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当前位置: 首页 > 文章 > 海南胶园土壤酸碱缓冲性能研究 热带作物学报 2016,37 (2) 345-350
Position: Home > Articles > Soil Acid Buffer Performance of Rubber Plantation in Hainan Chinese Journal of Tropical Crops 2016,37 (2) 345-350

海南胶园土壤酸碱缓冲性能研究

作  者：
井玉丹;林清火;郭澎涛;刘海林;王家宝;罗微
单  位：
中国热带农业科学院橡胶研究所;海南大学农学院
关键词：
海南;橡胶园土壤;土壤酸缓冲能力;土壤酸缓冲容量
摘  要：
为探明海南省橡胶园土壤酸缓冲性能及其影响因素,采用酸碱滴定法对海南省植胶区代表性的5种类型土壤进行测定。结果表明:供试土壤pH处于4.58~6.69,平均为5.53。当pH3.5~6.0时,土壤缓冲体系为初级缓冲体系,不同类型土壤酸缓冲能力相差较大,土壤中有机质含量、阳离子交换量、粘粒含量等因素起主要的缓冲作用,各胶园土壤酸缓冲容量均较小(pHBC=7.50~20.62 mmol/kg)。当pH<3.5时,土壤缓冲体系为次级缓冲体系,各土壤缓冲能力急剧增强,且在同一pH阶段,各土壤酸缓冲能力相差较小。可见,海南省土壤大多属于酸性,土壤酸缓冲能力差,不同土壤之间土壤酸缓冲性能相差很大,土壤有机质含量、阳离子交换量、粘粒含量等土壤理化性质是影响土壤酸缓冲作用的主要因素。
译  名：
Soil Acid Buffer Performance of Rubber Plantation in Hainan
作  者：
JING Yudan;LIN Qinghuo;GUO Pengtao;LIU Hailin;WANG Jiabao;LUO Wei;College of Agronomy,Hainan University;Rubber Research Institute,CATAS/Key Laboratory of Ministry of Agriculture for Rubber Biology and Genetic Resource Utilization;
关键词：
Hainan;;Soil of rubber plantation;;Soil acid buffer ability;;Soil acid buffer capacity
摘  要：
The aim of this paper was to explore the soil acid buffer performance of rubber plantation in Hainan Province and to find main factors associating with this performance. The acid-base titration determination was used to analyze soil samples collected from the five typical soil types of Hainan Province. Results showed that soil p H ranged from 4.58 to 6.69, with an average of 5.53. When p H3.5-6.0, soil buffer system was the primary buffer system. Different soils differed significantly in soil acid buffer abilities. However, the soil acid buffer capacities were small(p HBC=7.50-20.62 mmol/kg). Soil organic matter, cation exchange content, and clay contents were the main factors in regulating soil buffer abilities. When p H<3.5, soil buffer system was the secondary buffer system.The soil buffer capacities increased dramatically, and differed slightly between different soil samples. In conclusion,most soils were acidicin Hainan Province. Different soils differed greatly in the soil acid buffer ability. However,the soil acid buffer abilities were rather small for most soils. Soil physical and chemical properties were the main factors influencing soil acid buffer abilities, such as soil organic matter, cation exchange content, and clay contents.

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