戒台寺和潭柘寺古树衰老的几个生理特征研究

对戒台寺和潭拓寺的卧龙松、自在松、抱塔松、活动松等四棵油松、九龙松(白皮松)、娑罗树(七叶树东西两棵)等古树的树体温度、叶绿素含量、叶及土壤矿物质含量等生理参数进行测定，与40年生的油松、白皮松、七叶树进行对比，结果表明：树木的衰弱程度与其树体温度及其变化幅度有一定相关性，即越衰老的树木树体温度越高，变化幅度越大；老树的叶绿素含量一般均比对照低；衰老古树呈现明显的缺素症状．根据研究结果提出了古树保护的建议．

Effect of Soil Nutrition on Growth of Old Trees in Jietai Temple and Tanzhe Temple

This paper mainly studies on some physiological senescence parameters of wolong pine, zizai pine, baota pine, huodong pine (all of them are Pinus tabulaeformis), jiulong pine (Pinus bungeana), suoluo tree (Aesculus chinensis), all of them are growing in tanzhe temple and jietai temple. We did some systematic research on the trunk temperature of those old trees, the contents of chlorophyll and carotenoid in leaves, the contents of mineral nutrition in leaves and soil. In comparison with corresponding trees (40 years), which are growing in the same environment, we conclude that. the elder trees have a more high temperature than that of the younger, the contents of chlorophyll in the leaves are much lower than that of the control, but there is also exception, the content of mineral element in the leaves is much lower than the control. Some nutrition mineral deficient symptoms apperance in those old trees. Some conservancy suggests were also gaven in this paper.