Information on land use/land cover in the form of maps and statistical data is very vital for spa... more Information on land use/land cover in the form of maps and statistical data is very vital for spatial planning, management, and utilization of land. Land-use and land-cover (LULC) scenario in India has undergone a radical change since the onset of economic revolution in early 1990s (Roy et al. in J Geophys Res 112:D21108, 2007).
The variety and variability among living organisms from all sources, terrestrial, marine, and oth... more The variety and variability among living organisms from all sources, terrestrial, marine, and other aquatic ecosystems and the ecological complexes of which they are a part; is diversity within species, between species, and of ecosystems (Convention on Biological Diversity). In addition, the biodiversity in simplest way can be defined as “sum total species richness of a given area”.
International journal of ecology and environmental sciences, 2017
Anthropogenic activities such as the use of pesticides in agriculture field, intensive grazing, a... more Anthropogenic activities such as the use of pesticides in agriculture field, intensive grazing, and human interferences can affect spider populations and assemblages. The Uranium Corporation of India Ltd (UCIL), a Government of India enterprise under the Department of Atomic Energyhas setup uranium ore mining site at Gogi, Yadgir District of Karnataka in 2012. Therefore, this study was undertaken as baseline to understand the status, population, and distribution of spiders in different ecosystems viz., natural, agro, and domestic ecosystems of a semiarid region in southern India. The natural and agroecosystems were further divided into three habitats each: the natural ecosystems: grasslands, treescapes (land dominated by trees) and barren land; the agroecosystems: red gram field, rice paddy field and cotton field. Spider assemblages were sampled using pitfall traps, beating and netting for density, abundance and frequency measurements in all the selected habitats. A total of 82 spid...
Birds are highly diverse and noticeable biota of the ecosystem. They are the potential bio-indica... more Birds are highly diverse and noticeable biota of the ecosystem. They are the potential bio-indicators of every ecosystem. Presently birds’ population is decreasing rapidly due to several factors such as unplanned development activities, climate change, urbanization etc. The main objective of this study is to prepare a checklist of avifauna in the study region enabling us to understand the diversity of avifauna. Present study was conducted in Chillavaripalli and Ellutla Reserve forests located in Anantapur district of Andhra Pradesh. Complete avian survey has been conducted for one year from October 2015 to September 2016 in and around the study area, which extends to over 201538 Sq. Km. of mosaic habitat of agriculture scrub, grassland, and rice fields. We adopted standard methods for Survey in the study area and identified a total 119 avian species of 51 families. A comparative study of these populations in different habitats was been also carried out studied of which agriculture l...
Abstract The strategies to contain the spread of COVID-19 pandemic, including restricted human mo... more Abstract The strategies to contain the spread of COVID-19 pandemic, including restricted human movement and economic activities, have shown positive impacts on the environment. Present research analysed the effects of COVID-19 led lockdown on air quality with special reference to major pollutants, namely nitrogen dioxide (NO2), carbon monoxide (CO), sulphur dioxide (SO2) and aerosol optical depth (AOD). The assessment has been conducted for megacities of India (Delhi, Mumbai, Bengaluru, Chennai and Kolkata) for four months, that is, March and April in 2019 and 2020 using Sentinel 5P and MCD19A2 data. A decrease in concentrations of air pollutants, specifically NO2 and SO2, has been observed during the lockdown period in all the cities; whereas CO and AOD have exhibited discrete pattern of spatio-temporal variation. Four megacities except Kolkata have revealed a positive correlation between NO2 concentration and population density. The results conclude overall improvement in air quality during COVID-19 led lockdown. The current situation provides a unique opportunity to implement a structural economic change that could help us move towards a city with low emission economy. Realizing the achievable improvement of air quality, the study suggests further in-depth research on source attribution of individual pollutants to assess the prospect of emission reduction actions.
Management of Environmental Quality: An International Journal, 2015
Purpose – The purpose of this paper is to examine the potential of biogas in India for energy con... more Purpose – The purpose of this paper is to examine the potential of biogas in India for energy conservation and its potential in emission reduction through proper manure management and utilizing the tappable droppings while replacing the conventional and non-conventional fuel. Design/methodology/approach – The authors have looked at the production, use and tappability of animal excreta for possible biogas generation and reduction in fuelwood consumption on one hand and emission reduction across the Indian states on the other. The average percentage of Biogas potential is created in the GIS database for analyzing the data set in the spatial domain using ArcGIS 9.2 software. Findings – The paper examines that unused manure contributes to the greenhouse gas (GHG) and has huge potential of reducing the emission through proper utilization across the Indian states. Keeping current climate change dilemma in view this could be one of the feasible options to cope with the climate change and m...
