Equilibrium of organic matter in heavy fraction for three long-term experimental field soils in China
文献类型：期刊论文
| 作者 | Yin, YF; Cai, ZC |
| 刊名 | PEDOSPHERE
 |
| 出版日期 | 2006-04-01 |
| 卷号 | 16期号:2页码:177-184 |
| 关键词 | equilibrium value heavy fraction Langmuir equation soil organic matter |
| ISSN号 | 1002-0160 |
| 通讯作者 | Cai, ZC(zccai@issas.ac.cn) |
| 英文摘要 | Considerable evidence that the soil organic matter (OM) level in agricultural soils will gradually over time reach an equilibrium state under certain bioclimatic conditions and for certain cropping systems has been accumulating. Although models or long-term experiments have been used, this research used physical fractionation procedure to attain an soil OM equilibrium value. To obtain soil OM equilibrium values in the heavy fraction, typical soils from three long-term field experiments at Fengqiu and Yingtan State Key Agro-Ecological Experimental Stations in China were studied using a simple density fractionation procedure and employing the Langmuir equation. Results for the fluvo-aquic soil with organic fertilizer treatments indicated that the soil OM equilibrium value in the heavy fraction was twofold more than that in the inorganic treatments; however, for the paddy soil developed on red soil the OM equilibrium value in the heavy fraction for both treatments was almost identical. It suggested that for fluvo-aquic soils the increased potential of OM for the heavy fraction in the long run was larger for the organic than the inorganic fertilizer applications, whereas for paddy soils developed on red soils under the same conditions the present OM content in the heavy fraction was at or close to this equilibrium level for all treatments, and increased potential was very limited. |
| 收录类别 | SCI |
| WOS关键词 | NITROGEN MINERALIZATION ; AGRICULTURAL SOILS ; DENSITY FRACTIONS ; CARBON ; DYNAMICS ; LIGHT ; CULTIVATION ; TURNOVER ; SYSTEMS ; TRENDS |
| WOS研究方向 | Agriculture |
| WOS类目 | Soil Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000236418700006 |
| 出版者 | SCIENCE PRESS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2558588 |
| 专题 | 南京土壤研究所 |
| 通讯作者 | Cai, ZC |
| 作者单位 | Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing 210008, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yin, YF,Cai, ZC. Equilibrium of organic matter in heavy fraction for three long-term experimental field soils in China[J]. PEDOSPHERE,2006,16(2):177-184. |
| APA | Yin, YF,&Cai, ZC.(2006).Equilibrium of organic matter in heavy fraction for three long-term experimental field soils in China.PEDOSPHERE,16(2),177-184. |
| MLA | Yin, YF,et al."Equilibrium of organic matter in heavy fraction for three long-term experimental field soils in China".PEDOSPHERE 16.2(2006):177-184. |
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。