| 第二代杉木幼林中降雨对养分的淋溶作用 |
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| 引用本文： | 田大伦 杨晚华. 第二代杉木幼林中降雨对养分的淋溶作用[J]. 湖北民族学院学报(自然科学版), 1999, 17(1): 1-5 |
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| 作者姓名： | 田大伦 杨晚华 |
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| 作者单位： | 中南林学院生态系!株洲412006 |
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| 基金项目： | 国家林业局重点科研项目 |
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| 摘 要： | 根据会同生态站３年定位观测数据，对第二代杉木幼柯降雨对归的淋溶作用进行了研究。结果表明，１１种元素在林外降雨、穿透水和树干流中含量有很大的差异，其浓度大小总趋势为树干流〉穿透水〉林外降雨，并存在季节性变化。降雨对杉木幼林的养分淋溶量大小顺序为Ｃａ〉Ｍｇ〉Ｋ〉Ｆｅ〉ＮＨ－Ｎ〉Ｍｎ〉ＮＯ３－Ｎ〉Ｐ〉Ｃｕ〉Ｏｒｇ－Ｎ〉Ｚｎ。
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| 关 键 词： | 第二代杉木幼林 养分 淋溶 杉木林 |
A STUDY ON NUTRIENT LEACHING IN THE SECONDARY GENERATION YOUNG CHINESE FIR PLANTATION |
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| Tian Dalun Yang Wanhua Fang Haibo. A STUDY ON NUTRIENT LEACHING IN THE SECONDARY GENERATION YOUNG CHINESE FIR PLANTATION[J]. Journal of Hubei Institute for Nationalities(Natural Sciences), 1999, 17(1): 1-5 |
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| Authors: | Tian Dalun Yang Wanhua Fang Haibo |
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| Abstract: | Based on three years data observed in Huitong Ecological Station ,nutrient leachig in the secondary generation young Chinese fir plantation was studied .The results showed :nutrient contents of 11 elements in rainfall,throughfall and stemflow varied greatly ,their concentrations changed as the seasons changed,and the general order was stemfall>throughfall>rainfall.The order of nutrient amounts,leaching from the crown of the young stand by rainfall,was Ca>Mg>K>Fe>NH + 4-N>Mn>NO - 3-N>P>Org-N>Mn. |
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| Keywords: | Secondary generation young Chinese fir stand rainfall nutrients leaching |
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