Impact of soil management on organic carbon content and aggregate stability
文献类型：期刊论文
| 作者 | Li, Haibo; Han, Xiaozeng; Wang, Feng; Qiao, Yunfa; Xing, Baoshan |
| 刊名 | Communications in soil science and plant analysis
 |
| 出版日期 | 2007 |
| 卷号 | 38期号:13-14页码:1673-1690 |
| 关键词 | Black soil Density fractions Soc Soil management Water-stable aggregate |
| ISSN号 | 0010-3624 |
| DOI | 10.1080/00103620701435456 |
| 通讯作者 | Xing, baoshan(bx@pssci.umass.edu) |
| 英文摘要 | Soil cultivation influences organic carbon storage and soil structures. to evaluate the impact of different soil-management practices on soil organic carbon (soc) pools and aggregate stability in black soils, soc in whole soil, various sizeaggregates, and density-separated fractions from three long-term experiments (20 years) was examined. the three soil-management systems were grassland (gl), bare land (bl), and croplands. the croplands had two treatments: nitrogen and phosphorus fertilizer application (np) and np together with organic manure (npm). the soc in the 0- to 10-cm layer decreased in the order npm > gl > np > bl and also declined with the soil depth. the soc of gl increased by 9.7% as compared to np after 20 years of natural vegetation restoration. the soc of npm increased by 11% over np after 13 years of organic manure application. the percentages of water-stable aggregate (> 0.25 mm) (wsa(> 0.25mm)) decreased in the order gl > bl > npm > np in the top 0- to 20-cm horizon. wsa(> 2mm) the most important fraction for carbon (c) storage in gl and npm, accounted for 33 and 45% of the whole soil for gl in the depths of 0- 10 and 10-20 em, respectively, and 25 and 18% for npm in the same soil layers. a significant positive correlation was found between the c stored in wsa(> 2mm) and total soc (r = 0.8 1, p < 0.05) and between the mean weight diameters (mwd) of aggregates and total soc (r = 0.78, p < 0.05). water-stable aggregate(0.25-2mm) was the largest fraction of wsa(> 0.25) , ranging from 54 to 72% for the 0- to10-cm layer and 46 to 71 % for the 10- to 20-cm layer; thus these aggregates would play a major role in soil sustainability as well as the resistance to soil erosion. the organic carbon (oc) of heavy fraction (hf) accounted for 94-99% of the soc in the wsa(0.25-2mm), whereas free particulate organic matter (fpom) and occluded particulate organic matter (opom) contributed a minor fraction of the oc in the wsa(0.25-2mm), suggesting that c sequestration in hf could enhance the stability of aggregates and c pools in black soil. |
| WOS关键词 | PARTICLE-SIZE FRACTIONS ; LAND-USE ; PHENANTHRENE SORPTION ; HEILONGJIANG PROVINCE ; DENSITY FRACTIONS ; HUMIC ACIDS ; BLACK SOIL ; MATTER ; DYNAMICS ; CHINA |
| WOS研究方向 | Agriculture ; Plant Sciences ; Chemistry |
| WOS类目 | Agronomy ; Plant Sciences ; Chemistry, Analytical ; Soil Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000248376600001 |
| 出版者 | TAYLOR & FRANCIS INC |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2382118 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Xing, Baoshan |
| 作者单位 | 1.Chinese Acad Sci, Natl Field Res Station Agroecosyst Hailun, NE Inst Geog & Agroecol, Harbin, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing, Peoples R China 3.Univ Massachusetts, Dept Plant Soil & Insect Sci, Amherst, MA 01003 USA |
| 推荐引用方式 GB/T 7714 | Li, Haibo,Han, Xiaozeng,Wang, Feng,et al. Impact of soil management on organic carbon content and aggregate stability[J]. Communications in soil science and plant analysis,2007,38(13-14):1673-1690. |
| APA | Li, Haibo,Han, Xiaozeng,Wang, Feng,Qiao, Yunfa,&Xing, Baoshan.(2007).Impact of soil management on organic carbon content and aggregate stability.Communications in soil science and plant analysis,38(13-14),1673-1690. |
| MLA | Li, Haibo,et al."Impact of soil management on organic carbon content and aggregate stability".Communications in soil science and plant analysis 38.13-14(2007):1673-1690. |
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来源：中国科学院大学
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