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Fertilization increases paddy soil organic carbon density
  • ISSN号:1673-1581
  • 期刊名称:Journal of Zhejiang University-Science B(Biomedici
  • 时间:2012.4.4
  • 页码:274-282
  • 分类:X142[环境科学与工程—环境科学]
  • 作者机构:[1]Institute of Environmental Science and Technology, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310029, China, [2]Jiangxi Academy of Agricultural Sciences (National Engineering Research Centre for Improving Red Soil in China), Nanchang 330200, China, [3]Jiangxi Science and Technology Normal University, Nanehang 330045, China, [4]Agricultural Bureau of Qingyuan of Ji'an of Jiangxi Province, Ji'an 343009, China
  • 相关基金:Project supported by the Special Fund for Agro-scientific Research in the Public Interest (No. 201003059), the National Natural Science Foundation of China (Nos. 21077088, 40901142, 51008107, and 31000296), the National Key Science and Technology Special Projects of Water Body Pollution Control and Management (Nos. 2008ZX 07101-006 and 2008ZX 07528-005-003), and the National Science and Technologv Support Program of China (No. 2011BAD41B01)
  • 相关项目:稻田土壤有机磷酶学转化对有机肥输入的响应与归趋模拟
中文摘要:

地实验提供一个机会在土壤上学习授精的效果器官的碳(SOC ) 隐遁。我们取样了土壤从一长期(25 年) 在副热带的中国的稻实验。实验包括了八个处理:( 1 )检查,( 2 ) PK ,( 3 ) NP ,( 4 ) NK ,( 5 ) NPK ,( 6 ) 7F:3M ( N , P , K 无机的fertilizers+30%器官的 N ),( 7 ) 5F:5M ( N , P , K 无机的fertilizers+50%器官的 N ),( 8 ) 3F:7M ( N , P , K 无机的fertilizers+70%器官的 N )。授精与非使肥沃的检查处理相比在犁层增加了 SOC 内容。在顶的 SOC 密度 100 厘米土壤从 73.12 ~ 91.36 Mg/ha 。所有化肥处理的 SOC 密度比检查的大。联合了无机的化肥和器官的修正案的那些处理比收到仅仅无机的化肥的那些有更大的 SOC 密度。SOC 密度密切被相关到从器官的修正案和米饭残余变换的土壤碳的和。在稻土壤的碳隐遁能被平衡并且联合的授精完成。联合无机的化肥和器官的修正案的授精是一个有效持续惯例扣押 SOC。

英文摘要:

Field experiments provide an opportunity to study the effects of fertilization on soil organic carbon (SOC) sequestration. We sampled soils from a long-term (25 years) paddy experiment in subtropical China. The experiment included eight treatments: (1) check, (2) PK, (3) NP, (4) NK, (5) NPK, (6) 7F:3M (N, P, K inorganic fertilizers+30% organic N), (7) 5F:5M (N, P, K inorganic fertilizers+50% organic N), (8) 3F:7M (N, P, K inorganic fertilizers+70% or- ganic N). Fertilization increased SOC content in the plow layers compared to the non-fertilized check treatment. The SOC density in the top 100 cm of soil ranged from 73.12 to 91.36 Mg/ha. The SOC densities of all fertilizer treatments were greater than that of the check. Those treatments that combined inorganic fertilizers and organic amendments had greater SOC densities than those receiving only inorganic fertilizers. The SOC density was closely correlated to the sum of the soil carbon converted from organic amendments and rice residues. Carbon sequestration in paddy soils could be achieved by balanced and combined fertilization. Fertilization combining both inorganic fertilizers and organic amendments is an effective sustainable practice to sequestrate SOC.

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期刊信息
  • 《浙江大学学报:B卷英文版》
  • 中国科技核心期刊
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  • 主办单位:浙江大学
  • 主编:
  • 地址:杭州玉古路20号,浙江大学学报《英文版》编辑部
  • 邮编:310027
  • 邮箱:jzus@zju.edu.cn
  • 电话:0571-87952276 87952331
  • 国际标准刊号:ISSN:1673-1581
  • 国内统一刊号:ISSN:33-1356/Q
  • 邮发代号:
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  • 被引量:323