CO2 emission in an intensively cultivated loam as affected by long-term application of organic manure and nitrogen fertilizer
文献类型：期刊论文
| 作者 | Ding, Weixin; Meng, Lei; Yin, Yunfeng; Cai, Zucong; Zheng, Xunhua |
| 刊名 | SOIL BIOLOGY & BIOCHEMISTRY
 |
| 出版日期 | 2007-02-01 |
| 卷号 | 39期号:2页码:669-679 |
| 关键词 | N fertilizer organic manure soil heavy fraction soil organic C soil respiration temperature WFPS |
| ISSN号 | 0038-0717 |
| DOI | 10.1016/j.soilbio.2006.09.024 |
| 通讯作者 | Ding, Weixin(wxding@mail.issas.ac.cn) |
| 英文摘要 | A long-term field experiment was conducted to examine the influence of mineral fertilizer and organic manure on the equilibrium dynamics of soil organic C in an intensively cultivated fluvo-aquic soil in the Fengqiu State Key Agro-Ecological Experimental Station (Fengqiu county, Henan province, China) since September 1989. Soil CO2 flux was measured during the maize and wheat growing seasons in 2002-2003 and 2004 to evaluate the response of soil respiration to additions and/or alterations in mineral fertilizer, organic manure and various environmental factors. The study included seven treatments: organic manure (OM), half-organic manure plus half-fertilizer N (NOM), fertilizer NPK (NPK), fertilizer NP (NP), fertilizer NK (NK), fertilizer PK (PK) and control (CK). Organic C in soil and the soil heavy fraction (organo-mineral complex) was increased from 4.47 to 8.61 mg C g(-1) and from 3.32 to 5.68 mg C g(-1), respectively, after the 13 yr application of organic manure. In contrast, organic C and the soil heavy fraction increased in NPK soil to only 5.41 and 4.38 mg C g(-1), respectively. In the CK treatment, these parameters actually decreased from the initial C concentrations (4.47 and 3.32 mg C g-1) to 3.77 and 3.11 mg C g(-1), respectively. Therefore, organic manure efficiently elevated soil organic C. However, only 66% of the increased soil organic C was combined with clay minerals in the OM treatment. Cumulative Soil CO2 emissions from inter-row soil in the OM and NPK treatments were 228 and 188 g C m(-2) during the 2002 maize growing season, 132 and 123 g C m(-2) during the 2002/2003 wheat growing season, and 401 and 346 g C m-2 yr(-1) in 2002-2003, respectively. However, during the 2004 maize growing season, cumulative soil CO2 emissions were as high as 617 and 556 g C m(-2), respectively, due to the contribution of rhizosphere respiration. The addition of organic manure contributed to a 16% increase in Soil CO2 emission in 2002 2003 (compared to NPK), where only 27%, 36% and 24% of applied organic C was released as CO2 during the 2002 and 2004 maize growing seasons and in 2002-2003, respectively. During the 2002/2003 wheat growing season, Soil CO2 flux was significantly affected by soil temperature below 20 degrees C, but by soil moisture (WFPS) during the 2004 maize growing season at soil temperatures above 18 degrees C. Optimum soil WFPS for soil CO2 flux was approximately 70%. When WFPS was below 50%, it no longer had a significant impact on Soil CO2 flux during the 2002 maize growing season. This study indicates the application of organic manure composted with wheat straw may be a preferred strategy for increasing soil organic C and sequestering C in soil. (c) 2006 Elsevier Ltd. All rights reserved. |
| 收录类别 | SCI |
| WOS关键词 | DIFFERENTLY TEXTURED SOILS ; CARBON-DIOXIDE ; MICROBIAL BIOMASS ; PLANT RESIDUE ; RESPIRATION ; DECOMPOSITION ; MOISTURE ; EFFLUX ; MINERALIZATION ; TEMPERATURE |
| WOS研究方向 | Agriculture |
| WOS类目 | Soil Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000243209100030 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2558659 |
| 专题 | 南京土壤研究所 |
| 通讯作者 | Ding, Weixin |
| 作者单位 | 1.Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing 210008, Peoples R China 2.Chinese Acad Sci, Inst Atmospher Phys, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ding, Weixin,Meng, Lei,Yin, Yunfeng,et al. CO2 emission in an intensively cultivated loam as affected by long-term application of organic manure and nitrogen fertilizer[J]. SOIL BIOLOGY & BIOCHEMISTRY,2007,39(2):669-679. |
| APA | Ding, Weixin,Meng, Lei,Yin, Yunfeng,Cai, Zucong,&Zheng, Xunhua.(2007).CO2 emission in an intensively cultivated loam as affected by long-term application of organic manure and nitrogen fertilizer.SOIL BIOLOGY & BIOCHEMISTRY,39(2),669-679. |
| MLA | Ding, Weixin,et al."CO2 emission in an intensively cultivated loam as affected by long-term application of organic manure and nitrogen fertilizer".SOIL BIOLOGY & BIOCHEMISTRY 39.2(2007):669-679. |
入库方式： iSwitch采集
来源：南京土壤研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。