Distribution characteristics of soil aggregates and their associated organic carbon in gravel-mulched land with different cultivation years

doi:10.13287/j.1001-9332.201705.020

Abstract

Abstract: The distribution characteristics of soil aggregates and their organic carbon in gravel-mulched land with different planting years (5, 10, 15, 20 and 30 years) were studied based on a long-term field trial. The results showed that the soil aggregate fraction showed a fluctuation (down-up-down) trend with the decrease of soil aggregate size. The soil aggregates were distributed mainly in the size of ＞5 mm for less than 10 years cultivation, and 0.05-0.25 mm for more than 15 years. The content of aggregates over 0.25 mm (R_0.25) and the mean weight diameter (MWD) of soil aggregates all decreased with the increase of cultivation time. The content of organic carbon within soil aggregates increased with the decrease of soil aggregate size in gravel-mulched land with diffe-rent planting years. However, the content of organic carbon within soil aggregates, contribution rates of different aggregate fractions to soil organic carbon and soil organic carbon storage of aggregate fractions decreased with planting time extension and soil depth. Soil organic carbon in the aggregate sizes over 1 mm was sensitive to long term gravel-mulched field planting. Organic carbon storage of aggregate fractions with 10, 15, 20 and 30 years of planting decreased by 8.0%, 24.4%, 27.5% and 31.4% in the soil depth of 0-10 cm, and 1.4%, 15.8%, 19.4% and 21.8% in the soil depth of 10-20 cm, respectively. In conclusion, the ability of soil carbon sequestration in arid gravel-mulched field was reduced with planting time extension. Therefore, soil fertility of gravel-mulched fields which were cultivated for more than 15 years need to be improved.

Key words: gravel-mulched field, soil organic carbon, soil organic carbon stock, soil aggregate

DU Shao-ping, MA Zhong-ming, XUE Liang. Distribution characteristics of soil aggregates and their associated organic carbon in gravel-mulched land with different cultivation years[J]. Chinese Journal of Applied Ecology, 2017, 28(5): 1619-1625.

