耕作措施对土壤水稳性团聚体及有机碳分布的影响OA北大核心CSCDCSTPCD
Effects of Tillage Practices on Water-stable Aggregation and Aggregate-associated Organic C in Soils
通过9a不同耕作的定位试验,研究了深松、旋耕、免耕和传统耕作4种耕作措施对关中壤土小麦-玉米轮作条件下土壤水稳性团聚体及有机碳垂直分布的影响.结果表明,与传统耕作相比,深松、旋耕、免耕措施均提高了0～40 cm土层中＞2 mm和0.25～2 mm大团聚体含量、团聚体有机碳贡献率和团聚体平均重量直径,而传统耕作相应地增加了0～40 cm土层中0.053～0.25 mm微团聚体和＜0.053 mm粘砂粒含量及其有机碳贡献率.同时深松、旋耕、免耕措施提…查看全部>>
A field experiment was conducted on the Guanzhong plain to study the effects of tillage on the distribution of water-stable aggregates and aggregate-associated organic C. Four tillage practices were compared: sub-soiling, rotary tillage, no-tillage, and conventional tillage. The soil type was a Lou soil and the cropping system was a winter wheat-summer maize rotation. The results showed that compared to conventional tillage, nine years of sub-soiling, rotary…查看全部>>
王勇;姬强;刘帅;孙汉印;王旭东
西北农林科技大学资源环境学院,陕西杨凌712100西北农林科技大学资源环境学院,陕西杨凌712100西北农林科技大学资源环境学院,陕西杨凌712100西北农林科技大学资源环境学院,陕西杨凌712100西北农林科技大学资源环境学院,陕西杨凌712100
农业科技
耕作措施水稳性团聚体团聚体有机碳
tillage practices water-stable aggregates aggregate-associated organic C
《农业环境科学学报》 2012 (7)
1365-1373,9
科技支撑资助项目(2007BAD89B16,2012BAD14B11)中国科学院知识创新工程项目(KSCX1-YW-09-07)
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