Management of Water, Energy and Bio-resources in the Era of Climate Change: Emerging Issues and Challenges, 2014
ABSTRACT Energy plays a crucial role in the socioeconomic development of the country as elsewhere... more ABSTRACT Energy plays a crucial role in the socioeconomic development of the country as elsewhere in the world. The past five-year period from 2004–05 to 2008–09 witnessed the economy grow at an average rate of 8.5%, despite the worldwide financial crisis affecting the second half of the five-year period. For the expected economic growth trend (8-9%) to continue during the Twelfth Five Year Plan (2012-2017), the nation requires an annual growth of 6.5% per year in energy supply (GOI, 2011). In India, nearly half of the commercial, primary energy demand is met by coal, but the share of coal in India’s total primary energy constitutes about 38%, while the contribution of non-commercial energy such as firewood, cattle dung and agricultural waste forms about 28% of the total primary energy consumed (GOI, 2006a, b).
Ministry of Environment and Forests, Government of India, recommended an impact assessment study ... more Ministry of Environment and Forests, Government of India, recommended an impact assessment study in view of the potential adverse impacts of windmill projects on terrestrial species of wildlife resulting from alternation and damage to habitats. In accordance with the broad terms of reference set by the Ministry, the present Herpatofaunal study was carried out in the proposed area of Windmill project and subsequently listed 30 reptile species belonging to 11 families. Varanus bengalensis and Python molurus Linnaeus, 1758 are the two reptile fauna belonging to SCHEDULE-I species of INDIAN WILDLIFE (PROTECTION) ACT, 1972. Totally one year were spent in assessing the distribution of herpetofauna. Visual Encounter Survey Method was followed for the collection of data. IUCN status of Recorded Herpatofauna are mostly Lower Risk least Concern least concern (LR-lc). In this study only the density of identified species was specified and calculated based on the average percentage of sightings ...
International Journal of Innovative Research in Science, Engineering and Technology, 2015
The present study was conducted in a semi arid region of Karnataka. The study discusses the phyto... more The present study was conducted in a semi arid region of Karnataka. The study discusses the phytoplankton diversity of the Gogi lake ecosystem. A standard methodology was followed in conducting to complete this study and samples were collected at different points from the lake ecosystem located at the core area of the proposed uranium mining site. Through a field survey, twenty one species of phytoplankton were recorded coming under four classes viz., Bacillariophyceae(8), Chlorophyceae(7),Cyanophyceae (5) Charophyceae (1) and twelve families and Fragilariaceae (4), Bacillariaceae (3), Zygnemataceae(3), Desmidiaceae (2), Oscillatoriaceae (2), Melosiraceae (1), Cladophoraceae (1), Scenedesmaceae (1), Microcystaceae (1), Nostocaceae (1), Phormidiaceae (1), Characeae (1). The data were collected over two seasons- March to May and September to November -2012. A total of 21 species were recorded from the study region of which 10 species were recorded during March to May, while 02 species...
Zooplanktons are microscopic organisms that have a criticcal role in aquatic ecosystems. Zooplank... more Zooplanktons are microscopic organisms that have a criticcal role in aquatic ecosystems. Zooplanktons are indicators of water quality and purity of aquatic ecosystems. The present study was carried out to study the species diversity and their seasonal changes in fresh water lake ecosystem located in semi-arid region of Karnataka. The study was conducted across the seasons of the year 2012. A standard methodology was followed during this study and the samples were collected during various seasons from the studied aquatic ecosystem. We recorded a total of 22 species of zooplanktons during the study period. Phylum Rotifers comprises 15 species, Cladocera 3, Copepoda 3 and Ostrocoda 1 species. A season wise analysis shows the maximum number of species during summer and the minimum number of species in rainy season. Species density was recorded high during summer season as compared to rainy season. The lake is shelter to many migrating bird species, fishes, aquatic plants and other insec...
