长期施肥下红壤性水稻土有机碳储量变化特征

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成果类型：

期刊论文

作者：

黄晶;张杨珠;高菊生;张文菊;刘淑军

通讯作者：

Gao, J.-S.

作者机构：

[张文菊] Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences/National Engineering Laboratory for Improving Quality of Arable Land, Beijing, 100081, China

[张杨珠] College of Resources and Environment, Hunan Agricultural University, Changsha, 410128, China

Red Soil Experimental Station of Chinese Academy of Agricultural Sciences in Hengyang/National Observation and Research Station of Farmland Ecosystem in Qiyang, Qiyang, Hunan 426182, China

[高菊生; 刘淑军] Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences/National Engineering Laboratory for Improving Quality of Arable Land, Beijing, 100081, China, Red Soil Experimental Station of Chinese Academy of Agricultural Sciences in Hengyang/National Observation and Research Station of Farmland Ecosystem in Qiyang, Qiyang, Hunan 426182, China

[黄晶] Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences/National Engineering Laboratory for Improving Quality of Arable Land, Beijing, 100081, China, College of Resources and Environment, Hunan Agricultural University, Changsha, 410128, China, Red Soil Experimental Station of Chinese Academy of Agricultural Sciences in Hengyang/National Observation and Research Station of Farmland Ecosystem in Qiyang, Qiyang, Hunan 426182, China

通讯机构：

[Gao, J.-S.] I

Institute of Agricultural Resources and Regional Planning, China

语种：

中文

关键词：

长期施肥;红壤性水稻土;土壤有机碳含量;土壤有机碳储量

关键词(英文)：

Long-term fertilization;Red paddy soil;SOC content;SOC storage

期刊：

应用生态学报

ISSN：

1001-9332

年：

2015

卷：

期：

页码：

3373-3380

DOI：

10.13287/j.1001-9332.20150824.003

基金类别：

公益性行业（农业）科研专项（201103005,201203030）中央级公益性科研院所基本科研业务费专项（2014-9）资助

机构署名：

本校为第一机构

院系归属：

资源环境学院

摘要：

研究了1982—2012年长期不同施肥下红壤性水稻土土壤有机碳含量变化、固碳趋势及外源碳输入对土壤固碳的贡献.结果表明:施肥能提高土壤有机碳含量,连续30年不同施肥后,各施肥处理土壤有机碳含量趋于稳定,有机无机配施的土壤有机碳含量为21.02 ~ 21.24 g?kg~(-1),增加速率为0.41 ~ 0.59 g?kg~(-1)?a~(-1),单施化肥的土壤有机碳含量为15.48 g?kg~(-1).各有机无机肥配施处理土壤的平均有机碳储量为43.61 ~ 48.43 t C?hm~(-2),历年平均土壤有机碳储量显著大于单施化肥处理.土壤固碳速率与年均投入碳量呈显著指数正相关.本试验条件下,每年需要增加外源有机碳为0.12 t C?hm~(-2)才能维持土壤有机碳的平...

摘要(英文)：

The objective of this study was to clarify the changes of soil organic carbon (SOC) content, the saturation capacity of soil carbon sequestration and its cooperation with carbon input (crop source and organic fertilizer source carbon) under long-term (1982-2012) different fertilization in red paddy soil. The results showed that fertilization could increase SOC content. The SOC content of all the fertilization treatments demonstrated a trend of stabilization after applying fertilizer for 30 years. The SOC content in the treatments applying organ...

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