城市干线和绕城公路蜀桧叶片中的N和S含量高于对照点，而城郊公路则接近对照。
The concentrations of N and S in Sabina chinensis leaf were higher along urban trunk roads and belt highway than at reference site, while those along suburban roads were similar to the reference.
在陕州风景区内，以龙柏、蜀桧、榆叶梅、红叶李等作为供试树种，研究各种防治技术的防治效果。
Pyramidalis, Prunus triloba and Prunus cerasifera cv. Ptropurpurea and so on as tested tree species, the control effects of various control technologies were studied.
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