Download or read book Quantitative Assessment of Groundwater and Surface Water Interactions in the Hailiutu River Basin Erdos Plateau China written by Zhi Yang and published by CRC Press. This book was released on 2018-04-17 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study presents a multi-disciplinary approach for investigating the interactions between groundwater and surface water in the semi-arid Hailiutu catchment in the Erdos Plateau, Northwest China. The study consists of statistical detection of river flow regime shifts at the basin level; multiple in-situ measurements for quantifying groundwater discharges using hydraulic, hydrochemical and temperature methods at a local scale; analysis and simulation of impacts of different land use scenarios on groundwater and surface water interactions at the sub-catchment scale; and the quantification of temporal and spatial groundwater and surface water interactions with hydrochemical tracers and modelling methods at the basin scale. The study found that the river flow consists of mainly groundwater discharges at all scales. The river flow regime has been intensively altered by human activities, such as the construction of reservoirs, water diversion, groundwater exploitation, and reforestation. Water use by plants and crops consumes majority of the precipitation. Groundwater sustains vegetation growth and feeds river discharges. The water resources and ecosystem management priority should reduce evaporative water uses by promoting dry resistant plant species for vegetating sand dunes and lower irrigation demand crops for socio-economic development. Furthermore, the Hailiutu River catchment must manage the groundwater recharge for water resource conservation and the maintenance of healthy ecosystems.
Download or read book Application of the China Meteorological Assimilation Driving Datasets for the SWAT Model CMADS in East Asia written by Hao Wang and published by MDPI. This book was released on 2019-07-23 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: To promote scientific understanding of surface processes in East Asia, we have published details of the CMADS dataset in the journal, Water, and expect that users around the world will learn about CMADS datasets while promoting the development of hydrometeorological disciplines in East Asia. We hope and firmly believe that scientific development in East Asia and our understanding of this typical region will be further advanced.
Download or read book Research and Information Needs Assessment to Support Sustainable Watershed Management in Northeast British Columbia written by Suzan Lapp and published by . This book was released on 2015 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: Watershed management issues are among the many challenges facing natural resource managers in British Columbia. This assessment, combined with a compilation of relevant research and data/information sources for northeast British Columbia, forms the basis for developing an applied research strategy to support sustainable water resource management in this region. This report presents the data collection methods used in the survey, a profile of the respondents, the ranking (High, Moderate, Low) of key research needs by topic area within each theme, and a summary of the written comments for each of the five main topical themes.--Includes text from document.
Download or read book Water resources Investigations Report written by and published by . This book was released on 1997 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Surface Water Assessment of the Upper Finniss Catchment written by Kumar Savadamuthu and published by . This book was released on 2003 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Microbial Synthesis of Chalcogenide Nanoparticles written by Joyabrata Mal and published by . This book was released on 2018-05-15 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent years have seen a growing interest in the application of chalcogenide nanoparticles (NPs) in various industrial sectors including energy, petroleum refining and also in the field of biology and medicine. Due to the high toxicity of chalcogen oxyanions, their release in the environment is of great concern. This book focuses on the development of a novel microbial synthesis process of chalcogenide NPs by combining biological treatment of Se/Te-containing wastewaters with biorecovery in the form of Se/Te chalcogenides NPs, and describes the enrichment of selenium oxyanion-reducing microorganisms to simultaneously remove selenite and cadmium from wastewaters.
Download or read book Flood Inundation Modeling and Hazard Mapping Under Uncertainty in the Sungai Johor Basin Malaysia written by Anuar Bin Md Ali and published by . This book was released on 2018 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Flooding can have devastating impacts on peoples livelihood, economy and the environment. One way to minimize flood losses is using floodplain maps, which assist land planners and local authorities in identifying flood-prone areas, and provide useful information for rescue and relief agencies for their operations. Developing floodplain maps often involves flood inundation modeling. This typically requires precipitation and stream flow data, topographic information, the selection of a hydraulic model and the calibration of its parameters. A common representation of floodplain map is based on a single outcome without an explicit consideration of all the sources of uncertainty in the modeling process. The research presented in this thesis addresses the uncertainty in the flood inundation modeling, which may arise from input data and hydraulic modeling approach. The study area is the Sungai Johor basin in Johor, Malaysia, which is an agricultural dominated area.By using a set of sample data for Sungai Johor Basin, the case study show the uncertainties arising from an estimation of design flow, terrain data sets, geometric description in hydraulic models and different modeling approaches.The intent of the research in flood inundation maps is to emphasize the impact of uncertainties in flood inundation maps that not only provide useful results but also suggested further research and improvement of flood inundation mapping practices."--Provided by publisher.
