Changes in soil microbial community, enzyme activities and organic matter fractions under long-term straw return in north-central China

文献类型： 外文期刊

第一作者： Zhao, Shicheng

作者： Zhao, Shicheng;Zhou, Wei;Qiu, Shaojun;Huang, Shaowen;He, Ping;He, Ping;Li, Kejiang

作者机构：

关键词： Straw return;Soil microbial community structure;Soil extracellular enzyme;Light fraction organic carbon;Heavy fraction organic carbon

期刊名称：AGRICULTURE ECOSYSTEMS & ENVIRONMENT （ 影响因子：5.567； 五年影响因子：6.064 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： Field nutrients management practices influence soil biological properties and organic matter fractions. A long-term experiment (30-year) was conducted to investigate changes in soil microbial community, enzyme activities and organic carbon fractions under straw return in north-central China. Treatments included no-fertilizer control (CK) and maize straw return at rates of 0 (SO), 2250 (Si), 4500 (S2), and 9000 kg ha(-1) (S3) under combined nitrogen and phosphorus fertilization. All fertilization treatments increased total phospholipid fatty acid (PLFA) and the abundances of Gram-negative (Gm(-)) bacteria and fungi over the CK treatment. The S3 treatment increased total PLFA compared with the SO treatment. The S2 and S3 treatments increased Gm- bacterial abundance by 11.6 and 93%, respectively, and increased fungal abundance by 68.2 and 113.6%, respectively, compared with the SO. Fertilization increased the activities of beta-glucosidase (BG), beta-xylosidase (XYL), and N-acetyl-glucosaminidase (NAG) over the CK. The S2-S3 increased the activities of BG, XYL, and NAG by 10.5-20.7,19.0-32.5, and 21.6-32.8% compared with the SO, respectively. Although the S1 and S3 had lower activities of phenol oxidase than the CK, the activities did not differ among the S0-S3 treatments. The S0-S3 treatments increased the concentration of total organic C (TOC) than the CK, and the S2-S3 increased TOC than the SO. There were no differences in soil light fraction (LF) and the light fraction organic C (LFOC) among the CK, SO, and Si. The LF and LFOC in the S2 increased by 14.7 and 33.9%, respectively, and these values in the S3 increased by 48.0 and 81.3%, respectively, relative to the SO. The S0-S3 treatments increased the heavy fraction organic C (HFOC) over the CK and the HFOC in the S2-S3 increased by 39.2-43.1% compared with the SO. The LFOC/TOC ratio was lower than the HFOC/TOC ratio for each treatment. Overall, low rates of straw return did not affect, while high rates of straw changed microbial community structure and increased the activities of most hydrolytic enzymes and the concentration of LFOC and HFOC under chemical fertilizer application. (C) 2015 Elsevier B.V. All rights reserved.

分类号： S

  • 相关文献

[1]Separation of soil microbial community structure by aggregate size to a large extent under agricultural practices during early pedogenesis of a Mollisol. Li, Na,Qiao, Yun-Fa,Zou, Wen-Xiu,You, Meng-Yang,Han, Xiao-Zeng,Zhang, Bin,Yao, Shui-Hong,Zhang, Bin.

[2]Microbial community structure and functional metabolic diversity are associated with organic carbon availability in an agricultural soil. Li Juan,Li Yan-ting,Yang Xiang-dong,Zhang Jian-jun,Lin Zhi-an,Zhao Bing-qiang. 2015

[3]Contrasting development of soil microbial community structure under no-tilled perennial and tilled cropping during early pedogenesis of a Mollisol. Li, Na,You, Meng-Yang,Qiao, Yun-Fa,Zou, Wen-Xiu,Han, Xiao-Zeng,Zhang, Bin,Yao, Shui-Hong,Zhang, Yue-Ling,Zhang, Bin.

[4]Responses of soil properties, microbial community and crop yields to various rates of nitrogen fertilization in a wheat-maize cropping system in north-central China. Zhao, Shicheng,Qiu, Shaojun,Zhou, Wei,He, Ping,He, Ping,Zhao, Shicheng,Qiu, Shaojun,Zhou, Wei,He, Ping,Cao, Caiyun,Zheng, Chunlian.

[5]Characteristics of methane emission and its relations with soil carbon status and management practices under double rice systems. Guo, LP,He, YJ,Lin, ED,Zhang, GM. 2002

[6]Long-term effects of potassium fertilization and straw return on soil potassium levels and crop yields in north-central China. Zhao, Shicheng,He, Ping,Qiu, Shaojun,Jin, Jiyun,He, Ping,He, Ping,Johnston, Adrian M.,Jia, Liangliang,Liu, Mengchao,Johnston, Adrian M..

[7]Effects of enhancing soil organic carbon sequestration in the topsoil by fertilization on crop productivity and stability: Evidence from long-term experiments with wheat-maize cropping systems in China. Zhang, Xubo,Sun, Nan,Xu, Minggang,Zhang, Xubo,Wu, Lianhai,Zhang, Xubo,Bingham, Ian J.,Li, Zhongfang.

[8]Sensitivity of soil respiration to soil temperature decreased under deep biochar amended soils in temperate croplands. He, Xinhua,He, Xinhua,Du, Zhangliu,Wang, Yiding,Lu, Ning,Zhang, Qingzhong.

[9]Soil CO2 and N2O Emissions in Maize Growing Season Under Different Fertilizer Regimes in an Upland Red Soil Region of South China. Zhang Xu-bo,Sun Nan,Ding Xue-shan,Wang Bo-ren,Li Dong-chu,Wu Lian-hai,Li Jian-wei. 2014

[10]Effects of long-term full straw return on yield and potassium response in wheat-maize rotation. Bai You-lu,Wang Lei,Lu Yan-li,Yang Li-ping,Zhou Li-ping,Ni Lu,Cheng Ming-fang. 2015

[11]The efficiency of long-term straw return to sequester organic carbon in Northeast China's cropland. Wang Shi-chao,Zhao Ya-wen,Wang Jin-zhou,Xu Ming-gang,Lu Chang-ai,Zhu Ping,Cui Xian,Han Xiao-zeng. 2018

[12]Changes in soil organic carbon and its chemical fractions under different tillage practices on loess soils of the Guanzhong Plain in north-west China. Sun, H. Y.,Wang, C. X.,Wang, X. D.,Sun, H. Y.,Wang, C. X.,Rees, R. M.. 2013

[13]Effect of biochar on soil respiration in the maize growing season after 5 years of consecutive application. Lu, Ning,Liu, Xing-Ren,Du, Zhang-Liu,Wang, Yi-Ding,Zhang, Qing-Zhong.

[14]Crop yield and soil organic matter after long-term straw return to soil in China. Wang, Jinzhou,Xu, Minggang,Zhang, Wenju,Lu, Chang'ai,Wang, Jinzhou,Feng, Gu,Wang, Jinzhou,Wang, Xiujun,Wang, Xiujun.

[15]Straw enhanced CO2 and CH4 but decreased N2O emissions from flooded paddy soils: Changes in microbial community compositions. Wang, Ning,Yu, Jian-Guang,Zhao, Ya-Hui,Chang, Zhi-Zhou,Shi, Xiao-Xia,Ma, Lena Q.,Li, Hong-Bo,Ma, Lena Q.. 2018

[16]Simulating the effects of long-term discontinuous and continuous fertilization with straw return on crop yields and soil organic carbon dynamics using the DNDC model. Zhang, Jing,Hu, Kelin,Li, Baoguo,Li, Kejiang,Zheng, Chunlian.

作者其他论文 更多>>

微信小程序