| 宁夏环香山地区压砂地土壤肥力特征分析 |
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| 引用本文： | 王占军,蒋齐,何建龙,马琨,胡景田.宁夏环香山地区压砂地土壤肥力特征分析[J].水土保持学报,2010,24(2). |
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| 作者姓名： | 王占军 蒋齐 何建龙 马琨 胡景田 |
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| 作者单位： | 1. 宁夏农林科学院,荒漠化治理研究所,银川,750002
2. 宁夏大学,农学院,银川,750021 |
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| 基金项目： | 国家“十一五”科技支撑计划项目(2007BAD54B05); 宁夏自然基金项目(NZ0856) |
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| 摘 要： | 以宁夏环香山地区农田压砂地为研究对象,对压砂不同种植年限(CK,1a,3a,5a,15a,25a)下的土壤肥力及其相关因子进行了研究。结果表明:农田压砂后能显著提高土壤贮水量,压砂不同种植年限下的土壤贮水量分别比农田CK提高了68.5%,50.12%,40.42%,60.03%,44.39%。受季节降雨的影响,压砂不同种植年限土壤贮水量的季节变化趋势相一致。农田压砂种植初期(1～5a)显著降低了pH值,随着种植年限的增加PH值含量基本呈增加趋势。农田压砂后明显降低了土壤全氮、全磷、有机质、碱解氮、速磷、速钾的含量,且随着种植年限的增加呈逐年下降的趋势。随着种植年限的增加西瓜产量呈明显下降趋势,农田压砂种植5～8a,10a,15a,20a分别比压砂种植1～3a产量下降了33.33%,38.89%,55.56%,71.11%。
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| 关 键 词： | 压砂田 土壤贮水量 土壤肥力 |
Characteristic Analysis of Soil Fertility of Gravel-mulched Land Around Xiangshan Mountain Area in Ningxia |
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| WANG Zhan-jun,JIANG Qi,HE Jian-long,MA Kun,HU Jing-tian.Characteristic Analysis of Soil Fertility of Gravel-mulched Land Around Xiangshan Mountain Area in Ningxia[J].Journal of Soil and Water Conservation,2010,24(2). |
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| Authors: | WANG Zhan-jun JIANG Qi HE Jian-long MA Kun HU Jing-tian |
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| Institution: | WANG Zhan-jun1,JIANG Qi1,HE Jian-long1,MA Kun2,HU Jing-tian2 (1.Institute of Desertification Control,Ningxia Academy of Agriculture , Forestry Sciences,Yinchuan 750002,2.College of Agriculture,Ningxia University,Yinchuan 750021) |
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| Abstract: | This paper was studied on the soil fertility and correlation factor of gravel-mulched land with different years (CK,1 a,3 a,5 a,10 a,15 a,25 a) around Xiangshan mountain.The results showed that graveled on the farmland can significantly increase the soil water storage.The soil water storage of gravel-mulched land with different years were superior to the control increased by 68.5%,50.12%,40.42%,60.03%,44.39%,respectively.By the effect of rainfall,the seasonal variations of soil water storage were almost sam... |
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| Keywords: | gravel-mulched land soil water storage soil fertility |
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