[1]冯顺煜,刘增文*,段而军,等.陕北半湿润黄土丘陵区人工纯林土壤中微量元素含量及其极化现状陕北半湿润黄土丘陵区人工纯林土壤中微量元素含量及其极化现状[J].西北林学院学报,2009,24(02):32-36.
 FENG Shun yu,LIU Zeng wen*,DUAN Er jun,et al.Contents of Traceelements and Polarizabilities of the Soil of Manmade Pure Forest Soil Semihumid Loessial Hilly Area, Northern Shaanxi[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2009,24(02):32-36.
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陕北半湿润黄土丘陵区人工纯林土壤中微量元素含量及其极化现状陕北半湿润黄土丘陵区人工纯林土壤中微量元素含量及其极化现状()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第24卷
期数:
2009年02期
页码:
32-36
栏目:
出版日期:
2009-03-30

文章信息/Info

Title:
Contents of Traceelements and Polarizabilities of the Soil of Manmade Pure Forest Soil Semihumid Loessial Hilly Area, Northern Shaanxi
作者:
冯顺煜 刘增文* 段而军 刘卓玛姐 刘兆民
(西北农林科技大学 资源环境学院, 陕西 杨陵 712100)
Author(s):
FENG Shunyu LIU Zengwen* DUAN Erjun LIUZHUO Majie LIU Zhaomin
(College of Resource and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China)
关键词:
人工纯林微量元素极化平衡态
Keywords:
manmade pure forest traceelement polarization equilibrium state
分类号:
S718.551.2
文献标志码:
A
摘要:
研究了陕北半湿润黄土丘陵区人工纯林土壤中微量元素含量及其极化现状。【方法】在黄陵地区选择具有代表性的油松、侧柏、刺槐和辽东栎等针、阔人工纯林及其混交林,采用野外抽样调查和室内分析测定的方法,测定了该地区人工纯林土壤微量元素含量及其极化现状。【结果】(1)在表层土壤(0-20 cm),落叶松林最有利于4种土壤有效性微量元素的积累,刺槐林最不利于有效微量元素的积累;另外,油松+辽东栎混交林最有利于有效微量元素的积累;(2)土壤有效微量元素含量随土层的增加有增加,也有降低,随土层的变化呈现非规律性的变化;(3)无论针叶林还是阔叶林,对土壤有效态微量元素的极化大多数都是负向的,即远离平衡态向减少的方向发展,强度属于强(IV级)或者极强(V级)。【结论】不同树种纯林对土壤中有效态的微量元素的分布有着重要的作用,而这种作用可能是有益的,也有可能是无益的,为造林选材提供了一定的科学根据。
Abstract:
To study the contents and the polarization of traceelements in the soil of manmade pure forest in semihumid loess hilly area, 【Method】 To measure trace elements in soils of Pinus tabulaeformis, Platycladus orientalis, Robinia pseudoacacia and Quercus liaoturgersis etc, in Huangling area. 【Result】(1)In the soil depth of 0-20 cm, Larix principisrupprechtii and P. totulaefomis+Q.liaoturgersis were favorable for the accumulation of 4 available traceelements, and the black locust was not for that; (2)With the increase of soil depth, the content of available traceelements exhibited no clear regularity: both increasing or decreasing patterns were found. (3)Regardless of needle forest or broadleaved forest, the contents of traceelements decreased:far away from equilibrium state. Most of the polarizations were in level IV or level V.【Conclusion】Pure forests importantly affect the distribution of the available traceelements in soil. No matter the effects were good or bad.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:20080806修回日期:20081009基金项目: 西北农林科技大学人才计划项目(2005);国家自然科学基金项目 (30471376)。作者简介:冯顺煜,男,硕士研究生,研究方向:生态环境工程。Email: chnprince@163.com *通讯作者:刘增文,男,博士,副教授,主要从事森林生态学研究。 Email: zengwenliu2003@yahoo.com.cn
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