Tree species in Chinese pine, spruce, birch, Yang, Liu mainly forests are apple, pear, peach, apricot and so many kinds of wild grass, nearly 100 species.
树种以油松、云杉、白桦、杨、柳为主，经济林有苹果、梨、桃、杏等，野生牧草种类较多，近100种。
The author started the research of Osmia from 1995 and obtained some progress on the trap technology of wild Osmia and application of Osmia pollination to the apple - pear trees.
作者于1995年开始研究壁蜂，在野生壁蜂的采集技术研究以及在苹果梨上利用壁蜂授粉的应用研究等方面取得了一些进展。
Wild tomatoes, for instance, are very small and round, but through selective breeding we now have cultivated tomatoes that may be pear-shaped, egg-shaped, or even donut-shaped.
举个例子，野生番茄非常小且圆，但是通过选择育种，我们现在培育出的番茄可以有梨型、鸡蛋型，甚至炸面圈形状的。
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