Information on land use/land cover in the form of maps and statistical data is very vital for spa... more Information on land use/land cover in the form of maps and statistical data is very vital for spatial planning, management, and utilization of land. Land-use and land-cover (LULC) scenario in India has undergone a radical change since the onset of economic revolution in early 1990s (Roy et al. in J Geophys Res 112:D21108, 2007).
The variety and variability among living organisms from all sources, terrestrial, marine, and oth... more The variety and variability among living organisms from all sources, terrestrial, marine, and other aquatic ecosystems and the ecological complexes of which they are a part; is diversity within species, between species, and of ecosystems (Convention on Biological Diversity). In addition, the biodiversity in simplest way can be defined as “sum total species richness of a given area”.
International journal of ecology and environmental sciences, 2017
Anthropogenic activities such as the use of pesticides in agriculture field, intensive grazing, a... more Anthropogenic activities such as the use of pesticides in agriculture field, intensive grazing, and human interferences can affect spider populations and assemblages. The Uranium Corporation of India Ltd (UCIL), a Government of India enterprise under the Department of Atomic Energyhas setup uranium ore mining site at Gogi, Yadgir District of Karnataka in 2012. Therefore, this study was undertaken as baseline to understand the status, population, and distribution of spiders in different ecosystems viz., natural, agro, and domestic ecosystems of a semiarid region in southern India. The natural and agroecosystems were further divided into three habitats each: the natural ecosystems: grasslands, treescapes (land dominated by trees) and barren land; the agroecosystems: red gram field, rice paddy field and cotton field. Spider assemblages were sampled using pitfall traps, beating and netting for density, abundance and frequency measurements in all the selected habitats. A total of 82 spid...
Birds are highly diverse and noticeable biota of the ecosystem. They are the potential bio-indica... more Birds are highly diverse and noticeable biota of the ecosystem. They are the potential bio-indicators of every ecosystem. Presently birds’ population is decreasing rapidly due to several factors such as unplanned development activities, climate change, urbanization etc. The main objective of this study is to prepare a checklist of avifauna in the study region enabling us to understand the diversity of avifauna. Present study was conducted in Chillavaripalli and Ellutla Reserve forests located in Anantapur district of Andhra Pradesh. Complete avian survey has been conducted for one year from October 2015 to September 2016 in and around the study area, which extends to over 201538 Sq. Km. of mosaic habitat of agriculture scrub, grassland, and rice fields. We adopted standard methods for Survey in the study area and identified a total 119 avian species of 51 families. A comparative study of these populations in different habitats was been also carried out studied of which agriculture l...
Abstract The strategies to contain the spread of COVID-19 pandemic, including restricted human mo... more Abstract The strategies to contain the spread of COVID-19 pandemic, including restricted human movement and economic activities, have shown positive impacts on the environment. Present research analysed the effects of COVID-19 led lockdown on air quality with special reference to major pollutants, namely nitrogen dioxide (NO2), carbon monoxide (CO), sulphur dioxide (SO2) and aerosol optical depth (AOD). The assessment has been conducted for megacities of India (Delhi, Mumbai, Bengaluru, Chennai and Kolkata) for four months, that is, March and April in 2019 and 2020 using Sentinel 5P and MCD19A2 data. A decrease in concentrations of air pollutants, specifically NO2 and SO2, has been observed during the lockdown period in all the cities; whereas CO and AOD have exhibited discrete pattern of spatio-temporal variation. Four megacities except Kolkata have revealed a positive correlation between NO2 concentration and population density. The results conclude overall improvement in air quality during COVID-19 led lockdown. The current situation provides a unique opportunity to implement a structural economic change that could help us move towards a city with low emission economy. Realizing the achievable improvement of air quality, the study suggests further in-depth research on source attribution of individual pollutants to assess the prospect of emission reduction actions.
Management of Environmental Quality: An International Journal, 2015
Purpose – The purpose of this paper is to examine the potential of biogas in India for energy con... more Purpose – The purpose of this paper is to examine the potential of biogas in India for energy conservation and its potential in emission reduction through proper manure management and utilizing the tappable droppings while replacing the conventional and non-conventional fuel. Design/methodology/approach – The authors have looked at the production, use and tappability of animal excreta for possible biogas generation and reduction in fuelwood consumption on one hand and emission reduction across the Indian states on the other. The average percentage of Biogas potential is created in the GIS database for analyzing the data set in the spatial domain using ArcGIS 9.2 software. Findings – The paper examines that unused manure contributes to the greenhouse gas (GHG) and has huge potential of reducing the emission through proper utilization across the Indian states. Keeping current climate change dilemma in view this could be one of the feasible options to cope with the climate change and m...
