| 毛果苔草湿地开垦后土壤中主要营养元素垂直分异 |
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| 引用本文： | 高俊琴,吕宪国.毛果苔草湿地开垦后土壤中主要营养元素垂直分异[J].水土保持通报,2002,22(3):32-34. |
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| 作者姓名： | 高俊琴 吕宪国 |
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| 作者单位： | 中国科学院,长春地理研究所,吉林,长春,130021 |
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| 基金项目： | 中国科学院知识创新工程项目(KZCX2-302). |
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| 摘 要： | 以三江平原毛果苔草湿地及其开垦后的农田为研究对象 ,探讨了湿地开垦前后土壤中主要营养元素含量差异及垂直分异。结果表明 ,毛果苔草湿地土壤中主要营养元素含量要远高于农田土壤中营养元素含量 (土壤表层 K元素除外 ) ,其中 ,全 N含量相差 2 0多倍 ;毛果苔草湿地土壤中主要营养元素的垂直分异显著 ,都在 4 0 %以上 ,其中全 N含量的变异系数最高 ,达到 81.32 % ,而农田土壤中主要营养元素的垂直分异不太显著 ,都在 2 4 %以下 ,主要受水分条件和有机质的含量控制
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| 关 键 词： | 毛果苔草湿地 农田土壤 主要营养元素 垂直分异 |
| 文章编号： | 1000-288X(2002)03-0032-03 |
| 收稿时间： | 2002/3/26 0:00:00 |
| 修稿时间： | 2002年3月26日 |
Vertical Variability of Major Nutrition Elements in Carex Lasiocarpa Wetland Soil and Farmland Soil |
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| GAO Jun qin and LU Xian guo.Vertical Variability of Major Nutrition Elements in Carex Lasiocarpa Wetland Soil and Farmland Soil[J].Bulletin of Soil and Water Conservation,2002,22(3):32-34. |
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| Authors: | GAO Jun qin and LU Xian guo |
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| Institution: | Changchun Institute of Geography, Chinese Academy of Sciences, Changchun 130021, China;Changchun Institute of Geography, Chinese Academy of Sciences, Changchun 130021, China |
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| Abstract: | The difference and vertical variability of the major nutrition elements contents in Carex lasiocarpa wet land soil and farml and soil are studied. The results show that the major nutrition elements contents inCarex lasiocarpa wet land soil are much more than those in farmland soil (except for to talK content of surface layer),in which the contents of total P and total N in Carex lasiocarpa wet land soil are twenty more than those in farmland soil. The vartical variability of Carex lasiocarpa wetland soilis no table, more than 40% , in which the variabili
ty coef ficient of total N is highest, reaching 81.32% . But the verticality variability of farmland soilis not notable, less than 24% , mostly due to the water condition and the organic matter content. |
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| Keywords: | Carex lasiocarpa wetland farmland soil the major nutrition elements vertical variability |
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