FAN Qing-feng,ZHANG Yu-long,ZHANG Yu-ling,et al.Study on Soil Acidification Status of Protected Field in Liaoning Province[J].Northern Horticulture,2013,37(22):173-176.
辽宁地区保护地土壤酸化现状研究
- Title:
- Study on Soil Acidification Status of Protected Field in Liaoning Province
- 文章编号:
- 1001-0009(2013)22-0173-04
- Keywords:
- soil pH; soil acidification; protected field soil; Liaoning
- 分类号:
- S 156
- 文献标志码:
- A
- 摘要:
- 以采集于辽宁省朝阳市、铁岭市、沈阳市于洪区、沈阳市东陵区、丹东市5个地点的蔬菜保护地及其相邻露地旱田土壤样品为研究对象，研究测定了不同采样地土壤的酸化现状。结果表明：辽宁省朝阳市、铁岭市、沈阳市东陵区、沈阳市于洪区地表层土壤pH值由露地改为保护地种植蔬菜后均呈显著下降趋势（P<0.05），土壤pH平均值分别比相应露地降低了0.96、0.69、1.05、0.75个单位；而丹东市保护地土壤pH值平均值为5.93，比露天蔬菜土壤提高了0.46个单位，但差异不显著，说明随种植年限的增加，保护地土壤的pH值呈持续下降趋势；朝阳市、铁岭市、沈阳市东陵区、沈阳市于洪区保护地土壤的pH值均随土层深度的增加而增加，土层越深越接近露地土壤的pH值，表层土壤（0～20 cm）的pH值显著低于其下各土层的pH值（P<0.05）；而丹东市保护地土壤0～80 cm各土层的pH值表现出表层土壤高于深层土壤，即随着土层深度的增加，其pH值呈逐渐降低的趋势。
- Abstract:
- The soil acidification status were studied in this paper by measuring pH of the protected field soil in Chenyang,Tieling,Yuhong,Dongling and Dandong of Liaoning province.The results indicated that the soil pH sharply decreased after the field began vegetable cultivation under protection in Chaoyang,Tieling,Dongling,Yuhong,and the sampling point was 0.96,0.69,1.05,0.75 lower respectively.The soil pH increased with soil depth increasing in Chanyang,Tieling,Yuhong and Dongling.The soil pH increased and closed to open field with soil depth increasing,and topsoil(0～20 cm) pH was far below the under layer.But the pH of topsoil layer was higher than other soil layers in protectedfield.The soil pH declined with soil depthincreasing in Dandong 0~80 cm.With replanting time prolonging,the soil pH in top soil was higher than the under layer.
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备注/Memo
第一作者简介：范庆锋(1980-)，男，辽宁抚顺人，博士，讲师，现主要从事土壤改良等研究工作。E-mail:fanqingfeng1@163.com.
责任作者：张玉龙(1954-)，男，辽宁朝阳人，博士，教授，现主要从事土壤改良及水资源与农业节水等研究工作。
基金项目：辽宁省设施蔬菜产业创新团队资助项目；
辽宁省教育厅科研资助项目（L2011116）；
沈阳市科技攻关资助项目（F11-117-3-00；F11-264-1-02；1091108-3-02）；
沈阳农业大学青年基金资助项目（20111005）。
收稿日期：2013-09-05