A qulifacation for someone working in Natrual Resource system might be

A person who is working with Natural Resource system has the main responsibility of safe guarding the natural objects.

Explanation:

He / She must be first aware of things which are affecting the natural resources, history of how nature is maintained, factors which can bring back nature, etc.

So to know and continue to work on this, the person must be aware of Problem solving skill so that environment can be protected and given to future generation and this is not the thing where only one company or a department is responsible.

It is the duty of every individual to protect environment.