für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The term water quality is applied universally to refer to the water that meets the universal standards set for legitimate and vital water use at any scale i.e. local, regional and international levels. The evolution of the term water quality has been due to the expansion of water requirements and ability to measure and interpret water characteristics. The definition of water quality depends on the factors that determine it, and other variables that affect the nature of water resource. Pollution and degradation of water quality interferes with legitimate and vital water use at any scale i.e. local, regional and international levels. However, water quality standards have been established for regulatory purposes and are determined from judgment on the criteria involved in the standards dependent on domestic, agricultural, industrial and life in aquatic systems. River water quality status is generally affected by many physical, chemical and biological parameters introduced by natural forces and human (anthropogenic) activities. Water quality criteria, standards and related legislation are often used as the main administrative means to manage water resource. ····· 1036199678
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray In the present investigation, a domestic pond named Bangshal pond in old Dhaka was studied limnologically for one year. The Bangshal pond was excavated over 189 years ago. This pond providing ample surface water for the citizenry to wash and bathe. In the present investigation 40 genera were represented in the phytoplankton communities. All these genera belonged to six algal classes. The total number of phytoplankton species recorded in the present study was 122 of which 119 species were found to be reported for Bangladesh and 3 species were found as new report Bangladesh. Class wise distribution of those species was Euglenophyceae 39, Chlorophyceae 42, Bacillariophyceae 16, Cyanophyceae 19, Cryptophyceae 5 and Dinophyceae 1. The newly reported phytoplanktons are namely Euglena pusilla Playf, Lepocinclis fusiformis fa. Lemmermanii Conr and Phacus angulatus Pochm. Pond phytoplankton showed positive correlation with air temperature, water temperature, conductivity, pH, soluble reactive phosphorus (SRP), soluble reactive silicate (SRS), secchi depth, dissolved oxygen (DO), nitrate-nitrogen (NO3-N) and phaeopigment and chlorophyll-a. ····· 1036199668
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Basics of Environmental Studies by Prof. Dr. N. S. Varandani is intended to comprehensively address the requirements of environment course introduced by different universities at different levels of higher education. As the name suggests, the emphasis of this text is on the clear and concise presentation of the well-established scientific principles and concepts related to the environment. Written in a style that makes learning environmental science interesting and informative, the book covers various aspects of ecology, population, natural resources, energy, environmental pollution and current global environmental issues. With adequate use of web resources the book is full of latest information on all the topics. Key features of this text include : An emphasis on basic concepts, definitions, descriptions and relevant illustrations. Scientific principles are discussed in abbreviated form. End of chapter review questions facilitate student to prepare for the exams. Additional information presented in separate boxes to highlight the importance. The Basics of Environmental Studies is a valuable text book that students will refer to during college careers and beyond. ····· 1036199654
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Biodiversity is the variety and variability of plants and animal species on our planet. In the biodiversity rich state like Himachal Pradesh many development activities have been started which resulted, the loss of biodiversity. Therefore, present effort is made to know the impact of cement factory, ACC Ltd., Barmana, District Bilaspur, Himachal Pradesh, Inida. Total 217 species of vascular plants belonging to 68 families and 160 genera were recorded from the area indicating richness of the area in term of flora. Since, there is no base line information on the flora of the region affected by the factory to compare the present situation of flora with the earlier. Present study is focused to gather information about the Cement Factory, its impact on local inhabitants to understand the concept of biodiversity in reference to the study area and to inventories and analyze the flora of the region. The scientific information generated in this monograph is the first insight in the present status of vegetation of the area and help in developing adequate strategies and action plan for the management of the areas affected by developmental activities worldwide. ····· 1036199533
