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Scientific Investigations Report 2004-5216 |
By: David C. Heimann, U.S. Geological Survey, and Paige A. Mettler-Cherry, Lindenwood University, Department of Biological Sciences, St. Charles, Missouri, in cooperation with the Missouri Department of Conservation
A study was conducted by the U.S. Geological Survey in cooperation with the Missouri Department of Conservation at the Four Rivers Conservation Area (west-central Missouri), between January 2001 and March 2004, to examine the relations between environmental factors (hydrology, soils, elevation, and landform type) and the spatial distribution of vegetation in remnant and constructed riparian wetlands. Vegetation characterization included species composition of ground, understory, and overstory layers in selected landforms of a remnant bottomland hardwood ecosystem, monitoring survival and growth of reforestation plots in leveed and partially leveed constructed wetlands, and determining gradients in colonization of herbaceous vegetation in a constructed wetland.
Similar environmental factors accounted for variation in the distribution of ground, understory, and overstory vegetation in the remnant bottomland forest plots. The primary measured determining factors in the distribution of vegetation in the ground layer were elevation, soil texture (clay and silt content), flooding inundation duration, and ponding duration, while the distribution of vegetation in the understory layer was described by elevation, soil texture (clay, silt, and sand content), total flooding and ponding inundation duration, and distance from the Marmaton or Little Osage River. The primary measured determining factors in the distribution of overstory vegetation in Unit 1 were elevation, soil texture (clay, silt, and sand content), total flooding and ponding inundation duration, ponding duration, and to some extent, flooding inundation duration.
Overall, the composition and structure of the remnant bottomland forest is indicative of a healthy, relatively undisturbed flood plain forest. Dominant species have a distribution of individuals that shows regeneration of these species with significant recruitment in the smaller size classes. The bottomland forest is an area whose overall hydrology has not been significantly altered; however, portions of the area have suffered from hydrologic alteration by a drainage ditch that is resulting in the displacement of swamp and marsh species by colonizing shrub and tree species. This area likely will continue to develop into an immature flood plain forest under the current (2004) hydrologic regime.
Reforestation plots in constructed wetlands consisted of sampling survival and growth of multiple tree species (Quercus palustris, pin oak; Carya illinoiensis, pecan) established under several production methods and planted at multiple elevations. Comparison of survival between tree species and production types showed no significant differences for all comparisons. Survival was high for both species and all production types, with the highest mortality seen in the mounded root production method (RPM®) Quercus palustris (pin oak, 6.9 percent), while direct seeded Quercus palustris at middle elevation and bare root Quercus palustris seedlings at the low elevation plots had 100 percent survival. Measures of growth (diameter and height) were assessed among species, production types, and elevation by analyzing relative growth. The greatest rate of tree diameter (72.3 percent) and height (65.3 percent) growth was observed for direct seeded Quercus palustris trees planted at a middle elevation site.
Natural colonized vegetation data were collected at multiple elevations within an abandoned cropland area of a constructed wetland. The primary measured determining factors in the distribution of herbaceous vegetation in this area were elevation, ponding duration, and soil texture. Richness, evenness, and diversity were all significantly greater in the highest elevation plots as a result of more recent disturbance in this area.
While flood frequency and duration define the delivery mechanism for inundation on the flood plain, it is the duration of ponding and amount of “topographic capture” of these floodwaters in fluvial landforms that largely determines the survivability and distribution of tree species in both remnant and constructed wetlands. Ponding, flooding, ground-water levels, and precipitation all accounted for saturated conditions in the upper soil profiles in the Four Rivers Conservation Area monitoring sites. Of these processes, ponding and flooding were the primary factors accounting for soil saturation conditions. The identification of landform features in undisturbed settings, therefore, can be an important aide in predicting the sustainable spatial distribution of various plant species in riparian revegetation projects.
