12-14 September, 2011, Lucknow - Earth Science India

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National Conference on Science of Climate Change and Earth’s Sustainability: Issues and Challenges ‘A Scientist-People Partnership’ 12-14 September, 2011, Lucknow Increase in agricultural production through organic process would satisfy parameters of sustainability, social acceptance and economic viability. All this is possible with direct assistance of animal population. It is beyond doubt that agriculture is not an industry. Industry is for the rich while agriculture is for the poor. Vice-versa is not true. Agriculture provides food for all. Animal’s solid waste is an asset for the mankind. They serve the mankind sincerely throughout their life. They do not affect the balance of nature – air, water and food. They have everything man needs – fertilizer, pesticide and energy. Human beings ‘only talk’ of ‘green economics’ while animals live and maintain ‘green economy’ by themselves. Humans need to learn from these animals. The active support of these animals should be utilized (not exploited). The treatment of animal waste will take place in cottage industry model at family level in the villages. The village economy and hence the national economy will undergo drastic change. The potential of this sector in India is worth about $ one trillion per year. CLIMATE INDUCED LATE-HOLOCENE ECOLOGICAL CHANGES IN PICHAVARAM ESTUARY Jyoti Srivastava 1 , Anjum Farooqui 1 , S.M. Hussain 2 and Vandana Prasad 1 1 Birbal Sahni Institute of Palaeobotany, 53 University Road, Lucknow -226007 2 University of Madras, A.C. College Campus, Chennai-600025 email: caprice2628@yahoo.com Variation in the preservation of biotic forms in chronological order has been studied in ecological perspective in two 2.5 and 5m deep sediment cores deposited since ~3440 yrs BP and ~3630 yrs BP, respectively in the central part of Pichavaram mangrove wetland, Cauvery river delta. The preservation of organic matter is mainly in clay to silty clay sediments which constitutes remains of fresh water algal matter, fungal remains, dinoflagellate cysts, thecamoebians, foraminifera and loricated tintinid remains. The percentages of these vary in the sediment cores indicating 4 different ecological zones. The Phase I (~3630-3190 yrs BP) shows a stabilized estuarine ecosystem with a warm and humid climate coupled with moderate monsoon condition. Phase II (~3190-2750 yrs BP) reveals a high fluvial energy condition suggesting climatic amelioration from warm and humid to dry and arid. Phase III (~2750-760 yrs BP) shows a dry and arid climate coupled with weakened monsoon and Phase IV (since ~760 yrs BP) shows a stratified estuarine condition with low fluvial energy favoring the growth of both fresh water and marine forms. Overall palynological and 58
National Conference on Science of Climate Change and Earth’s Sustainability: Issues and Challenges ‘A Scientist-People Partnership’ 12-14 September, 2011, Lucknow sedimentological results reveal a climate shift from warm and humid (~3630-3190 yrs BP) to dry and arid (~2750-760 yrs BP). However, similar cyclicity of warm and humid climate is evident since 760 yrs BP. The fluctuation in sea level during these phases may be attributed to climatic and hydrostatic changes in the Pichavaram wetland. ANTIFUNGAL POTENTIAL OF METABOLITES PRODUCED BY ASPERGILLUS SPP. AGAINST FUSARIUM OXYSPORUM F.SP.LINI S.K. Dwivedi and Sangeeta Bhushan * Department of Environmental Science, Babasaheb Bhimrao Ambedkar University Lucknow-226025 * email: sangibhushan7184@gmail.com For eco-friendly and sustainable management of the linseed wilt, antagonistic activity of four species of Aspergillus viz., A. flavus, A. niger, A. luchuensis and A. sulphureus were evaluated in vitro against Fusarium oxysporum f. sp. lini at different concentrations causing wilt disease in linseed. It was found that maximum inhibition of Fusarium oxysporum f. sp. lini was recorded by A. flavus and A. luchuensis at 75% concentration followed by A. niger and A. sulphureus. The result obtained indicates that these may be exploited in field condition to control the growth of the pathogen. USES OF WILD PLANT RESOURCES BY FOREST DEPENDENT COMMUNITIES IN SOUTHERN INDIA Harisha R.P., Ramesh Kannan, N.A. Aravind and G. Ravikanth Ashoka Trust for Research in Ecology and the Environment (ATREE), Bangalore email: hari@atree.org The Malai Maadeshwara Reserve Forest (MM Hills) is located in the Chamarajanagara district of Karnataka. It comprises different types of vegetation such as dry deciduous forest (64.34%), scrub woodland (20.50%), scattered patches of moist deciduous and riparian forest (2.47%) and serves as an important elephant corridor between sanctuaries. It receives an average annual rainfall of 900 mm. There are about 16 settlements (villages) mainly belonging to Soliga and Lingayath communities scattered within the reserve forests who also exert tremendous pressure on the forests for agriculture, NTFP harvesting, fuel wood collection, road 59
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12-14 September, 2011, Lucknow - Earth Science India

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