| 围栏对新疆山区草地土壤有机碳和氮的影响 |
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| 引用本文： | 董自红,蒋平安,贾宏涛,李慧,程路明.围栏对新疆山区草地土壤有机碳和氮的影响[J].新疆农业职业技术学院学报,2006(3). |
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| 作者姓名： | 董自红 蒋平安 贾宏涛 李慧 程路明 |
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| 作者单位： | 新疆农业职业技术学院园林科技分院，新疆农业大学资源环境学院，新疆农业大学资源环境学院，新疆农业大学资源环境学院，新疆农业大学资源环境学院 昌吉831100 新疆农业大学资源环境学院，乌鲁木齐830052，乌鲁木齐830052，乌鲁木齐830052，乌鲁木齐830052，乌鲁木齐830052 |
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| 摘 要： | 本文通过对新疆典型山区草地——高寒草甸、亚高山草甸和山地草原的野外实地监测,在草原围栏内外植物群落生物量、土壤温度、土壤水分和土壤有机碳、氮特征研究结果比较基础上,讨论了围栏对天然草地土壤有机碳、氮的影响;围栏后草地生物量和植被覆盖度的提高,使土壤含水量显著增加,土壤温度明显减小,有利于土壤有机碳、氮的恢复,但出于土壤有机碳、氮的积累相对较慢,大部分又积存在土壤表层,需进一步深入研究围封的尺度。
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| 关 键 词： | 土壤有机碳和氮 围栏 草地 |
The Influences of Fencing on Soil Organic Carbon and Nitrogen of the Typical Mountainous Lawn in Xinjiang |
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| DONG ZiHong.The Influences of Fencing on Soil Organic Carbon and Nitrogen of the Typical Mountainous Lawn in Xinjiang[J].Journal of Xinjiang Agricultural Vocational Technical College,2006(3). |
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| Authors: | DONG ZiHong |
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| Institution: | DONG ZiHong~ |
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| Abstract: | Through on-the-spot field monitoring the typical mountainous lawn in xinjiang:Down- land,Subalpine meadow and Alpine meadow,to compare plant communities'biomass,soil temperature, soil moisture outside and inside fences,then discuss the impact of fencing on the soil organic carbon and the nitrogen of the nature grassland:Under fencing conditions,the biomass and coverage of vegetation were increased to make soil moisture increasing,hut significantly decreased soil temperature,restoring the soil organic carbon and the nitrogen of further development,but accumulation of the soil organic carbon and the nitrogen is slower and a large part of them were immobilized on the soil surface layer. Further research on time scale for fencing is need. |
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| Keywords: | Soil Organic Carbon and Nitrogen Fencing Grassland |
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