|
|
|
|
|
| Response of Soil Organic Carbon and Its Aggregate Fractions to Long- Term Fertilization in Irrigated Desert Soil of China |
| CHAI Yan-jun, ZENG Xi-bai, E Sheng-zhe, HUANG Tao, CHE Zong-xian, SU Shi-ming , BAI Ling-yu |
1、Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-
Environment, Ministry of Agriculture, Beijing, P.R.China
2、Institute of Soil, Fertilizer and Water-saving Agriculture, Gansu Academy of Agricultural Sciences, Lanzhou 730070, P.R.China |
|
|
|
摘要 Irrigated desert soil samples in the Hexi Corridor of China were collected over a period of 23 years from a site where different fertilization methods had been used. Changes of soil organic carbon (SOC) and its water stable aggregate (WSA) size fractions were studied. The effects of various fertilization methods on the distribution of added organic carbon (OC) in different WSA size fractions were also analyzed. The results showed that the applied fertilizations for 23 years improved SOC concentrations and OC concentrations in all WSA size fractions compared to the non-fertilized treatment (CK). In addition, fertilization obviously increased the OC stocks of <2 mm WSA size fractions compared to the CK. The average OC stock of <0.053 mm WSA fraction was 1.7, 1.6 and 3.2 times higher than those of >2 mm, 0.25-2 mm and 0.053-0.25 mm WSA fractions, respectively. A significant positive correlation was found between soil C gains and OC inputs (r=0.92, P<0.05), indicating that SOC may have not reached the saturation point yet at the site. The C sequestration rate was estimated by 14.02% at the site. The OC stocks in all of the <2 mm WSA fractions increased with the increase of OC input amounts; and the conversion rate of the input fresh OC to the OC stock of <0.053 mm WSA fraction was 1.2 and 2.6 times higher than those of the 0.25-2 mm and 0.053-0.25 mm WSA fractions, respectively. Therefore, the <0.053 mm WSA fraction was the most important component for soil C sequestration in the irrigated desert soil.
Abstract Irrigated desert soil samples in the Hexi Corridor of China were collected over a period of 23 years from a site where different fertilization methods had been used. Changes of soil organic carbon (SOC) and its water stable aggregate (WSA) size fractions were studied. The effects of various fertilization methods on the distribution of added organic carbon (OC) in different WSA size fractions were also analyzed. The results showed that the applied fertilizations for 23 years improved SOC concentrations and OC concentrations in all WSA size fractions compared to the non-fertilized treatment (CK). In addition, fertilization obviously increased the OC stocks of <2 mm WSA size fractions compared to the CK. The average OC stock of <0.053 mm WSA fraction was 1.7, 1.6 and 3.2 times higher than those of >2 mm, 0.25-2 mm and 0.053-0.25 mm WSA fractions, respectively. A significant positive correlation was found between soil C gains and OC inputs (r=0.92, P<0.05), indicating that SOC may have not reached the saturation point yet at the site. The C sequestration rate was estimated by 14.02% at the site. The OC stocks in all of the <2 mm WSA fractions increased with the increase of OC input amounts; and the conversion rate of the input fresh OC to the OC stock of <0.053 mm WSA fraction was 1.2 and 2.6 times higher than those of the 0.25-2 mm and 0.053-0.25 mm WSA fractions, respectively. Therefore, the <0.053 mm WSA fraction was the most important component for soil C sequestration in the irrigated desert soil.
|
|
Received: 15 August 2013
Accepted:
|
| Fund: The authors gratefully acknowledge the Key Technologies R&D Program of China during the 12th Five-Year Plan period (2012BAD05B06) and the National Natural Science Foundation of China (41061032) for financial support. |
|
Corresponding Authors:
ZENG Xi-bai, Tel/Fax: +86-10-82105612, E-mail: zengxibai@caas.cn
|
| About author: CHAI Yan-jun, E-mail: chaiyanjun978@163.com |
Cite this article:
CHAI Yan-jun, ZENG Xi-bai, E Sheng-zhe, HUANG Tao, CHE Zong-xian, SU Shi-ming , BAI Ling-yu.
2014.
Response of Soil Organic Carbon and Its Aggregate Fractions to Long- Term Fertilization in Irrigated Desert Soil of China. Journal of Integrative Agriculture, 13(12): 2758-2767.
