PhD Theses (SACON)
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Item Climate Change and Local Perception in Rajouri District, Jammu Region, Western Himalayas, India(SACON, 2016) Zeeshan, Mohd; Azeez, P.A.Climate change is a global issue that poses serious threats to wide-ranging aspects in the biosphere of which ecological security, biodiversity and livelihood are the most explicit ones. The Himalayas, unique in terms of geological and environmental settings, habitats, ecosystems and cultural diversity, is identified as highly vulnerable to climate change. In view of the reported rise in temperature in the Himalayas and gaps in related information, the present study was undertaken in Rajouri of Jammu region, Western Himalayas, India. The study explored global climate change. people's perception and engagement along with baseline study on vulnerable sectors such as water and agriculture in Rajouri districtItem Avian Species selection in Urban Habitats: A study in Coimbatore, India.(SACON, 2013) Rajini, J.; Azeez, P.A.Survival of a species is closely associated with changing habitats. We studied this in the context of urbanization that brings massive changes in the landscape. The study is contextual in view of high rates of conversion of natural landscapes into urban areas. With the ascent of urbanization, many species disappear while some species become abundant. The present study investigated avian species and their distribution along a rural-urban gradient of the Coimbatore city - a fast growing city in Tamil Nadu, India. The study was taken up to explore the factors that affect the distribution of avian species across an urbanisation gradient and to identify survival strategies adopted by avian species in urban areas.Item Nutrients and Metals in Soils and Vegetation of Araku, Andhra Pradesh, India(SACON, 2010) Chandra, Rachna; Azeez, P.A.Industrialization and urbanization in past few decades have caused tremendous ecological repercussions, which could be best seen in mining/extractive industry. India is endowed with a wide range of mineral wealth, and large scale mining activities are happening in various places in the country. Some important effects due to mining activities are the change in land use pattern and the associated changes in distribution of plants, animals, water bodies and soil system. Reclamation and reforestation of mined out areas have become necessary due to stern environmental laws in effect in the country, although exceptions are widely seen. The vegetation grown in mine sites is anticipated to accumulate or selectively exclude/tolerate high levels of toxic metals. Several of the soil characteristics can be playing important role in mobility of nutrients and metals in soil system. Thus, knowledge about these soil properties becomes obligatory as assessment of their distribution on a spatio-temporal scale would help better understand their likely mobility and bioavailability. The present investigation undertaken in three proposed mining locations at Araku, Andhra Pradesh, India during 2006 through 2008 is an attempt to examine the nutrients, alkali and alkaline earth metals, select heavy metals across the soil layers, and also alkali and alkaline earth metals, and select heavy metals in organs of select predominant plant species in the area. These species were primarily screened out on the basis of their ability so that they can be used during the initial stages of mine restoration programme, after the mining activities are ceased. As hyperaccumulators take up particularly high amounts of metals in their shoots, an attempt was made to assess the trace and heavy metal from view point of Transportation index (Ti = (metal concentration in leaf] / [metal concentration in root]) in various organs/compartments of the select plant species naturally occurring in the area.Item Techno-Economic Assessment of Physio-Chemical and Anaerobic Treatment of Textile Wastewater from the Textile Industrial Clusters in Tiruppur.(SACON, 2008) Baladhandapani, M.; Azeez, P.A.The HUASB reactor was started successfully using real textile effluent. The treatability study carried out for the textile effluent using the reactor revealed that such low strength textile wastewater could be treated by the system efficiently. The HUASB attained steady state condition on 135'th day at an OLR of 0.60 kg COD/m³ /day. The normal operation of the HUASB reactor lasted from OLR of 0.60 to 0.81 kg COD/m³ /day. The VFA content varied from 90 to 111 mg/L during the stable operation period. The maximum VSS and TSS removal was 64.5 and 73% respectively. Biogas generation was maximum (566.7 mL/day) at 0.81 kg COD/ml/day OLR. The HUASB system was more effective in organics removal than physio-chemical treatment in operation in the CETPs in Tiruppur.Item Distribution of select nutrients and metals in the soils of a wetland-terrestrial ecosystems complex: A Case Study of Keoladeo National Park, Bharatpur, India.(SACON, 2007) Prusty, Anjan Kumar B.; Azeez, P.A.The present study reports the pedological characteristics along the soil profile in a mixed habitat system (woodland. wetland and grassland) with emphasis on selected nutrient elements. alkali and alkaline earth metals, and heavy metals. The main purpose of this study was to examine the distribution pattern of nutrients, alkali and alkaline earth metals and heavy metals on a spatio- temporal scale. Soil samples collected at depths of O, 25, 50, 75 and 100 cm were examined with respect to certain select Physico-chemical parameters following standard methods and was found to differ considerably in their nutrient contents.