| 皖东石灰岩山地榆科树种的生理特性 |
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| 引用本文： | 傅松玲,郑兴林.皖东石灰岩山地榆科树种的生理特性[J].南京林业大学学报(自然科学版),1999,23(3):75-78. |
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| 作者姓名： | 傅松玲 郑兴林 |
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| 作者单位： | 1. 安徽农业大学 合肥 230036
2. 安徽管店林业总场 |
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| 摘 要： | 以琅琊山天然次生林中琅琊榆、醉翁榆、青檀、榉树、扑树等树种为试验材料，研究皖东石灰岩山地榆科树种生理生态特性，结果表明榆科树种抗旱、耐瘠、喜钙，是石灰岩山地适宜造林树种。具体表现在：（１）榆科树种光补偿点高，５种榆科树种光补偿点分别为６．３５，４．４５，５．０３，３．３２，５．５３Ｗ／ｍ２；（２）水分利用效率高，分别为３．１６×１０－２，２．９２×１０－２，２．６５×１０－２，２．４８×１０－２，２．９８×１０－２ｇ／ｇ（ＤＭ／Ｈ２Ｏ）；（３）水势值偏低，５月份中午叶片水势为－８．４，－７．２，－９．１，－８．０，－９．０Ｐａ。
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| 关 键 词： | 石灰岩山地 榆科树种 生理生态特性 |
| 修稿时间： | 1998年6月26日 |
A Study on Physiological Characters of Species of Ulmaceae on Limestone Mountains in the Eastern of Anhui Province |
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| Fu Songling.A Study on Physiological Characters of Species of Ulmaceae on Limestone Mountains in the Eastern of Anhui Province[J].Journal of Nanjing Forestry University(Natural Sciences ),1999,23(3):75-78. |
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| Authors: | Fu Songling |
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| Institution: | Fu Songling (Anhui Agricultural UniversityHefei230036) Zheng Xinglin (Guandian Forestry Farm of Anhui Province) |
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| Abstract: | This paper studied physiological and ecological characters of Ulmus chenmoui, U. gaussenii, Pteroceltis tatarinowii, Zelkova schneiderina and Celtis sinensis. Light compensations of them are 6.35,4.45,5.03,3,32 and 5.53W/m2 respectively. The water utilization efficiencies are 3.1610-2,2.9210-2,2.6510-2,2.4810-2 and 2.9810-2g/g(DW/H2O) and the water potentials at noon of May are -8.4,-7.2,-9.1,-8.0 dan -9.0 bar respectively. With high light compensation and water utilization efficiencies and low water potentials, they are adaptable to limestone babitat. |
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| Keywords: | Limestone mountain Ulmaceae Physiological and ecological character |
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