| 甘肃中部日光温室土壤剖面理化特征 |
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| 引用本文： | 黄焱宁,任晓艳,陈年来,邵世禄,张涛.甘肃中部日光温室土壤剖面理化特征[J].冰川冻土,2009,31(3):576-581. |
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| 作者姓名： | 黄焱宁 任晓艳 陈年来 邵世禄 张涛 |
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| 作者单位： | 甘肃农业大学,资源与环境学院,甘肃,兰州,730070;甘肃农业大学,资源与环境学院,甘肃,兰州,730070;中国科学院,寒区旱区环境与工程研究所,甘肃,兰州,730000 |
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| 基金项目： | 国家科技支撑项目"高原夏菜品质发育机理研究(高原夏菜高效安全生产及保鲜加工关键技术研究与示范)" |
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| 摘 要： | 比较分析了甘肃中部白银市大田和10 a日光温室不同深度土壤理化性状,以探讨日光温室条件下土壤健康状况和养分变化情况.结果表明:长期使用木质素含量较低的有机肥和特殊的水热环境使温室土壤有机质分解加快,积累量减少,造成土壤缓冲能力降低.大量施肥使温室土壤全量和速效氮磷钾显著增加,表层轻度酸化,肥力水平升高,但可溶性盐分在表层聚集明显,引发土壤次生盐溃化.表层土壤速效氮磷富集,并出现了向下淋溶现象,地下水污染风险增加.建议增施C/N比较高的有机肥和微生物肥料,选择致盐能力弱的化肥品种,以维护土壤健康和蔬菜的安全高效生产.
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| 关 键 词： | 日光温室 土壤剖面 土壤质量 养分淋溶 |
Physical and Chemical Properties of the Soil in Greenhouses in Central Gansu |
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| HUANG Yan-ning,REN Xiao-yan,CHEN Nian-lai,SHAO Shi-lu,ZHANG Tao.Physical and Chemical Properties of the Soil in Greenhouses in Central Gansu[J].Journal of Glaciology and Geocryology,2009,31(3):576-581. |
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| Authors: | HUANG Yan-ning REN Xiao-yan CHEN Nian-lai SHAO Shi-lu ZHANG Tao |
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| Institution: | 1.College of Resources and Environmental Sciences;Gansu Agricultural University;Lanzhou Gansu 730070;China;2.Cold and Arid Regions Environmental and Engineering Research Institute;Chinese Academy of Sciences;Lanzhou Gansu 730000;China |
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| Abstract: | The physical and chemical properties of soils at 0~200 cm in depth from a 10-year greenhouse were measured and compared with those in open field soil to evaluate soil quality.The results showed that long-term use of organic fertilizer with low content of lignin in conjunction with the special water and heat condition speeds up the decomposition of organic matter in greenhouse soil and then reduces their accumulation,resulting in a decrease of soil buffering capacity.In greenhouse,high rate of fertilization ... |
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| Keywords: | greenhouse soil profile soil quality nutrient eluviations |
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