Wenbo Wang’s scientific contributions

It is well known that LUCC (Land Use /Cover Change) is the current front and hot field of current global change study. With unique geochemical processes, karst area is often ecologically fragile, where ecological carrying capacity is low, and the ability against external influence and disturbance weak. Over the past few decades, the karst areas in southwest China have experienced rap id social and economic change which brought forth extensive influence on local land cover. Especially, karst rocky desertification, as a result of unreasonable land use in ragged karst mountain area, emerged and expanded at an alarming rate in Guizhou province and Guangxi Zhuang Autonomous Region, as has caused increasing perception from domestic academic community. In the past 10 years, many scholars have carried out extensive studies on the karst rocky desertification and other ecological problems in the area. However, most of them just focused on the singular aspect, and a more comprehensive study on the land use and land cover change in the areas has received little attention in international LUCC community. Based on the above understanding, by making lots of ground investigation and using the remote sensed images of Landsat-MSS in the year of 1973 and Landsat-TM in 1990 and 2002, and with the support of triple “S” technique of RS, GIS and GPS, the authors calculated the indexes of singe land cover change velocity, comprehensive land cover change velocity, land use degree, and spatial land cover distribution, and made a case study on land use / cover change over the past 30 years in Maotiaohe river basin, which is a typical karst watershed with fragile eco-environment. The results show that: (1) the leading land covers are cultivated land, grass land, shrub land and forest land; (2) Since the beginning of 1970 s, the land covers in the study area have experienced dramatic change, but there are obvious difference among different types of land covers, with paddy field, shrub land, grass land, and other forest land decreased first and then increased, and dry field and rock exposed land increased first and then decreased, and forest land, water area, urban construction land, rural settlement, and transportational and industrial land continuously increased; (3) the land use change velocity and land use degree in the period from 1973 to 1990 is higher than that from 1990 to 2002. It need to be pointed out that rock exposed land expanded in the 1970 s and 1980 s, as means that the land use in the period was not sustainable. Since 1990, the rock exposed land decreased and the ecological quality tends to be better; (4) with the area of land covers expanded and decreased, the mean elevation and gradient of each land covers changed.

Tourists investigation is the foundation and basis of tourism planning. It is particularly crucial to understand tourists’ demand in the planning and development of National Forest Park because of its eco-tour attributes. Through several respects such as tourist’s behavior analysis, appraisal of scenic spot, travel arrangement and consumption, opinions and suggestions of visitor and their basic situation, etc. An overall investigation was conducted to the Taibai National Forest Park, and with in-depth analysis to the investigation results, some issues tourists concerns most, competitive strategy and sustainable development of the park are put forward to the planning as suggestion.