HERBICIDE TRANSPORT IN A RESTORED RIPARIAN FOREST BUFFER SYSTEM

2002 ◽  
Vol 45 (1) ◽  
Author(s):  
G. Vellidis ◽  
R. Lowrance ◽  
P. Gay ◽  
R. D. Wauchope

1997 ◽  
Vol 40 (4) ◽  
pp. 1047-1057 ◽  
Author(s):  
R. Lowrance ◽  
G. Vellidis ◽  
R. D. Wauchope ◽  
P. Gay ◽  
D. D. Bosch




2018 ◽  
Vol 10 (4) ◽  
pp. 614 ◽  
Author(s):  
Carlington Wallace ◽  
Gregory McCarty ◽  
Sangchul Lee ◽  
Robert Brooks ◽  
Tamie Veith ◽  
...  


Author(s):  
J. Denis Newbold ◽  
Susan Herbert ◽  
Bernard W. Sweeney ◽  
Paul Kiry ◽  
Stephen J. Alberts


Author(s):  
Johan Sonesson ◽  
Eva Ring ◽  
Lars Högbom ◽  
Tomas Lämås ◽  
Olof Widenfalk ◽  
...  


2005 ◽  
Vol 62 (1) ◽  
pp. 1-6 ◽  
Author(s):  
Emmanuel A Frimpong ◽  
Trent M Sutton ◽  
Kyoung J Lim ◽  
Peter J Hrodey ◽  
Bernard A Engel ◽  
...  

The dimensions of riparian buffers selected for stream biota–landscape association models determine correlation strength and subsequent model interpretation. Efforts have been made to optimize buffer dimensions incorporated into models, but none has explicitly determined a single optimum based on both longitudinal and lateral buffer dimensions. We applied partial correlation and multivariate linear regression on functional fish community response attributes and the index of biotic integrity using stream samples (N = 107) from the Eastern Corn Belt Plain Ecoregion of Indiana, USA. Land-cover data in digital format were processed in geographic information systems for an area covering 300 m on either side of selected streams and within 2000 m longitudinally. The optimal buffer dimension for the study area was 30 m laterally and 600 m longitudinally, with a partial correlation of 0.29 (P = 0.002), and there was agreement in the partial correlation and multiple regression models. The longitudinal dimension was more conclusively determined, but the lateral dimension was optimum only with respect to the resolution of the land-use data used. Based on these results, we propose the use of this approach to optimize the riparian buffer parameter in landscape models.







1976 ◽  
Vol 36 (01) ◽  
pp. 037-048 ◽  
Author(s):  
Eric P. Brass ◽  
Walter B. Forman ◽  
Robert V. Edwards ◽  
Olgierd Lindan

SummaryThe process of fibrin formation using highly purified fibrinogen and thrombin was studied using laser fluctuation spectroscopy, a method that rapidly determines particle size in a solution. Two periods in fibrin clot formation were noted: an induction period during which no fibrin polymerization occurred and a period of rapid increase in particle size. Direct measurement of fibrin monomer polymerization and fibrinopeptide release showed no evidence of an induction period. These observations were best explained by a kinetic model for fibrin clot formation incorporating a reversible fibrinogen-fibrin monomer complex. In this model, the complex serves as a buffer system during the earliest phase of fibrin formation. This prevents the accumulation of free polymerizable fibrin monomer until an appreciable amount of fibrinogen has reacted with thrombin, at which point the fibrin monomer level rises rapidly and polymerization proceeds. Clinically, the complex may be a homeostatic mechanism preventing pathological clotting during periods of elevated fibrinogen.



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