摘要
在介绍田坎系数测算理论基础上,以湖北省田坎系数测算为例,利用ArcGIS软件建立田坎测算样方数据库,阐述了田坎系数测算和建库过程中涉及的关键问题和解决方法;探讨了一种利用"区间估计"原理统计分析田坎系数初算成果的方法,并用实例进行论证,其结果表明:与平均值测算法相比,其具有较好的科学性和实用性。
With the measurement in Hubei Province as an example, this paper establishes a sample database of ridge coefficient measurement by adopting ArcGIS software, and furthermore elaborates the key problems and solves methods involving the measuring and constructing process, based on a brief introduction to ridge coefficient measuring theories. By using ＂interval estimation＂, the paper discusses and demonstrates a method which is used to analyze the first result of ridge coefficient. The result indicates that compared with average-estimation, ridge coefficient measurement is much more scientific and practical.
出处
《国土资源科技管理》
2009年第4期81-85,共5页
Scientific and Technological Management of Land and Resources
关键词
样点
坡度
田坎系数
土地调查
sampling points
gradient
ridge coefficient
land survey
