中文摘要：

在萨拜娜 przewalskii Kom.and S 的叶的 1C 价值以及脯氨酸，硅， MDA 和相对的水内容的季节的变化。chinensis (林) 蚂蚁。被测量。结果证明叶的 13C 价值在不同季节是显著地不同的：在冬季更低却在夏天更高。13C 价值断然与空气温度和土壤温度被相关。这证明萨拜娜的叶的 13C 是温度的一个成功的实验原告。而且，叶的 13C 价值是断然与 S 与亲戚有关与脯氨酸和硅内容有关，并且否定地浇内容和 MDA content.Compared。chinensis， S。przewalskii 象更低的 MDA 和相对的水内容一样有更高的 13C 价值，脯氨酸和硅内容。所有这些结果提供了要认为是另一个索引评估冻结萨拜娜的忍耐，为 13C 是可行的充分证据。

英文摘要：

Seasonal variation of foliar δ13C values as well as proline, silicon, MDA and relative water content in Sabina przewalskii Kom. and S. chinensis （Lin.） Ant. were measured. The results show that foliar δ13C values were significantly different at different seasons： lower in winter but higher in summer. δ13C values were positively correlated with air temperature and soil temperature. This demonstrates that foliar δ13C of Sabina is a successful empirical indictor of temperature. Furthermore, foliar δ13C values were positively related to proline and silicon content, and negatively related to relative water content and MDA content. Compared with S. chinensis, S. przewalskii has higher δ13C values, proline and silicon content as well as lower MDA and relative water content. All these results provided strong evidence that it is feasible for δ13C to be regarded as another index to evaluate freezing tolerance of Sabina.