1. 山西农业大学资源环境学院, 山西 太谷,030801
2. 山西农业大学农业资源与环境国家级实验教学示范中心, 山西 太谷,030801
3. 山西农业大学草业学院, 山西 太谷,030801
[ "李媛(1995-),女,在读硕士研究生,主要从事矿区土壤复垦研究。E-mail:2373885492@qq.com" ]
纸质出版:2022
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李媛, 郝鲜俊, 高文俊, 等. 不同有机肥对矿区复垦土壤磷素累积及淋失风险研究[J]. 水土保持学报, 2022,36(2):344-351.
LI Yuan, HAO Xianjun, GAO Wenjun, et al. Effects of Different Organic Fertilizers on Phosphorus Accumulation and Leaching Risk of Reclaimed Soil in Mining Area[J]. 2022, 36(2): 344-351.
李媛, 郝鲜俊, 高文俊, 等. 不同有机肥对矿区复垦土壤磷素累积及淋失风险研究[J]. 水土保持学报, 2022,36(2):344-351. DOI: 10.13870/j.cnki.stbcxb.2022.02.044.
LI Yuan, HAO Xianjun, GAO Wenjun, et al. Effects of Different Organic Fertilizers on Phosphorus Accumulation and Leaching Risk of Reclaimed Soil in Mining Area[J]. 2022, 36(2): 344-351. DOI: 10.13870/j.cnki.stbcxb.2022.02.044.
为探究定位培肥矿区复垦土壤过程中不同有机肥对土壤磷素累积状况及环境流失风险的差异。以山西省孝义市采煤塌陷复垦土壤为研究对象
研究不同有机肥(鸡粪、猪粪、牛粪)和化肥在4个施磷水平下(0
25
50
100 kg/hm2)培肥4年后对矿区复垦土壤全磷、Olsen-P、Mehlich3-P、CaCl2-P以及磷饱和度(DPS)的影响及其之间的变化关系。结果表明:(1)施用有机肥增加土壤中磷素含量
且施磷量越大
对磷素含量的影响越明显
特别是土壤全磷、Olsen-P和Mehlic3-P
并使CaCl2-P呈增加的趋势;与不施磷处理和化肥相比
施用有机肥提高了土壤磷饱和度(DPS);总体来看
不同施肥处理对土壤磷素含量的影响均表现为鸡粪 ≥ 猪粪>牛粪>化肥。(2)各施肥处理土壤Olsen-P与Mehlich3-P、Olsen-P与CaCl2-P、Mehlich3-P与CaCl2-P之间存在显著的线性相关性。(3)与猪粪、牛粪和化肥处理相比
鸡粪处理对矿区复垦土壤磷素流失风险影响最大
当磷饱和度(DPS) ≥ 39.31%、Olsen-P ≥ 26.24 mg/kg、Mehlich3-P ≥ 49.06 mg/kg时
土壤CaCl2-P含量迅速增加。因此
可将上述指标作为矿区复垦土壤磷素流失的临界值
超过此值
土壤磷素流失风险加大
需要警惕对地表、地下水体的污染。
In order to explore the difference of phosphorus accumulation and loss risk of different organic fertilizers in the process of reclaiming the soil in the mining area. In this experiment
the reclaimed soil of coal mining collapse in Xiaoyi City
Shanxi Province was taken as the research object
and the effect of different organic fertilizers
including poultry manure
swine manure
cow manure and chemical fertilizer
under 4 P levels (0
25
50
100 kg/hm2) after 4 years in reclaimed soil of mining area on total phosphorus
Olsen-P
Mehlich3-P
CaCl2-P
and degree of phosphorus saturation (DPS) and the relationship among them were studied. The results showed that:(1) The application of organic fertilizers increased the phosphorus content in the soil
and the greater the amount of phosphorus applied
the more obvious the impact on the phosphorus content
especially the total phosphorus
Olsen-P
Mehilic3-P in the soil
and CaCl2-P increased; Compared with non-phosphorus treatment and chemical fertilizer
the application of organic fertilizers increased the surface layer (0-20 cm) soil degree of phosphorus saturation (DPS); In general
the effects of different fertilization treatments on the soil phosphorus content showed that poultry manure ≥ swine manure>cow manure>chemical fertilizer. (2) There was a significant linear correlation between the soil Olsen-P and Mehlich3-P
Olsen-P and CaCl2-P
Mehlich3-P and CaCl2-P in each fertilization treatment. (3) Compared with swine manure
cow manure and chemical fertilizer treatment
poultry manure treatment had the greatest impact on the risk of phosphorus loss in reclaimed soil. When DPS ≥ 39.31%
Olsen-P ≥ 26.24 mg/kg and Mehlich3-P ≥ 49.06 mg/kg
the content of CaCl2-P in soil increased rapidly. Therefore
the above indexs could be used as the critical value of phosphorus loss in reclaimed soil of mining area. If these values exceed
the risk of soil P loss would increase. We need to be vigilant about the pollution of surface and underground water.
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