| 内蒙古皇甫川流域凋落物分解过程中营养元素的变化特征 |
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| 引用本文： | 邵玉琴,赵吉,杨劼.内蒙古皇甫川流域凋落物分解过程中营养元素的变化特征[J].水土保持学报,2004,18(3):81-84. |
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| 作者姓名： | 邵玉琴 赵吉 杨劼 |
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| 作者单位： | 内蒙古大学,生命科学学院,内蒙古,呼和浩特,010021;内蒙古草地生态学重点实验室--省部共建国家重点实验室培育基地,内蒙古,呼和浩特,010021 |
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| 基金项目： | 国家自然科学基金(30060018), 内蒙古自然科学基金(20010905-01) 资助项目 |
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| 摘 要： | 在内蒙古皇甫川流域,利用凋落物样袋分解法对不同植被类型凋落物分解过程中营养元素的变化特征进行了研究。结果表明:在杨树叶、油松针叶和禾草3种植被凋落物分解过程中,营养元素随凋落物失重率的增高而降低,其中一部分营养元素回归土壤后,使凋落物样袋下相对应土层的营养元素含量提高;凋落物分解对恢复、补充和提高土壤肥力,防止水土流失,具有重要的实际意义。
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| 关 键 词： | 皇甫川流域 凋落物分解 营养元素 |
| 文章编号： | 1009-2242(2004)03-0081-04 |
Studies on Decomposing of Litters and Characteristic of Nutritious Elements in Inner Mongolia Huangfuchuan Watershed |
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| SHAO Yu-qin,ZHAO Ji,YANG Jie tory of Inner Mongolia Grassland Ecology,Huhhot.Studies on Decomposing of Litters and Characteristic of Nutritious Elements in Inner Mongolia Huangfuchuan Watershed[J].Journal of Soil and Water Conservation,2004,18(3):81-84. |
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| Authors: | SHAO Yu-qin ZHAO Ji YANG Jie tory of Inner Mongolia Grassland Ecology Huhhot |
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| Institution: | SHAO Yu-qin,ZHAO Ji,YANG Jie tory of Inner Mongolia Grassland Ecology,Huhhot 010021) |
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| Abstract: | Studies on decomposing of litters and characteristic of nutritious elements in different were carried out in Inner Mongolia Huangfuchuan Watershed. The results showed that the nutritious elements in Populus simonii, Pinus tabulaeform leaf and Herbage decreased accompanied with the rising of weight loss rate. A fraction of litters being returned to the soil, led to the increase of nutritious elements in the corresponding soil horizon. The decomposing of litters play an important role in the respect of recovering, supplement and improvement of soil fertility. |
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| Keywords: | Huangfuchuan watershed decomposition process of the litters nutritious element |
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