Prof. Paul Opdam is a retired professor from Wageningen University The Netherlands. He occupied the landscape in spatial planning chair at Wageningen University (Land use planning group) and also had been a senior researcher at ALTERRA research institute, which is part of Wageningen University Research Center, NL. He pioneered in developing a spatial approach for conservation biology in heavily used landscapes, thus providing a scientific basis for the planning of ecological networks. In more recent work he considers incorporating the sustainability concept into multifunctional landscape planning and design based on concepts such as landscape services, green infrastructure and social-ecological networks. Currently he is specially interested in the influence of landscape knowledge on decision making in landscape governance.