UAV application solutions in forestry management
In the current process of continuous social and economic development, ecological and environmental issues have attracted more and more attention. Forestry has become the focus of current government work. Due to the large area and density of forests, monitoring is extremely difficult. Traditional manual inspections The protection methods are far from satisfying the role of forest resources protection in the new period. China has a forest area of 175 million hectares, a forest accumulation of 12.456 billion cubic meters, and a forest coverage rate of 18.21%. It is both a country with large forest resources and a country with frequent forest fires. The effective use of high-tech drones to solve forestry resource surveys and forest fire prevention has become the top priority of forestry work.
UAV technology means that the aircraft does not need a pilot, and people can remotely control the aircraft through the program on land. And the mission load on the aircraft, such as visible light cameras, multispectral cameras, and video sensors, can complete the monitoring of the target area. UAV technology has the characteristics of low cost, simple operation, convenient transportation, and low risk, which has made it a breakthrough operation and development in many areas such as land and resources survey, emergency response, and urban planning. The application of drone technology to forestry production can not only effectively reduce the amount of manual work, but also realize real-time monitoring of all links in forestry production, effectively prevent the occurrence of forest fires and unexpected natural disasters, thereby improving the forestry production Economic benefits. It can also improve the technical level of law enforcement managers and effectively protect forest resources.
Drones have unique advantages in forestry resource investigation, forest pest and disease protection, forest fire prevention, and forestry law enforcement management. They can quickly carry out inspections and monitoring of mountain forests, obtain accurate information on forest resources, and timely discover illegal acts such as theft and deforestation. It is forestry Managed "air umbrellas".
1. Forest resources survey
The forest survey is to timely grasp the dynamic laws of the quantity, quality and production and disappearance of forest resources and their relationship with the natural environment, economy, management and other conditions, so that the state can formulate and adjust forestry policies and prepare forestry plans to ensure forests. Resources are fully utilized in the construction of the national economy.
Forestry survey workload is heavy, mountain climbing and wading difficulties, high intensity, and general forestry survey cycle requirements are shorter, data requirements are more detailed, UAV remote sensing system is mobile, flexible, can quickly reach the work area, affected by terrain, weather environment The impact is small, high-resolution aerial data of forest resources can be obtained in real time, and the ability to undertake sample survey tasks is basically available. Drones can obtain high-resolution orthophotos, and investigators can obtain accurate data such as forest tree types, distribution ranges, and areas without needing to be outdoors, effectively reducing field work hours, reducing labor intensity, and improving work efficiency.
UAV aerial photography technology can accurately locate the distribution of dead wood, discolored trees, and abnormal forests from the obtained high-resolution images, assist in determining the health and damage levels of forests, determine the impact range and area of forestry diseases and insect pests , Has the advantages of high efficiency and fast, large detection range, accurate identification orientation, flexible organization and implementation, etc., especially for the detection of complex areas difficult to reach Seco Road Insurance and other personnel has irreplaceable advantages.
2.Afforestation area verification
High-resolution aerial images obtained through drones can obtain wetlands and desertified sandy land areas, accurately calculate the area of afforestation, tree planting, and also calculate the survival rate and mortality rate from dead tree and total plant number. It is used for forestry management. Cost calculation and afforestation planning. Orthophotos can also be used to locate trees that need to be replanted.
3. Forest fire disaster relief
When a fire occurs in a forest area, the visibility of the fire field is low. Traditional manned aircraft fly above the fire field. Observers cannot see the specific conditions of the fire field clearly, and they will also bring danger to their own flight. Drones equipped with sensors such as cameras and video can fly over the disaster area, take photos or videos of the disaster area, and pass them to the ground rescue personnel to complete the fire detection and fire detection tasks. And when the environment is harsh and the visible light camera cannot work, it can also be equipped with an infrared imaging system, which can overcome the restrictions of severe weather conditions such as rain, snow, fog, etc., and can work normally at night; it can also wear after a fire. The thick smoke is used to capture the real-time status of the fire and provide a reference for the on-site fire suppression work.
4. Forestry law enforcement management
The drone is equipped with a video sensor and a visible light camera, which can be used for daily inspections of forest resources. Its fast response capability can greatly improve the operational efficiency of forestry law enforcement departments. If you receive a case of illegal logging, you can quickly bring the drone to the scene, take aerial photographs of the illegal logging, accurately capture the area of illegal logging, plant trees, and strengthen the monitoring of illegal logging.
In cases such as illegal occupation of forest land, deforestation and land reclamation, drones can quickly obtain image maps through aerial photography, and analyze the location and extent of forest damage, in order to timely deforestation, deforestation, and other deforestation. Behavioural correction and disposal.
5. Artificial rainfall
Unmanned aerial vehicle systems can be used for artificial rain enhancement. They are easy to use, have good maneuverability, are easy to put in, and do not have the risk of personnel safety. They are particularly suitable for artificial rain enhancement in forest fire prevention operations. The drone carried a total of 10 rain-increasing flame bars, which were mounted between the belly of the aircraft and the landing gear through a hanger. Ignition of a flame bar during flight is controlled by the remote control on the ground, and the status of the flame bar is indicated by telemetry information. At the same time, multiple smoke pipes can be ignited at the same time based on the condition. According to the relationship between the amount of silver iodide delivered by man-machined artificial rainfall operations and the operating area, the silver iodide content of 10 rain-increasing flame bars can meet the requirements of 100 square kilometers of artificial rainfall operating areas.