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Effects of long-term organic fertilization on soil microbiologic characteristics,yield and sustainable production of winter wheat

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Journal of Integrative Agriculture 2018年第1期17卷 210-219页

作者： LI Chun-xi ma shou-chen SHAO Yun ma shou-tian ZHANG Ling-ling College of Life Science Henan Normal University Field Scientific Observation and Research Base of Land Use Ministry of Land and Resources/Henan Polytechnic University

We investigated the soil microbiologic characteristics, and the yield and sustainable production of winter wheat, by conducting a long-term fertilization experiment. A single application of N, P and K （NPK） fertilizer was taken as the control （CK） and three organic fertilization treatments were used： NPK fertilizer＋pig manure （T1）, NPK fertilizer＋straw return （T2）, NPK fertilizer＋pig manure＋straw return （T3）. The results showed that all three organic fertilization treatments （T1, T2 and T3） significantly increased both soil total N （STN） and soil organic carbon （SOC） from 2008 onwards. In 2016, the SOC content and soil C/N ratios for T1, T2 and T3 were significantly higher than those for CK. The three organic fertilization treatments increased soil microbial activity. In 2016, the activity of urease （sucrase） and the soil respiration rate （SRS） for T1, T2 and T3 were significantly higher than those under CK. The organic fertilization treatments also increased the content of soil microbial biomass carbon （SMBC） and microbial biomass nitrogen （SMBN）, the SMBC/SMBN ratio and the microbial quotient （qMB）. The yield for T1, T2 and T3 was significantly higher than that of CK, respectively. Over the nine years of the investigation, the average yield increased by 9.9, 13.2 and 17.4% for T1, T2 and T3, respectively, compared to the initial yield for each treatment, whereas the average yield of CK over the same period was reduced by 6.5%. T1, T2, and T3 lowered the coefficient of variation （CV） of wheat yield and increased the sustainable yield index （SYI）. Wheat grain yield was significantly positively correlated with each of the soil microbial properties （P〈0.01）. These results showed that the long-term application of combined organic and chemical fertilizers can stabilize crop yield and make it more sustainable by improving the properties of the soil.

关键词： winter wheat long-term organic fertilization soil microbial features yield stability yield sustainability

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信迪利单抗、贝伐珠单抗联合肝动脉化疗栓塞术在中晚期肝癌患者中的临床应用

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中国现代医学杂志 2024年第6期34卷 86-91页

作者：惠锋马守成裴霞霞庆阳市中医医院肿瘤科甘肃庆阳745000 兰州大学第一附属医院肿瘤内科甘肃兰州730000 兰州大学第二附属医院肿瘤内科甘肃兰州730000

目的探究信迪利单抗、贝伐珠单抗联合肝动脉化疗栓塞术(TACE)治疗中晚期肝癌患者的临床疗效。方法选取2018年12月—2019年12月庆阳市中医医院收治的中晚期肝癌患者84例,采用随机数字表法分为研究组和对照组,每组42例。所有受试者接受TAC... 详细信息

目的探究信迪利单抗、贝伐珠单抗联合肝动脉化疗栓塞术(TACE)治疗中晚期肝癌患者的临床疗效。方法选取2018年12月—2019年12月庆阳市中医医院收治的中晚期肝癌患者84例,采用随机数字表法分为研究组和对照组,每组42例。所有受试者接受TACE治疗,对照组采用贝伐珠单抗治疗,研究组在对照组基础上联合信迪利单抗治疗。治疗3个月后,评估两组临床疗效、肿瘤标志物[甲胎蛋白(AFP)、癌胚抗原(CEA)、糖类抗原199(CA199)]、免疫指标[CD3^(+)、CD4^(+)/CD8^(+)、自然杀伤细胞(NK)]及药物不良反应。随访3年,记录患者无进展生存期(PFS)和总生存期(OS)。结果研究组客观缓解率为83.33%,高于对照组的61.90%(P0.05)。研究组治疗前后AFP、CEA、CA199、CD3^(+)、CD4^(+)/CD8^(+)、NK的差值均高于对照组(P0.05)。随访3年,研究组死亡23例,中位PFS 14个月,中位OS 23个月,3年总生存率为42.50%;对照组死亡26例,中位PFS 10个月,中位OS 20个月,3年总生存率为31.58%。研究组PFS、OS优于对照组(P<0.05)。结论信迪利单抗、贝伐珠单抗联合TACE治疗中晚期肝癌,可有效调节患者的肿瘤标志物和免疫因子水平,延长患者的生存时间,且安全性良好。

