摘要
土地利用的方式和程度受地层岩性、土壤、坡度以及人类活动等诸多因素的影响。现主要从地形坡度因素人手，应用GIS与RS技术，对研究区的地形坡度与土地利用方式和程度的空间相关关系进行分析，得出喀斯特地区地形坡度与土地利用之间的相关关系。研究表明：坡度对土地的利用方式影响较大，水田一般分布在0°～15°的平坡地和缓坡地上，而旱地主要分布在60～25°的缓坡地上。同时土地利用程度与坡度之间存在负相关，坡度越大土地越不适合人类的应用，但在喀斯特地区由于其独特的地貌特征，地表起伏大，山地多，平地洼地少，呈现为高坡度等级与高土地利用程度共存的现象。
The manner and extent of land-use is impacted by the lithology, soil, slope and human activities. Relationship between terrain slope,land-use and space is studied based on GIS and RS tech- nology. Study suggests that effect of slope on land-use is notable. Paddy fields are generally distributed in slope of 0° -15° and dryland is mainly distributed in slope of 6° -25°. There is a negative correlation between the extent of land-use and the slope. Land with large slope is more unsuitable for human being＇s application. But because of the unique karst landforms, there exist undulant grounds, more mountains, scarce plains and depressions which represents a phenomenon of high slope degree and high utilization level of land resource.
出处
《贵州师范大学学报（自然科学版）》
CAS
2008年第1期18-21,共4页
Journal of Guizhou Normal University：Natural Sciences
基金
贵州省科技厅2006攻关项目(重大专项):黔科合重大专项字(2006)6006-2<遥感数据库与空间信息网络共享平台诚点研究>
