Land Treatment Exploration Tool — Step 5: Select Search Parameters

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Detailed Description

This video describes Step 5 of the Land Treatment Exploration Tool. In Step 5 the user determines a distance or boundary to search for legacy Land Treatment Digital Library records. The user also indicates if the returned LTDL treatments are statistically evaluated against the planned treatment boundary using a Bray-Curtis Dissimilarity calculation.

These tutorial videos were created to aid in the use of the Land Treatment Exploration Tool (LTET). These videos guide a user through the main steps of the tool. Each year, public land managers make decisions regarding restoration and rehabilitation actions that influence landscapes and ecosystems. Many of these decisions involve soil and vegetation manipulations, often known as land treatments. Land treatments include activities such as removal or alteration of plant biomass, seeding burned areas, and herbicide applications. These treatments were historically planned on a case by case basis with decisions about implementation approaches, methods, and operations derived from personal experience of past successes or failures. Modern adaptive management strategies strive to capture this local knowledge through time, both locally and regionally. In 2017, the U.S. Geological Survey partnered with the Bureau of Land Management to create the Land Treatment Exploration Tool to facilitate adaptive management of land treatments. The Exploration Tool taps into a wealth of information about past treatments in the Land Treatment Digital Library (LTDL), a catalog of information about all known treatments on public lands administered by the BLM in the Western United States.

Tutorial Video Playlist:

  1. Land Treatment Exploration Tool — A Quick Introduction
  2. Land Treatment Exploration Tool — Step 1: Describe Proposed Treatment
  3. Land Treatment Exploration Tool — Step 2: Select Treatment Boundary
  4. Land Treatment Exploration Tool — Step 3: Explore Site Characteristics
  5. Land Treatment Exploration Tool — Step 4: Summarize Your Proposed Treatment Area and the Developing Report
  6. Land Treatment Exploration Tool — Step 5: Select Search Parameters
  7. Land Treatment Exploration Tool — Step 6: Compare the LTDL Treatments


Date Taken:

Length: 00:03:25

Location Taken: Corvallis, OR, US


Welcome to the Land Treatment Exploration Tool tutorial. Step 5, select search parameters. In step 5 the user will search for legacy land treatments and statistically compare them to their planned area. To read some instructions for this step, you can click 'more' at the top of this text to expand the instructions. First, you select a distance or boundary to search for legacy Land Treatment Digital Library records. The dropdown list includes a buffer distance, BLM field office, BLM district office, State, Major Land Resource Area, EPA Level Three Ecoregion and Level Four Ecoregion. When boundary is selected, it will display on the Planning Map. LTDL treatments will be returned from this search if they intersect the boundary. It might be helpful to turn on the LTDL layer to get an idea of how many treatments will be returned in your search. To do this, navigate to the Layers/Legend tab, expand the Land Treatment section, and turn on the LTDL Treatments layer. In this example I have selected a buffer distance to search for treatments. The default distance is 10 miles, but I can easily modify this by clicking into the box and adjusting the value. I will expand the search to 20 miles. Next, the user can optionally include similarity statistics. We use a Bray Curtis Dissimilarity calculation to compare the planned area against all of the LTDL treatments returned in the boundary search. We offer three different similarity calculations. Climate will compare precipitation and temperature, heat load will compare the modeled incident radiation, and landform will compare the general terrain. For more information on the similarity calculation, see the User Guide section of the Exploration Tool. Clicking the 'Query LTDL' button will begin the processing. Depending on the size of your boundary and if you selected the similarity models, this step may take several minutes. While you wait for the query to finish, you can take this time to look through the Site History tab, as Step 3 had previously directed. When the query finishes, it will automatically toggle to the Results Tab. This function can be turned off by deselecting the box for the text 'Automatically switch to Results tab when query completes.' The status of the query will be displayed at the bottom of Step 5. The first return is "All treatments in boundary returned' and the Planning Map will then highlight those LTDL polygons. The next returns will display when each of the three similarity rankings are completed. When each of the query steps are completed a Done message will appear and the Results Tab will be populated with the returned LTDL data. The left side of the Exploration Tool will now be on Step 6.