TANG Dao-feng,HE Kang-ning,ZHU Yan-yan.The Suitable Soil Moisture Condition for Several Common Arbor and Shrub in Datong,Qinghai Province[J].Research of Soil and Water Conservation,2007,14(03):306-308,311.
青海大通几种常见乔灌木最适宜生长的水分条件研究
- Title:
- The Suitable Soil Moisture Condition for Several Common Arbor and Shrub in Datong,Qinghai Province
- 分类号:
- S715;S152.7
- 摘要:
- 采用Li-6400便携式光合仪在模拟光强条件下，对不同水分处理的9种乔灌木进行观测.观测参数包括：净光合速率、气孔导度、蒸腾速率、细胞间隙CO2浓度等.并且运用SPSS数据处理软件进行分析.从而确定各林木光合生理参数与土壤含水量之间的关系，并在此基础上找出林木光合、水分利用效率与土壤含水量关系的最佳组合，以最少的耗水获得最大的生产效益，在青海大通林区进行水分管理，开展高效、经济型林业具有重要的理论意义.
- Abstract:
- With the aid of the Licor-6400 portable photosynthesis system,several kinds of trees under different soil water condition were measured under the simulated photosynthetic radiation.The quantitative relation contains photosynthetic rate,stomatic conductivity,intercellular CO2 concentration,transpiration rate and so on,and analysis data with SPSS.the relation between water utilization efficiency and soil water content is known,and based on this,the best condation among Pn,WUE and SWC is found,and the most product benefit under the lest water is obtained.It is the technological basis to construct the high efficiency and economic forest and manage water.
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备注/Memo
收稿日期:2006-6-14
基金项目:国家自然科学基金(30371172);教育部科学技术研究项目(重大10407)
作者简介:唐道锋(1981- )，硕士，主要研究方向：水土保持、林业生态工程建设;