摘要
选取吉林省黑土、黑钙土及白浆土3种典型耕地土壤为研究对象,采用优化后的酸碱滴定法及灰色关联法对土壤酸碱缓冲性能及影响因素进行研究。结果表明:白浆土碱缓冲能力最强,碱缓冲容量2.5~3.6 cmol/(kg·pH),对酸的缓冲性能最弱,酸缓冲容量2.5~4.3 cmol/(kg·pH);黑钙土对碱的缓冲性能最弱,碱缓冲容量0.7~2.3 cmol/(kg·pH),大部分碳酸盐含量高的黑钙土对酸的缓冲性能最强,酸缓冲容量5.2~10.4 cmol/(kg·pH),小部分碳酸盐含量低的黑钙土酸缓冲容量在1.5~5.2 cmol/(kg·pH);黑土介于两者之间,酸、碱缓冲容量分别为4.4~6.2,2.0~2.3 cmol/(kg·pH);土壤内在性质中,对白浆土、黑土酸缓冲性能影响最强的因素是土壤初始pH,对碱缓冲性能影响最强的是土壤质地;对黑钙土酸缓冲性能影响最强的是碳酸盐含量,对碱缓冲性能影响最强的是土壤质地。
Three typical cultivated soils,black soil,chernozem and albic soil,were selected as the research objects.The optimized acid-base titration method and grey correlation method were used to study the acid-base buffering performance and influencing factors.The results show that alkaline buffering capacity of albic soil is the strongest,which is 2.5-3.6 cmol/(kg·pH),and acid buffering capacity is the weakest,which is 2.5-4.3 cmol/(kg·pH).Alkaline buffering capacity of chernozem is the weakest,which is 0.7-2.3 cmol/(kg·pH),acid buffering capacity of most chernozem with high carbonate content is the strongest,which is 5.2-10.4,and acid buffering capacity of a small part of chernozem with low carbonate content is 1.5-5.2 cmol/(kg·pH).Acid and alkali buffering capacity of black soil is 4.4-6.2 cmol/(kg·pH)and 2.0-2.3 cmol/(kg·pH).Among the inherent properties of soil,the factor with the strongest effect on acid buffering performance of albic soil and black soil is soil initial pH,and the most influential factor on alkali buffering performance is soil texture.Carbonate content has the strongest effect on acid buffering property of chernozem,and soil texture has the strongest effect on alkali buffering property.
作者
赵旋彤
王鸿斌
赵兰坡
赵兴敏
王娇
ZHAO Xuantong;WANG Hongbin;ZHAO Lanpo;ZHAO Xingmin;WANG Jiao(College of Resources and Environment,Jilin Agricultural University,Key Laboratory of Soil Resource Sustainable Utilization for Commodity Grain Bases of Jilin Province,Changchun 130118,China)
出处
《吉林农业大学学报》
CAS
CSCD
北大核心
2023年第2期163-171,共9页
Journal of Jilin Agricultural University
基金
国家重点研发计划项目(2018YFD0300201)。
关键词
黑钙土
白浆土
黑土
土壤酸碱缓冲性能
吉林省
chernozem
albic soil
black soil
soil acid-base buffering performance
Jinlin province
