Nelumbo - The Bulletin of the Botanical Survey of India

J. N. Singh ¹, M. K. Ghosh ¹

Affiliations
1 Botanical Survey of India, Howrah, IN

Abstract

The eco-pedon system of the protected premises of the Indian Botanic Garden, located along the river Hooghly in the lower gangetic plain in the district of Howrah, has been studied with a conservational point of view to understand the indiscernible phenomenon of the impact of the river water on the garden eco-pedo-chemical characteristics often submerged due to occasional tidal inundations of the river during the monsoons.

It is experimentally revealed that a chemically dilute river water siphons off the mineral riches of the submerged soil system during flash floods. The intensity of mineral erosion is noted to be directly proportional to the periodic length of submergence of the soil system notwithstanding its natural revamping capacity.

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J. N. Singh ¹, V. Mudgal ¹

Affiliations
1 Botanical Survey of India, Howrah, IN

Abstract

The edaphic conditions of the habitat of Coptis tetla Wall. have been discussed. The soils, where this species grows either under cultivation or in wild are moderately acidic to highly acidic, poor in surface porosity, very rich in silica content and possess insufficient amount of inorganic binding agents. However, the soils in cultivated fields are satisfactory in organic carbon status, water-holding ability and cation exchange capacity but inadequate presence of liming material and temperate climate adversely effect their energy materials. The 3oils at Malenja where this species is growing wild have textural limitation and anthropogenic interference. In the end the paper is concluded with suggestions. Results depict that the reasons for rarity and depletion of this species are not only anthropogenic but also environmental.

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J. N. Singh ¹, M. K. Ghosh ¹

Affiliations
1 Botanical Survey of India, Howrah, IN

Abstract

Nine large lakes out of twenty five occurring in the Indian Botanic Garden, Howrah, have been studied for bio-aquatic nature. The Characteristics of stational parameters are discussed. It is held that the disposition so the lakes vis-a-vis temporal changes and the human interferences are responsible factors affecting Proper conservation of these water bodies.

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J. N. Singh ¹, A. R. K. Sastry ¹

Affiliations
1 Botanical Survey of India, Howrah, IN

Abstract

No Abstract.

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J. N. Singh ¹, M. K. Ghosh ¹

Affiliations
1 Botanical Survey of India, Howrah, IN

Abstract

No Abstract.

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J. N. Singh ¹

Affiliations
1 Botanical Survey of India, Howrah, IN

Abstract

Under the present investigation, for preserving the Great Banyan Tree (Ficus benghalensis L.) of religious, tourism and botanical significance,-its ischolar_main environment has thoroughly been investigated which was not yet been explored. From the results it is clear that the entire soil which is supporting nearly 95-98% soil-propischolar_main system is quite low in organic carbon content and consequently resulting into its unfavourable physico-chemical properties. A few important physico-chemical properties have been tabulated and at the end some valuable suggestions are given.

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J. N. Singh ¹

Affiliations
1 Botanical Survey of India, Howrah, IN

Abstract

Ecological factors of Edapho-Microbial Nature, Bio-aquatic nature, Chemical nature of Hooghly river waters and their impact on the eco-pedon system of IBG have been analysed and are presented here with the objective to aid in scientific management of this unique Botanic Garden. Emphasis is laid on the seasonal variations in the factors governing the ecology of the garden. The paper is concluded with some suggestions for upkeep of the balanced ecology of Indian Botanic Garden (IBG).

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J. N. Singh ¹

Affiliations
1 Botanical Survey of India, P. o. Botanic Garden, Howrah - 711 103, IN

Abstract

The present investigation is aimed at to study the incidence of grass species at varied elevations alongwith their hydro-edaphic characteristics in Nilgiris Biosphere Reserve, Tamil Nadu. The results show that grasses exhibit high species diversity and some confine to lower elevation (range 500 m to 1500 m); while others to higher elevation (range 1800 m to 2750m). Some others show no elevation impact (range 850 m to 2750 m). The edaphic characteristics and soil systems associated with the grasses are ecologically balanced at present, barring soil of Mashinaguri grass field, which is highly fragile. The soils irrespective of their location and elevation possess a high pool of energy materials (1.86% to 4.96%), clays (36.8% to 57.8 %) and exhibit good water holding capacity (72.2% to 94.8%). They are feebly to moderately acidic (ph 4.4 to 5.8), moderate to high silica content (65.6% to 85.1%) and with sesqui-oxides producing a low silica/sesqui-oxides ratio. Soil saps are dominated by calcium within cations and bicarbonate within anions. Waters are neutral to feebly alkaline, bereft of charge carrying particles but dominated by calcium ions. The hydro-edaphic chemistry appears quite conductive to the flora and fauna of the area.

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