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Sharma, D. C.
- Biomass Production and Mineral Cycling in Plantation Ecosystems of Eucalyptus Hybrid in Haryana 2. Distribution and Cycling of Nutrients
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Indian Forester, Vol 122, No 1 (1996), Pagination: 30-38Abstract
Mineral cycling in four different aged Eucalyptus hybrid plantations bas been discussed. The componentwise distribution of nutrients at different ages and the nutrients removed as a result of whole tree harvesting has been presented. A total of 4565. 5242, 10236 and 9992 kg/ha of Jitter was produced annually at ages 4, 6, 8 and 10 years respectively. Out of the total litter, leaf litter contributed between 73 to 82 per cent, thus maximum nutrients are returned to the soil through leaf litter. Maximum return was observed for Nitrogen fonowed by Calcium, Potassium, Magnesium and Phosphorus.
- Leaf Litter Production and Decomposition in Dalbergia sissoo and Bombax ceiba Plantations in Uttar Pradesh
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Indian Forester, Vol 120, No 8 (1994), Pagination: 682-688Abstract
Annual leaf litter fall was estimated in plantations of Dalbergia sissoo and Bombru ceiba as 1893 and 1303 kg/ha. The corresponding decomposition parameters were estimated as 1.32 and 1.67 respectively. Time required for various levels of decay has been worked out and mineralsation of nutrients has also heen discussed.- Organic Productivity and Mineral Cycling in Plantations of Populus deltoides in Tarai Region of Uttar Pradesh
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Indian Forester, Vol 117, No 8 (1991), Pagination: 596-608Abstract
Componentwise biomass production and cycling of minerals in five different aged plantations of Poplus deltoides have been discussed. Correlation coefficient and regression models were worked out separately for each biomass component, total above-ground biomass and total biomass. Linear regression analysis was carried out. The predictor variable D.B.H. and D2H were tried. Correlation coefficients obtained were found to be highly significant in both the cases. Easily measurable parameter D.B.H. has been used in this paper. The total above-ground biomass of these stands ranges between 27 t/ha to 192 t/ha. Maximum amount of N, P, K and Mg were contained in bole while higbest accumulation of Ca was observed in bark. A total of 1354, 1942, 2888 and 2472 kg/ha of litter was produced annuany at ages 3, 5, 7 and 9 years respectively. Of the total annual litter, lear contributed maximum between 69.5% to 85.2%. The cycling of mineral through litter ran has also been discussed.- Biomass Production and Dtstribution of Nutrifnts in 20 Years Old Teak (tectona grandis) and Gamar (Gmelina arborea) Plantation in Tripura
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Indian Forester, Vol 116, No 9 (1990), Pagination: 681-686Abstract
This paper deals with the results of a study on biomass preduction and distribution of nutrients carried out in 20 years old teak and gamar plantations in Teliamura Forest Division in Tripura State during January, 1987. The resulls of the studies indicated that the productivity for teak comes out to be 6.9 tons/ha/year and 8.2 tons/ha/year for gamar.- Problems of Sal Forests - an Analysis
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Indian Forester, Vol 115, No 8 (1989), Pagination: 513-525Abstract
In this paper various causative factors responsible for sal mortality have been discussed and some remedial measures have also been suggested. An account of the development of silvicultural research on sal for the last many decades has also been presented and emphasis has been laid on tbe study of forest types, succession, natural regeneration and preservation plots as useful guides for silvicultural practices.- Comparative Assessment of Methods for Estimating Biomass in Forest Ecosystem
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Indian Forester, Vol 114, No 3 (1988), Pagination: 136-144Abstract
The paper describes various methods of biomass estimation in forest ecosystems with their limitations and applicability. Some comparisons have also been made between the conventional stratified tree techniques and other methods and the regression technique has been found to be satisfactory for wider application or where the destructive sampling is not desirable.- Biomass, Productivity and Nutrient Cycling in a Dalbergia sissoo Plantation
