| 不同种类中国杉对土壤养分状况的影响 |
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| 作者姓名： | YU Yuan-Chun ZHANG Huan-Chao |
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| 作者单位： | NanjingForestryUniversity,Nanjing210037,China |
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| 基金项目： | *1Project supported by the National Natural Science Foundation of China. |
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| 摘 要： | The effects of different types of Chinese fir stand,including those with varous composition (pure and mixed),in various cropping systems (first and continuous cropping system)and at different ages,on the nutrient status of soils the hilly regions of southern Anhui Province were studied by means of ecological sequential comparison on the basis of similar climate and soil type.The work was carried out in the Xiaoxi Forest Farm of Jingxian County and the Caijiaqiao Forest Farm of Jingde Coundy,where the soil is parayellow soil derived from phyllite and sandstone,The results revealed that with the increase of age,Chinese fir pure stand could accumulate organic matter and nitrogen in the soil but it resulted in decreasing of soil pH and base ions(especially Ca^2 ) compared to its mixed stand with broad-leaf trees such as Chinese sassafras,In order to improve the soil fertility,It would be better to mix Chinese fir with broad-leaf trees when afforestation In the management of Chinese fir pure stand,base compounds and phosphates should be added to the soil for mintaining soil fertility and raising and raising forest productivity.
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| 关 键 词： | 杉木 造林模式 林分 林地类型 土壤营养状况 |
Effects of different types of Chinese fir stands on nutrient status of soils |
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| YU Yuan-Chun,ZHANG Huan-Chao.Effects of different types of Chinese fir stands on nutrient status of soils[J].Pedosphere,1995,5(1):45-55. |
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| Authors: | YU Yuan-Chun and ZHANG Huan-Chao |
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| Institution: | NanjingForestryUniversity,Nanjing210037,China |
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| Abstract: | The effects of different types of Chinese fir stand,including those with varous composition (pure and mixed),in various cropping systems (first and continuous cropping system)and at different ages,on the nutrient status of soils the hilly regions of southern Anhui Province were studied by means of ecological sequential comparison on the basis of similar climate and soil type.The work was carried out in the Xiaoxi Forest Farm of Jingxian County and the Caijiaqiao Forest Farm of Jingde Coundy,where the soil is parayellow soil derived from phyllite and sandstone,The results revealed that with the increase of age,Chinese fir pure stand could accumulate organic matter and nitrogen in the soil but it resulted in decreasing of soil pH and base ions(especially Ca^2 ) compared to its mixed stand with broad-leaf trees such as Chinese sassafras,In order to improve the soil fertility,It would be better to mix Chinese fir with broad-leaf trees when afforestation In the management of Chinese fir pure stand,base compounds and phosphates should be added to the soil for mintaining soil fertility and raising and raising forest productivity. |
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| Keywords: | broad-leaf tree Chinese fir mixed stand soil nutrient status |
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