关键词：中晚期肝癌化疗栓塞术信迪利单抗贝伐珠单抗

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针刺联合刺血及清瘟泄热汤对新型冠状病毒感染轻中型患者临床疗效观察

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针刺研究 2024年第8期49卷 845-850页

作者：姜天鑫王保国杨琪琪柳雯马守亮李飞杨骏安徽中医药大学第二附属医院合肥230061 安徽中医药大学合肥230000 蚌埠医学院第一附属医院安徽蚌埠233000 安徽中医药大学第一附属医院合肥230031

目的:观察针刺联合刺血及中药清瘟泄热汤对轻中型新型冠状病毒(COVID-19)感染患者的临床疗效及安全性。方法:将2022年12月至2023年2月收治的100例COVID-19轻中型患者,按照1∶1比例随机分为对照组和观察组,每组50例。对照组予以中药清瘟... 详细信息

目的:观察针刺联合刺血及中药清瘟泄热汤对轻中型新型冠状病毒(COVID-19)感染患者的临床疗效及安全性。方法:将2022年12月至2023年2月收治的100例COVID-19轻中型患者,按照1∶1比例随机分为对照组和观察组,每组50例。对照组予以中药清瘟泄热汤口服,连续服用6 d。观察组在对照组基础上加用针刺联合刺血治疗,针刺每日1次,每次30 min,连续治疗6 d;刺血隔日1次,治疗3次。治疗前和治疗结束当日,记录患者的中医证候评分和肺部CT评分,采用ELISA法检测患者血清C反应蛋白(CRP)、白细胞介素6(IL-6)及肿瘤坏死因子α(TNF-α)水平,采用汉密尔顿抑郁量表(HAMD)及汉密尔顿焦虑量表(HAma)评价患者抑郁焦虑水平,并评定两组治疗的安全性。结果:与本组治疗前比较,治疗后对照组患者在发热、干咳、咽痛和中医证候评分总分方面有所改善(Pma和HAMD评分、血清CRP和IL-6含量均降低(P<0.01),观察组患者血清TNF-α含量降低(P<0.01)。治疗后观察组各项指标的改善均优于对照组(P<0.01,P<0.05)。两组患者均未出现不良反应。结论:针刺联合刺血及口服清瘟泄热汤治疗轻中型COVID-19感染,可明显改善患者临床症状,缓解肺部炎性损伤,降低炎性因子含量,减轻焦虑和抑郁情绪,且无不良反应发生。

关键词：新型冠状病毒感染针刺刺血清瘟泄热汤

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Ethylene Signaling in Rice and Arabidopsis： Conserved and Diverged Aspects

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Molecular Plant 2015年第4期8卷 495-505页

作者： Chao Yang Xiang Lu Biao ma shou-Yi Chen Jin-Song Zhang State Key Lab of Plant Genomics Institute of Genetics and Developmental Biology Chinese Academy of Sciences Beijing 100101 China

Ethylene as a gas phytohormone plays significant roles in the whole life cycle of plants, ranging from growth and development to stress responses. A linear ethylene signaling pathway has been established in the dicotyledonous model plant Arabidopsis. However, the ethylene signaling mechanism in monocotyledonous plants such as rice is largely unclear. In this review, We compare the ethylene response phenotypes of dark-grown seedlings of Arabidopsis, rice, and other monocotyledonous plants （maize, wheat, sorghum, and Brachypodium distachyon） and pinpoint that rice has a distinct phenotype of root inhibition but coleoptile promotion in etiolated seedlings upon ethylene treatment. We further summarize the homologous genes of Arabidopsis ethylene signaling components in these monocotyledonous plants and discuss recent progress. Although conserved in most aspects, ethylene signaling in rice has evolved new features compared with that in Arabidopsis. These analyses provide novel insights into the understanding of ethylene signaling in the dicotyledonous Arabidopsis and monocotyledonous plants, particularly rice. Further characterization of rice ethylene-responsive mutants and their corresponding genes will help us better understand the whole picture of ethylene signaling mechanisms in plants.

