![]() ![]() cerrioides, probably due to the larger production of this new wave of basal resprouts in the former species. The reported benefits of cleaning on growth diminished earlier in Q. cerrioides, while the height they reached increased with cleaning intensity. The mean number of these new resprouts was higher in Q. As a consequence of cleaning, a new wave of basal resprouts appeared. Pruning did not modify height or diameter but enhanced crown expansion. one or three resprouts reserved per stool). Cleaning of stools increased height and basal diameter growth, with low differences between the two cleaning intensities (i.e. cerrioides exhibited higher number of resprouts, height, basal diameter and crown cover, with specific differences increasing in high-quality sites. According to our results, both species resprouted vigorously after fire in the different environmental conditions studied, with an important influence of the size of the stool. In this study, we explore the resprouting patterns and the response to different intensities of stool cleaning and pruning of these co-occurring Mediterranean oak species in mixed extensive coppices which have appeared after large wildfires. However, in this process, functional differences arising from the contrasted leaf-habit of the two co-occurring oaks should be taken into account. The best alternative to manage these high-density and low production forests is their conversion into stored coppices (i.e. The extension of mixed evergreen (Quercus ilex) and winter deciduous (Quercus cerrioides) oak coppices is increasing in NE Spain as a consequence of large wildfires. The models have practical value for predicting the stump sprouting potential of oak stands in southern Indiana and possibly in ecologically similar regions. By year 10, site index was negatively related to competitive success for the white oaks but was not a signifi- cant predictor for the red oaks. ![]() Increasing site index was a significant contributor of increasing sprouting probabilities for year 1 and competitive success probabilities for year 5. Sprouting and competitive success probabilities decreased with increasing parent tree age and diameter at breast height. Parent tree age and diameter at breast height were significant predictors in all models. Black oak site index ranged from 15 to 25 m at an index age of 50 years on the study sites. Three species were in the red oak group: black oak (Quercus velutina Lam.), scarlet oak (Quercus coccinea Muenchh.), and northern red oak (Quercus rubra L.). Two species were in the white oak group: white oak (Quercus alba L.) and chestnut oak (Qurcus prinus L.). We used logistic regression to develop predictive models for five species in each of the three measurement years. ![]() We measured 2188 oak trees (Quercus spp.) on the Hoosier National Forest in southern Indiana before and 1, 5, and 10 years after clear-cutting to determine the influence of parent tree age, diameter breast height, and site in- dex on the probability that there was one or more living sprouts per stump: (i) 1 year after clear-cutting (sprouting probability) or (ii) that were competitively successful 5 or 10 years after clear-cutting (competitive success probability). Therefore, it can be said that pruning is about 75 centimeters in December as the best pruning time and heigh. There is no significant difference between treatments in term of tiller diameter, but in general thickest tiller was for pruning in January. The lowest tiller regarding of November with 5 tiller. Pruning in January from height of 75 cm with 100 tiller hade the greatest number tiller. Results showed that pruning stimulates been tillering. The end of July condition bases was investigated in terms of tillering. Before applying pruning, for homogeneous and the same size the bases, Variable height, canopy cove diameter and crown diameter was measured on every base. This factorial experiment based on completely randomized design with four treatments, pruning time (September, October, December, February) and four sub-plots pruning height (Complete pruning, 25 cm, 50 and 75 cm) were implemented. In this study was conducted in forest plantations Eshtehard, Bases of Haloxylon that wilting and drying effects are visible, was chosen and pruning them. Haloxylon is one of the resistant plants in desert areas, which has always been considered by researchers and practitioners since controlling sandy soils as one of the solutions to erosion and sand fixation by biological methods. ![]()
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