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This thesis deals with the effects of ZnCl2 and ZnO nanoparticles (ZnO NPs) on Pseudokirchneriella subcapitata (as a single species toxicity test) and aquatic microbial communities (as a community-level toxicity test). The effects of metal ions like Zn2+ on different organisms can be highly variable and there are some studies about the side effects of this metal ion on species occurring in aquatic microbial communities like bacteria, algae and diatoms however, the effects of metal ions on single species is probably not enough accurate to base risk assessment decisions on. In order to obtain environmentally more relevant information about the effects of xenobiotics there are other tests available known as community-level toxicity tests (SWIFT periphton test). The results of single species tests revealed that the toxicity of ZnCl2 and ZnO NPs without surfactant was dramatically high (EC50: 0.007-01 µmol/l). Although these compounds are known to be very toxic for Pseudokirchneriella subcapitata, the results of community-level toxicity tests (periphton SWIFT test) revealed that bulk and nano Zinc compounds do not have any specific toxic effects at concentrations lower than 100 µmol/l. ····· 1036199443
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The book introduces you to Dudhwa Landscape which has been greatly influenced by disturbance , whether natural or human induced. The land use changes, forest fragmentation, and altered river dynamics represent the most direct effects of human on this globally important landscape in Northern India. The study aimed to assess impact of these disturbing agents on Dudhwa Landscape and their effect on landscape spatial pattern, structure and composition of forest vegetation, channel planform changes and species of concern i.e. swamp deer. ····· 1036199382
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This book addresses the integrated analysis and management of ecological-social systems and argues that the rational integration of local participatory land use planning and regional planning could enhance the sustainable management of resources. This matter was explored in two eco-social systems: the Aysén river watershed in Southern Chile and the Marano lagoon in North East Italy. Aysén region is threatened by the risk of water pollution due to the development of intensive aquaculture in its fjords. Marano lagoon and its hinterland has been declared a polluted area of national concern since human health is threatened by the concentrations of heavy metals in air, soil and water sediments. The research investigates three key issues pertaining to the ecosystem based approach of environmental management within the framework of post-normal science: the consequences of the lack of strategic and integrated planning, the long-term failure of top-down visions in natural resources management and the usefulness of multicriteria analysis to support participatory decision making. ····· 1036199234
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray In this industrialized world the economic growth, growing electrical applications, increase oil prices and subsequent worldwide energy crisis prompted many countries to develop renewable sources of energy. Under these circumstances power planners are giving special attention to accelerated development of hydropower as an important energy resource. The study concludes that the financial analysis of the entire project indicates that Equity Internal Rate of Return without CDM involvement is 13.00% which is very low (considering emissions reductions the inflation rate of 6% in case of India) and the other hand with CDM involvement the internal rate of return is become 21.15%. The CDM revenue by sale of will raise the Equity IRR to respectable levels helping in the repayment of loan as soon as possible. The average annual emissions reductions due to the project activity for seven years crediting period has been calculated ex-ante as 17, 802 tCO2e per annum and CER generated from the project activity in the monitoring period of 29.10.2008 to 31.12.2009 is calculated as 20463.056 tCO2e per annum. ····· 1036199164
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The diversity of living organisms is essential for their capacity to evolve and adapt to environmental changes. Therefore, determining the factors responsible for the origin and maintenance of diversity remain central and fundamental research objective. The aim of this book was to understand the evolutionary factors maintaining neutral polymorphism. Using a biological model consisting of the bacterium Escherichia coli and the social amoeba Dictyostelium discoideum enable us to study the natural variability of interactions between the two species. In the second part of this work, we studied the bacterial traits involved in this natural variability. In coevolution experiments, we followed temporal allele frequency variations over 300 bacterial generations under four sets of environmental conditions: with or without biotic factor and with or without spatial structure. The aim of theoretical model we developed was to address the demographic stochasticity effects on neutral allele fixation probability and time to fixation. This book should be useful to professionals in experimentation or theoretical models or anyone else who may be concerning about evolution and population genetics. ····· 1036199043
