齐齐哈尔地区1：100万草地面状资源分布数据集（1993年）

本数据集所反映的草地包括植被覆盖度>5%的各类天然草地，次生草地，树木郁闭度<0.3%的疏林草地，灌木郁闭度<0.4的灌丛草地，有放牧利用价值的高寒灌丛，以及施以人工措施的改良草地和人工草地。本图集最小图斑面积为：天然草地4 平方毫米，人工草地2 平方毫米。地面面积小于4 平方千米的天然草地和小于2 平方千米的改良草地被视为零星小块草地，本图集不与反映。

The grasslands covered by this dataset include various natural grasslands, secondary grasslands, sparse woodland grasslands with a tree canopy density of less than 0.3%, shrub grasslands with a shrub canopy density of less than 0.4, alpine shrubs with grazing value, as well as improved grasslands that have undergone artificial treatments and artificial grasslands. The minimum mapping unit area specified in this atlas is 4 square millimeters for natural grasslands and 2 square millimeters for artificial grasslands. Natural grasslands with a ground area smaller than 4 square kilometers and improved grasslands with a ground area smaller than 2 square kilometers are categorized as scattered small patches, and are not covered in this atlas.