of Victoria, Australia (PDF)"^^ . . . . . "Effect of topography on farm-scale spatial variation in extreme temperatures in the Southern Mallee of Victoria, Australia (Image (PNG))"^^ . . . . . . "Effect of topography on farm-scale spatial variation in extreme temperatures in the Southern Mallee of Victoria, Australia (Image (PNG))"^^ . . . . . . "Effect of topography on farm-scale spatial variation in extreme temperatures in the Southern Mallee of Victoria, Australia (Image (PNG))"^^ . . . . . . "Effect of topography on farm-scale spatial variation in extreme temperatures in the Southern Mallee of Victoria, Australia (Image (PNG))"^^ . . . . . . "Effect of topography on farm-scale spatial variation in extreme temperatures in the Southern Mallee of Victoria, Australia (Indexer Terms)"^^ . . . . . "HTML Summary of #5424 \n\nEffect of topography on farm-scale spatial variation in extreme temperatures in the Southern Mallee of Victoria, Australia \n\n" . "text/html" . . . "Agriculture-Farming, Production, Technology, Economics"@en . . . "Climate Change"@en . .