| 成都龙泉驿紫色土元素迁移及其与桃树黄化关系的模拟 |
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| 引用本文： | 吴勇,覃建雄,吴柏清,孙先锋.成都龙泉驿紫色土元素迁移及其与桃树黄化关系的模拟[J].成都理工大学学报(自然科学版),1995(3). |
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| 作者姓名： | 吴勇 覃建雄 吴柏清 孙先锋 |
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| 作者单位： | 成都理工学院水文地质与工程地质系，四川省地质环境监测总站 |
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| 摘 要： | 文章通过模拟实验建立了龙泉驿桃园土壤Ｃａ２＋指数衰减迁移模式，分析了Ｃａ２＋和Ｍｇ２＋差异迁移原因，认为Ｍｇ２＋迁移过程中峰值是土壤团粒结构破坏产生大量解吸Ｍｇ２＋的结果。桃树黄化区土壤富ＳｉＯ２和Ａｌ２Ｏ３，而贫活性元素，致使可迁出离子总量远远小于正常土壤，并影响桃树对其他元素的正常吸收，导致黄化。
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| 关 键 词： | 元素迁移，桃树黄化，土壤，模拟实验，龙泉驿 |
SIMULATION OF ELEMENT MIGRATION IN PURPLE SOIL AND ITS CORRELATION WITH PEACH YELLOWING IN THE PEACH ORCHARD OF LONGQUANYI DISTRICT, CHENGDU |
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| Wu Yong,Qin Jianxiong,Wu Boqing,Sun Xianfeng.SIMULATION OF ELEMENT MIGRATION IN PURPLE SOIL AND ITS CORRELATION WITH PEACH YELLOWING IN THE PEACH ORCHARD OF LONGQUANYI DISTRICT, CHENGDU[J].Journal of Chengdu University of Technology: Sci & Technol Ed,1995(3). |
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| Authors: | Wu Yong Qin Jianxiong Wu Boqing Sun Xianfeng |
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| Institution: | Wu Yong;Qin Jianxiong;Wu Boqing;Sun Xianfeng |
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| Abstract: | The paper presents an exponential decay model of Ca2+ in soil of the peach orchard in theLongquanyi District that has been built by simulating experiment,analyses the reason for the differential migration of Ca2+ and MS2+ between the yellowing soil and normal soil,and proves that the peakvalue of Mg2+ is because the granular texture of soil is destroyed so as to desorb a lot of Mg2+. The soilin the peach yellowing area is rich in SiO2 and Al2O3 and poor in mobile elements so that the total volnme of the migrated elements is obviously less than that of normal soil,influences the absorption of, thepeach to other elementS,and leads the peach to yellowing. |
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| Keywords: | element migration peach yellowing simulating experiment soil Longquanyi District |
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