Abstract
Introduction
Purpose and Scope
Description of Study Area
Land-Use History of Four Rivers Conservation Area
Acknowledgements
Methods
Hydrology
Surface-Water Monitoring
Ground-Water Monitoring
Soil Moisture, Texture, and Organic Matter
Vegetation
Bottomland Forest in Remnant Wetland
Reforestation and Colonization in Constructed Wetlands
Data Analyses
Hydrologic and Soils Data
Vegetation
Remnant Bottomland Forest
Reforestation Plots
Natural Colonization
Hydrologic Gradients
Surface Water
Ground Water
Soil Gradients
Soil Moisture
Spatial Variability
Temporal Variability
Comparison of Mounded and Non-Mounded Locations
Physical Properties
Vegetation Gradients
Bottomland Forest in a Remnant Wetland
Ground-Layer Flora
Understory Flora
Overstory Flora
Reforestation Plots in Constructed Wetlands
Unit 3 Reforestation Plots
Unit 4 Reforestation Plots
Natural Colonization in Constructed Wetland
Relations Between Hydrology, Soils, and Vegetation Gradients in Four Rivers Conservation Area Wetlands
Primary Factors Affecting Vegetation Distribution in Four Rivers Conservation Area
Using and Acquiring Hydrologic and Soils Data For Developing Revegetation Plans
Summary
References Cited
Glossary
1. Map showing Four Rivers Conservation Area and vicinity
2. Photographs showing historic (1939–1997) change in vegetation in the Horton Bottoms Natural Area in Units 1 and 3 at the Four Rivers Conservation Area
3–5. Maps showing:
3. Unit 1 of the Four Rivers Conservation Area and monitoring locations
4. Unit 3 of the Four Rivers Conservation Area and monitoring locations
5. Unit 4 of the Four Rivers Conservation Area and monitoring locations
6–12. Graphs showing:
6. Relation between selected concurrent annual peak stages and differentials between peak stages for the Marmaton River and the Little Osage River gaging stations
7. Relation between estimated and observed Marmaton River at Horton Bottoms annual peak stages (1949–2003) and elevations of selected estimated instantaneous peak recurrence interval stages
8. Ground-water level below ground surface and ground-water elevation data for Unit 1 monitoring wells at the Four Rivers Conservation Area, 2001–03
9. Ground surface and selected ground-water elevation transects across Unit 1 (Horton Bottoms) at the Four Rivers Conservation Area
10. Ground-water level below ground surface and ground-water elevation data for Unit 3 monitoring wells at the Four Rivers Conservation Area, 2001–03
11. Ground surface and selected ground-water elevation transects across Unit 3 from U3W1 to U3W2 and U3W3 to U3W2 at the Four Rivers Conservation Area
12. Ground-water level below ground surface and ground-water elevation data for Unit 4 monitoring wells at the Four Rivers Conservation Area, 2001–03
13. Boxplots showing soil moisture summary statistics by depth for monitoring sites in Units 1, 3, and 4 at the Four Rivers Conservation Area, 2001–03
14–20. Graphs showing:
14. Temporal variability in soil-moisture profiles in Unit 1 (Horton Bottoms) at the Four Rivers Conservation Area during the 2001–03 growing seasons
15. Temporal variability in soil-moisture profiles in Unit 3 at the Four Rivers Conservation Area during the 2001–03 growing seasons
16. Temporal variability in soil-moisture profiles in Unit 4 at the Four Rivers Conservation Area during the 2001–03 growing seasons
17. Temporal variability in mean pan evaporation data from twice-monthly observations in Unit 1 (forested) and Unit 4 (open) at the Four Rivers Conservation Area during the 2001–03 growing seasons
18. Comparisons of soil moisture values at mounded and adjacent non-mounded tree locations in Unit 3 at the Four Rivers Conservation Area, 2001–03
19. Normalized site elevations and landform type against clay, sand, silt, and organic matter content in surface (0–0.30 meter) soil samples from Unit 1 (Horton Bottoms) at the Four Rivers Conservation Area
20. Normalized elevation and landform type against estimated wilting point, field capacity, available water, saturation, and saturation hydraulic conductivity values in surface 0–0.30 meter) soil samples from Unit 1 (Horton Bottoms) at the Four Rivers Conservation Area
21. Boxplots showing distributions of soil texture characteristics by landform in surface (0–0.30 meter) samples from Unit 1(Horton Bottoms) at the Four Rivers Conservation Area
22. Boxplots showing distributions of soil texture characteristics by depth at natural levee sites in Unit 1 (Horton Bottoms) at the Four Rivers Conservation Area
23–49. Graphs showing:
23. Growth form of ground layer species for each landform type sampled in Unit 1 (Horton Bottoms) at the Four Rivers Conservation Area
24. Native and introduced ground layer species for each landform type sampled in Unit 1 (Horton Bottoms) at the Four Rivers Conservation Area
25. Wetland indicator status of ground layer species for each landform type sampled in Unit 1 (Horton Bottoms) at the Four Rivers Conservation Area
26. Dominant families determined as percent of total ground layer species cover for each landform type sampled in Unit 1 (Horton Bottoms) at the Four Rivers Conservation Area
27. Mean richness and diversity of ground layer vegetation for each landform type sampled in Unit 1 (Horton Bottoms) at the Four Rivers Conservation Area
28. Detrended correspondence analysis of ground layer vegetation sampled in Unit 1 (Horton Bottoms) and ground layer vegetation separating landform type and year sampled in Unit 1 at the Four Rivers Conservation Area
29. Growth form of understory species for each landform type sampled in Unit 1 (Horton Bottoms) at the Four Rivers Conservation Area
