Effects of Land Use Change on Phosphorus Transport in an Urbanizing Watershed
Author: Camelia E. Rusmir
Publisher:
Published: 2001
Total Pages: 306
ISBN-13:
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Author: Camelia E. Rusmir
Publisher:
Published: 2001
Total Pages: 306
ISBN-13:
DOWNLOAD EBOOKAuthor: Vijay P. Singh
Publisher: Allied Publishers
Published: 2003
Total Pages: 588
ISBN-13: 9788177645477
DOWNLOAD EBOOKAuthor: Earl Shaver
Publisher:
Published: 2007
Total Pages: 327
ISBN-13:
DOWNLOAD EBOOKAuthor: Christopher Anand Scott
Publisher:
Published: 1998
Total Pages: 296
ISBN-13:
DOWNLOAD EBOOKAuthor: Stefan Schmutz
Publisher: Springer
Published: 2018-05-08
Total Pages: 562
ISBN-13: 3319732501
DOWNLOAD EBOOKThis open access book surveys the frontier of scientific river research and provides examples to guide management towards a sustainable future of riverine ecosystems. Principal structures and functions of the biogeosphere of rivers are explained; key threats are identified, and effective solutions for restoration and mitigation are provided. Rivers are among the most threatened ecosystems of the world. They increasingly suffer from pollution, water abstraction, river channelisation and damming. Fundamental knowledge of ecosystem structure and function is necessary to understand how human acitivities interfere with natural processes and which interventions are feasible to rectify this. Modern water legislation strives for sustainable water resource management and protection of important habitats and species. However, decision makers would benefit from more profound understanding of ecosystem degradation processes and of innovative methodologies and tools for efficient mitigation and restoration. The book provides best-practice examples of sustainable river management from on-site studies, European-wide analyses and case studies from other parts of the world. This book will be of interest to researchers in the field of aquatic ecology, river system functioning, conservation and restoration, to postgraduate students, to institutions involved in water management, and to water related industries.
Author:
Publisher:
Published: 2004
Total Pages: 206
ISBN-13:
DOWNLOAD EBOOKAuthor: National Research Council
Publisher: National Academies Press
Published: 2009-03-17
Total Pages: 611
ISBN-13: 0309125391
DOWNLOAD EBOOKThe rapid conversion of land to urban and suburban areas has profoundly altered how water flows during and following storm events, putting higher volumes of water and more pollutants into the nation's rivers, lakes, and estuaries. These changes have degraded water quality and habitat in virtually every urban stream system. The Clean Water Act regulatory framework for addressing sewage and industrial wastes is not well suited to the more difficult problem of stormwater discharges. This book calls for an entirely new permitting structure that would put authority and accountability for stormwater discharges at the municipal level. A number of additional actions, such as conserving natural areas, reducing hard surface cover (e.g., roads and parking lots), and retrofitting urban areas with features that hold and treat stormwater, are recommended.
Author: Scott W. Ator
Publisher: Geological Survey (USGS)
Published: 2011
Total Pages: 27
ISBN-13: 9781411332621
DOWNLOAD EBOOKSpatially Referenced Regression on Watershed Attributes (SPARROW) was used to provide empirical estimates of the sources, fate, and transport of total nitrogen (TN) and total phosphorus (TP) in the Chesapeake Bay watershed, and the mean annual TN and TP flux to the bay and in each of 80,579 nontidal tributary stream reaches. Restoration efforts in recent decades have been insufficient to meet established standards for water quality and ecological conditions in Chesapeake Bay. The bay watershed includes 166,000 square kilometers of mixed land uses, multiple nutrient sources, and variable hydrogeologic, soil, and weather conditions, and bay restoration is complicated by the multitude of nutrient sources and complex interacting factors affecting the occurrence, fate, and transport of nitrogen and phosphorus from source areas to streams and the estuary. Effective and efficient nutrient management at the regional scale in support of Chesapeake Bay restoration requires a comprehensive understanding of the sources, fate, and transport of nitrogen and phosphorus in the watershed, which is only available through regional models. The current models, Chesapeake Bay nutrient SPARROW models, version 4 (CBTN_v4 and CBTP_v4), were constructed at a finer spatial resolution than previous SPARROW models for the Chesapeake Bay watershed (versions 1, 2, and 3), and include an updated timeframe and modified sources and other explantory terms.
Author: Kamaljit Kamaljit
Publisher:
Published: 2010
Total Pages:
ISBN-13:
DOWNLOAD EBOOKWe suggest that the BMP's to reduce N loss from urban land uses in three developed sub-basins (with total N of 1.7-2.4 mg L-1) may yield greater reductions in N concentrations at watershed outlet (i.e. mainstem) to achieve EPA proposed numeric criteria of total N concentration of 1.798 mg L-1. On the other hand, due to P rich geology and discharge from the wastewaters, most developed and undeveloped sub-basins had greater total P concentrations (0.8-3.9 mg P L-1) than EPA proposed numeric total P value of 0.739 mg L-1 indicating that BMP's should focus on reducing P loss from phosphate rock mined sub-basins and reduce P inputs from wastewater.
Author:
Publisher:
Published: 2004
Total Pages: 196
ISBN-13:
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