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Indian Forester, Vol 114, No 5 (1988), Pagination: 261-268Abstract
The biomass, prductivity and nutrient cycling in a 24 year old Dalbergia sissoo plantation have been discussed in this paper. Out of the total above-ground biomass of 162 metric tonnes/ha the ischolar_mains contribute 15.4 per cent. Maximum concentration of nitrogen was observed in leaf and minimum in the bole. The highest concentration of calcium was found in bark and least in the bole. As compared with the annual uptake of nutrients, 63 per cent N, 50 per cent P, 48 per cent K, 67 per cent Ca and 57 per cent of Mg are returned to the soil annually through litter fall.- Biomass Estimation of Two Eucalyptus Species by Regression Method
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Indian Forester, Vol 113, No 3 (1987), Pagination: 180-184Abstract
A set of regression lines has been obtained from the biomass data of Eucalyptus species growing in Tamil Nadu and using these equations, it is possible to predict the biomass from the measurement of diameter and height, without felling the trees.- Initial Spacing in Eucalypt Planting
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Indian Forester, Vol 113, No 5 (1987), Pagination: 315-322Abstract
A comprehensive account of spacing trials of eucalypts carried out in India and abroad has been presented in this paper. Some silvicultural aspects and the site factors affecting the initial spacing have also been dealt with and conclusions drawn on the basis of the results obtained with these trials.- Distribution of Nutrient in an Age Series of Eucalyptus globulus Platation in Tamil Nadu
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Indian Forester, Vol 110, No 9 (1984), Pagination: 944-953Abstract
The distribution of nutrients in six blue gum (E. globulus) plantations of different ages growing in Tamil Nadu bas been discussed. As a result of harvesting tbe bole (59% of total biomass) only at the age of 7 years will result in the removal of nearly 44% (N and P), 29% (K) 7% (Ca) and 24% (Mg). The same plantation when harvested at the age of 16 years with a bole biomass of 74.3% will cause the removal of 55% of N, 65% of P. 22% of K, 13% of Ca and 27% of Mg.- Biomass Distribution and Productivity in a Poplar Plantation
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Indian Forester, Vol 109, No 11 (1983), Pagination: 822-828Abstract
The distribution of biomass in various tree components and productivity of a 8 years old plantation of Populus deltoides have heen discussed. The total biomass is of the order of 86 tonnes/ha of which 83 per cent is being contributed by the above-ground parts and 17 per cent by the ischolar_mains.- Organic Matter and Plant Nutrient Distribution in a Chir (Pinus roxburghii) Plantation
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Indian Forester, Vol 107, No 2 (1981), Pagination: 86-94Abstract
The distribution of dry matter and plant nutrients in various tree components for a 44 years old chir (Pinus roxburghji) plantation crop have been discussed. As a result of harvesting, nearly 62 to 87 per cent of the above-ground nutrients contained in the stand are removed.- Distribution of Organic Matter and Plant Nutrients in a Sal (Shorea robusta) Coppice Plantation
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Indian Forester, Vol 106, No 2 (1979), Pagination: 171-179Abstract
The dry matter production by different tree componenta and the distribution of nutrients for a 21 year old sal (Shorea rabusta) coppice crop have been discussed. The estimated amounts of various nutrients that would be removed in harvesting at that age, would range from 82% to 91% of the nutrients contained in the stand as kg/ha- Organic Matter and Plant Nutrients in a Teak (Tectona grandis) Plantation
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Indian Forester, Vol 105, No 8 (1979), Pagination: 573-582Abstract
Estimates of dry matter production and nutrient content of a 38 years old teak (Tectona grandis) plantation as obtained by the Mean tree technique and the Stratified tree tecbnique have been presented in this Paper. The total standing biomass as obtained by tbe Mean tree technique is abont 27% less Than that obtained with Stratified tree technique. A similar trend was observed when comparing the nutrient content of this stand by these two methods.- Forest Types Statistics
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