结果表明，梨属矮化砧木做中间砧，多数组合表现出树体干径细，高度低，发育枝短，但冠径较大。
The results showed that with pear genus dwarf stocks, the most combinations' trunk diameter is thinner, tree height is lower, growth shoots length is shorter, but crown diameter is bigger.
一旦到了那儿，他们就用卷尺，测径规和一种手持式激光器来测量一片500平方米地块内的所有树木的高度和干围。
Once there, they use tape measures, callipers and a hand-held laser to measure the heights and girths of all the trees within a 500-square-metre plot.
文章除论述元谋干热河谷区的自然条件、参试树种的高、径生长状况和分析结果外，还详细介绍了抗旱耐热造林树种的选择方法。
The analysis results of height and diameter growth of test species, the method to select drought resistant and heat resistant afforestation species were introduced in details in this paper.
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