摘要
为了观测欧美107杨与中林46杨对生活污水的响应,采用不同水力负荷(0、3、6、9、12、15 cm·周??),在杨树人工林林地进行了污水生态处理试验。结果表明:污水处理增加了欧美107杨的叶长、落叶量与生长量,降低了欧美107杨的叶不对称性;污水处理使中林46杨叶长变短,叶不对称性增加,生长量与落叶量降低。在较低水力负荷时,两种杨树无性系各器官中的氮、磷、钾钠积累量增加,在6—12 cm·周??水力负荷时达到最大值,然后又有所下降,欧美107杨各器官中氮、磷、钠积累量高于中林46杨。欧美107杨比中林46杨更适宜于作为生活污水处理的植物材料。
A wastewater eco-treatment experiment with different hydraulic loads（0, 3, 6, 9, 12, 15 cm per week） was conducted in poplar woodland to study the responses of Euramerican 107 and Zhonglin 46 to domestic wastewater. Treating with wastewater increased the leaf length, litter fall and growth, but reduced leaf fluctuating asymmetry of poplar Euramerican 107. It reduced the leaf length, litter fall and growth, but increased leaf fluctuating asymmetry of poplar Zhonglin 46. The accumulation of N, P, K and Na in poplar organs increased with an increased hydraulic load, with a peak turning up at the hydraulic loading of 6-12 cm per week. The accumulation of N, P, K and Na in poplar Euramerican 107 organs was higher than that in poplar Zhonglin 46 organs. In conclusion, Euramerican 107 is more suitable for wastewater treatment than poplar Zhonglin 46.
出处
《生态科学》
CSCD
北大核心
2014年第5期893-898,共6页
Ecological Science
基金
郑州市重点科技攻关项目(20130244)
河南省公益科研院所预研项目计划(0921038101)
国家林业公益性行业科研专项(200904024)
关键词
污水生态处理
叶长与叶不对称性
落叶量
杨树生长量
养分与钠含量
wastewater eco-treatment
leaf length and fluctuating asymmetry
litter fall
poplar biomass growth
nutrient and Na content
