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| 贵州西部喀斯特石漠化地区退耕弃荒地土壤氮素变异特征 | |
| 引用本文： | 林昌虎,涂成龙,陆晓辉,林邵霞.贵州西部喀斯特石漠化地区退耕弃荒地土壤氮素变异特征[J].水土保持学报,2005,19(4):14-17,88. |
| 作者姓名： | 林昌虎 涂成龙 陆晓辉 林邵霞 |
| 作者单位： | 1. 贵州科学院,贵阳,550001 2. 贵州科学院,贵阳,550001;贵州大学,贵阳,550025 3. 贵州师范大学,贵阳,550001 4. 贵州大学,贵阳,550025 |
| 基金项目： | 贵州省科学基金项目(黔科合计(2004)3058号)，贵州科学院基金资助项目 |
| 摘 要： | 研究以贵州西部喀斯特石漠化地区退耕弃荒地土壤为研究对象,在保证自然因素相对一致的条件下,根据退耕年限的不同和有无梯化过程,采集土壤样品进行全氮及氮素形态的化学分析。结果表明,该区域土壤有机质、全氮及各形态氮素含量呈现先降后升的趋势。根据此结论,并结合该区域性水热同期的先天条件,认为在贵州西部喀斯特石漠化地区土壤氮素肥力的自然修复是存在可能的。 |
| 关 键 词： | 退耕弃荒地 全氮 无机氮 有机氮 变异特征 |
| 文章编号： | 1009-2242（2005）04-0014-04 |
| 收稿时间： | 2005-06-19 |
| 修稿时间： | 2005-06-19 |
Soil Nitrogen Variation Features of De-farming and Wasteland in Western Karst Desertification Region, Guizhou Province |
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| Lin ChangHu;Tu ChengLong;Liu XiaoHui;Lin ShaoXia.Soil Nitrogen Variation Features of De-farming and Wasteland in Western Karst Desertification Region, Guizhou Province[J].Journal of Soil and Water Conservation,2005,19(4):14-17,88. | |
| Authors: | Lin ChangHu;Tu ChengLong;Liu XiaoHui;Lin ShaoXia |
| Abstract: | According to similar natural condition and different years of de-farming, this research studied nitrogen variation features of the desertification soils of different de-farming and wasteland in the western Karst region, Guizhou province. The result shows that the content of soil organic matter,total nitrogen and different forms nitrogen decreased firstly, then increased by time pasted. Based on this conclusion, and effect of heat and water in this region, the paper deduced that it is possible to restore the nitrogen fertility under natural condition. |
| Keywords: | de-farming and wasteland total nitrogen inorganic matter organic matter variation features |
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