吉林农业大学资源与环境学院, 吉林省商品粮基地土壤资源可持续利用重点实验室,长春,130118
[ "王娇(1993-),女,在读硕士研究生,主要从事土壤肥力调控研究。E-mail:785344672@qq.com" ]
纸质出版:2020
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王娇, 王鸿斌, 赵兴敏, 等. 添加秸秆对不同有机含量土壤酸度及缓冲性能的影响[J]. 水土保持学报, 2020,34(6):361-368.
WANG Jiao, WANG Hongbin, ZHAO Xingmin, et al. Effect of Straw Addition on Acidity and Buffering Performance of Soil with Different Organic Contents[J]. 2020, 34(6): 361-368.
王娇, 王鸿斌, 赵兴敏, 等. 添加秸秆对不同有机含量土壤酸度及缓冲性能的影响[J]. 水土保持学报, 2020,34(6):361-368. DOI: 10.13870/j.cnki.stbcxb.2020.06.050.
WANG Jiao, WANG Hongbin, ZHAO Xingmin, et al. Effect of Straw Addition on Acidity and Buffering Performance of Soil with Different Organic Contents[J]. 2020, 34(6): 361-368. DOI: 10.13870/j.cnki.stbcxb.2020.06.050.
通过向低(LSOM)、中(MSOM)、高(HSOM)及去除(RSOM)有机质土壤中添加玉米秸秆进行室内培养试验,研究秸秆添加量对不同有机质含量土壤酸度及缓冲性能的影响。结果表明,在15℃恒温培养150天后,土壤pH、交换性盐基离子、CEC和盐基饱和度的含量均随着秸秆添加量的增加而上升,交换性H+、交换性Al3+含量均随着秸秆添加量的增加而降低;其中,秸秆添加量为10~15 g/kg时,LSOM处理中土壤pH增幅、交换性Al3+及交换性H+含量减幅最大;秸秆添加量为15~20 g/kg时,在MSOM和HSOM处理中土壤pH增幅及土壤交换性Al3+、交换性H+含量减幅最大;且HSOM处理添加秸秆后对降低土壤酸度效果最好。土壤中添加秸秆后可明显提高土壤酸碱缓冲能力,且土壤对加碱侧表现出的缓冲区间比酸侧明显;土壤的缓冲容量随秸秆添加量增加而升高,且HSOM处理对酸碱缓冲能力 > MSOM处理 > LSOM处理 > RSOM处理。
Corn straw was added to low
medium
high
and removal organic soil for indoor culture test to study the influence of straw addition amount on soil acidity and buffer performance of soil with different organic matter contents. The results showed that after 150 days of constant temperature culture at 15 ℃
the contents of soil pH value
exchangeable salt-base
CEC
and salt-base saturation all increased with the increase of straw addition
while the contents of exchangeable H+ and exchangeable Al3+ decreased with the increase of straw addition. Among them
when the addition amount of straw was between 10 g/kg and 15 g/kg
the increase of soil pH value and the content reduction of exchangeable Al3+ and exchangeable H+ were the largest in the LSOM treatment. When the adding amount of straw was between 15 g/kg and 20 g/kg
the increase of soil pH value and the content of soil exchangeability Al3+ and exchangeability H+ decreased the most in the MSOM treatment and HSOM treatment. Moreover
adding straw to the HSOM treatment had the best effect on reducing soil acidity. Adding straw to the soil can obviously improve the buffer capacity of soil acid-base
and the buffer capacity of soil to the alkali side was more obvious than that to the acid side. The buffer capacity of soil increased with the increase of straw addition
and the acid and alkali buffer capacity of treatment was HSOM > MSOM > LSOM > RSOM.
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