| 樟树人工林生态系统的水分生态效应 |
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| 引用本文： | 陈书军,田大伦,闫文德,康文星.樟树人工林生态系统的水分生态效应[J].水土保持学报,2006,20(1):10-14. |
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| 作者姓名： | 陈书军 田大伦 闫文德 康文星 |
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| 作者单位： | 1. 西北农林科技大学,林学院,陕西,杨陵,712100
2. 中南林业科技大学,生态研究室,湖南,长沙,410004 |
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| 基金项目： | 中国科学院资助项目;科技部科技基础条件平台建设计划;林业部科研项目;国家野外台站科研项目 |
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| 摘 要： | 对樟树人工林生态系统的大气降水、树干茎流、穿透水、林内地表径流、地下径流中N、P、SiO2、K、Ca、Mg、Cu、Fe、Zn、Mn共1O种养分元素含量进行了测定。结果表明：不同月份大气降水养分元素含量不同，各元素各月平均含量按大小排序为Ca〉SiO2〉Zn〉NH4-N〉K〉NO3-N〉Fe〉Mg〉Mn〉P〉Cu。大气降水经过林冠层后，树干茎流、林内穿透水中各养分元素含量变化基本一致，均表现季节动态变化．大多数元素含量增加。树干茎流中各元素含量按大小排序为K〉Ca〉NH4-N〉SiO2〉Mg〉NO3-N〉Zn〉Mn〉Fe〉P〉Cu；林内穿透水中各元素含量按大小排序为Ca〉K〉Zn〉SiO2〉NH4-N〉NO3-N〉Mg〉Mn〉Fe〉P〉Cu。树干茎流中SiO2、Fe、Zn，穿透水中Fe为负淋溶．其余各元素浓度有所增加，在这2项中，除NH4-N、K外，树干茎流中NO3-N、P、SiO2、Ca、Cu、Fe、Zn、Mn养分元素的富集作用均小于穿透水。
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| 关 键 词： | 樟树人工林 降水化学 冠层淋溶 养分含量 |
| 文章编号： | 1009-2242（2006）01-0010-05 |
| 收稿时间： | 2005-07-21 |
| 修稿时间： | 2005-07-21 |
Ecohydrological Effect of Cinnamomum camphor Plantation |
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| CHEN Shu-jun,TIAN Da-lun,YAN Wen-de,KANG Wen-xing.Ecohydrological Effect of Cinnamomum camphor Plantation[J].Journal of Soil and Water Conservation,2006,20(1):10-14. |
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| Authors: | CHEN Shu-jun TIAN Da-lun YAN Wen-de KANG Wen-xing |
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| Abstract: | The concentrations of 10 nutrient elements(N,P,SiO_2,K,Ca,Mg,Cu,Fe,Zn,Mn)in rainfall,throughfall,stemflow,surface runoff of inside and underground flow were measured in Cinnamomum camphor plantation.The results showed that concentrations of the nutrients in the rainfall varied according to month.The concentration sequence of the nutrient elements in precipitation gone as follows:Ca>SiO_2>Zn>NH_4-N>K>NO_3-N>Fe>Mg>Mn>P>Cu.The concentrations of the nutrients in stemflow,throughfall also varied in same way and change seasonally,most of the nutrient elements concentration were increased.The sequence of the nutrient elements contained in stemflow,throughfall were K>Ca>NH_4-N>SiO_2>Mg>NO_3-N>Zn>Mn>Fe>P>Cu;Ca>K>Zn>SiO_2>NH_4-N>NO_3-N>Mg>Mn>Fe>P>Cu.The concentrations of SiO_2,Fe,Zn in the stemflow,Fe in the throughfall were lower than those in the rainfall,while the concentrations of other elements are higher.Except to NH_4-N,K,a lower nutrients enrichment of NO_3-N,P,SiO_2,Ca,Cu,Fe,Zn,Mn in the stemflow was identified in the two items. |
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| Keywords: | Cinnamomum camphor plantation precipitation chemistry canopy leaching nutrient concentration |
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