····· lezzter Preis 44.10€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The purpose of this study is to analyze the conflict between ethnic Oromo in Haro Limu Woreda of East Wollega Zone of Oromia and Yaso Woreda of Benishangul-Gumuz Regional State. To this end, qualitative research technique was employed. A total of sixty people were used as primary sources and relevant documents, reports and literature were used as secondary sources. Primary data collection tools included interview, focus group discussion and observation checklist. The collected data were qualitatively analyzed and interpreted. The findings indicated that the major causes of the conflict between the two Woredas were competition over farmland and grazing land, border disputes and lack of good governance. Furthermore, the conflict was exacerbated by proliferation of small arms and light weapons, corruption and crimes like animal looting as well as due to the historical enmity which took place during the slave trade. Finally, conclusions were drawn and pertinent suggestions were made based on the major finding of the study. ····· 1036199038
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This book is the result of a field research carried out by the author at the Banyang-Mbo Wildlife Sanctuary in southwest Cameroon. The main objective was to develop a better understanding of factors and issues involved in wildlife-human conflict in the area with a view to identifying and recommending appropriate strategies to address the situation. Two surveys and one case study were carried out to get the views of village communities and Banyang-Mbo Wildlife Sanctuary Project, respectively, as the main stakeholders in the conflict. The research found that elephants, cane rats and bush pigs are the major crop-raiders at Banyang-Mbo. Village communities consider crop-raiding levels to be determined by the presence or absence of elephants, whereas the project regards cane rats to be the determining species. It is concluded that the wildlife-human conflict at the area is complicated by a combination of real and perceived causes, largely coloured by a few but important differences in beliefs, values and preferences between the project and the local communities. ····· 1036199008
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The Punjab has diverse vegetation types occurring in isolated patches like graveyards, forest plantation and prohibited areas under armed forces and salinity/ sodicity affected soils. Desert and semi-desert vegetations occur in Cholistan and Thar areas, the mountain regions of Punjab and edges of Suleman Range near Rajan Pur have hot mountainous type vegetation. The southern edge of the Potohar Plateau is demarcated by famous salt range of Pakistan. Findings exhibited that how water table, drought, aridity, manmade deforestation, over/ uncontrolled grazing and browsing wiped out the precious plant and algal diversity. This valley needs conservation by adopting different measures and joint efforts of local people, the Government and NGOs. Furthermore, in this study the threatening categories of plant species are identified and also grouped into different biological classes. The species, which are important for ecosystems like endemic and keystone, are given priority for said conservation campaign. This study would lay a foundation for conservation of natural habitat of non-conventional leguminous forage and fodder treasures that is under alarming threats. ····· 1036198981
für 61.20€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Chemical pollution has become an environmental and human health concern. Small and medium-sized enterprises are becoming the focus of environmental researchers, as they have been found to collectively contribute a significant amount of pollution as a result of improperly managed chemicals. This case study of Nova Scotia SMEs aimed to collect baseline information regarding environmental and chemical management practices including the positive practices in place, areas requiring more assistance, information being requested by owner/managers and to determine who should be the focus of information dissemination programs. Results indicated that there is significant room for improvement in both the environmental and chemical management practices of SMEs, even though participants indicated they were employing responsible practices in some areas. Participants were also able to provide multiple suggestions regarding information they require in order to improve their business operations and environmental performance, thereby indicating they are aware improvements are needed and are willing to make the necessary changes. ····· 1036198896
