G. Singh , T. R. Rathod , S. R. Baloch , Chandan Singh Purohit

Abstract

During study on vegetation diversity, 88 species of grasses and herbs were identified in 2005 and 2006 at Bara Nandara kho, Banswara (Rajasthan). Out of these, 14 species recorded as new arrival in the areas, when compared with the other existing literature of the region. These species are Brachiaria deflexa, Brachiaria setigera, Croton bonplandianum, Cyperus arenarius, Eragrostis aspera, Euphorbia granulata, Indigofera sessiliflora, Justicia prostrata, Justicia simplex, Ocimum canum, Rhynchosia bracteata, Sporobolus nervosus, Stylosanthes fruticosa and Triumfetta rhomboidea. Out of these B. deflexa, B. setigera and C. arenarius are species of xeric environment; whereas the other species are of semi-arid or dry sub-humid region. Such changes in vegetation composition resulted from invasion of other species are indicative of variations in climatic and edaphic conditions in the region.

Keywords

Banswara District, Rajasthan, Flora, Additions

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N. Bala , Pramod Kumar , N. K. Bohra , N. K. Limba , S. R. Baloch , G. Singh

Abstract

Litter production varied greatly with plantation age and stem density in E. camaldulensis being high in 12-year-old plantation (6087 kg ha^-1). Lowest litter production was in 4-year-old plantation (2042 kg ha^-1). Bimodal pattern of litter fall was observed in younger plantation where, two peaks of varied intensity were observed in summer and winter. Overall, litter production was more in summer. Component wise, leaf litter accounted for the major part of the total litter production. It varied from 64% in 17-year-old plantations to 73% in 8-year-old plantations. Woody litter component varied from 16% to 23% in different age plantations. Bark litter also constitute a significant proportion of the total litter production rangingfrom 9-13%. Value of decomposition constant (k) was 0.1508, signifying very slow rate of decomposition. A significant positive relationship between annual total litter production and girth at breast height (GBH) as well as tree height was observed. Conclusively, lowrate of decomposition signified slow rate of nutrient turnover.

Keywords

Litter, Eucalyptus camaldulensis, Decomposition, Aridzone, Plantation

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N. Bala , G. Singh , N. K. Bohra , N. K. Limba , S. R. Baloch

Abstract

No abstract

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S. R. Baloch ¹, Lokho Puni ¹, Priya Sati ¹, B. P. Tamta ¹, Attar Singh ¹

Affiliations
1 Division of Non-Wood Forest Products, Forest Research Institute, Dehradun (Uttarakhand)

Abstract

Laboratory as well as field study was conducted on the one year old seed of Girardinia diversifolia during May 2010. Seeds were first moistened for 48 hrs and thereafter subjected to warm and cold treatment for 1 to 4 week duration. 0 Seed thereafter were put to germination test in Petridis plates on germination paper at 25 C in seed germinator. Germination was recorded after 15 days and continued up to 30 days. In field condition in green house result indicated that at low altitude site has intermediate philological dormancy and seed germination per cent was 25.8% can be overcome at natural site of Girardinia diversifoliawere average germination per cent in different soil media were 52.6% after 4 week.

Keywords

Fiber, Himalayan Nettle, Nursery Technology, Management Practices

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N. Bala ¹, G. Singh ¹, N. K. Bohra ¹, N. K. Limba ¹, S. R. Baloch ¹

Affiliations
1 Division of Forest Ecology, Arid Forest Research Institute, New Pali Road, Jodhpur – 342005, IN

Abstract

An attempt was made to remove excess water from the land through bio-drainage and to increase vegetation cover and productivity of a waterlogged area in Indian desert. Area protection, soil working and plantation of Eucalyptus camaldulensis, E. fastigata, E. rudis and Corymbia tessellaris on raised bunds, improved vegetation cover with simultaneous decrease in water table. Performance of E. rudis was best with respect to growth, biomass, transpiration rate and overall bio-drainage potential. E. rudis maintained uniform transpiration and photosynthesis rate throughout the year. Ground water level receded by 145 cm in E. rudis plot compared to 90 cm, 70 cm and 60 cm in C. tessellaris, E. camaldulensis and E. fastigata respectively within a period of four and half year. Soil organic carbon, electrical conductivity, NH and NO - N were high in E. rudis and low in E. fastigata. The results suggests that E. rudis has high 4 3 potential to be used as an efficient bio-drainage species in canal command waterlogged area of Indian desert. Apart from the planted species, Prosopis juliflora, Tamarix dioca and Saccharum munja also have come up in the area with recession of ground water table as natural succession and contributed significantly for further lowering of ground water table and increasing productivity.

Keywords

Biodrainage, Biomass, Eucalyptus Rudis, Transpiration, Waterlogging

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