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.
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。
Therefore, a new kind afforestation budgetary method that takes the multiple parameter m as the index is put forward by the characteristics of city ecological system.
为此，根据城市生态系统的特点提出了一种新的以综合参数M为指标的绿化概算方法。
Using drilling-and-blasting method and convenient highway transportation for afforestation on two sides of highway in mountain area, the efficiency of large-scale afforestation can be greatly raised.
利用钻孔爆破方法和公路运输的便利条件在山区公路两侧植树造林，能够大大提高大规模造林的效率。
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