添加秸秆后黑土力学行为特征——秸秆含量的影响

doi:10.13287/j.1001-9332.201709.019

应用生态学报 ›› 2017, Vol. 28 ›› Issue (9): 2932-2938.doi: 10.13287/j.1001-9332.201709.019

添加秸秆后黑土力学行为特征——秸秆含量的影响

林琳¹, 张程程², 王恩姮^1*

¹东北林业大学林学院, 哈尔滨 150040
²东北林业大学土木工程学院, 哈尔滨 150040

收稿日期:2016-10-25 出版日期:2017-09-18 发布日期:2017-09-18
通讯作者: * E-mail: erxin222@163.com
作者简介:林琳, 女, 1992年生, 硕士研究生. 主要从事土壤压实与恢复研究. E-mail: 509528460@qq.com
基金资助:
本文由国家自然科学基金项目(41302222,41271293)资助

Mechanical properties of black soil after straw incorporation: Effect of straw mixing amount.

LIN Lin¹, ZHANG Cheng-cheng², WANG En-heng^1*

¹College of Forestry, Northeast Forestry University, Harbin 150040, China;
²College of Civil Engineering, Northeast Forestry University, Harbin 150040, China.

Received:2016-10-25 Online:2017-09-18 Published:2017-09-18
Contact: * E-mail: erxin222@163.com
Supported by:
This work was supported by the National Natural Science Foundation of China(41302222, 41271293).

摘要/Abstract

摘要： 为探明秸秆还田量对黑土力学特性的影响,以典型黑土区未经开垦(高有机质低黏粒含量)以及耕作40年(低有机质高黏粒含量)的土壤为研究对象,在秸秆长度为15 mm条件下,采用室内固结和三轴剪切相结合的方法,通过压缩指数、回弹指数、黏聚力及内摩擦角的测定与分析,模拟研究了黑土压缩-回弹及抗剪切行为对不同小麦秸秆还田比例(0%、25%、50%、75%、100%)的响应规律.结果表明: 添加秸秆后黑土力学性能明显改善,以开垦多年有机质含量低的黑土改善效果更为显著.秸秆全量还田时,最不易被压缩且压实后恢复能力最强;秸秆50%还田时,土体抗剪强度最大;当秸秆还田比例为50%～100%时,黑土抗压与抗蚀效果较好.

Abstract: Aiming to explore how mixing amount of chopped straw affects mechanical properties of black soil, in our study, two typical black soils with no tillage (high organic matter and low clay content) and with tillage for 40 years (low organic matter and high clay content) were chosen as subject samples. With the length of the chopped straw being 15 mm according to the pretrial results, compression-rebound and shearing behavior of black soil with different proportions of straw returning (0%, 25%, 50%, 75%, 100%) were determined by calculating and analyzing the compression index, rebound index, cohesion and internal friction with the methods of indoor oedometer test and triaxial test. Results showed that the mechanical properties of black soil improved after incorporation with straw, and soil with low organic matter content significantly responded to the change of straw mixing amount. The black soil showed the strongest resistance to compression and the strongest recovery capacity after compaction when the proportion of straw returning was 100%. However, shear strength of the black soil was greatest when the proportion of straw returning was 50%. In conclusion, black soil has a better potential to resist compression and erosion especially when the ratio of straw returning was 50%-100%.

林琳, 张程程, 王恩姮. 添加秸秆后黑土力学行为特征——秸秆含量的影响[J]. 应用生态学报, 2017, 28(9): 2932-2938.

LIN Lin, ZHANG Cheng-cheng, WANG En-heng. Mechanical properties of black soil after straw incorporation: Effect of straw mixing amount.[J]. Chinese Journal of Applied Ecology, 2017, 28(9): 2932-2938.

