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Geo-spatial approach for phytodiversity characterization in Panna National Park (part), M.P. (India)
Panna National Park is situated in the north-central part of Madhya Pradesh, India. Landscape parameters like fragmentation,
porosity, patchiness and jaxtaposition have been analysed for disturbance gradient characterization. Disturbance on biodiversity
due to human activities has been studied both qualitatively and quantitatively. The species richness is highest in northern
mixed dry deciduous forest followed by dry deciduous open scrub and southern tropical dry deciduous teak forest. Species richness
of the open thorny dry deciduous forest with grasses is found to be the lowest. Disturbance analysis indicates that 22.02%
of the southern slightly moist teak forests are highly disturbed whereas Anogeissus forest and Riverine forest have 17.04% and 12.41% of the area under high disturbance, respectively. A total of 88 field sample
plots were laid to enumerate trees, shrubs, herbs, climbers, etc. Biological richness parameters such as Shannon-Wiener biodiversity
index, biodiversity value, ecosystem uniqueness were derived from field data. High biological richness is found in northern
mixed dry deciduous forest and mixed dry deciduous forest with bamboo. More than 99% of such areas are falling under medium
to high biological richness. Nearly 55% of the gentle and flat to gentle, slope categories were found to have low biological
richness.
Phytosociological analysis of sampled field data indicated that the number of trees per unit area is the lowest in the Savannah.
In inaccessible areas, the species richness and number of trees per unit area is very high. Main forces causing disturbance
are search for diamonds, dams on river Ken, settlements in and around the park, grazing and resource utilization by villagers
for fodder, animal grazing, fuel-wood, timber, etc. 相似文献
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Drinking water quality in villages of southwestern Haryana,India: assessing human health risks associated with hydrochemistry 总被引：1，自引：0，他引：1
Vinod K. Garg Surindra Suthar Sushma Singh Aleenjeet Sheoran Garima Meenakshi Sandeep Jain 《Environmental Geology》2009,58(6):1329-1340
The chemical quality of groundwater of western Haryana, India was assessed for its suitability for drinking purposes. A total
of 275 water samples were collected from deep aquifer based hand-pumps situated in 37 different villages/towns of Bhiwani
region. The water samples were analyzed for different physico-chemical properties, e.g., pH, total dissolved solids (TDS),
total harness (TH), total alkalinity (TA), calcium, magnesium, carbonate, bicarbonate, sulphate, chloride and fluoride concentrations.
In this study, the average TDS content was greater ranging 1,692 (Bhiwani block) to 2,560 mg l−1 (Siwani block), and other important parameters of water, e.g., TA (442–1,232 mg l−1), TH (437–864 mg l−1) and bicarbonate (554–672 mg l−1), were also higher than maximum permissible limit by WHO or BIS. The fluoride appeared as a major problem of safe drinking
water in this region. We recorded greater fluoride concentration, i.e., 86.0 mg l−1 from Motipura village that is highest fluoride level ever recorded for Haryana state. The average fluoride concentration ranged between
7.1 and 0.8 mg l−1 in different blocks of western Haryana. On the basis of fluoride concentration, Siwani block showed the maximum number of water samples (84% of total collected samples) unsuitable for drinking purposes (containing
fluoride >1.5 mg l−1) followed by Charki Dadri block (58%), Bhiwani block (52%), Bawani Khera block (33%) and Loharu block (14%). This study clearly suggest that some health deteriorating chemicals in drinking water were at dangerous level and;
therefore, water quality could be a major health threat for local residents of western Haryana. The high fluoride level in
drinking water has posed some serious dental health risks in local residents. 相似文献
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