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This study attempts for the first time the use of multi-proxy records from the Eastern Arc Mountain sites to contribute an understanding of past and present environments at regional and local climate, and environmental change spanning the last 50.0 kyr BP. One hypothesis based on inference records indicates that the Eastern Arc forests have been subject to an exceptionally long period of climatic stability an ecological Eden whose biota has survived the tectonic events of the Miocene and Pliocene, and later Pleistocene climatic vicissitudes. The work emphasises the period during the last 20,000 years (Last Glacial Maximum (LGM) to Present. During the LGM, the Eastern Arc Mountain ranges showed benign ecological stability suggesting that they were important refuge blocs and this has driven present floristic composition and distribution. Results from this study have implications for present-day land management and enable policies to be developed that incorporate the long-term perspective on the ecological form and functioning of vegetation and environment. This work concludes with recommendations how palaeoecology is an invaluable tool in understanding vegetation and climate. ····· 1036198744
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Ethiopia has diverse wildlife populations which are comparable, species wise to that of other countries of east Africa. Inventory of the wildlife potential of the country indicates that there are 260 species and sub-species of mammals, 845 species of birds, 78 species of snakes, 54 species of amphibians and 101 species of fish. Among these 28 species of mammals, 28 species of birds, 3 species of snakes, 30 species of amphibian and 4 species of fish are endemic to the country. There are many problems associated with the conservation of the park, due to the current extensive wildlife management system in almost all the national parks. ····· 1036198673
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The atmospheric N-depositions cause acidification and eutrophication in the ecosystems resulting into reduction in soil fertility, alteration in community composition and loss in biodiversity, because each ecosystem has a limit to the amount of N that it can occupy beyond this threshold, the ecosystem may collapse. Information on the effects of N deposition on the soil and vegetation from the dry tropical environment of India are lacking In conclusion, the study indicates that N-treatment showed humped-back pattern for the N-mineralization and species diversity and thus alteration in community composition. Further, N-treatment also caused considerable variations in functional group diversity, seed size and leaf traits. The medium seed size category had maximum number of species and individuals and small seed size category had minimum species and individuals. The number of species within large seed size trait category decreased with increased dose of N. The moderate level of N had greater SLA and LNC, and comparatively less LDMC, suggesting greater resource availability at moderate level of N which supported maximum herbaceous diversity. Thus the study supported N-saturation model. ····· 1036198426
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Tropical Asian rivers are highly undertstudied ecological systems. One of the most important taxa for the stability of these ecosystems are freshwater fishes. This study was undertaken to bridge the existing information gap of the population status of riverine fishes in the Western Himalaya. The main objectives were i) to understand the current distribution of fishes ii) to document patterns of fish diversity, and iii) to assess the conservation status of these fishes in the three tributaries of river Ramganga. Results show that Ramganga tributaries have 43 species belonging to five orders and nine families. River Mandal was richest in fish diversity than Kolhu and Khoh respectively. Fifteen species were found to be common across the three tributaries and among them `Barilius barila`, `Garra gotyla` and endangered `Tor putitora` were dominant. Sixty three percent of the fishes were found to be threatened. The region was also found to face many anthropogenic threats such as illegal fishing, sand and boulder mining that can further endanger many riverine fish species. To halt these threats, public awareness and immediate conservation prioritization of these rivers is essential. ····· 1036198383
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This is a story of fish and fishing in Lake Victoria, one of Africa s Great lakes. In the early 1990s, Uganda started industrial fish processing in response to the lucrative markets overseas. This has led to a situation whereby larger-scale industrial fisheries have been systematically favored in the belief that the benefits derived from the newer fisheries would flow through the economy to the original participants. The customary system, rules and regulations are being replaced through the promotion of conventional science, foreign technology and centralization of power. The question of whether the economic importance of fisheries for local populations/households (that originally survived on the lake s resources) has been tackled is what the study follows. It will further focus on how local fishers employ LEK to sustain their meager economy amidst the interference of state agencies and external actors. It explores how local fishers are coping with the new natural resource management policies and whether Lake Victoria is heading for an environmental catastrophe. ····· 1036198362
