Nutrient Dynamics in a Created Desert Wetland PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Nutrient Dynamics in a Created Desert Wetland PDF full book. Access full book title Nutrient Dynamics in a Created Desert Wetland by Ruth Rodriguez. Download full books in PDF and EPUB format.
Author: Ruth Rodriguez
Publisher:
ISBN:
Category : Constructed wetlands
Languages : en
Pages :
Get Book Here
Book Description
Author: Ruth Rodriguez
Publisher:
ISBN:
Category : Constructed wetlands
Languages : en
Pages :
Get Book Here
Book Description
Author: Karen Schneller-McDonald
Publisher:
ISBN:
Category : Wetland restoration
Languages : en
Pages : 210
Get Book Here
Book Description
"This report provides a hard copy of the bibliographic information contained in the digital Wetland Creation/Restoration Data Base. One thousand one hundred data base records are included; each of these represents one article, report, or other publication dealing with the creation or restoration of wetlands. Information in the records is ... accessible via a cross-referenced index divided into four sections (Location Index, Plant Genus Index, Wetland Type Index, and Subject Index."--Page 1 Abstract.
Author: Tjut Sugandawaty Djohan
Publisher:
ISBN:
Category :
Languages : en
Pages : 450
Get Book Here
Book Description
Author: Robert Max Holmes
Publisher:
ISBN:
Category : River sediments
Languages : en
Pages : 540
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 768
Get Book Here
Book Description
Author: Jefferson Thad Scott
Publisher:
ISBN:
Category : Constructed wetlands
Languages : en
Pages : 114
Get Book Here
Book Description
In this study, the factors influencing the development of a nutrient availability gradient in a wetland ecosystem and the subsequent controls to, and feedbacks from, the structure and function of the periphyton community were investigated. Field surveys, field experiments, and a laboratory experiments were conducted over a three year period in the Lake Waco Wetlands, a created wetland system near Waco, Texas. Results of these studies indicated that nitrogen (N) retention/removal always exceeded phosphorus (P) retention/removal along the flow path of water. Over 90% of nitrate (NO3- ) entering the wetland was generally retained by the system and 50% of that retention was a result of influx into sediments. Intact sediment core experiments revealed that virtually all available NO3- in the sediments was denitrified. Inorganic P entering the wetland was less well retained (up to 50%), but the wetland was sometimes a source of P as well. The disproportionate loss of inorganic N resulted in a distinct gradient of nutrient availability where N was relatively more abundant near the inflow, but became decreasingly less abundant than P as distance from the inflow increased. Experimental N and P enrichments at the inflow often resulted in an increase in periphyton biomass accumulation. However, only N alone stimulated biomass accumulation in downstream areas. Floating periphyton mats, or "metaphyton", appeared to overcome N deficiency on a seasonal basis by fixing, and efficiently retaining, large quantities of atmospheric N2. In fact, average N-specific metaphyton production throughout the entire wetland was inversely correlated with average metaphyton phosphatase activity (r2 = 0.78; p = 0.0015). These results suggest that fixed N2 may supply a sufficient quantity of N to offset periphyton N limitation and initiate P limitation. The response to inorganic N additions is maintained because use of NO3--N is less energetically expensive to utilize than N2. Furthermore, results of laboratory experiments suggest that some mechanisms may exist by which bacteria and photoautotrophs compensate the supply of P and fixed N2, respectively, to one another within the community.
Author: C. Lisa Dent
Publisher:
ISBN:
Category : Freshwater microbiology
Languages : en
Pages : 534
Get Book Here
Book Description
Author: Tadeo Giacomo Vitko
Publisher:
ISBN:
Category :
Languages : en
Pages : 264
Get Book Here
Book Description
Author: J. Henry Sather
Publisher:
ISBN:
Category : Water quality
Languages : en
Pages : 162
Get Book Here
Book Description
Author: Jon A. Kusler
Publisher:
ISBN:
Category : Restoration ecology
Languages : en
Pages : 690
Get Book Here
Book Description