参考文献

[1] Qiang X-C (强学彩), Yuan H-L (袁红莉), Gao W-S (高旺盛). Effect of crop-residue incorporation on soil CO₂ emission and soil microbial biomass. Chinese Journal of Applied Ecology (应用生态学报), 2004, 25(3): 469-472 (in Chinese)
[2] Witt C, Cassman KG, Olk DC, et al. Crop rotation and residue management effects on carbon sequestration, nitrogen cycling and productivity of irrigated rice systems. Plant and Soil, 2000, 225: 263-278
[3] Yang Y-A (杨玉爱). Perspectives of organic fertilizer research in China. Acta Pedologica Sinica (土壤学报), 1996, 33(4): 414-422 (in Chinese)
[4] Liang W (梁卫), Yuan J-C (袁静超), Zhang H-X (张洪喜), et al. Research progress on mechanism and related technology of corn straw returning in Northeast China. Journal of Northeast Agricultural Sciences (东北农业科学), 2016, 41(2): 44-49 (in Chinese)
[5] Guo L-J (郭梨锦), Cao C-G (曹凑贵), Zhang Z-S (张枝盛), et al. Short-term effects of tillage practices and wheat-straw returned to rice fields on topsoil microbial community structure and microbial diversity in Central China. Journal of Agro-Environment Science (农业环境科学学报), 2013, 32(8): 1577-1584 (in Chinese)
[6] Han X-Z (韩新忠), Zhu L-Q (朱利群), Yang M-F (杨敏芳), et al. Effects of different amount of wheat straw returning on rice growth, soil microbial biomass and enzyme activity. Journal of Agro-Environment Science (农业环境科学学报), 2012, 31(11): 2192-2199 (in Chinese)
[7] Wang B-W (王丙文), Chi S-J (迟淑筠), Tian S-Z (田慎重), et al. Effects of different maize straw-returning modes on the soil respiration in a winter wheat field. Chinese Journal of Applied Ecology (应用生态学报), 2013, 24(5): 1374-1380 (in Chinese)
[8] Zhang Y-C (张永春), Wang J-D (汪吉东), Nie G-S (聂国书), et al. Effect of mechanized straw application on crop yield and soil labile carbon content. Jiangsu Journal of Agricultural Science (江苏农业学报), 2008, 24(6): 833-838 (in Chinese)
[9] Wang R-F (王如芳), Zhang J-W (张吉旺), Dong S-T (董树亭), et al. Present situation of maize straw resource utilization and its effect in main maize production regions of China. Chinese Journal of Applied Ecology (应用生态学报), 2011, 22(6): 1504-1510 (in Chinese)
[10] Chen D-L (陈冬林), Yi Z-X (易镇邪), Zhou W-X (周文新), et al. Effects of straw return on soil nutrients and microorganisms in late rice under different soil tillage systems. Acta Scientiae Circumstantiae (环境科学学报), 2010, 30(8): 1722-1728 (in Chinese)
[11] Qu J-L (璩继立), Li B-B (李贝贝), Li C-C (李陈财), et al. Strength experimental study of palm reinforced Shanghai clay. Rock and Soil Mechanics (岩土力学), 2014, 35(S2): 142-148 (in Chinese)
[12] Wang P (王沛), Chai S-X (柴寿喜), Wang X-Y (王晓燕), et al. Analysis of effect factors of heavy compaction test for wheat straw-reinforced saline soil. Rock and Soil Mechanics (岩土力学), 2011, 32(2): 448-452 (in Chinese)
[13] Wei L (魏丽), Chai S-X (柴寿喜), Cai H-Z (蔡宏洲), et al. Triaxial shear strength and deviatoric stress-strain of saline soils reinforced with wheat straws. China Civil Engineering Journal (土木工程学报), 2012, 45(1): 109-114 (in Chinese)
[14] Wei L (魏丽), Chai S-X (柴寿喜), Cai H-Z (蔡宏洲), et al. Physical and mechanical properties of wheat straw and unconfined compressive strength of reinforced in shore saline soil with wheat straw. China Civil Engineering Journal (土木工程学报), 2010, 43(3): 93-98 (in Chinese)
[15] Wen L-L (温磊磊), Zheng F-L (郑粉莉), Shen H-O (沈海鸥), et al. Characteristics of soil aggregate loss in croplands in the typical black soil region of Northeast China. Acta Pedologica Sinica (土壤学报), 2015, 52(3): 489-498 (in Chinese)