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray There are very few reports on earthworm ecology in the Himalayas, lest the work that deals with earthworm population dynamics and nutrient cycling, across the altitudinal gradient, encompassing the agricultural zone at the base, and extending to forested zones, lying above. More so, a comparative study of the kind undertaken in the present study, wherein a relative study of two different sacred forests sites, differing in their magnitude of disturbance have never been attempted. In brief, the present text incorporates- (i) a brief introduction to the subject area of study, (ii) a detailed literature review, (iii) a brief account of the earthworm species encountered, (iv) spatial variation and the functional guild, (v) age structure and vertical distribution of the species encountered, and finally (vi) a detailed study of the life cycle of the most dominant species encountered- Eutyphoeus nainianus. The text ends with a note on potential use of the species for vermicomposting. The book would prove beneficial to postgraduate students and researchers, as well as to entrepreneur farmers, working in the field of soil biology and earthworms. ····· 1036198306
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This book showed that wild animals found in and around the Guassa community conservation area, central highland of Ethiopia, potentially cause economic loss due to livestock depredation and crop damage. The analysed data showed that 44.4% of the respondents faced both the problems of crop damage and livestock predation. The average annual crop loss due to gelada baboon per house hold was estimated to be 0.63 ± 0.05 quintal. Only 16.8% of the respondents reported the depredation of sheep by Ethiopian wolf. The gelada baboon, common jackal, leopard and spotted hyena in and around the Guassa area caused strong conflict with local communities, but a conflict between local people and Ethiopian wolf not as such a major problem. Duikers and klipspringers cause crop damage to lesser extent. Rodents, rock hyrax, rabbit and porcupines also cause crop damage in the study area. The attitude of local people towards wildlife conservation is influenced by the problems associated with it. ····· 1036198248
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The most vulnerable and affected group by the negative impacts of climate change are the least developed countries. This fact is contributed by lack of structural and financial resources to mitigate and adapt to the impacts of climate change. The United Nations Framework Convention on Climate Change (UNFCCC) developed a technology transfer framework to create a mechanism so that low carbon technologies (LCT`s) are transferred to the least developed country in an effective and sustainable manner in order to curb and reduce the amount of GHG emissions and mitigate the impacts of Climate Change. The book analyses the suitability of the framework in enabling transfer of technology by assessing the suitability of framework using Tanzania as a case study as well as identifying channels of diffusion of LCT`s. Among other things, the book identifies climate entrepreneurs as key players in diffusion and deployment of LCT`s and the significance of a bottom up approach in technology transfering process where local participation and involvement need to be enhanced and strengthened from the initial stages of the process. ····· 1036198245
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This research was carried out in the Bandevi buffer Zone Community Forest (BZCF) and Satkanya Community Forest (SCF) of Barandabhar corridor area in Chitwan district of Nepal to assess and compare the status of floristic diversity in buffer zone community forest and community forest in Barandabhar corridor in Chitwan district of Nepal, managed under different rules and regulations. Primary data were collected from reconnaissance survey, direct observation, forest inventory, interviews with forest user group members and key informant interview. Secondary data were collected from the forestry stakeholders working in community forestry and buffer zone sectors. The floral diversity was assessed by using Simpson s Diversity Index (SI), Shannon Weiner Diversity Index (WI) and Margalef Species Richness Index (MI). Information on management practices were assessed by field observation, key informant interview and review of operational plan of respective forests. Diversity index (SI=0.9367 and WI =3.3714) and species richness index of (MI=10) of BZCF were found higher than the diversity index (SI=0.8749 and WI =3.0099) and species richness index (MI=9.0491) of SCF. ····· 1036192654
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Fresh water resources alone cannot meet the growing water demand and therefore wastewater is a growth may lead to excessive exploitation of groundwater to meet the demand. Reuse of treated wastewater through groundwater recharge has emerged as an integral part of water and wastewater management in arid and semi-arid regions of the word. In most of the reuse systems in practice, infiltration is carried out by subjecting conventional secondary treatment effluent to tertiary filtration prior to soil aquifer treatment (SAT). ····· 1036192620· 1 · ::::: · 13 ·· 14 ·· 15 ·· 16 ·· 17 ·· 18 ·· 19 · ::::: · 30 ·
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