植被

• A survey of vegetation types on the earth indicates that forests are not ubiquitous .
  环视地球上的植被类型表明，森林并非到处存在。
• Forest is replaced by other vegetation types such as the forest steppe or steppe .
  森林将被其它植被类型（例如森林草原或草原）所替代。
• A vegetation analysis starts with the choice of stands on the basis of the reconnaissance .
  在勘察的基础上，植被分析首先选择群落片段。
• This represents a substantial measure of nutrient conservation in soil and vegetation systems .
  这一点正是在土壤植被系统中保持养分的实质措施。
• The term "vegetation type" designates the principal unit of major rank in russian geobotany .
  在苏联地球植物学中，“植被型”一词是指主要高级单位。
• Landforms of topography, vegetation and climate are influential factors in formation of soils .
  地形或地形学、植被和气候都是对土壤形成有影响的因素。
• Knowledge of related vegetation in other areas is usually not considered when defining the vegetation units .
  在确定植被单位时一般不考虑其他地区有关的植被资料。
• This region contains areas which are primarily covered with either high density conifers or meadow hardwoods .
  该地区，主要的植被覆盖是高度的针叶树类或草地阔叶树类。
• The smallest part of the plant cover that can be distinguished as a phytocoenological unit is the "coenocell" .
  可以区分出来作为植物群落学单位的植被的最小部分是“群落单元”。
• This cline exists along a transect from the sacramento valley to near the crest of the sierra nevada mountains .
  这一渐变群是沿着萨克拉曼多谷地到西瓦内华达山脊的植被带存在的。