怒江云南北段的村域土地利用及驱动力分析

驱动力分析是土地利用研究的重要内容。选择怒江流域北段高黎贡山自然保护区周边4个自然村为研究对象，应用高分辨率SPOT 5遥感影像数据，结合实地逐块核实，对土地利用/覆被进行分类，并建立土地利用类型分类系统，用Fragstats 33分析得到村域土地利用格局和特征；同时，采用入户调查、半结构访谈和问卷调查等方法，获得的村域详细社会经济数据，建立土地利用与社会经济之间的关联，分析村域土地利用的驱动力。结果显示：村域土地利用主要受自然条件、受教育程度、生活习俗等因子的驱动，且经济收入主要依赖于粗放的土地利用。研究结果能为怒江云南北段的土地资源合理利用和村域经济发展提供数据支持；研究方法可作为局域尺度土地利用研究的参考

LAND USE AND ITS DRIVING FORCES AT VILLAGE SCALE IN NUJIANG RIVER WATERSHED OF NORTHERN YUNNAN

Driving forces analysis is imperative in the study of land use/cover changes (LUCC).We carried out a study on LUCC and its driving forces at village scale.Study pilots were 4 communities adjacent to the Gaoligongshan Nature Reserve in Nujiang River watershed of Northern Yunnan.SPOT 5 remote sensing images combining with field investigation were used to classify land use types and create classification system.Land use patterns and characteristics at village scale were analyzed by using Fragstats 3.3.Meanwhile,socioeconomic data were obtained through household survey,semi structure interviewing,and questionnaires.Relationship between land use pattern and socioeconomic status was built to analyze driving forces of LUCC.Results showed that land use was driven mainly by natural conditions,villagers’ education level, and social customs.At the same time, households’ cash incomes depended strongly upon extensive land uses.Study results provide quantified information for land resource management and village economic development in Nujiang River Watershed of Northern Yunnan. Methods we adopt can be used as a reference for LUCC studies at local scale