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Dar, Meraj U. Din
- Evaluation of probability distribution functions applied to tree diameter in a mixed uneven Kiker (Robinia pseudoacacia) stand of Kashmir Himalaya, India
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Authors
Affiliations
1 Faculty of Forestry, Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir (SKUAST-K), Benhama 191 202, IN
2 Division of Silviculture and Agroforestry, SKUAST-K, Ganderbal 191 201, IN
1 Faculty of Forestry, Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir (SKUAST-K), Benhama 191 202, IN
2 Division of Silviculture and Agroforestry, SKUAST-K, Ganderbal 191 201, IN
Source
Current Science, Vol 121, No 4 (2021), Pagination: 573-577Abstract
Probability distribution is of significance to predict tree distribution and estimate productivity in different ages as well as thinning out in forest stands to ensure optimized and stable stands. Statistical probability distributions, viz. lognormal, Weibull, exponential and gamma were used to fit tree-diameter data generated from the Manasbal forest stand of Kashmir Himalaya, India containing a heterogeneous population of trees with the objective to determine the best probability distribution of tree diameter. To estimate the parameters of the fitted distributions, the method of maximum likelihood was used. The various distributions were evaluated using different goodness-of-fit tests, viz. Kolmogorov–Smirnov, Cramer–von Mises and Anderson–Darling statistics, and the best distribution pertaining to the forest stand was ascertained. Lognormal distribution fitted the data well and could be used in modelling, planning and scheduling the forest stand in the study region.Keywords
Diameter class, goodness-of-fit statistics, forest stands, probability distribution function, Robinia pseudoacacia.Full Text
References
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- Mapping and economic evaluation of traditional wicker willow in the plains of Kashmir Himalaya, India
Abstract Views :159 |
PDF Views:83
Authors
Affiliations
1 Division of Silviculture and Agroforestry, SKUAST-K, Behama Ganderbal - 191 201, IN
2 Division of Forest Biology and Tree Improvement, SKUAST-K, Behama Ganderbal - 191 201, IN
3 Division of Silviculture and Agroforestry, SKUAST-K, Behama Ganderbal - 191 201, India, IN
1 Division of Silviculture and Agroforestry, SKUAST-K, Behama Ganderbal - 191 201, IN
2 Division of Forest Biology and Tree Improvement, SKUAST-K, Behama Ganderbal - 191 201, IN
3 Division of Silviculture and Agroforestry, SKUAST-K, Behama Ganderbal - 191 201, India, IN
Source
Current Science, Vol 122, No 12 (2022), Pagination: 1385-1391Abstract
Wicker willow craft, locally known as keani keam, is a handicraft from the Kashmir Valley, Jammu and Kashmir, India, involving weaving using willow reeds. Willow weaving is an indigenous industry of the Valley. The speciality of this craft lies in the fact that a willow product serves both as a decor and a household utility item to store and carry edible items during special occasions. Considering the importance of wicker willow in the Kashmir Valley, the present study aimed to assess the plantation area under wicker willow, identify the potential wicker-growing areas, evaluate the profitability associated with wicker cultivation and analyse the factors affecting the productivity of wicker. The central zone of Kashmir Valley was selected on the basis of purposive sampling as bulk of the wicker-based industry is concentrated in the central zone of Kashmir Valley, particularly in the districts of Srinagar and Ganderbal. Similarly, the villages/districts were selected based on their dependence on the wicker industry. Data were collected using multistage sampling with 153 households randomly selected for the survey. Data were subjected to analysis, viz. descriptive statistics, Cobb–Douglas-type production function and profitability analysis. The net present value and benefit–cost ratio were Rs 43,837.43 and 2.23 respectively, ensuring that investment in wicker cultivation is economically viable. The wicker cultivation was also profitable as the internal rate of return was 32.52%. The functional analysis revealed that the per kanal (20 kanal is equal to 1 ha) yield was significantly positively affected by the age of the plantation, number of plants sown/kanal and the amount of fertilizer applied.Keywords
Economic Evaluation, Handicrafts, Mapping, Sampling, Wicker WillowFull Text
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