Changes in the population structure, growing stock and physico-chemical properties of soil in different deodar forests of Garhwal Himalaya: a revisitation study over 15 years

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dc.contributor.advisorKhanduri, Dr.V.P.
dc.contributor.authorRamola, Gaurav Chand
dc.date.accessioned2016-12-17T09:45:40Z
dc.date.available2016-12-17T09:45:40Z
dc.date.issued2016-07
dc.description.abstractCedrus deodara is a majestic evergreen tree distributed in the Mediterranean region and the western Himalayas. It is native to the western Himalayas mainly in Afghanistan, Northern Pakistan, Northern India (Himachal Pradesh and Uttarakhand) and South-western (mostly Tibet and Western Nepal) occurring at 1,500–3,200 m (4,921–10,499 ft) altitude. It is a large evergreen coniferous tree reaching 40–50 m (131–164 ft) tall, exceptionally 60 m (197 ft) with a trunk up to 3 m (10 ft) in diameter. It has a conical crown with level branches and drooping branchlets. Total area under Deodar forest in India is estimated to be about 203263 ha. In 2000, Bhatt et al. studied the five different forests of deodar at five sites namely Ghimtoli, Dhanolti, Dewarkhal, Devidhar and Jhandidhar in order to know the population structure, growing stock and physico-chemical properties of soil. The present study was also conducted on the same sites mentioned above by recognizing GPS location of the earlier study as the re-visitation study, which was aimed to understand the changes in population structure, growing stock and the various physico-chemical characteristics of soil of Cedrus deodara forests of Garhwal Himalayas over a period of 15 years. The changes in population structure, growing stock and physico-chemical properties of soil over 15 years, assessed by laying out five 0.1 ha sample plots randomly on each location. Enumeration of trees for volume, population structure and growing stock variation was done by measuring girth and height individually for all the tress in the sample plots. Further, data collected from stand were computed for dbh, basal area, volume, stand density and Total Basal Cover. The GSVD (growing stock volume density) were examine for variation of growing stock and percentage relative density was use for the analysis of population structure. The composite soil samples were collected from each sample plot at three different soil depths. The standard method was used to analyzed the soil sample. To study the Physico-chemical properties of soil various parameter viz. Soil organic carbon, available phosphorus, available potassium, pH and moisture content % was analyzed. The outcome of the study revealed that the values of dbh, basal area, height, volume, stand density and TBC ranged from 42.32 to 51.70 cm, 1.49 to 2.02 m2 trees-1 , 27.05 to 38.33 m, 1.60 m3 tree-1 to 3.51 m3 tree-1, 344 to 420 ind. ha-1 and 53.22 to 79.61 m2/ha, respectively. The maximum values of growing stock was recorded in Dewarkhal (Uttarkashi) (1132.85±87.19 m3 /ha), which was followed by Jhandidhar (Pauri) 928.81±28.04 m3 /ha, Dhanolti (Tehri Garhwal) 823.32±79.90 m3 /ha, Ghimtoli (Rudraprayag) 619.55±71.59 m3 /ha and minimum was recorded in Devidhar (Rudraprayag) 515.37±87.19 m3 /ha. The maximum (37 %) population was observed in Dhanolti site under 50-60 cm diameter class, compared to all other sites. Values of soil organic carbon, available phosphorus, available potassium, pH and moisture content % ranged between 0.24 to 0.68 %, 7.76 to 64.21 kg/ha, 63.5 kg/ha to 406.6 kg/ha, 5.07 to 5.87, 14.72 % to 41.99 % respectively. On the basis of field and analytical findings, it may be concluded that healthy growth of stand structure was observed in the forest of Dewarkhal and Jhandidhar. The population structure study observed in different Deodar forest was from young to mature growth in trees in natural forests. Dhanolti , Ghimtoli and Devidhar site showed the maximum percent of population than all other the sites in middle diameter classes .Soil nutrient were found decreases with increasing soil depth. pH was slightly acidic in all sites.en_US
dc.identifier.urihttp://krishikosh.egranth.ac.in/handle/1/90734
dc.language.isoenen_US
dc.publisherCollege of Forestry, Ranichauri campus, V.C.S.G Uttarakhand University of Horticulture and Forestryen_US
dc.relation.ispartofseriesth;212
dc.research.problemChanges in the population structure, growing stock and physico-chemical properties of soil in different deodar forests of Garhwal Himalaya: a revisitation study over 15 yearsen_US
dc.subSilviculture
dc.themeChanges in the population structure, growing stock and physico-chemical properties of soil in different deodar forests of Garhwal Himalaya: a revisitation study over 15 yearsen_US
dc.these.typeM.Sc
dc.titleChanges in the population structure, growing stock and physico-chemical properties of soil in different deodar forests of Garhwal Himalaya: a revisitation study over 15 yearsen_US
dc.typeThesisen_US
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