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Regeneration complexities of Pinus gerardiana in dry temperate forests of Indian Himalaya

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Title Regeneration complexities of Pinus gerardiana in dry temperate forests of Indian Himalaya
 
Creator Kumar R, Shamet GS, Mehta H, Alam NM, Kaushal R, Chaturvedi OP, Sharma N, Khaki BA and Gupta D
 
Subject Pinus gerardiana, Regeneration, Himalaya, Growing stock, Biotic factor, Abiotic factor
 
Description Not Available
Pinus gerardiana is considered an important species in dry temperate forests of North-Western Indian Himalaya because of its influence on ecological processes and economic dependence of local people in the region. But, large numbers of biotic and abiotic factors have affected P. gerardiana in these forests; hence, there is a crucial need to understand the regeneration dynamics of this tree species. The present investigation was conducted in P. gerardiana forests to understand vegetation pattern and regeneration processes on different sites in the region. Statistical analysis was performed to know variability in growing stock and regeneration on sample plots, while correlation coefficients and regression models were developed to find the relationship between regeneration and site factors. The vegetation study showed dominance of P. gerardiana, which is followed by Cedrus deodara, Pinus wallichiana and Quercus ilex in the region. The growing stock of P. gerardiana showed steep increasing and then steadily declining trend from lower to higher diameter class. The distribution of seedling, sapling, pole and trees was not uniform at different sites and less number of plots in each site were observed to have effective conditions for continuous regeneration, but mostly showed extremely limited regeneration. Regeneration success ranging from 8.44 to 15.93 % was recorded in different sites of the region, which suggests that in different sites regeneration success is influenced by collection of cone for extracting seed, grazing/browsing and physico-chemical properties of soil. Regeneration success showed significant correlation and relationship with most of abiotic and biotic factors. The regeneration success is lower than the requirement of sustainable forest, but varies widely among sites in dry temperate forests of Himalaya. More forest surveys are required to understand the conditions necessary for greater success of P. gerardiana in the region.
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Date 2018-09-12T09:14:59Z
2018-09-12T09:14:59Z
2016-04-01
 
Type Research Paper
 
Identifier Kumar, R., Shamet, G.S., Mehta, H. et al. Environ Sci Pollut Res (2016) 23: 7732. https://doi.org/10.1007/s11356-015-6010-5
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http://krishi.icar.gov.in/jspui/handle/123456789/6730
 
Language English
 
Relation Not Available;
 
Publisher Springer