关键词: 覆膜开孔率, 累积蒸发量, 入渗定额

Abstract: Landscape fragmentation is one of the major causes of biodiversity loss, which can impede the mobility and gene exchange of organisms, and thus, lead to the possible loss of certain species. Biodiversity conservation corridor is recognized as a physical network to connect isolated nature reserves. Aimed to assist the setting-up of biodiversity conservation corridors in the Greater Mekong Sub-region (GMS), an approach to design a corridor between two national nature reserves in Xishuangbanna for the conservation of gaur (Bos gaurus) was explored. According to the acquired information on the land use and the passages of gaur during field survey, and based on the recent satellite images and digital elevation model (DEM), the habitat feature preferred by gaur was analyzed in terms of forest type and its distribution as well as the topographic factors including altitude and slope, and a suitable corridor scenario was proposed. Some suggestions for the management of proposed corridor were also put forward.

Key words: Open holes ratio of plastic mulch, Cumulative evaporation, Perforated rate