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当前位置: 首页 > 文章 > 种植玉米对矿区复垦土壤团聚体稳定性及有机碳分布的影响 山西农业科学 2020 (2) 228-232
Position: Home > Articles > Effects of Planting Maize on the Stability of Soil Aggregates and Organic Carbon Distribution in Reclaimed Soil Journal of Shanxi Agricultural Sciences 2020 (2) 228-232

种植玉米对矿区复垦土壤团聚体稳定性及有机碳分布的影响

作  者：
籍晟煜;张强;靳东升;郜春花;李建华;卢晋晶;张云龙
单  位：
山西省农业科学院农业环境与资源研究所;山西大学生物工程学院
关键词：
复垦土壤;植物种植;水稳性团聚体;有机碳
摘  要：
为揭示种植玉米下采煤塌陷区复垦地土壤结构中团聚体稳定性和每个粒径有机碳含量的差异,依托山西省农业科学院农业环境与资源研究所土壤长期定位古交试验基地,研究玉米、自然恢复2种种植处理对土壤水稳性团聚体组成及有机碳分布的影响。结果表明,在大团聚体中,各粒级团聚体所占比例大小为自然恢复>玉米根区>玉米非根区;土壤微团聚体在团聚体结构中占有优势,种植玉米根区与非根区复垦土壤团聚体各个粒径的含量,均以<0.25 mm的微团聚体含量最大,约占73.42%～78.73%。在微团聚体当中,种植玉米根区的团聚体指标几何平均直径比玉米非根区和自然恢复区都大,而种植玉米根区在分形维数比玉米非根区和自然恢复区都小。说明微团聚体在种植玉米区土壤团聚体的稳定性较高。农作物种植提高了各粒径团聚体的有机碳含量比,各个粒径有机碳含量的发生变化与团聚体粒径的大小不一有关,土壤结构中微团聚体有机碳含量对整体有机碳含量的贡献率通过种植玉米得到提高。
译  名：
Effects of Planting Maize on the Stability of Soil Aggregates and Organic Carbon Distribution in Reclaimed Soil
作  者：
JI Shengyu;ZHANG Qiang;JIN Dongsheng;GAO Chunhua;LI Jianhua;LU Jinjing;ZHANG Yunlong;College of Bioengineering,Shanxi University;Institute of Agricultural Environment and Resources,Shanxi Academy of Agricultural Sciences;
关键词：
reclaimed soil;;plant cultivation;;stability of soil aggregates;;organic carbon
摘  要：
To explore the aggregate stability and organic carbon distribution in reclaimed soil under maize cultivation, relying on the long-term positioning of the area base of the Institute of Agricultural Environment and Resources, Shanxi Academy of Agricultural Sciences, the test consisted of two fertilizer treatments, maize and natural restoration, the aggregate stability and organic carbon were studied. The results showed that in the large aggregates, the proportion of each granular aggregate was roughly natural recovery area >maize root area>maize non-root area. Soil microaggregate was the dominant structure of soil aggregate. The aggregates of soil cultivated in the root area and non-root area of maize grown were both<0.25 mm of microaggregates account for the largest proportion, accounting for approximately 73.42%-78.73%. Among the soil micro aggregate, the planting maize root area was larger in R0.25, GMD than the non-root area and natural recovery area of maize, and the planting maize root area was smaller in fractal dimension than the non-root area and natural recovery area of maize. The results showed that the stability of soil aggregates in maize growing area was higher. Crop planting increased the ratio of organic carbon content in aggregates of different particle sizes. The change of organic carbon content in aggregates of different particle sizes was related to the size aggregates, the contribution rate of organic carbon content of soil microaggregates to the total organic carbon content was increased by planting corn.

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