Web Soil Survey

 

As a beginner using the Web Soil Survey tool was tricky for my study area since Lake Norman is in four separate counties. Thankfully, the site separated each county, and they were all included when I ran a report. This made it much easier, so I did not have to look up each one individually. I suggest a smaller area of study and one on land so that you can get more information. It is a lot of information (if available) and can easily be overwhelming but it can be a very helpful tool.

 

 

FINDINGS: 

 

I obtained specific data on erosion levels and flooding potential from the Web Soil Survey tool. In Catawba County, 1 out of 15 areas is severely eroded. In Iredell County, 13 out of 46 were labeled mildly eroded, and 5 out of the 46 were labeled under rarely flooded to frequently flooded. Lincoln County had 2 out of 24 as flooded potential and 7 out of the 24 as mildly eroded, and lastly, in Mecklenburg County, 2 out of 26 were mildly eroded, and 1 out of 26 were frequently flooded (websoilsurvey.sc.egov.usda.gov, n.d.). The proximity of residential neighborhoods to the shoreline and each other significantly contributes to the shoreline’s erosion through stormwater runoff. To combat this, a regulation established in 2001 states a 50-foot buffer zone for all upcoming development, where vegetation must be preserved to help prevent further erosion and pollution (Lake Norman, 2024). 

 

 LKN SOIL:

"The lake is mainly underlain by interfingered igneous and metamorphic bedrock. The bottom of the lake consists of various clay and plastic soils. These mechanically engineered soils are maintained and constructed with artificial enforcing, which adds a stabilization factor, and solidifies the lake so it will not break down and wear away. Clay soil contains a high percentage of particles that becomes sticky when wet, and therefore holds together better.^[4]

Lake Norman lies atop two geologic belts, the Charlotte belt and the Inner Piedmont belt.^[5] The Charlotte belt is made up of igneous rock that is 300 to 500 million years old. Igneous rocks are used in construction, hence why the lake was built on top of them. The Inner Piedmont belt is the most metamorphosed belt, and contains deformed metamorphosed volcanic and sedimentary rocks approximately 500 to 700 million years old. The lake is built on the Catawba River, and is underlain by inceptisol soils, which are found in river floodplains. The soil is made of brown forest soil deposits and includes a wide variety of dissimilar soil characteristics. In North Carolina, inceptisols cover almost the whole state, except areas around the east coast"  (Lake Norman, 2024).

 

 

 

 

 Sources:

Lake Norman. (2024, June 9). Wikipedia. https://en.wikipedia.org/wiki/Lake_Norman

 

Websoilsurvey.sc.egov.usda.gov. (n.d.). Retrieved June 28, 2024, from https://websoilsurvey.sc.egov.usda.gov/App/HomePage.htm

LKN Climate Tools

 2005-2011 Lake Norman Water Temperature 

Annual Weather Averages for LKN (data collected 2012-2021) 

LKN Monthly Climate Averages 

 Current Climate and Water temp for LKN

Graph(s) of LKN Water Temp. (past and present)  

 

Since my focus is on Lake Norman’s pollution and its effects, I decided to look at how the lake’s climate plays a part. The first significant pollutant in this lake is bacteria, specifically Lyngbya, which thrives in warmer temperatures and optimal sunlight (Lyngbya et al.). The second major pollutant is stormwater, with nonpoint and point sources included (Quality of Streams and Lakes, n.d.), brought to the waterways through rainfall. These tools show Lake Norman’s weather, water temperatures, and precipitation levels over the years. Using these tools, I can see the number of times stormwater has polluted the lake by the precipitation levels. I can see how often Lyngbya has had optimal growth conditions from the weather and water temperatures.

 

 

 

 

Source:

 

Lyngbya Factsheet. (n.d.). lnmc.org. Retrieved June 27, 2024, from https://lnmc.org/wp-content/uploads/Lyngbya-Factsheet.pdf

Quality of Streams and Lakes. (n.d.). City of Charlotte. https://www.charlottenc.gov/Services/Stormwater/Surface-Water-Quality/Quality-of-Streams

 

LKN using Google MyMaps

Using Google's MyMaps was reasonably straightforward. I have never used this tool before and am not very knowledgeable about technology, so I found it very user-friendly. Having lived around Lake Norman and worked for three of the parks on the Lake, I found it easy to pinpoint locations. This tool lets you color code and/or add symbols to your points, so you don’t have to guess which points are related. You can make your map as straightforward or complex as you wish; it is up to the user.

Ecology Slideshow

Map