Knowledge Resource Center for Ecological Environment in Arid Area
| 影响库布齐沙漠合作杨、沙柳造林成活率的因素分析 | |
| 其他题名 | Factor analysis of afforestation efficiencies of Populus opea and Salix psammophila in Hobq Desert, Inner Mongolia |
| 薛凤英; 高春明 | |
| ISSN | 1000-6060 |
| 出版年 | 2008 |
| 卷号 | 31期号:2页码:264-270 |
| 中文摘要 | 对库布齐沙漠的主要造林树种合作杨和沙柳的造林密度与气象因素对造林效果的影响进行的分析结果表明，造林密度对合作杨和沙柳的造林效果有明显的影响。对于合作杨而言，最佳的造林密度为2m*6m，这一栽植密度多年的成活率可达到90％以上，保存率达到89％以上，栽后第五年，树木净高生长量为2．03m。对于沙柳而言，最佳的造林密度应该选择1m*4m或2m*2m。分析显示，气象因子对造林效果的影响是通过综合作用体现出来的，第一综合因子主要包括年降水量、年均相对湿度、35月大风日数和年大风日数。其中，年降水量和相对湿度对合作杨和沙柳的造林成活率和保存率的影响为正向作用，35月大风日数和年大风日数作用相反。第二综合因子主要包括年均温、年降水量和68月降水量。其中，年降水量和68月降水量对合作杨和沙柳的造林效果的影响为正向作用，年均温的作用反之。 |
| 英文摘要 | The Hobq Desert is located at the arid-semiarid and agriculture-animal husbandry transitional zone in the northern China. The desert is the main source to influence Ordos City. The vegetation construction is of great importance for its economy and environment. Afforestation efficiencies of Populus opea and Salix psammophila,which include afforestation surviving and preserving rates under different afforestation densities and local meteorological factors, have been studied with the factor analysis in the Hobq Desert region based on afforestation experiment data of sixteen years. Results show that the afforestation densities of 1 m *4 m, 2 m *4 m, 2 m * 2m, 2 m*3 m, and 2 m * 6 m have significant impact on the afforestation efficiencies of P. opea and S. psammophila. Firstly, the best afforestation density for P. opea is 2 m * 6 m, its surviving and preserving rates in the annual average level reach 90% and 89% respectively and net height growth reach 2.03 m five years after planted. Secondly, the best afforestation densities for S. psammophila are 1 m * 4 m and 2 m * 2 m in the annual average level. In addition, the single factor correlation analysis shows that there is not significant relation between the afforestation efficiencies and the meteorological factors. However, further principal component analysis indicates that the effects of meteorological factors on afforestation process could play an integrated role in the afforestation process. The results indicate that first principal components are composed of annual precipitation, relative humidity, strong wind days of March to May, and annual strong wind days. Among these, the annual precipitation and relative humidity have positive impact on the afforestation efficiencies and the strong wind days of March to May and the annual strong wind days have the reverse influence. Second principal components are consisted of mean annual air temperature, annual precipitation, and precipitation of June to August. Among these, the annual precipitation and the precipitation of June to August have positive impact on the afforestation efficiencies and the mean annual air temperature has the reverse influenee. |
| 中文关键词 | 合作杨 ; 沙柳 ; 造林密度 ; 气象因子 ; 主成分分析 |
| 英文关键词 | Populus opea Salix Psammophila afforestation density meteorological factors Hobq Desert |
| 语种 | 中文 |
| 国家 | 中国 |
| 收录类别 | CSCD |
| WOS类目 | FORESTRY |
| WOS研究方向 | Forestry |
| CSCD记录号 | CSCD:3221638 |
| 资源类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/222269 |
| 作者单位 | 内蒙古鄂尔多斯市造林总场, 鄂尔多斯, 内蒙古 014300, 中国 |
| 推荐引用方式 GB/T 7714 | 薛凤英,高春明. 影响库布齐沙漠合作杨、沙柳造林成活率的因素分析[J],2008,31(2):264-270. |
| APA | 薛凤英,&高春明.(2008).影响库布齐沙漠合作杨、沙柳造林成活率的因素分析.,31(2),264-270. |
| MLA | 薛凤英,et al."影响库布齐沙漠合作杨、沙柳造林成活率的因素分析".31.2(2008):264-270. |
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