[16] Wang E-H (王恩姮), Chai Y-F (柴亚凡), Chen X-W (陈祥伟). Effects of heavy machinery operation on the structural characters of cultivated soils in black soil region of Northeast China. Chinese Journal of Applied Ecology (应用生态学报), 2008, 19(2): 351-356 (in Chinese)
[17] Liu X-T (刘兴土), Yan B-X (阎百兴). Soil and water loss and food security in black soil region of Northeast China. Soil and Water Conservation in China (中国水土保持), 2009(1): 17-19 (in Chinese)
[18] Wang E-H (王恩姮), Zhao Y-S (赵雨森), Chen X-W (陈祥伟). Effect of antecedent moisture content on soil structure compacted by machinery. Journal of Soil and Water Conservation (水土保持学报), 2009, 23(1): 159-163 (in Chinese)
[19] Doring TF, Brandt M, Hess J, et al. Effects of straw mulch on soil nitrate dynamics, weeds, yield and soil erosion in organically grown potatoes. Field Crops Research, 2005, 94: 238-249
[20] Xu X-H (许晓鸿), Sui Y-Y (隋媛媛), Zhang Y (张瑜), et al. Effects of different tillages on the soil and water conservation benefits in Northeast black soil area of China. Science of Soil and Water Conservation (中国水土保持科学), 2013, 11(3): 12-16 (in Chinese)
[21] Lin L (林琳), Zhang C-C (张程程), Wang E-H (王恩姮). Effect of chopped straw length on mechanical properties of black soil. Journal of Nanjing Forestry University ( Nature Science)(南京林业大学学报·自然科学版), 2017, 41(5): 19-25 (in Chinese)
[22] Ministry of Transport of the People’s Republic of China (中华人民共和国交通部). Test Method of Soils for Highway Engineering: JTG E40-2007. Beijing: China Standards Press, 1999: 164-233 (in Chinese)
[23] Yuan J-Y (袁聚云). Geotechnical Test and in situ Test. Shanghai: Tongji University Press, 2004: 72-77 (in Chinese)
[24] Qu J-L (璩继立), Yu H-N (俞汉宁), Jiang H-Y (江海洋), et al. Comparison of unconfined compressive strength of soil reinforced by palm fiber or wheat straw fiber. Chinese Journal of Underground Space and Engineering (地下空间与工程学报), 2015, 11(5): 1216-1220 (in Chinese)
[25] Blanco CH, Lal R. Soil structure and organic carbon relationships following 10 years of wheat straw management in no-till. Soil & Tillage Research, 2007, 95: 240-254
[26] Yu P (余沛), Chai S-X (柴寿喜), Wang X-Y (王晓燕), et al. Reinforcement effect and engineering application problems of littoral saline soil reinforced with wheat straw. Journal of Tianjin Institute of Urban Construction (天津城市建设学院学报), 2010, 16(3): 161-166 (in Chinese)
[27] Lin L (林琳), Han S-J (韩少杰), Wang E-H (王恩姮). Effect of organic matter and clay content on compression-rebound characteristics of black soil. Acta Pedologica Sinica (土壤学报), 2016, 53(5): 1138-1147 (in Chinese)
[28] Wang P (王沛), Chai S-X (柴寿喜), Zhong X-M (仲晓梅), et al. Light compaction test of saline soil reinforced with wheat straw and compressive property of compacted specimen. Journal of Yangtze River Scientific Research Institute (长江科学院院报), 2012, 29(5): 26-31 (in Chinese)
[29] Yang G-L (杨果林). Research progress on reinforced earth. Mechanics in Engineering (力学与实践), 2002, 24(1): 9-17 (in Chinese)
[30] Zhang R-M (张瑞敏), Wang X-Y (王晓燕), Chai S-X (柴寿喜). Unconfined compressive strength comparison between saline soils reinforced with rice straw and with wheat straw. Journal of Tianjin Institute of Urban Construction (天津城市建设学院学报), 2011, 17(4): 232-235 (in Chinese)
[31] Qu J-L (璩继立), Liu B-S (刘宝石), Li C-C (李陈财). Unconfined compressive strength of Shanghai cohesive soils reinforced with palm and wheat straws. Soil Engineering and Foundation (土工基础), 2013, 27(6): 98-101 (in Chinese)

添加秸秆后黑土力学行为特征——秸秆含量的影响

Mechanical properties of black soil after straw incorporation: Effect of straw mixing amount.

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