30. Wetland indicator status of understory species in each landform type sampled in Unit 1 (Horton Bottoms) at the Four Rivers Conservation Area
31. Dominant understory families determined as percentage of total basal area for each landform type sampled in Unit 1 (Horton Bottoms) at the Four Rivers Conservation Area
32. Mean richness and species diversity of understory vegetation sampled in each landform type in Unit 1 (Horton Bottoms) at the Four Rivers Conservation Area
33. Detrended correspondence analysis of understory vegetation and understory species scores resulting from ordination of plots sampled in Unit 1 (Horton Bottoms) at the Four Rivers Conservation Area
34. Wetland indicator status of overstory species for each landform type sampled in Unit 1 (Horton Bottoms) at the Four Rivers Conservation Area
35. Dominant overstory families determined as percentage of total basal area for each landform type sampled in Unit 1 (Horton Bottoms) at the Four Rivers Conservation Area
36. Mean richness and species diversity of overstory vegetation sampled in each landform type in Unit 1 (Horton Bottoms) at the Four Rivers Conservation Area
37. Detrended correspondence analysis of overstory vegetation for each landform type and species scores of overstory vegetation resulting from ordination of plots sampled in Unit 1 (Horton Bottoms) at the Four Rivers Conservation Area
38. Mean canopy density for each landform type sampled in Unit 1 (Horton Bottoms) at the Four Rivers Conservation Area
39. Size class distribution of dominant tree species of the natural levee landform type in Unit 1 (Horton Bottoms) at the Four Rivers Conservation Area, as determined by importance value (IV)
40. Size class distribution of dominant tree species of the flood plain landform type in Unit 1 (Horton Bottoms) at the Four Rivers Conservation Area, as determined by importance value (IV)
41. Size class distribution of dominant tree species of the alluvial depression landform type in Unit 1 (Horton Bottoms) at the Four Rivers Conservation Area as determined by importance value (IV)
42. Size class distribution of dominant tree species of the backwater swamp landform type in Unit 1 (Horton Bottoms) at the Four Rivers Conservation Area, as determined by importance value (IV)
43. Mean percentage of change in diameter and height of bare root seedlings of Carya illinoiensis (pecan) and Quercus palustris (pin oak) at well 2 in Unit 3 at the Four Rivers Conservation Area
44. Percentage of change in diameter and height of direct seed seedlings associated with wells 1 and 3 in Unit 3 at the Four Rivers Conservation Area
45. Mean percentage of change in diameter and height of root production method trees in Unit 3 at the Four Rivers Conservation Area
46. Mean richness, diversity, and evenness by elevation class for colonized vegetation sampled in Unit 4 at the Four Rivers Conservation Area
47. Total species and cover for introduced and native species in each elevation class sampled in Unit 4 at the Four Rivers Conservation Area
48. Percentage of total cover for each wetland indicator species type for each elevation class sampled in Unit 4 at the Four Rivers Conservation Area
49. Detrended correspondence analysis ordination of all vegetation quadrats in Unit 4 at the Four Rivers Conservation Area
TABLES
Conversion Factors and Datum | ||
---|---|---|
Multiply | By | To obtain |
Length | ||
centimeter (cm) | 0.3937 | inch (in.) |
millimeter (mm) | 0.03937 | inch (in.) |
meter (m) | 3.281 | foot (ft) |
kilometer (km) | 0.6214 | mile (mi) |
Area | ||
square meter (m2) | 0.0002471 | acre |
hectare (ha) | 2.471 | acre |
square kilometer (km2) | 247.1 | acre |
square centimeter (cm2) | 0.001076 | square foot (ft2) |
square decimeter (dm2) | 0.1076 | square foot (ft2) |
square meter (m2) | 10.76 | square foot (ft2) |
square centimeter (cm2) | 0.1550 | square inch (in2) |
hectare (ha) | 0.003861 | square mile (mi2) |
square kilometer (km2) | 0.3861 | square mile (mi2) |
Volume | ||
cubic meter per second (m3/s) | 35.31 | cubic foot per second (ft3/s) |
Mass | ||
gram | 0.03527 | ounce, avoirdupois (oz) |
kilogram | 2.205 | pound avoirdupois (lb) |
Pressure | ||
Kilopascal (kPa) | 0.01 | bar |
Hydraulic Conductivity | ||
meter per day (m/d) | 3.281 | foot per day (ft/d) |
Temperature in degrees Celsius (°C) may be converted to degrees Fahrenheit
(°F) as follows:
°
F = (1.8 x °C) + 32
Vertical coordinate information is referenced to the “North American Vertical Datum of 1988 (NAVD 88).”
Horizontal coordinate information is referenced by the "North American Datum of 1983 (NAD 83)".
Evalation, as used in this report, refers to distance above the vertical datum.
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Figure 2 Photograph showing historic 1939-1997 change in vegetation in the Horton Bottoms Natural Area in Units 1 and 3 at the Four Rivers Conservation Area (PDF Format 524 KB)
Photograph showing historic 1939 vegetation. (PDF Format 178 KB)
Photograph showing historic 1974 vegetation. (PDF Format 137 KB)
Photograph showing historic 1997 vegetation. (PDF Format 128 KB)
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For more information about USGS activities in Missouri contact:
Director
U.S. Geological Survey
Missouri Water Science Center
1400 Independence Road
Rolla, Missouri 65401
Telephone: (573) 308-3667
Fax: (573) 308-3645
or access the USGS Missouri Water Science Center home page at: http://mo.water.usgs.gov/.
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