KARRA:KARRAWIRRAPARRI-RIVER RED GUM-EUCALYPTUS CAMALDULENSIS

2003 ◽  
Vol 8 (1) ◽  
pp. 51-56
Author(s):  
Vivonne Thwaites
Keyword(s):  
Eucalyptus Camaldulensis ◽  
River Red Gum

scholarly journals A Computer Vision System for the Automatic Classification of Five Varieties of Tree Leaf Images

Computers ◽  
2020 ◽  
Vol 9 (1) ◽  
pp. 6 ◽  
Author(s):  
Sajad Sabzi ◽  
Razieh Pourdarbani ◽  
Juan Ignacio Arribas
Keyword(s):  
Neural Network ◽  
Vision System ◽  
Eucalyptus Camaldulensis ◽  
Prunus Armeniaca ◽  
Malus Pumila ◽  
Computer Vision System ◽  
Cydonia Oblonga ◽  
River Red Gum ◽  
Hybrid Artificial Neural Network

A computer vision system for automatic recognition and classification of five varieties of plant leaves under controlled laboratory imaging conditions, comprising: 1–Cydonia oblonga (quince), 2–Eucalyptus camaldulensis dehn (river red gum), 3–Malus pumila (apple), 4–Pistacia atlantica (mt. Atlas mastic tree) and 5–Prunus armeniaca (apricot), is proposed. 516 tree leaves images were taken and 285 features computed from each object including shape features, color features, texture features based on the gray level co-occurrence matrix, texture descriptors based on histogram and moment invariants. Seven discriminant features were selected and input for classification purposes using three classifiers: hybrid artificial neural network–ant bee colony (ANN–ABC), hybrid artificial neural network–biogeography based optimization (ANN–BBO) and Fisher linear discriminant analysis (LDA). Mean correct classification rates (CCR), resulted in 94.04%, 89.23%, and 93.99%, for hybrid ANN–ABC; hybrid ANN–BBO; and LDA classifiers, respectively. Best classifier mean area under curve (AUC), mean sensitivity, and mean specificity, were computed for the five tree varieties under study, resulting in: 1–Cydonia oblonga (quince) 0.991 (ANN–ABC), 95.89% (ANN–ABC), 95.91% (ANN–ABC); 2–Eucalyptus camaldulensis dehn (river red gum) 1.00 (LDA), 100% (LDA), 100% (LDA); 3–Malus pumila (apple) 0.996 (LDA), 96.63% (LDA), 94.99% (LDA); 4–Pistacia atlantica (mt. Atlas mastic tree) 0.979 (LDA), 91.71% (LDA), 82.57% (LDA); and 5–Prunus armeniaca (apricot) 0.994 (LDA), 88.67% (LDA), 94.65% (LDA), respectively.

Litter Fall and Leaf Decomposition in a River Red Gum (Eucalyptus camaldulensis) Swamp

1983 ◽  
Vol 31 (3) ◽  
pp. 307 ◽  
Author(s):  
SV Briggs ◽  
MT Maher
Keyword(s):  
New South ◽  
Eucalyptus Camaldulensis ◽  
Leaf Decomposition ◽  
Leaf Fall ◽  
Litter Fall ◽  
Nutrient Input ◽  
South Wales ◽  
Flood Period ◽  
Important Food Source ◽  
River Red Gum

Litter fall and leaf decomposition rates were measured in Murrumbidgil Swamp, a river red gum (Eucalyptus camaldulensis) swamp near Booligal, New South Wales. Total litter fall, excluding large branches, was about the same as in other eucalypt and overseas hardwood forests (369-580 g m-2 year-1), but the proportion of leaf fall (21-29%) was lower. Litter fall was greater after the swamp dried out following a prolonged period of flooding than during the flood period. Ionic concentrations in the leaf litter were higher than in other eucalypts, but accessions were similar because leaf fall was lower in the red gum forest. The order of nutrient input was Ca > N > Mg ≈ Na ≈ K > S > P > Fe. Decomposition of red gum leaves submerged in the swamp was rapid at first (up to 19.2% loss in weight in 24 h) and then slowed down. The half life of the leaves decomposing over 4 months was 80 days. It is suggested that E. camaldulensis litter may provide an important food source for detritivorous invertebrates and hence for waterfowl in red gum swamps.

Restoration of Catchment Water Balance: Responses of Clonal River Red Gum (Eucalyptus camaldulensis) to Waterlogging

1997 ◽  
Vol 5 (2) ◽  
pp. 101-108 ◽  
Author(s):  
Kandia Akilan ◽  
John K. Marshall ◽  
Anne L. Morgan ◽  
Richard C. C. Farrell ◽  
David T. Bell
Keyword(s):  
Water Balance ◽  
Eucalyptus Camaldulensis ◽  
River Red Gum

Quantifying water requirements of riparian river red gum (Eucalyptus camaldulensis) in the Murray-Darling Basin, Australia - implications for the management of environmental flows

Ecohydrology ◽  
2015 ◽  
Vol 8 (8) ◽  
pp. 1471-1487 ◽  
Author(s):  
Tanya M. Doody ◽  
Matthew J. Colloff ◽  
Micah Davies ◽  
Vijay Koul ◽  
Richard G. Benyon ◽  
...  
Keyword(s):  
Environmental Flows ◽  
Eucalyptus Camaldulensis ◽  
Water Requirements ◽  
Murray Darling Basin ◽  
River Red Gum

Water uptake by two river red gum (Eucalyptus camaldulensis) clones in a discharge site plantation in the Western Australian wheatbelt

1997 ◽  
Vol 200 (1-4) ◽  
pp. 136-148 ◽  
Author(s):  
John K. Marshall ◽  
Anne L. Morgan ◽  
Kandia Akilan ◽  
Richard C.C. Farrell ◽  
David T. Bell
Keyword(s):  
Water Uptake ◽  
Eucalyptus Camaldulensis ◽  
Discharge Site ◽  
Western Australian ◽  
River Red Gum
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