| 封育对荒漠退化草地土壤主要养分的影响初探 |
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| 引用本文： | 范燕敏,武红旗,靳瑰丽,古丽拜克热木,努尔比牙.封育对荒漠退化草地土壤主要养分的影响初探[J].草业科学,2011,28(8):1416-1419. |
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| 作者姓名： | 范燕敏 武红旗 靳瑰丽 古丽拜克热木 努尔比牙 |
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| 作者单位： | 新疆农业大学草业与环境科学学院新疆草地资源与生态重点实验室,新疆乌鲁木齐,830052 |
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| 基金项目： | 新疆草地资源与生态重点实验室开放项目(XJDX0209-2007-03)、(XJDX0209-2009-03); 自治区土壤学重点学科基金 |
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| 摘 要： | 以新疆天山北坡荒漠草地为研究对象，通过对两年围栏内外的0~20 cm土壤养分进行对比分析，探讨短期围栏封育对土壤的影响。结果表明，退化草地围栏后土壤有效磷含量降低；中度、重度退化草地土壤表层碱解氮含量降低，极度退化草地土壤碱解氮含量升高；中度、极度退化草地土壤有机质含量升高。由此可以看出，当地严酷的自然条件和草地退化程度的不同，使得短期围栏封育对土壤养分恢复的效果除有效磷变化一致降低外，有机质、碱解氮、速效钾变化不一致，差异不明显。因此，只有通过长期监测，才能对围栏封育的效果做出客观的评价。
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| 关 键 词： | 荒漠草地 退化 封育 土壤养分 |
A tentative study of influences of fencing on soil nutrients of degradation desert grassland |
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| FAN Yan-min,WU Hong-qi,JIN Gui-li,Gulibaikeremu,Nuerbiya.A tentative study of influences of fencing on soil nutrients of degradation desert grassland[J].Pratacultural Science,2011,28(8):1416-1419. |
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| Authors: | FAN Yan-min WU Hong-qi JIN Gui-li Gulibaikeremu Nuerbiya |
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| Institution: | FAN Yan-min,WU Hong-qi,JIN Gui-li,Gulibaikeremu,Nuerbiya(College of Grassland and Environment Science,Xinjiang Agricultural University,Xinjiang Key Laboratory of Grassland Resource and Ecology,Xinjiang Urumqi 830052,China) |
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| Abstract: | The influence of short-term fencing on soil nutrients was discussed by comparatively analyzing the change of nutrients in the 0-20 cm soil layer inside and outside of fences at the degenerated desert grassland of Xinjiang.The results showed that the soil Olsen-P content was depressed inside fences.The topsoil available N contents of fenced moderate degraded and fenced severe degraded grassland were depressed;while that of fenced extreme degraded grassland was increased.After fencing,soil organic matter cont... |
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| Keywords: | desert grassland degradation fencing soil nutrients |
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