Using tree ring chronologies of width, maximum and minimum desity for Huashan Pine from Huashan, Shaanxi, and the tree growth model, the response of tree radial growth to climate factors (e. g. , air temperature and precipitation) was studied.
依据陕西华山的华山松树木年轮宽度、最大密度与最小密度年表，以及对树木生长模拟结果，本文分析了树木径向生长对气候因子（气温和降水）的响应状况。
参考来源 - 树木年轮资料的可靠性分析——以陕西华山松为例·2,447,543篇论文数据，部分数据来源于NoteExpress
夏天的树叶是绿色的，因为它们富含叶绿素，这种捕捉阳光的分子可以将这些能量转化为新的树木生长材料。
Summer leaves are green because they are full of chlorophyll, the molecule that captures sunlight converts that energy into new building materials for the tree.
面对气候变化，当树木生长的超出它们理想栖息地时，这些飞行的生态系统工程师对于重新植树能有巨大的帮助。
As trees outgrow their ideal habitats in the face of climate change, these flying ecosystem engineers could be a big help in replanting trees.
“4-H 俱乐部”的女孩们参与植树，并在树木生长的初期照顾它们。
The 4-H girls planted trees and took care of them during the early stages of growth.
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