References

[1] Verchot LV, Dutaur L, Shepherd KD, et al. Organic matter stabilization in soil aggregates: Understanding the biogeochemical mechanisms that determine the fate of carbon inputs in soils. Geoderma, 2011, 161: 182-193
[2] Liu E-K (刘恩科), Zhao B-Q (赵秉强), Mei X-R (梅旭荣), et al. Distribution of water stable aggregates and organic carbon of arable soils affected by different fertilizer application. Acta Ecologica Sinica (生态学报), 2010, 30(4): 1035-1041 (in Chinese)
[3] Cheng M (程曼), Zhu Q-L (朱秋莲), Liu L (刘雷), et al. Effects of vegetation on soil aggregate stabi-lity and organic carbon sequestration in the Ningxia Loess Hilly Region of northwest China. Acta Ecologica Sinica (生态学报), 2013, 33(9): 2835-2844 (in Chinese)
[4] Higashi T, Mu YH, Komatsuzaki M, et al. Tillage and cover crop species affect soil organic carbon in Andosol, Kanto, Japan. Soil and Tillage Research, 2014, 138: 64-72
[5] Sun H-Y (孙汉印), Ji Q (姬强), Wang Y (王勇), et al. The distribution of water-stable aggregate-associated organic carbon and its oxidation stability under different straw returning modes. Journal of Agro-Environment Science (农业环境科学学报), 2012, 31(2): 369-376 (in Chinese)
[6] Zhang S (张赛), Wang L-C (王龙昌). Effect of conservation tillage on stability and content of organic carbon in soil aggregate. Journal of Soil and Water Conservation (水土保持学报), 2013, 27(4): 263-272 (in Chinese)
[7] Wang Y-J (王亚军), Xie Z-K (谢忠奎), Zhang Z-S (张志山), et al. Effect of rainwater harvesting for supplementary irrigation on watermelon in gravel and plastic mulched field in Gansu. Journal of Desert Research (中国沙漠), 2003, 23(3): 300-304 (in Chinese)
[8] Ge G (戈敢). The development and importance of pebble mulch in China. Journal of Agricultural Sciences (农业科学研究), 2009, 30(4): 52-54 (in Chinese)
[9] Xu Q (许强), Wu H-L (吴宏亮), Kang J-H (康建宏), et al. Study on evolution characteristics of sandy-field in arid region. Agricultural Research in the Arid Areas (干旱地区农业研究), 2009, 27(1): 37-41 (in Chinese)
[10] Pang L (逄蕾), Xiao H-L (肖洪浪), Xie Z-K (谢忠奎), et al. Effect of gravel-sand mulching on soil microbial composition. Journal of Desert Research (中国沙漠), 2012, 32(2): 351-358 (in Chinese)
[11] Ma Z-M (马忠明), Du S-P (杜少平), Xue L (薛亮). Influences of sand-mulching years on soil temperature, water content, and growth and water use efficiency of watermelon. Journal of Desert Research (中国沙漠), 2013, 33(5): 1433-1439 (in Chinese)
[12] Qiu Y (邱阳), Wang Y-J (王亚军), Xie Z-K (谢忠奎), et al. Effects of gravel-sand mulching on soil organic carbon, soil microbial population and soil enzyme activity in cropland. Acta Agriculturae Boreali-Occidentalis Sinica (西北农业学报), 2011, 20(10): 176-180 (in Chinese)
[13] Bao S-D (鲍士旦). Soil and Agricultural Chemistry Analysis. Beijing: China Agriculture Press, 2000 (in Chinese)
[14] Singh RA. Soil Physical Analysis. New Delhi-Ludhiana: Kalyani Publishers, 1980: 52-56
[15] Li W (李玮), Zheng Z-C (郑子成), Li T-X (李廷轩), et al. Distribution characteristics of soil aggregates and its organic carbon in different tea plantation age. Acta Ecologica Sinica (生态学报), 2014, 34(21): 6326-6336 (in Chinese)
[16] Tian S-C (田慎重), Wang Y (王瑜), Li N (李娜), et al. Effects of different tillage and straw systems on soil water-stable aggregate distribution and stability in the North China Plain. Acta Ecologica Sinica (生态学报), 2013, 33(22): 7116-7124 (in Chinese)
[17] Liu Z-L (刘中良), Yu W-T (宇万太). Review of researches on soil aggregate and soil organic carbon. Chinese Journal of Eco-Agriculture (中国生态农业学报), 2011, 19(2): 447-455 (in Chinese)
[18] Wang Z-L (王子龙), Hu F-N (胡斐南), Zhao Y-G (赵勇钢), et al. Distribution characteristics of soil cementing material and its effect on loess macro-aggregate stability. Journal of Soil and Water Conservation (水土保持学报), 2016, 30(5): 331-336 (in Chinese)
[19] Li J (李景), Wu H-J (吴会军), Wu X-P (武雪萍), et al. Impact of long-term conservation tillage on soil aggregate formation and aggregate organic carbon contents. Plant Nutrition and Fertilizer Science (植物营养与肥料学报), 2015, 21(2): 378-386 (in Chinese)
[20] Choudhury SG, Srivastava S, Singh R, et al. Tillage and residue management effects on soil aggregation, organic carbon dynamics and yield attribute in rice-wheat cropping system under reclaimed sodic soil. Soil and Tillage Research, 2014, 136: 76-83
[21] Yang XM, Drury CF, Reynolds WD, et al. Impacts of long-term and recently imposed tillage practices on the vertical distribution of soil organic carbon. Soil and Tillage Research, 2008, 100: 120-124
[22] Li H-X (李辉信), Yuan Y-H (袁颖红), Huang Q-R (黄欠如), et al. Effects of fertilization on soil organic carbon distribution in various aggregates of red paddy soil. Acta Pedologica Sinica (土壤学报), 2006, 43(3): 422-429 (in Chinese)
[23] He S-Q (何淑勤), Zheng Z-C (郑子成), Gong Y-B (宫渊波). Distribution characteristics and soil organic carbon of soil water-stable aggregates with different de-farming patterns. Journal of Soil and Water Conservation (水土保持学报), 2011, 25(5): 229-233 (in Chinese)
[24] Wang X-X (王欣欣), Fu J-R (符建荣), Zou P (邹平), et al. Distribution characteristics of aggregates organic carbon in a paddy soil chronosequence. Chinese Journal of Applied Ecology (应用生态学报), 2013, 24(3): 719-724 (in Chinese)
[25] Zheng ZC, He SQ, Li TX, et al. Effect of land use patterns on stability and distributions of organic carbon in the hilly region of Western Sichuan, China. African Journal of Biotechnology, 2011, 10: 13107-13114
[26] Guo S-L (郭胜利), Wu J-S (吴金水), Dang T-H (党廷辉). Effects of crop rotation and fertilization on aboveground biomass and soil organic C in semi-arid region. Scientia Agricultura Sinica (中国农业科学), 2008, 41(3): 744-751 (in Chinese)
[27] Lyu H-J (吕华军). Preliminary Study on Glomalin Related Soil Protein as Indicator of Greenhouse Soil Fertility under Continuous Cropping. Master Thesis. Nanjing: Nanjing Agricultural University, 2011 (in Chinese)
[28] Bonilla DP, Fuentes JÁ, Martinez CC. Identifying soil organic carbon fractions sensitive to agricultural management practices. Soil and Tillage Research, 2014, 139: 19-22
[29] Moriyama A, Yonemura S, Kawashima S, et al. Environmental are indicators for estimating the potential soil respiration rate in alpine zone. Ecological Indicators, 2013, 32: 245-252
[30] Lu L-X (卢凌霄), Song T-Q (宋同清), Peng W-X (彭晚霞), et al. Profile distribution of soil aggregates organic carbon in primary forests in Karst cluster-peak depression region. Chinese Journal of Applied Ecology (应用生态学报), 2012, 23(5): 1167-1174 (in Chinese)
[31] Liu M-Y (刘敏英), Zheng Z-C (郑子成), Li T-X (李廷轩). Study on the composition and stability of soil aggregates with different tea plantation age. Journal of Tea Science (茶叶科学), 2012, 32(5): 402-410 (in Chinese)