| 樟子松在甘肃干旱区的适应性及发展潜力研究 |
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| 引用本文： | 王继和,满多清,刘虎俊.樟子松在甘肃干旱区的适应性及发展潜力研究[J].中国沙漠,1999,19(4):390-394. |
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| 作者姓名： | 王继和 满多清 刘虎俊 |
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| 作者单位： | 甘肃省治沙研究所, 甘肃武威 733000 |
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| 摘 要： | 通过对樟子松在甘肃干旱区的适应性进行研究分析得出:樟子松的耐旱性强于当地主要防护林树种二白杨和沙枣;也较常绿乡土树种侧柏、油松、刺柏、青海云杉适应性强,并表现出明显的生长优势。对樟子松的生长量、移栽造林技术、光合速率、蒸腾强度、水分利用效率、耐盐性、物候期等进行研究的结果表明:樟子松能适应甘肃干旱区气候、自然生态环境条件;同时长势也优于原产地,是优良的防风固沙造林树种,能抗病虫害、可作为用材林树种,改造当地"小老头树"防护林等,其发展潜力大,应大力发展。
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| 关 键 词： | 樟子松 甘肃干旱区 适应性 发展潜力 |
| 收稿时间： | 1998-12-11 |
| 修稿时间： | 1999-05-25 |
Adaptability and Developing Potential of Pinus sylvestris var. mongolica in Gansu Arid Area |
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| WANG Ji-he,MAN Duo-qing,LIU Hu-jun.Adaptability and Developing Potential of Pinus sylvestris var. mongolica in Gansu Arid Area[J].Journal of Desert Research,1999,19(4):390-394. |
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| Authors: | WANG Ji-he MAN Duo-qing LIU Hu-jun |
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| Institution: | Gansu Desert Control Research Institute, Wuwei 733000, China |
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| Abstract: | The results of studying the adaptability of Pinus sylvestris var. mongolica in Gansu arid area show that drought resistance of Pinus sylvestris is stronger than local shelter belt tree species-Populus gansuensis, Elaeagnus angustifolia, and also stronger than local evergreen tree-species-Platycladus orientalis L Franco, Picea crassifolia Kom., Pinus tabulaeformis Carr, and Juniperus formosana Hayata. Its survival rate and annual height growth is limited by local climate and natural geographic condition. Generally, in order to improve its survival rate of seedling afforestation, its root soil would be ball enough when seedlings are transplanted; and its annual height growth increases obviously after seedlings were transplanted for 5~6 years. In comparison, the growth of Pinus sylvestris is much better than the other 4 evrgreen tree species and the superiority is obvious with the area drought development. The growth of Pinus sylvestris in introduction areas-Hexi, Zhanggutai and original production area-Honghuaerji shows ZhanggutaiHexiHonghuaerji; the climatic drought in Gansu arid area is the key limited factor of its growth compared with Zhanggutai. Pinus sylvestris likes sunlight, it can grow in temperature range of -40℃~50℃; sunlight and heat resources are richer in Gansu arid area, it is beneficial to Pinus sylvestris's growth and development. The growth of Pinus sylvestris is influenced by different soil types and water conditions; afforestation on leveled sand soil (pH < 8.3) in irrigation condition(pH < 8.0) or underground water supplying has a better survival rate and growth. Most irrigation water quality and soil condition in Gansu arid area is favored for the growth. Pinus sylretris is also a better afforesting tree species of wind break and sand fixation viewed from stronger disease and worm resistance, bigger developing potential, so it should be developed in Gansu arid area. |
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| Keywords: | Pinus sylvestris \%var \%mongolica\% Gansu arid area adaptability developing potential |
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