PDF Download

[1]CHEN Yuan-yuan,ZHOU Yun-chao.Protection of Soil Organic Carbon in the Calcite Dolomite Aggregate[J].Research of Soil and Water Conservation,2012,19(06):82-85,89.

Copy

Protection of Soil Organic Carbon in the Calcite Dolomite Aggregate

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 19 Number of periods: 2012 06 Page number: 82-85,89 Column: Public date: 2012-12-20

Title:: Protection of Soil Organic Carbon in the Calcite Dolomite Aggregate

Author(s):: CHEN Yuan-yuan, ZHOU Yun-chao; College of Forestry, Guizhou University, Guiyang 550025, China

Keywords:: soil; soil organic carbon; soil oxidizable carbon; soil aggregate; calcite dolomite; tree forest

CLC:: S153.6⁺2

DOI:: -

Abstract:: In order to study organic carbon protected in aggregates of soil developed from calcite dolomite under forest in karst area, soil samples were collected and wet sieved into five aggregate fractions: >5mm, 5～2mm, 2～1mm, 1～0.5mm, 0.5～0.25mm. After extracted carbohydrate, each fraction aggregate was wet-sieved into 5 fractions again. The contents of soil aggregate, oxidisable soil organic carbon, and soil organic carbon were measured, and the relationship between soil aggregate stability with soil organic carbon and soil oxidisable organic carbon was analyzed. The results showed that aggregates broke down from the large size(>5mm, 5～2mm) to small (2～1mm, 1～0.5mm, 0.5～0.25mm) but soil organic carbon was contained mostly in larger aggregate after the second wet sieving, however, soil organic carbon did not transfer while aggregate was broken. Soil oxidisable organic carbon content decreased in all fractions after the final seiving, but most oxidisable organic carbon was contained in the larger particle (>5mm, 5～2mm), and less in smaller (2～1mm, 1～0.5mm, 0.5～0.25mm). According to the results, it was assumed that soil oxidisable organic carbon was protected by the larger aggregate (>2mm).

References:: [1] Gifford R M, Cheney N P, Noble J C, et al. Australian land use, primary production of vegetation and carbon pools in relation to atmospheric carbon dioxide concentration[J]. Bureau Rural Resources and CSIRO Division of Plant Industry,1990,14(3):157-187.
[2] Gulde S, Chung H, Six J, et al. Soil carbon saturation controls labile and stable carbon pool dynamics[J]. Soil Science Society of America Journal,2007,72(3):605-612.
[3] 马红亮,朱建国,谢祖彬.大气CO₂浓度升高对陆地生态系统土壤固碳的可能影响[J].土壤通报,2008,39(5):1184-1191.
[4] Huggins D R, Clapp C E, Allmaras R R. Carbon dynamics in corn-soybean sequences as estimated from natural ¹³C abundance[J]. Soil Science Society of America Journal,1998,62(1):195-203.
[5] Blair G J, Lefroy R D B, Lisle L. Soil carbon fractions based on their degree of oxidation,and the development of a carbon management index for agricultural systems[J]. Australian Journal of Agricultural Research,1995,46(7):1459-1466.
[6] 方华军,杨学明,张晓平.东北黑土有机碳储量及其对大气的贡献[J].水土保持学报,2003,17(3):9-12.
[7] 李恋卿,潘根兴.太湖地区几种水稻土的有机碳储存及其分布特性[J].科技通报,2000,16(6):421-426.
[8] Chung H, Grove J H, Six J. Indications for soil carbon saturation in a temperate agro ecosystem[J]. Soil Science Society of America Journal, 2008,72(4):1132-1139.
[9] Ashagrie Y, Zech W, Guggenberger G. Soil aggregation and total and particulate organic matter following conversion of native for ests to continuous cultivation in Ethiopia[J]. Soil&Tillage Research,2007,94(1):101-108.
[10] Adesodun J K, Adeyemi E F, Oyegoke C O. Distribution of nutrient elements within water stable aggregates of two tropical agro ecological soils under different land uses[J]. Soil&Tillage Research,2007,92(1):190-197.
[11] 吴建国,张小全,徐德应.六盘山林区几种土地利用方式下土壤活性有机碳的比较[J].植物生态学报,2004,28(5):657-664.
[12] 谭文峰,朱志锋,刘凡.江汉平原不同土地利用方式下土壤团聚体中有机碳的分布与积累特点[J].自然资源学报,2006,21(6):973-979.
[13] 杨长明,欧阳竹.华北平原农业土地利用方式对土壤水稳性团聚体分布特征及其有机碳含量的影响[J]. 土壤,2008,40(1):100-105.
[14] 郭菊花,陈小云,刘满强.不同施肥处理对红壤性水稻土团聚体的分布和有机碳、氮含量的影响[J].土壤, 2007,39(5):787-793.
[15] 徐江兵,李成亮,何园球.不同施肥处理对旱地红壤团聚体中有机碳含量及其组分的影响[J].土壤学报,2007,44(4):675-682.
[16] 蒋雪林.土壤碳水化合物总量的直接测定[J].土壤学进展,1994,22(2):40-44.
[17] 中国科学院南京土壤研究所土壤与环境分析中心.土壤理化分析与剖面[M].北京:中国标准出版社,1996.
[18] 蒋静,周运超,杜光平.石灰岩发育的乔木林下土壤团聚体形成的影响因素[J].中国水土保持,2011(7):47-50.
[19] 侯雪莹,韩晓增.土壤有机无机复合体的研究进展[J].农业系统科学与综合研究,2008,24(1):61-67.
[20] 徐建民,袁可能.我国地带性土壤中有机质氧化稳定性的研究[J].土壤通报,1995,26(1):1-13.

Similar References:

Memo

Last Update: 1900-01-01