Download or read book Computer Programs for Describing the Recession of Ground water Discharge and for Estimating Mean Ground water Recharge and Discharge from Streamflow Records written by A. T. Rutledge and published by . This book was released on 1993 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Tracers written by Trevor Elliot and published by MDPI. This book was released on 2018-10-08 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a printed edition of the Special Issue "Environmental Tracers" that was published in Water
Download or read book Hypoxia in the Northern Gulf of Mexico written by Virginia H. Dale and published by Springer Science & Business Media. This book was released on 2010-04-12 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since 1985, scientists have been documenting a hypoxic zone in the Gulf of Mexico each year. The hypoxic zone, an area of low dissolved oxygen that cannot s- port marine life, generally manifests itself in the spring. Since marine species either die or ee the hypoxic zone, the spread of hypoxia reduces the available habitat for marine species, which are important for the ecosystem as well as commercial and recreational shing in the Gulf. Since 2001, the hypoxic zone has averaged 2 1 16,500 km during its peak summer months , an area slightly larger than the state 2 2 of Connecticut, and ranged from a low of 8,500 km to a high of 22,000 km . To address the hypoxia problem, the Mississippi River/Gulf of Mexico Watershed Nutrient Task Force (or Task Force) was formed to bring together represen- tives from federal agencies, states, and tribes to consider options for responding to hypoxia. The Task Force asked the White House Of ce of Science and Technology Policy to conduct a scienti c assessment of the causes and consequences of Gulf hypoxia through its Committee on Environment and Natural Resources (CENR).
Download or read book Action Plan for Reducing Mitigating and Controlling Hypoxia in the Northern Gulf of Mexico written by and published by . This book was released on 2001 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geomorphology of Desert Environments written by A. D. Abrahams and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 1021 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the last twenty years there has been a major expansion of knowledge in the field of landforms and landforming processes of deserts. This advanced-level book provides a benchmark for the current state of science, and is written by an international team of authors who are acknowledged experts in their fields.
Download or read book Exploitation of Environmental Heterogeneity by Plants written by and published by Academic Press. This book was released on 2012-12-02 with total page 449 pages. Available in PDF, EPUB and Kindle. Book excerpt: There is a new emerging interest in the effects of gaps and patches on succession and biodiversity. This innovative volume is a synthesis of studies of plant responses to temporal and spatial heterogeneity, the exploitation of resources from pulses and patches by plants, and their competition with neighbors in the face of this variability.Aboveground, the book focuses upon the nature of canopy patchiness, consequences of this heterogeneity for the light environment, and the mechanisms by which plants respond to and exploit this patchiness. Belowground, the text explores the heterogeneity of soil environments and how root systems obtain nutrients and water in the context of this temporal and spatial variability. As a new reference in an evolving and growing field, this text is sure to be a valuable tool for researchers and advanced students in plant physiology, ecology, agronomy, and forestry alike.
Download or read book Spatial Data Analysis in the Social and Environmental Sciences written by Robert P. Haining and published by Cambridge University Press. This book was released on 1993-08-26 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt: Within both the social and environmental sciences, much of the data collected is within a spatial context and requires statistical analysis for interpretation. The purpose of this book is to describe current methods for the analysis of spatial data. Methods described include data description, map interpolation, and exploratory and explanatory analyses. The book also examines spatial referencing, and methods for detecting problems, assessing their seriousness and taking appropriate action are discussed. This is an important text for any discipline requiring a broad overview of current theoretical and applied work for the analysis of spatial data sets. It will be of particular use to research workers and final year undergraduates in the fields of geography, environmental sciences and social sciences.
Download or read book Irrigation and Drainage Engineering written by Peter Waller and published by Springer. This book was released on 2015-11-18 with total page 742 pages. Available in PDF, EPUB and Kindle. Book excerpt: This textbook focuses specifically on the combined topics of irrigation and drainage engineering. It emphasizes both basic concepts and practical applications of the latest technologies available. The design of irrigation, pumping, and drainage systems using Excel and Visual Basic for Applications programs are explained for both graduate and undergraduate students and practicing engineers. The book emphasizes environmental protection, economics, and engineering design processes. It includes detailed chapters on irrigation economics, soils, reference evapotranspiration, crop evapotranspiration, pipe flow, pumps, open-channel flow, groundwater, center pivots, turf and landscape, drip, orchards, wheel lines, hand lines, surfaces, greenhouse hydroponics, soil water movement, drainage systems design, drainage and wetlands contaminant fate and transport. It contains summaries, homework problems, and color photos. The book draws from the fields of fluid mechanics, soil physics, hydrology, soil chemistry, economics, and plant sciences to present a broad interdisciplinary view of the fundamental concepts in irrigation and drainage systems design.
Download or read book Transformations of Nutrients in Natural and Constructed Wetlands written by Jan Vymazal and published by . This book was released on 2001 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt: The two papers by Dusek et al.
Download or read book Terrestrial Global Productivity written by Jacques Roy and published by Academic Press. This book was released on 2001 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt: Trophic levels.
