Pedology distance ed field project
Download
1 / 27

Pedology Distance Ed. Field Project - PowerPoint PPT Presentation


  • 88 Views
  • Uploaded on

Pedology Distance Ed. Field Project. FLREC established in 1955 moved to it’s current location 1968. Only 5′ above sea-level Mean annual Precipitation: 60 – 68 inches, not uniform throughout the year. Udic soil moisture regime. Mean annual air temperature 72 – 79 o F.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about ' Pedology Distance Ed. Field Project' - henry-noel


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
Pedology distance ed field project
Pedology Distance Ed. Field Project

  • FLREC established in 1955 moved to it’s current location 1968.

  • Only 5′ above sea-level

  • Mean annual Precipitation: 60 – 68 inches, not uniform throughout the year. Udic soil moisture regime.

  • Mean annual air temperature 72 – 79oF.

  • Frost-free: 360 - 365 days.

University of Florida; Fort Lauderdale Research and Education Center


Previous land use
Previous Land Use

  • Originally part of the Everglades and vegetatively dominated with Sawgrass.

  • In 1904, the Flood Control District was formed and an extensive canal system was initiated. Intensive drainage continued until the 1950’s, permitting dairy farming that changed the flora to white clover and Natalgrass dominated pasture.

  • The University of Florida acquired the land in 1968 without significantly altering the land to this date.


Topography
Topography

Soil surface extremely flat, nearly level (0-2%).

Highly weathered soils, composed almost entirely of weathering resistant quartz; despite this these soils are classified as poorly drained, carrying a capability subclass of IVw (severe limitation of plant choice due to wetness)

Large scale drainage may nullify this wetness sub classification, permitting extensive urban development and flora species choice.


Vegetative cover
VegetativeCover

Undisturbed grassland area, receiving no additional fertility inputs

Combination of grassy and herbaceous plant species


Master Horizons

Ap 0 – 6"

E1 6 – 19"

E2 19 – 25"

Bh 25 – 28"

Bw 28 – 46"

IIR


Horizon ap
Horizon Ap

Ap-0 to 6 inches; very dark grey (N 3/1);

fine sand; granular, weak

structure; very friable; many

fine and medium roots;

clear smooth boundary.


Horizon e1
Horizon E1

E1- 6 to 19 inches, light brownish

grey (10YR 5/1); few streaks of

black (10YR 2/1) in root channels;

fine sand; structureless, single

grained, loose; few medium to

fine roots; gradually wavy

boundary. Redox depletions

(10YR 8/1) may be a relic of an

era of high water saturation prior

to drainage practices.


Horizon e2
HorizonE2

E2- 19 to 25 inches, light

yellowish grey (10YR 6/2); few

streaks of black (10YR 2/1)

in root channels; fine sand;

structureless, single

grained, loose; few

fine roots; gradually

smooth boundary; soft yellowish

brown (10YR 5/6) redox

concentrations .


Horizon bh
Horizon Bh

Bh-25 to 28 inches, very dark greyish brown

(10YR 3/2); very few black streaks (10YR 2/1)

in root channels; fine

sand; granular

structure; friable;

few medium roots;

clear broken

boundary.


Horizon bw
Horizon Bw

Bw-28 to 46 inches; greyish brown (10YR 4/3)

fine sand; few streaks of black

(10YR 2/1) in root channels;

structureless, massive, very

friable; few medium roots;

clear wavy boundary.


Horizon 2r
Horizon 2R

2R- below 46 inches; light grey

(10YR 7/1) hard fractured

limestone; brown (10YR 5/3) fine

sand bridging limestone fragments;

May be excavated with power

equipment.


Soil Profile Properties and Interpretations

Infiltration Rate: High

AWC: Very low (5.75 cm)

KSAT: High

Soil Wetness Class: 3 Wet between 50 and 100 cm

Soil Interpretations

Dwellings with Basement: Moderate (Redox features between 50 and 100cm)

Septic Tank Absorption Fields:Severe (Depth to water table & KSAT)

Local Roads and Streets: Slight

Site Characteristics

Position of Site: Broad marine terraces

Parent Material: Alluvium sandy marine sediment over limestone

Soil Slope: Nearly level - 0 to 2%

Surface Runoff: Very slow

Erosion potential: Very Low


Soil classification
Soil Classification

Epipedon: Ochric

Subsurface: Albic

Order: Entisols

Suborder: Aquents

Great group: Psammaquent

Subgroup: Spodic Psammaquent

Family: Siliceous, hyperthermic

Series: Basinger

Phase: Fine sand


Previous land use1
Previous Land Use

  • A US Naval Air Station previously occupied this site from 1941 to 1947.

  • The airfield remained undisturbed until the early 1960’s when urban development ensued.

  • In 1968, the University of Florida was allocated a section of the original airfield as part of the agricultural research station.


Topography1
Topography

A gradual drop of 0.9m from the surrounding land has resulted in a nearly level (0-2%) area of approximately 200m2 that is significant wetter than the adjacent terrain.


Vegetative cover1
Vegetative Cover

  • Wetland plant species dominate the vegetative cover.

  • Increased biodiversity was observed compared to site 1.


Master horizons
Master Horizons

A 0 – 4"

C 4 – 8"

2Ab 8 – 10"

2AC 10 – 12"

2C

12 - 20"

2R below 16"


A horizon
A Horizon

A – 0 to 4 inches; very dark brown (10YR 2/1); fine sand; granular, weak structure, friable; many fine and medium roots; clear wavy boundary.


C horizon
C Horizon

C- 4 to 8 inches; light grey (N 7/1), very gravelly, fine sand bridging limestone fill material; structure-less and massive; very friable; many fine and medium roots; clear wavy boundary.


2ab horizon
2Ab Horizon

2Ab- 8 to 10 inches; very dark grey (10YR 3/1) fine sand; granular, weak structure; friable; many fine and medium roots; clear, smooth boundary.


2ac horizon
2AC Horizon

BCb- 10 to 12 inches; dark greyish brown (10YR 4/1) fine sand; granular, weak structure; very friable; many fine and medium roots; abrupt wavy boundary.


C2 horizon
C2 Horizon

C2-12 to 20 inches; greyish brown (10YR 5/2) fine sand; numerous streaks of black (10YR 2/1) from root channels; single grained; loose; few fine and medium roots; abrupt broken boundary interrupted with a limestone pinnacle.


2r horizon
2R Horizon

2R- below 16 inches; very pale yellow (10YR 8/2) fractured limestone; brown (10YR 5/3) fine sand bridging limestone fragments; may be excavated with power equipment


Soil Profile Properties

Infiltration Rate: High

AWC: Very low (2.48 cm)

KSAT: High

Soil Wetness Class: 5 (wet above 25 cm)

Soil Interpretations

Dwellings with Basement: Severe

Septic Tank Absorption Fields: Severe

Local Roads and Streets: Severe

Site Characteristics

Position of Site: Broad marine terraces

Parent Material: Gravelly fill material over alluvium sandy marine sediment, over limestone.

Soil Slope: Nearly level - 0 to 2%

Surface Runoff: Very slow

Erosion potential: Very Low


Soil classification1
Soil Classification

Epipedon: Ochric

Subsurface:

Order: Entisol

Suborder: Aquent

Great group: Endoaquent

Subgroup: lithic endoaquent

Family: Sandy-skeletal, siliceous, hyperthermic


ad