Native Resources International (a GSSI research institute operated by UC Berkeley) located in Phoenix, Arizona in the USA launched an environmental project (signed a contract). The service they offer included investigating and inspecting native plants to produce vegetation maps and conducting environmental evaluation and landscape design. The main mission of the research institute’s project is to protect native plants such as ironwood, palo verde, and mesquite trees. Many of these native plants were destroyed (or went extinct) in Arizona as the state underwent a rapid period of land development. GNSS technology is being used to aid in their effort of preserving the natural environment. This restoration project is divided into many stages. The first stage of the research institute's execution plan is to complete precise field inspection and create a list of native plants. It led the institute to propose a development of a special ecosystem.At that time, the plants were removed carefully. They prepared the transplantation of trees to a nursery until the development project is complete. When the development project was finally complete, the research institute returned the plants to their original places. During the development period, the research institute developed a map of the individual plants.

The DGNSS system helped them collect information about the plants such as location, type, height, and condition. The DGNSS system collected information and conveniently displayed the location information. It helped them decide whether to rescue special plants or not by simply standing next to them. After returning to the office, the researchers transmit the location and other information about the plants to the DGNSS S/W and display them in the form of DXF file.

Using the AutoCAD software, they integrate the information in the digital field map, edit the client’s development plan, rearrange the special plant plan, and safely preserve nature and other wide areas. After deciding which plants to move, they send other teams to the saved spots to protect the trees in the nursery until the development project is complete. In the past, survey stakes, rocks, trees, landmarks, etc. were used to mark the location of certain plants. This method entailed hard labor, waste of time, and inaccuracies.

Today, it is possible to use less resources in individual projects and manage them separately by using the GNSS system. They create maps and reports very easily by sending data to the computer and provide information to clients in a more specialized manner. It allows a large amount of information to be collected in a short period of time for easy use and conversion into D/B. Being able to handle even the properties of plants is a bonus feature of this method.

Residents of South Florida have imported Australian melaleuca trees over many centuries in order to transform wetlands into forests. However, melaleuca have grown excessively, surpassing the original purpose. Now, they are spreading over 2,000,000 acres of land, posing a serious threat to native ecosystems and water resources. In an attempt to restore the ecosystem, regional national parks and the local government of South Florida are using DGNSS, including a GIS software that displays location information, to eradicate melaleuca trees. Workers also maintain the GIS by updating, processing, and improving the information.