Herbal
Ardavan hamidi; Sina Attarroshan; Ramezanali pourrostami; mohammadreza tabesh ardakani; siamak katebifar
Abstract
High increase in societies’ needs to wood and its products followed by decrease in forests lands leads to give special importance to forest plantation. The study aims to consider the impact of pure and mixed plantation of Eucalyptus and Ziziphus on above-ground growth features and soil properties ...
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High increase in societies’ needs to wood and its products followed by decrease in forests lands leads to give special importance to forest plantation. The study aims to consider the impact of pure and mixed plantation of Eucalyptus and Ziziphus on above-ground growth features and soil properties in Laleh Park in Dezful . A complete randomly design was conducted with two treatments of pure plantation of Eucalyptus cameldulensis, and mixed plantation of Eucalyptus and Ziziphus with three repetitions. In total, 42 sample plots were determined. The quantity characteristics were diameter at breast height , diameter of collar , height of tree , crown coverage, slender coefficient , Form quotient, volume, leaf dry mass , leaf area index , total growth ring width , and wood density. To determine the chemical and physical properties of soil, three soil samples from each plot at the depth of 0 to 30 cm were collected and a mixed sample was transformed to the laboratory for the further works. The results showed that DBH, DC, H, V, TWR of Eucalyptus cameldulensis in pure plantation was significantly higher than those of mixed plantation. According to the analysis of main components and growth features of Eucalyptus cameldulensis, two groups were separated across first and second axes as each of them indicated high adaptation with place of sampling (mixed or pure mass). The measuring soil properties between two plantations showed that potassium, nitrogen, phosphor, organic carbon, and saturation moisture content were significantly more than that in pure plantation.
