您好，欢迎访问湖北省农业科学院 机构知识库！
湖北省农业科学院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Soil CO2 Emissions and Drivers in Rice-Wheat Rotation Fields Subjected to Different Long-Term Fertilization Practices

文献类型： 外文期刊

作者： Liu, Yi 1 ; Hu, Cheng 4 ; Mohamed, Ibrahim 1 ; Wang, Jing 1 ; Zhang, Guoshi 1 ; Li, Zhiguo 1 ; Chen, Fang 1 ;

作者机构： 1.Chinese Acad Sci China, Wuhan Bot Garden, Lab Aquat Bot & Watershed Ecol, Wuhan 430074, Peoples R China

2.Chinese Acad Sci, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling, Peoples R China

3.Minist Water Resource, Yangling, Peoples R China

4.Hubei Acad Agr Sci, Inst Plant Protect & Soil Fertilizer, Wuhan, Peoples R China

5.Benha Univ, Dept Soil Sci, Fac Agr, Toukh, Kalyoubia, Egypt

关键词： Physicochemical soil properties;Soil CO2 fluxes;Soil enzyme activity;Soil nutrients;Soil organic matter

期刊名称：CLEAN-SOIL AIR WATER （ 影响因子：1.77； 五年影响因子：1.955 ）

ISSN： 1863-0650

年卷期： 2016 年 44 卷 7 期

页码：

收录情况： SCI

摘要： Soil CO2 emissions are key components of global carbon cycling. Hence, knowledge of their drivers is important for estimating, and modifying, carbon storage pools. To extend knowledge of these drivers, results of a long-term (31-year) experiment in a rice-wheat rotation field in subtropical Central China were analyzed to determine effects on soil CO2 flux (F-CO2) of various fertilization practices and related environmental factors including soil organic matter (SOM), microbial biomass carbon (MBC), total nitrogen (TN), total phosphorus (TP), and total potassium (TK) contents; activities of three soil enzymes (acid phosphatase, urease, and catalase); and soil temperature, pH, cation exchange capacity (CEC), bulk density and porosity. The results clearly show that FCO2 was sensitive to changes in soil nutrient conditions under different long-term fertilization practices. Notably, it was significantly higher in plots receiving organic manure applications than in those receiving only chemical fertilizers (N, NP, and NPK) and unfertilized plots. Correlation analysis showed that F-CO2 was significantly correlated with the soil's SOM, TN, TP, and MBC contents, acid phosphatase and urease activities, and several physicochemical soil properties including pH, CEC, bulk density and porosity. However, no significant correlations were observed between F-CO2 and either TK content or catalase activity. The findings suggest that at given temperature and soil moisture contents, variations in soil CO2 emissions associated with the fertilization practices are strongly related to SOM, and the nutrient contents, microbial and enzyme activities, and physicochemical properties of the soil.

  • 相关文献

[1]A Field Study on Effects of Nitrogen Fertilization Modes on Nutrient Uptake, Crop Yield and Soil Biological Properties in Rice-Wheat Rotation System. Guan Guan,Tu Shu-xin,Yang Jun-cheng,Zhang Jian-feng,Yang Li. 2011

作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：湖北省农业科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台