| Dynamics of pH value and metal elements of rainfall within mixed forests in Japanese pine and cypress |
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| 引用本文： | 刘云国,曾光明,李欣. Dynamics of pH value and metal elements of rainfall within mixed forests in Japanese pine and cypress[J]. 中国有色金属学会会刊, 2002, 12(3): 549-554 |
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| 作者姓名： | 刘云国 曾光明 李欣 |
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| 作者单位： | [1]DepartmentofEnvironmentalScience＆Engineering,HunanUniversity,Changsha410082,China [2]DepartmentofAgriculture,KyotoUniversity,Kyoto,Japan |
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| 基金项目： | 国家自然科学基金，高等学校优秀青年教师教学科研奖励计划 |
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| 摘 要： | 1 ＩＮＴＲＯＤＵＣＴＩＯＮＴｈｅｃｈａｌｌｅｎｇｅｏｆｆｏｒｅｓｔｅｃｏｓｙｓｔｅｍｓａｓｓｏｃｉａｔｅｄｗｉｔｈｔｈｅｐｒｉｎｃｉｐｌｅｏｆｓｕｓｔａｉｎａｂｌｅｄｅｖｅｌｏｐｍｅｎｔｈａｓｂｅｅｎｏｆｃｏｎｃｅｒｎｔｏｍａｎｙｒｅｓｅａｒｃｈｅｒｓａ
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| 关 键 词： | 金属元素 松树 柏树 混和林 降水 pH值 |
Dynamics of pH value and metal elements of rainfall within mixed forests in Japanese pine and cypress |
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| Y.Katayama,K.Nishimura,A.Nakanishi,H.Okazaki,T.Anzai,G.Iwazubo. Dynamics of pH value and metal elements of rainfall within mixed forests in Japanese pine and cypress[J]. Transactions of Nonferrous Metals Society of China, 2002, 12(3): 549-554 |
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| Authors: | Y.Katayama K.Nishimura A.Nakanishi H.Okazaki T.Anzai G.Iwazubo |
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| Abstract: | The dynamics of forest ecology was studied. The pH values, electrical conductivities and concentrations of metal and nonmetal elements in rainfall, stream, through fall and stream flow were investigated based on the data collected from a small mixed forest watershed of Pinus densifora sieb et Zucc, Pinus thunbergii Parh and Chamaecypari sobtusa sieb et Zucc ex Endl at Kiryu nature reserve and a small barren watershed at Jakujo nature reserve, Ootsu, Shiga, Japan. The results show that both the mixed forest ecosystems of pine and cypress and the soil draw from granite affect the pH values and metal elements of rainfall. And the contribution of the mixed forest is greater than that of the barren. Moreover, the amount of input of most elements is larger than that of output in the ecosystem, which shows the elemental accumulation in the related forest ecosystem. |
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| Keywords: | mixed forest small watershed small barren watershed pH value metal elements |
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