首页> 外文期刊>土壤圈(英文版) >Tillage Effect on Organic Carbon in a Purple Paddy Soil
【24h】

Tillage Effect on Organic Carbon in a Purple Paddy Soil

机译:耕作对紫色稻田土壤有机碳的影响

获取原文
获取原文并翻译 | 示例
       

摘要

The distribution and storage of soil organic carbon (SOC) based on a long-term experiment with various tillage systems were studied in a paddy soil derived from purple soil in Chongqing, China. Organic carbon storage in the 0-20and 0-40 cm soil layers under different tillage systems were in an order: ridge tillage with rice-rape rotation (RT-rr)> conventional tillage with rice only (CT-r) > ridge tillage with rice only (RT-r) > conventional tillage with rice-rape rotation (CT-rr). The RT-rr system had significantly higher levels of soil organic carbon in the 0-40 cm topsoil, while the proportion of the total remaining organic carbon in the total soil organic carbon in the 0-10 cm layer was greatest in the RT-rr system. This was the reason why the RT-rr system enhanced soil organic carbon storage. These showed that tillage system type was crucial for carbon storage. Carbon levels in soil humus and crop-yield results showed that the RT-rr system enhanced soil fertility and crop productivity. Adoption of this tillage system would be beneficial both for environmental protection and economic development.
机译:在重庆市紫色土水稻土上,通过长期不同耕作制度的试验,研究了土壤有机碳的分布与存储特征。在不同耕作制度下,0-20和0-40 cm土壤层中的有机碳存储顺序为:水稻-油菜轮作垄作耕作(RT-rr)>仅水稻-传统耕作作作(CT-r)>仅水稻(RT-r)>水稻轮作的常规耕作(CT-rr)。 RT-rr系统在0-40 cm表土中的土壤有机碳含量明显较高,而在0- 10 cm层中,总残留有机碳在总土壤有机碳中的比例最大。系统。这就是RT-rr系统增强土壤有机碳存储量的原因。这些表明耕作系统类型对于碳储存至关重要。土壤腐殖质中的碳含量和农作物产量结果表明,RT-rr系统提高了土壤肥力和农作物生产力。采用这种耕作制度将有利于环境保护和经济发展。

著录项

  • 来源
    《土壤圈(英文版)》 |2006年第5期|660-667|共8页
  • 作者单位

    College of Resources and Environment, Southwest Agricultural University, Chongqing 400716 (China);

    College of Environmental Science and Technology, Guangzhou University, Guangzhou 510006 (China);

    College of Resources and Environment, Southwest Agricultural University, Chongqing 400716 (China);

    College of Resources and Environment, Southwest Agricultural University, Chongqing 400716 (China);

    College of Resources and Environment, Southwest Agricultural University, Chongqing 400716 (China);

    College of Resources and Environment, Nanjing Agricultural University, Nanjing 210095 (China);

  • 收录信息 中国科学引文数据库(CSCD);
  • 原文格式 PDF
  • 正文语种 chi
  • 中图分类 农业基础科学;
  • 关键词

    carbon sequestration; organic carbon storage; purple paddy soil; tillage system;

    机译:固碳;有机碳储藏;紫色稻田;耕作制度;
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号