Management of Water, Energy and Bio-resources in the Era of Climate Change: Emerging Issues and Challenges, 2014
ABSTRACT Energy plays a crucial role in the socioeconomic development of the country as elsewhere... more ABSTRACT Energy plays a crucial role in the socioeconomic development of the country as elsewhere in the world. The past five-year period from 2004–05 to 2008–09 witnessed the economy grow at an average rate of 8.5%, despite the worldwide financial crisis affecting the second half of the five-year period. For the expected economic growth trend (8-9%) to continue during the Twelfth Five Year Plan (2012-2017), the nation requires an annual growth of 6.5% per year in energy supply (GOI, 2011). In India, nearly half of the commercial, primary energy demand is met by coal, but the share of coal in India’s total primary energy constitutes about 38%, while the contribution of non-commercial energy such as firewood, cattle dung and agricultural waste forms about 28% of the total primary energy consumed (GOI, 2006a, b).
Ministry of Environment and Forests, Government of India, recommended an impact assessment study ... more Ministry of Environment and Forests, Government of India, recommended an impact assessment study in view of the potential adverse impacts of windmill projects on terrestrial species of wildlife resulting from alternation and damage to habitats. In accordance with the broad terms of reference set by the Ministry, the present Herpatofaunal study was carried out in the proposed area of Windmill project and subsequently listed 30 reptile species belonging to 11 families. Varanus bengalensis and Python molurus Linnaeus, 1758 are the two reptile fauna belonging to SCHEDULE-I species of INDIAN WILDLIFE (PROTECTION) ACT, 1972. Totally one year were spent in assessing the distribution of herpetofauna. Visual Encounter Survey Method was followed for the collection of data. IUCN status of Recorded Herpatofauna are mostly Lower Risk least Concern least concern (LR-lc). In this study only the density of identified species was specified and calculated based on the average percentage of sightings ...
International Journal of Innovative Research in Science, Engineering and Technology, 2015
The present study was conducted in a semi arid region of Karnataka. The study discusses the phyto... more The present study was conducted in a semi arid region of Karnataka. The study discusses the phytoplankton diversity of the Gogi lake ecosystem. A standard methodology was followed in conducting to complete this study and samples were collected at different points from the lake ecosystem located at the core area of the proposed uranium mining site. Through a field survey, twenty one species of phytoplankton were recorded coming under four classes viz., Bacillariophyceae(8), Chlorophyceae(7),Cyanophyceae (5) Charophyceae (1) and twelve families and Fragilariaceae (4), Bacillariaceae (3), Zygnemataceae(3), Desmidiaceae (2), Oscillatoriaceae (2), Melosiraceae (1), Cladophoraceae (1), Scenedesmaceae (1), Microcystaceae (1), Nostocaceae (1), Phormidiaceae (1), Characeae (1). The data were collected over two seasons- March to May and September to November -2012. A total of 21 species were recorded from the study region of which 10 species were recorded during March to May, while 02 species...
Zooplanktons are microscopic organisms that have a criticcal role in aquatic ecosystems. Zooplank... more Zooplanktons are microscopic organisms that have a criticcal role in aquatic ecosystems. Zooplanktons are indicators of water quality and purity of aquatic ecosystems. The present study was carried out to study the species diversity and their seasonal changes in fresh water lake ecosystem located in semi-arid region of Karnataka. The study was conducted across the seasons of the year 2012. A standard methodology was followed during this study and the samples were collected during various seasons from the studied aquatic ecosystem. We recorded a total of 22 species of zooplanktons during the study period. Phylum Rotifers comprises 15 species, Cladocera 3, Copepoda 3 and Ostrocoda 1 species. A season wise analysis shows the maximum number of species during summer and the minimum number of species in rainy season. Species density was recorded high during summer season as compared to rainy season. The lake is shelter to many migrating bird species, fishes, aquatic plants and other insec...
Uploads
Papers by Y D IMRAN KHAN