| 黑河流域盐渍土资源及紫花苜蓿改土培肥和生态恢复效应的研究 |
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| 引用本文： | 秦嘉海,金自学.黑河流域盐渍土资源及紫花苜蓿改土培肥和生态恢复效应的研究[J].计算机科学,2006(6):1106-1109. |
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| 作者姓名： | 秦嘉海 金自学 |
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| 作者单位： | 甘肃省河西学院农业资源与环境系河西生态研究所 甘肃张掖734000(秦嘉海)，浙江绍兴文理学院生物科学系 浙江绍兴312000(金自学) |
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| 摘 要： | 在黑河流域草甸盐土上种植了紫花苜蓿,改土培肥效果十分明显。3年生紫花苜蓿产鲜草55.20 t hm-2,折干草18.40 t hm-2,与CK比较0~20 cm土层中自然含水量增加90.65g kg-1,>0.25mm团粒结构增加32.34%,总孔度增加9.06%,土壤容重降低0.24g cm-3,pH由8.45降到8.20,全盐含量降低4.63g kg-1,脱盐率达到56.60%,有机质、速效N、P、K亦随之增加。
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| 关 键 词： | 黑河流域 盐渍土资源 紫花苜蓿 生态恢复 |
Salinized Soil Resources in Heihe Watershed and the Effects of Alfalfa on Soil Fertility and Ecological Reestablishment |
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| QIN Jia-hai,JIN Zi-xue.Salinized Soil Resources in Heihe Watershed and the Effects of Alfalfa on Soil Fertility and Ecological Reestablishment[J].Computer Science,2006(6):1106-1109. |
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| Authors: | QIN Jia-hai JIN Zi-xue |
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| Abstract: | The spatial distribution of salinized soil along Heihe watershed discussed in this paper.Medicago sativa was planted on this sanlinized soils.The results indicated that alfalfa could obviously improve soil properties as well as soil fertility.Fresh weight |
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| Keywords: | Heihe watershed Resources of salinized soil Alfalfa Ecological reestablishment |
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