Natural world heritage conservation and tourism: a review

The trade-off and synergy between heritage conservation and tourism has become the focus of natural world heritage research. To gain a better understanding of the global researches on natural World Heritage conservation and tourism, we comprehensively reviewed relevant peer-reviewed research literature based on Web of Science (WOS) and China National Knowledge Infrastructure (CNKI). We find that (1) the theoretical research of natural heritage conservation and tourism has gone through a process from emphasizing the protection of heritage value to pursuing the synergy of heritage protection and tourism development; (2) the main research methods include investigation research methods, indirect research methods and experimental research methods; (3) "3S" technology (remote sensing, geographic information system, global positioning system), three-dimensional laser scanning technology, virtual reality (VR) technology, augmented reality (AR) technology, holographic projection technology and other modern technological means are applied to the protection and tourism development of natural properties; (4) the common coordinated development models include ecological science tourism, community participation in tourism, ecological compensation model, world heritage—buffer zone—surrounding areas coordinated protection model and so on. We analyzed the research progresses through (1) the theories proposed in the literature, (2) the main methods applied to address the issues on natural heritage conservation and tourism, (3) the technologies applied in the researches and (4) the coordinated models of heritage conservation and tourism. Furthermore, we put forward the following research prospects: (1) systematically explore the conservation methods and theories based on world heritage criteria; (2) formulate corresponding conservation systems and ecological restoration standards for different types of world heritage; (3) give full play to the complementary advantages of various research methods and reveal the mutual feedback mechanism between tourism and heritage conservation; (4) develop ecological restoration technology based on biodiversity restoration, establish radial ecological corridor, and expand the benign ecological environment of the properties to wider periphery; (5) build ecological compensation development models based on the perspective of heritage tourism and value realization of world heritage.