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| 重庆市柑桔园土壤酸碱度及金属元素含量的变化特征 | |
| 引用本文： | 温明霞,石孝均,聂振朋,周鑫斌.重庆市柑桔园土壤酸碱度及金属元素含量的变化特征[J].水土保持学报,2011,25(5):191-194,199. |
| 作者姓名： | 温明霞 石孝均 聂振朋 周鑫斌 |
| 作者单位： | 1. 西南大学资源环境学院,重庆400715／浙江省柑桔研究所,浙江台州318020 2. 西南大学资源环境学院,重庆,400715 3. 浙江省柑桔研究所,浙江台州,318020 |
| 基金项目： | 农业部公益性行业科研专项“最佳养分管理技术研究与应用”(201103003) |
| 摘 要： | 为确定重庆市柑桔园土壤酸碱度及金属元素的含量状况及变化特征,2008年对重庆104个柑桔园的土壤农化样（树冠周围）和背景样（树间对照区）进行采样分析。结果表明,84.6%的植桔土壤pH值呈下降趋势,平均降幅为9.6%,56.8%的柑桔园土壤pH小于6.5,与背景样相比,土壤pH值小于5.5的果园明显增加,占调查总数的32.7%;7.8%的柑桔园土壤pH在4.8以下,不适合柑桔的生长。随着pH的降低,土壤有效钙、有效镁含量呈降低趋势,而土壤有效铁、有效锰、有效铜和有效锌含量则明显上升,进一步酸化可能对柑桔生长产生毒害,在柑桔的栽培管理中,应采取必要措施进行防治。 |
| 关 键 词： | 柑桔园 土壤pH 金属元素 |
Characteristics of Soil pH and Metal Element Contents of Citrus Orchard in Chongqing |
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| WEN Ming-xi,SHI Xiao-jun,NIE Zhen-peng,ZHOU Xin-bin.Characteristics of Soil pH and Metal Element Contents of Citrus Orchard in Chongqing[J].Journal of Soil and Water Conservation,2011,25(5):191-194,199. | |
| Authors: | WEN Ming-xi SHI Xiao-jun NIE Zhen-peng ZHOU Xin-bin |
| Institution: | WEN Ming-xia1,2,SHI Xiao-jun1,NIE Zhen-peng2,ZHOU Xin-bin1(1.College of Resources and Environment,Southwest University,Chongqing 400715,2.Zhejiang Citrus Research Institute,Taizhou,Zhejiang 318020) |
| Abstract: | In order to understand fully characteristics of soil acility and alkalinity,metal element contents of citrus orchards in Chongqing,soil pH and available nutrition content of agrochemical soil(around trees crown) and background soil(between tree lines) from 104 citrus orchards were detected in 2008.The results showed that soil pH decreased by 9.6% in 84.6% citrus orchards and soil pH value was below 6.5 in 56.8% citrus orchards.Soil pH were below 5.5 in 32.7% citrus orchards.Around 7.8% citrus orchards did n... |
| Keywords: | cirtrus orchard soil pH metal element |
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