| 杨树混交模式养分变化及林木增长率的研究 |
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| 引用本文： | 孙翠玲,郭玉文,朱占学,佟超然,王珍,焦如珍.杨树混交模式养分变化及林木增长率的研究[J].林业科学研究,1997,10(2):164-169. |
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| 作者姓名： | 孙翠玲 郭玉文 朱占学 佟超然 王珍 焦如珍 |
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| 作者单位： | 中国林业科学研究院森林生态环境研究所，中国林业科学研究院林业研究所，河南省民权县林场，北京市大兴县林场 |
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| 基金项目： | 国家“八五”攻关项目“杉木、杨树维护地力措施研究”专题的部分内容 |
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| 摘 要： | 通过杨树与豆科乔、灌木树种混交以及轮作等生物措施，定量研究不同处理对土壤营养元素和林地生产力的影响，河南与北京的两地试验，采用统一的试验设计，５个处理，３次重复，试验林分别为３．２ｈｍ＾２和１．８ｈｍ＾２。
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| 关 键 词： | 杨树 混交模式 营养元素 生长 |
| 收稿时间： | 1996/10/28 0:00:00 |
A Study on Nutrient Dynamics and the Relative Increment Rate in Different Types of Poplar Intercropping |
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| Sun Cuiling,Guo Yuwen,Zhu Zhanxue,Tong Chaoran,Wang Zhen and Jiao Ruzhen.A Study on Nutrient Dynamics and the Relative Increment Rate in Different Types of Poplar Intercropping[J].Forest Research,1997,10(2):164-169. |
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| Authors: | Sun Cuiling Guo Yuwen Zhu Zhanxue Tong Chaoran Wang Zhen and Jiao Ruzhen |
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| Institution: | The Research Institute of Forest Ecology and Environment, CAF Beijing 100091;The Research Institute of Forest Ecology and Environment, CAF Beijing 100091;The Research Institute of Forestry, CAF;Mingquan County Forest Farm of Henan Province;The Research Institute of Forestry, CAF;Daxing County Forest Farm of Beijing |
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| Abstract: | Through the intercropping of poplar with legume,arbors and shrubs and the rotational cropping of poplar,the effects of different treatments on the soil nutrient elements and the forest land productivity were studied quantitatively.The experimental stands in Henan Province and Beijing cover an area of 3.2 hm 2 and 1.8 hm 2 respectively,where the same experimental design with five treatments and three replications were adopted.The results from 1992 to 1995 showed that the relative increment rates of height and diameter at breast height ( DBH ) were significantly different between treatments at 0.01,0.05 and 0.10 level.At the site in Beijing,the relative increment rates of DBH and height were significantly different between treatments at 0.05 level ( F =3.916) and at 0.10 level ( F=2.423 ) respectively,at the Minquan site in Henan Province,the relative increment rates of DBH and height were significantly different at 0.01 level ( F=28.769 ) and 0.05 level ( F=3.39 ).The soil nutrient elements of different types of mixed poplar stands varied regularly;poplar mixture and black locust can improve the soil fertility of the forest land;in the poplar continuous cropping forest land,all the amount of soil nutrient elements declined and the land productivity degranded significantly. |
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| Keywords: | type of poplar intercropping variation rate of nutrient element continuous cropping soil degradation |
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