Together with us, our customers quickly and safely perform their forest inventory from the air. It can be anything from growth rates in new plantations to signs of pest infestations.
Preferably, most of our inventory missions are carried out together with our partner Älgflyg AB , who with their unique expertise, technology and method is the absolute leader in forest- and wildlife inventory today.
Forest Clearing Inventory
When planning for a clearing inventory, the client normally provides us with a digital map data of the area, which the computerized system produces a flight route that minimizes the flight distance with respect to the helicopter's fuel consumption and the deployed fuel support or the nearest airport. When the pilot then follows the established route between all map objects, we achieve the best possible profitability and performance for the customer.
At all clearing- and planting inventory projects, we use a digital "form" where the operator enters the information and actions requested by the client, such as:
- Number of stems / area
- Wildlife damages
- Desired time for the next action
- Level of difficulty for clearing teams
In this type of mission, effectiveness usually is around 40-60 stocks per hour depending on the distances between them. These inventories are usually done in spring and before flushing when the ground is still covered with a thin snow cover.
The most common practice is that the client provides a digital map of its forest holdings with the areas that have been most exposed to the wind marked out. This can include seed tree populations, newly planted areas on unfrozen ground, edges on new clearings in the exposed wind direction etc. Counting broken treetops in high areas can also be of interest.
Älgflyg AB creates a flight route that minimizes the flight distance with respect to the helicopter's fuel consumption and the deployed fuel support or the nearest airport, and the pilot then flies along the established route between the map objects. The results from the survey are recorded directly in the operator's computer, while the pilot transfers the helicopter to the next map object. Any eventual damage discovered along the route between the predetermined map objects is recorded and stored in the same way before the helicopter continues on its path.
The operator notes the findings on a customized template composed together with the client. The system is very flexible and can be set to handle a combination of predetermined points and more scattered diffuse boundaries. After landing, the data is compiled and reviewed for quality before the final results are forwarded to the client. The material is completely ready for use upon delivery, so clients can immediately pass the information from the inventory out to their organization.
Insect Damage Inventory
The above processes for damage surveys have been used with great success also for the inventory of damage caused by insect infestations. Among other things, the two autumns after the storms Gudrun and Per, the method was used for bark beetle inventories, and the system worked flawlessly delivering very good results to the client ...
We perform inventory of wild stocks from helicopter all over Sweden, both with conventional methods and with Distance Sampling.
1 + 1 = #1...
HeliAir Sweden offers all forms of wildlife inventory from helicopter in cooperation with Älgflyg AB, which is the absolute leader in this field. We preferably use a method for inventory called Distance Sampling, which, among other things, means that observations are registered together with a huber of data from the environment where the animal is located at the actual moment of observation. This increases the statistical certainty in the inventory, and the method is used worldwide for wildlife inventories. Distance sampling is a method that is very suitable for the inventory of large areas since it's not only statistically superior, but also cheaper than other existing inventory methods.
- The inventory is made along predetermined routes which are parallel and evenly distributed throughout the survey area. All observed animals are positioned using GPS and included in the statistical calculation base
- Navigation and positioning of the animal is made with a proprietary system based on GPS paired with a laptop. This system is unique and the best of its kind for this type of inventory. Älgflyg AB is the only company in Sweden that offer this type of system
Results and Report
After completion of the inventory assignment, the customer receives a report containing:
- A description of the work
- Data tables showing the population composition and numbers
- Maps showing the animals' positions at the inventory in relation to the inventory lines
In addition to the above, an on-site presentation of the results of the inventory is offered at the appropriate place where hunters can have the opportunity to ask questions.
Contact us and we'll tell you more...
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