|
| Amézketa E. 1999. Soil aggregate stability: A review. Journalof Sustainable Agriculture, 14, 83-151Amos B, Walters D T. 2006. Maize root biomass and netrhizodeposited carbon. Soil Science Society of AmericaJournal, 70, 1489-1503Aoyama M, Angers D A, N’Dayegamiye A, Bissonnette N.1999. Protected organic matter in water-stable aggregatesas affected by mineral fertilizer and manure applications.Canadian Journal of Soil Science, 79, 419-425Blair N, Faulkner R D, Till A R, Sanchez P. 2005.Decomposition of 13C and 15N labelled plant residuematerials in two different soil types and its impact on soilcarbon, nitrogen and aggregate stability, and aggregateformation. Australian Journal of Soil Research, 43, 873-886Bronick C J, Lal R. 2005. Soil structure and management: Areview. Geoderma, 124, 3-22Celik I. 2005. Land-use effects on organic matter and physicalproperties of soil in a southern Mediterranean highland ofTurkey. Soil & Tillage Research, 83, 270-277Chivenge P, Vanlauwe B, Gentile R, Six J. 2011. Organicresource quality influences short-term aggregate dynamicsand soil organic carbon and nitrogen accumulation. SoilBiology and Biochemistry, 43, 657-666Diekow J, Mielniczuk J, Knicker H, Bayer C, Dick D P,Kögel-Knabner I. 2005. Carbon and nitrogen stocks inphysical fractions of a subtropical Acrisol as influencedby long-term no-till cropping systems and N fertilization.Plant and Soil, 268, 319-328Dou S, Wang Q C, Dai X Y. 1991. Effect of soil organismapplies fertilizer on micro-aggregate composing and thedistributing and active of carbon, nitrogen. Journal of JilinAgricultural University, 13, 43-48 (in Chinese)Eswaran H, Reich P F, Kimble J M. 2000. Global carbon stocks.In: Lal R, Kimble J M, Eswaran H, Stewart B A, eds., InGlobal Climate Change and Pedogenic Carbonates. CRCPress, BocaRaton, FL. pp.15-25Franzluebbers A J. 2005. Soil organic carbon sequestration andagricultural greenhouse gas emissions in the southeasternUSA. Soil & Tillage Research, 83, 120-147Gansu Provincial Soil Survey Staff. 1992. Records of GansuSoils. Gansu Scio-technological Publishing House,Lanzhou. (in Chinese)Gee G W, Bauder J W. 1986. Particle-size analysis. In: KluteA, ed., In Methods of Soil Analysis. Part1. Physicaland Mineralogical Methods, Seconded. AgronomyMonographs. No. 9. ASA-SSA, Madison, WI. pp. 383-411Graham M H, Haynes R J, Meyer J H. 2002. Changes in soilchemistry and aggregate stability induced by fertilizerapplications, burning and trash retention on a long-termsugarcane experiment in South Africa. European Journalof Soil Science, 53, 589-598De Gryze S, Bossuyt H, Six J, Van Meirvenne M, GoversG, Merckx R. 2008. Factors controlling aggregation ina minimum and a conventionally tilled undulating field.European Journal of Soil Science, 58, 1017-1026Guo T W, Tan B X. 1998. Establishing 15-ton grain field andsustainable agriculture in the irrigated desert soil region. Acta Agriculturae Boreali-Occidentalis Sinica, 7, 91-96(in Chinese)Helfrich M, Ludwig B, Potthoff M, Flessa H. 2008. Effect oflitter quality and soil fungi on macroaggregate dynamicsand associated partitioning of litter carbon and nitrogen.Soil Biology and Biochemistry, 40, 1823-1835Institute of Soil Science, Chinese Academy of Sciences.1978. Physical and Chemical Analytical Methods of Soil.Shanghai Science Technology Press, Shanghai, China.Lal R. 2004. Soil carbon sequestration impacts on globalclimate change and food security. Science, 304, 1623-1627Li L Q, Pan G X, Zhang X H. 2000. Changes in organic carbonstorage in aggregates of the surface horizon in a degradedPlaudit upon vegetation recovery. Chinese Journal of SoilScience, 31, 193-195 (in Chinese)Noellemeyer E, Frank F, Alvarez C, Morazzo G, QuirogaA. 2008. Carbon contents and aggregation related tosoil physical and biological properties under a land-usesequence in the semiarid region of central Argentina. Soil&Tillage Research, 99, 179-190Palm C A, Gachengo C N, Delve R J, Cadisch G, Giller KE. 2001. Organic inputs for soil fertility management intropical agroecosystems: application of an organic resourcedatabase. Agriculture, Ecosystems and Environment, 83,27-42Pan G X, Zhou P, Li LQ, Zhang X H. 2007. Core issues andresearch progresses of soil science of carbon sequestration.Acta Pedologica Sinica, 44, 328-337(in Chinese)SAS Inst. 1996. SAS Statistics User’s Guide. Release Version6. SAS Inst, Cary, NC.Six J, Elliott E T, Paustian K, Doran J W. 1998. Aggregationand soil organic matter accumulation in cultivated andnative grassland soils. Soil Science Society of AmericaJournal, 62, 1367-1377Six J, Bossuyt H, Degryze S, Denef K. 2004. A history ofresearch on the link between (micro) aggregates, soilbiota, and soil organic matter dynamics. Soil & TillageResearch, 79, 7-31Six J, Carpentier A, van Kessel C, Merckx R, Harris D,Horwath W R, Luscher A. 2001. Impact of elevated CO2on soil organic matter dynamics as related to changes inaggregate turnover and residue quality. Plant and Soil,234, 27-36Soil Survey Staff. 1998. Keys to Soil Taxonomy. 8th ed.Pocahontas Press, Blacks-burg, VA.Tisdall J M, Oades J M. 1982. Organic matter and water-stableaggregates in soils. Journal of Soil Science, 33, 141-163Wang F, Pan G X, Li L Q. 2009. Effects of long-termfertilization on Phenanthrene Contents of original paddysoil and aggregate fractions. Soils, 41, 464-470 (inChinese)Wang F, Tong Y A, Zhang J S, Gao P C, Coffie J N. 2013.Effects of various organic materials on soil aggregatestability and soil microbiological properties on the LoessPlateau of China. Plant, Soil and Environment, 59, 162-168Whalen J K, Chang C. 2002. Macroaggregate characteristicsin cultivated soils after 25 annual manure applications.Soil Science Society of America of Journal, 66, 1637-1647Zhang W J, Xu M G, Wang X J, Huang Q H, Nie J, Li Z Z,Li S L, Hwang W S, Lee B K. 2012. Effects of organicamendments on soil carbon sequestration in paddy fieldsof subtropical China. Journal of Soils and Sediments, 12,457-470Yoder R E. 1936. A direct method of aggregate analysis ofsoils and a study of the physical nature of erosion losses.Journal of American Society of Agronomy, 28, 337-351. |
| No Suggested Reading articles found! |
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
| |
Shared |
|
|
|
|
| |
Discussed |
|
|
|
|
