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。
Then the situation of Taxus L. resource in Yunnan was discussed, which was used as background information for forming the project, experiment and demonstration of afforestation and m...
此后，论述了云南省的红豆杉资源状况，以作为“云南红豆杉药用人工林营造技术试验示范”的立项背景。
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