生态学报2017，Vol.37Issue(2)：425-431,7.DOI:10.5846/stxb201508031633
土壤改良剂对黄河三角洲滨海盐碱土生化特性的影响
Effect of Soil Ameliorants on the Biochemical Properties of Coastal Saline-alkali Soil in the Yellow River Delta
摘要
Abstract
The present study analyzed the improved biochemical properties of the coastal saline-alkali soil in the Yellow River Delta using four factors of a four level orthogonal variance analysis.Four kinds of ameliorants,including cow dung (A),gypsum (B),straw (C),and a water-retaining agent (D),were applied with different formulas.The objective of the present study was to determine the most efficient drainage scheme and provide a theoretical basis for the improvement of the coastal saline-alkali soil in the Yellow River Delta.The results indicated that the effect of cow dung,gypsum,and straw on soil respiration intensity,phosphatase,urease,dehydrogenase,and microbial biomass carbon and nitrogen showed significant(P＜0.05) differences among the treatments with improvement;and the effect of the water-retaining agent on microbial biomass C and N showed significant (P＜0.05)differences among the treatments with improvement.Significantly higher indicator values than the control group were also observed.The contribution of the four kinds of ameliorants differed in the improvement of saline soil conditions.Considering the results,the most efficient formula for soil respiration intensity,enzymes,and microbial biomass C and N was A4 B3 C2 D2.Compared to the control group,soil respiration intensity,phosphatase,urease,dehydrogenase,and microbial C and N increased by 109.64％,89.54％,62.20％,81.75％,60.50％,and 118.00％,respectively.The correlation analysis indicated that there were significant (P＜0.05)correlations between the soil biochemical parameters,except for microbial N and urease.The results of the current study could provide a theoretical basis for the improvement and utilization of saline alkali soil in the Yellow River Delta.关键词
改良剂/黄河三角洲/滨海盐碱土/正交设计/生化特性Key words
ameliorants/Yellow River Delta/coastal saline-alkali soil/orthogonal design/biochemical properties引用本文复制引用
王睿彤,孙景宽,陆兆华..土壤改良剂对黄河三角洲滨海盐碱土生化特性的影响[J].生态学报,2017,37(2):425-431,7.基金项目
国家自然科学基金项目(41401100) （41401100）
山东省科技发展计划项目(2014GSF117022) （2014GSF117022）
山东省自然科学基金项目(ZR2013CQ007) （ZR2013CQ007）
滨州学院博士基金项目(2013Y05) （2013Y05）
