当前位置: 首页 > 文章 > 糠醛渣及其生物炭对盐渍土理化性质影响的比较研究 农业环境科学学报 2014,33 (03) 130-136
Position: Home > Articles > Effects of Furfural and Its Biochar Additions on Physical-chemical Characteristics of a Saline Soil Journal of Agro-Environment Science 2014,33 (03) 130-136

糠醛渣及其生物炭对盐渍土理化性质影响的比较研究

作  者:
孙军娜;董陆康;徐刚;邵宏波
单  位:
中国科学院烟台海岸带研究所海岸带生物学与生物资源利用重点实验室;中国科学院大学;青岛科技大学生命科学研究所;烟台大学化学化工学院
关键词:
糠醛渣;生物炭;总有机碳;阳离子交换量;碱化度;有效磷
摘  要:
为了更好地利用糠醛渣及其炭化产物来改良盐渍土,通过室内56 d的培养试验研究了添加糠醛渣和其生物炭后土壤pH值、电导率、总有机碳、阳离子交换量、碱化度、有效磷、硝氮、氨氮等理化性质的变化。结果表明,糠醛渣加入土壤后能降低土壤pH值,且效果比生物炭显著,2.5%糠醛渣甚至比5%生物炭更易降低盐渍土的pH值。从提高土壤有效磷含量的角度来说,5%的糠醛渣能提高土壤中4~6倍有效磷含量,其改良作用要优于生物炭。与糠醛渣相比,生物炭更能增加土壤总有机碳含量,最大增幅处比糠醛渣高62%。在降低土壤碱化度方面生物炭也比糠醛渣强,5%糠醛渣和生物炭处理土壤碱化度分别为培养初期的51%和43%。同时也发现,生物炭并未比糠醛渣有更高的增加土壤阳离子交换量的能力,这可能与试验周期较短有关。总之,从短期试验效果看,在降低土壤pH值和提高土壤有效磷方面,糠醛渣作用较为显著;而在提高土壤总有机碳含量,降低土壤碱化度方面,生物炭优于糠醛渣。
译  名:
Effects of Furfural and Its Biochar Additions on Physical-chemical Characteristics of a Saline Soil
作  者:
SUN Jun-na;DONG Lu-kang;XU Gang;SHAO Hong-bo;Key laboratory of Coastal Biology&Bioresources Utilization, Yantai Institute of Coastal Zone Research,Chinese Academy of Sciences;University of Chinese Academy of Sciences;Chemistry and Chemical Engineering College, Yantai University;Institute of Life Sciences, Qingdao University of Science&Technology;
关键词:
furfural;;biochar;;total organic carbon;;cation exchange capacity;;exchange sodium percentage;;available phosphorus
摘  要:
So far there is little information available about furfural and its biochar effects on saline soils. Here we conducted an incubation experiment to study the effects of furfural and its biochar applications on soil pH, electricity conductivity, total organic carbon, cation exchange capacity, exchange sodium percentage and available phosphorus of a saline soil during 56 d incubation. Furfural was found to be more effective in influencing soil pH and available phosphorus than its biochar. The decrease of soil pH by 5% biochar was less than that by2.5% furfural. Compared with the control, applying furfural increased soil available phosphorus by 4 to 6 times, while biochar increased it by 2 to 5 times. However, biochar increased total organic carbon 62% greater than furfural did. In addition, biochar addition reduced soil exchange sodium percentage more effectively than furfural did. No significant difference between furfural and its biochar was found in soil cation exchange capacity.

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