| 杨(槐)根系淋洗物对槐(杨)根际微区养分状况的影响 |
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| 引用本文： | 蒋三乃,翟明普.杨(槐)根系淋洗物对槐(杨)根际微区养分状况的影响[J].西南林学院学报,2005,25(4):75-79. |
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| 作者姓名： | 蒋三乃 翟明普 |
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| 作者单位： | 1. 国家林业局造林司,北京,100714
2. 北京林业大学,资源与环境学院,北京,100083 |
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| 基金项目： | 高等学校博士学科点专项科研基金资助项目(97002209)，国家自然科学基金资助项目(39870643) |
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| 摘 要： | 采用根垫法分析杨树(刺槐)根系淋洗物对刺槐(杨树)根际微区养分迁移特性的影响,结果表明:浇刺槐根系淋洗物能提高杨树根际微区的NO3--N和NH4 -N水平,降低其N素养分亏缺率,在一定程度上缓解杨树根际微区N素缺乏状况;浇灌杨树根系淋洗物能提高刺槐根际微区的P素(尤其是非闭蓄态无机P)水平,降低其P素亏缺百分率,但效果不明显.
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| 关 键 词： | 根垫法 根系淋洗物 根际微区 养分亏缺 杨树 刺槐 |
| 文章编号： | 1003-7179（2005）04-0075-05 |
| 收稿时间： | 2005-09-18 |
| 修稿时间： | 2005-09-18 |
Influence of Root Drenched Solution of Populus/Robinia pseudoacacia on Rhizosphere Nutrient Status of Robinia pseudoacacia/Populus |
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| JIANG San-nai,ZHAI Ming-pu.Influence of Root Drenched Solution of Populus/Robinia pseudoacacia on Rhizosphere Nutrient Status of Robinia pseudoacacia/Populus[J].Journal of Southwest Forestry College,2005,25(4):75-79. |
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| Authors: | JIANG San-nai ZHAI Ming-pu |
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| Institution: | 1. Silviculture Department, State Forestry Administration, Beijing 100714, China; 2. College of Resources and Environment, Beijing Forestry University, Beijing 100083, China |
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| Abstract: | The influence of the root drenched solution of Populus/Robinia pseudoacacia tree species on properties of rhizosphere nutrient transportation of Robinia pseudoacacia/Populus tree species was analyzed by means of root study container technique.The results showed that the concentration level of NO~-_3-N and NH~ _4-N in the rhizosphere of Populus tree species increased by watering the Populus root system with root-drenched solution of black locust tree species and the N nutrient deficit in the rhizosphere scale of poplars was somewhat reduced.Whereas,the P nutrient(especially available inorganic P) level in the rhizosphere of black locust plants was improved a little by watering the plants with root drenched solution of Populus plants,which was good to reduce P deficit for black locust trees,though the effect was not significant. |
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| Keywords: | root study container technique drenched solution of root system rhizosphere nutrient deficit Populus Robinia pseudoacacia |
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