【摘要】 耕地田坎是社会与自然等因素综合影响的结果,人口规模与地形地貌对耕地田坎密度起决定作用。湖南省的耕地田坎密度与地形地貌显著相关,区域分布特征不明显。山区与丘陵区,同一坡度级、同一类型耕地的田坎系数是一致的。耕地田坎面积对粮食产量统计有一定的影响,因此土地调查与粮食产量统计的耕地标准应该统一。更多还原

【Abstract】 Farmland field ridge is a result that comprehensive effected by social and natural factors.Population scale and topography geomorphology play decisive roles in farmland field ridge density.The density of farmland field ridge of HuNan province is significantly related to topography geomorphology which has no significantly regional distribution characteristics.The mountain area and the hilly area,the farmland in the same slope and same type has consistent field ridge coefficient.The farmland field ridge has certain effect in the statistics of grain yield.The standards of the land survey and grain yield should be consistent.更多还原