摘要
基于ASTER-GDEM V2数字高程模型,选择云南省元阳、绿春、红河、金平4县为代表的红河哈尼梯田为研究区域,结合野外调查,应用GIS平台提供的空间分析方法,依据梯田斑块图和数字高程模型,对红河哈尼梯田的空间分布与海拔、坡向、坡度等地形指数的关系和规律进行研究。结果表明:研究区梯田总面积是68 927 hm^2,面积≥10 hm^2的梯田斑块数量较少,但面积占梯田总面积的59.15%,说明梯田以连续大面积斑块分布为主;梯田多分布在海拔800~1 800 m,坡度6°~35°的南坡、东南坡和西南坡坡向上,而连续大片梯田则集中分布在海拔1 200~1 400 m,坡度15°~25°的南坡上;红河哈尼梯田的空间分布特征,与哈尼族聚落的空间分布格局、哀牢山地貌和环境特征密切相关。
Based on digital elevation model of ASTER-GDEM V2, representative Hani terraced fields in Yuanyang county, Lvchun County, Honghe County and Jinping County of Yunnan Province were selected as a case study area. Combing with field investigation and using spatial analysis method based on GIS platform. The relationships between the spatial distribution of Honghe Hani Terrace and topographic index of elevation, slope and aspect was analyzed. The research results showed that the total area of terrace of the study area was 68 927 hm2. The number of terrace patches which area was larger than 10 hm2 were few, but accounted for fifty-nine percent of the total area of the terraces. So the results showed that the distribution of the terrace was a continuous large area. The terraces are mainly distributed from 800 m to 1 800 m, the slope of 6°-35°, with the southeastern slope and southwestern slope. The large continuous terrace was concentrically distributed at the elevation of 1 200-1 400 m, the slope of 15°-25°, with the southern slope. The distribution characteristics of Hani terraces in space were related to the spatial distribution pattern of settlements, the geomorphological features and the environmental factors of Ailao Mountain.
出处
《西南林业大学学报（自然科学）》
CAS
北大核心
2016年第3期153-157,共5页
Journal of Southwest Forestry University：Natural Sciences
基金
西南林业大学云南省省级重点学科(林学)资助
国家自然科学基金项目(41371066)资助
西南地区生物多样性保育国家林业局重点实验室开放基金资助
关键词
DEM
红河哈尼梯田
地形指数
空间分布
特征
digital elevation model, Honghe Hani terrace, topographic index, spatial distribution, characteristic
