中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > 半干旱区环境因子对柠条灌木林结构的影响 水土保持通报 2005,25 (3) 10-14
Position: Home > Articles > Influence of Environmental Factors on Formation of Morphological Structure of Caragana Korshiskii. in Semi-arid Region Bulletin of Soil and Water Conservation 2005,25 (3) 10-14

半干旱区环境因子对柠条灌木林结构的影响

作  者：
赵艳云;程积民;王延平;万惠娥;胡相明
单  位：
山东农业大学;中国科学院水利部水土保持研究所
关键词：
柠条;年降雨量;形态结构;坡位;整地方式
摘  要：
以半干旱区宁夏固原17a生柠条灌木林为研究对象,分析了不同地形、整地方式及降雨量对柠条生长形态的影响,并对影响柠条单株形态组成的指标进行了主成分分析。研究结果表明:(1)不同坡位对柠条的株高、根深、生物量影响显著,而对柠条的分枝数没有明显影响;不同整地方式对柠条的株高、分枝、根深及单株生物量均影响显著。(2)降雨量对柠条形态组成影响深刻,柠条的株高、分枝、单株生物量与年度累积降雨量之间呈"S"型曲线,说明柠条形态建成与降雨量有极大的相关性;根系的生长与降雨量之间则呈指数规律增长。(3)柠条各生长指标间存在着紧密的联系。株高、分枝、株生物量是描述柠条地上部形态结构特征的指标组合;根深则是描述柠条地下形态结构的指标。
译  名：
Influence of Environmental Factors on Formation of Morphological Structure of Caragana Korshiskii. in Semi-arid Region
作  者：
ZHAO Yan-yun~(1,3), CHENG Ji-min~1, WANG Yan-ping~2, EAN Hui-e~1, HU Xiang-ming~(1,3)(1.Institute of Soil and Water Conservation, CAS, Yangling District 712100, Shaanxi Province, China;2.Shandong Agriculture University, Tai'an 271000, Shandong Province, China; 3.Post-gratuate School of Chinese Academy of Sciences, Beijing 100099, China)
关键词：
Caragana korshiskii.; annual accumulated rainfall; morphological structure; topography; preparation modes;
摘  要：
Using the Caragana korshiskii. shrubbery of 17 years in Shanghuang as the studied object, this article analyzed the effect of different topography, site preparation modes and annual accumulated rainfall to the formation of morphological structure of the Caragana korshiskii. shrubbery. The height, the root depth, the number of branches and the biomass of Caragana korshiskii. shrubbery in different topography and preparation modes were studied. By using the principal component analysis, the results suggested: (1) The effect of different topography was significant to the tree height, root depth and biomass, but the number of branches was not. The effect of different site preparation was also significant to all biologic indices. (2) The effect of annual accumulated rainfall on the formation of morphological structure of Caragana korshiskii. shrubbery was high. By analyzing the regression about tree height, root depth, number of branches and biomass of Caragana korshiskii. with total precipitation, the curve of tree height , the number of branches and biomass were showed as "S" pattern, which suggested the correlation between the annual accumulated rainfall and the indices were very large.The relationship between root depth and the annual accumulated rainfall was the shape of exponential curve. (3) All growth indices have close relation. Tree height, branches and biomass were aboveground combined indices to the descriptive of plant and the root depth was the under-ground one.

相似文章

导出引用
计量
文章访问数: 6
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46