A Regional Guidebook for Assessing the Functions of Low Gradient, Riverine Wetlands in Western Kentucky

Front Cover
U.S. Army Engineer Waterways Experiment Station, 1999 - Wetland conservation - 236 pages
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Contents

Figure C7 Regional curve comparing average bankfull depth DBKF to drainage
4
3 Characterization of Low Gradient Riverine Wetlands in Western Kentucky
12
Basin Characteristics of Four Western Kentucky Watersheds
16
4 Wetland Functions and Assessment Models
21
Adjustment Values for Roughness Components Contributing to Mannings
29
Relationship between floodplain roughness and functional capacity
30
Movement of water down the hydraulic gradient from uplands through wetlands and into adjacent stream channels
31
Relationship between soil permeability and functional capacity
35
Relationship between tree basal area and functional capacity
73
Relationship between tree density and functional capacity
74
Dominant Species by Vegetation Strata in Reference Standard Sites
76
Relationship between percent concurrence of strata dominants and functional capacity
77
Relationship between depth to seasonal high water table and functional capacity
78
Relationship between soil integrity and functional capacity
79
Relationship between recurrence interval and functional capacity
87
Relationship between macrotopographic features and functional capacity
88

Change in water table slope after ditching or channel dredging
36
Relationship between water table slope and functional capacity
37
Relationship between effective soil porosity and functional capacity
39
Relationship between fluctuating water table and functional capacity
41
Relationship between tree basal area and functional capacity
44
Relationship between understory vegetation stem density and functional capacity
45
Relationship between ground vegetation cover and functional capacity
46
Relationship between O soil horizon and functional capacity
47
Relationship between A soil horizon and functional capacity
48
Relationship between woody debris and functional capacity
51
Relationship between recurrence interval and functional capacity
55
Relationship between depth to seasonal high water table and functional capacity
56
Relationship between the percent difference in soil clay in the wetland assessment area and functional capacity
58
Redoximorphic features and functional capacity
59
Relationship between O soil horizon and functional capacity
60
Relationship between A soil horizon and functional capacity
61
Relationship between recurrence interval and functional capacity
63
Relationship between the ratio of floodplain width to channel width and functional capacity
64
Relationship between floodplain slope and functional capacity
65
Relationship between floodplain roughness and functional capacity
66
Relationship between recurrence interval and functional capacity
68
Relationship between surface water connections and functional capacity
69
Relationship between O soil horizon and functional capacity
70
Relationship between woody debris and functional capacity
71
Relationship between percent concurrence of strata dominants and functional capacity
89
Relationship between tree density and functional capacity
90
Relationship between log volume and functional capacity
91
Relationship between snag density and functional capacity
92
Relationship between O soil horizon and functional capacity
93
Relationship of assessment area to the larger area of contiguous wetland of the same subclass for determining wetland tract
94
Interior core area and buffer zone
95
Interior core area and functional capacity
96
Perimeter tract connections and functional capacity
97
5 Assessment Protocol
99
Red Flag Features and Respective ProgramAgency Authority
101
A single WAA within a project area
102
Spatially separated WAAs from different regional wetland subclasses within a project area
103
Sample Field Data Sheet
104
Sample plot and subplot dimensions and layouts for field sampling
105
Sample Plot Worksheet
106
Example of an FCI calculation spreadsheet
109
References
121
Glossary
131
Summaries and Forms for Field Use
137
Supplementary Information on Model Variables CI
173
Parallel drain spacing
175
Reference Wetland Data Dl
211

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