关键词： ethylene response signaling Arabidopsis rice monocotyledonous plants crosstalk

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Simultaneous optimization of transit network and public bicycle station network

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Journal of Central South University 2015年第4期22卷 1574-1584页

作者：刘洋朱宁马寿峰 Institute of Systems Engineering Tianjin University

The traditional manner to design public transportation system is to sequentially design the transit network and public bicycle network. A new public transportation system design problem that simultaneously considers both bus network design and public bicycle network design is proposed. The chemical reaction optimization(CRO) is designed to solve the problem. A shortcoming of CRO is that, when the two-molecule collisions take place, the molecules are randomly picked from the ***, we improve CRO by employing different mating strategies. The computational results confirm the benefits of the mating strategies. Numerical experiments are conducted on the Sioux-Falls network. A comparison with the traditional sequential modeling framework indicates that the proposed approach has a better performance and is more robust. The practical applicability of the approach is proved by employing a real size network.

关键词： public transportation system transit route design bicycle sharing system chemical reaction optimization mating strategy

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Influence of pore pressure on tensile fracture growth in rocks： a new explanation based on numerical testing

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Frontiers of Earth Science 2015年第3期9卷 412-426页

作者： shou ma Jianchun GUO Lianchong LI Leslie George THAM Yingjie XIA Chun'an TANG State Key Laboratory of Oil and Gas Geology and Exploitation Southwest Petroleum University Chengdu 610500 China SINOPEC Shengli Oilfield Company Dongying 257000 China School of Civil Engineering Dalian University of Technology Dalian 116024 China Department of Civil Engineering The University of Hong Kong Hong Kong China

The diffusion of pore fluid pressures may create both spatial and temporal effective stress gradients that influence or control the development and evolution of fractures within rock masses. To better understand the controls on fracturing behavior, numerical simulations are performed using a progressive fracture modeling approach that shares many of the same natural kinematic features in rocks, such as fracture growth, nucleation, and termination. First, the pinch-off breaking test is numerically performed to investigate the tensile failure of a rock specimen in a uniform pore pressure field. In this numerical simulation, both mechanical and hydrological properties of a suite of rocks are measured under simulated laboratory conditions. The complete tensional failure process of the rock specimen under pore pressure was reproduced. Second, a double-notched specimen is numerically extended to investigate how the water flow direction or pore pressure gradient influences the fracture growth. An exhaustive sensitivity study is conducted that examines the effects of varying both hydrological and mechanical boundary conditions. The simulation results indicate that local fluid pressure gradients strongly influence the state of stress in the solids and, thereby, fracture growth. Fracture and strength behavior is influenced not only by the pore pressure magnitude on a local scale around the fracture tip, but also by the orientation and distribution of pore pressure gradients on a global scale. Increasing the fracture growth rate increases the local model permeability and decreases the sample strength. The results of this study may provide useful information concerning the degree of hydrological and mechanical coupling action under geologic conditions.

关键词： pore pressure effective stress heterogeneous numerical simulation fracture growth rock

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Residue management induced changes in soil organic carbon and total nitrogen under different tillage practices in the North China Plain

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Journal of Integrative Agriculture 2019年第6期18卷 1337-1347页

作者： PU Chao KAN Zheng-rong LIU Peng ma shou-tian QI Jian-ying ZHAO Xin ZHANG Hai-lin College of Agronomy and Biotechnology China Agricultural University/Key Laboratory of Farming SystemMinistry of Agriculture

Crop residue retention has been considered a practicable strategy to improve soil organic carbon(SOC)and total nitrogen(TN),but the effectiveness of residue retention might be different under varied tillage *** evaluate the effects of residue management on the distribution and stocks of SOC and TN under different tillage practices,a bifactorial experiment with three levels for tillage practices(no-tillage,rotary tillage,and conventional tillage)and two levels for residue managements(residue retention and residue removal)was conducted in the North China Plain(NCP).Results showed that after a short experimental duration(3–4 years),concentrations of SOC and TN in the 0–10 cm layer were higher under no-tillage than under conventional tillage,no matter whether crop residues were retained or *** retention increased SOC and TN concentrations in the upper layers of soil to some degree for all tillage practices,as compared with residue removal,with the greatest increment of SOC concentration occurred in the 0–10 cm layer under rotary tillage,but in the 10–30 cm layer under conventional *** stocks of SOC in the 0–50 cm depth increased from 49.89 Mg ha–1 with residue removal to 53.03 Mg ha–1 with residue ***,no-tillage did not increase SOC stock to a depth of 50 cm relative to conventional tillage,and increased only by 5.35%as compared with rotary ***,residue retention may contribute more towards SOC sequestration than ***,the combination between residue retention and no-tillage has the greatest advantage in enhancing SOC and TN in the NCP region.

关键词： no-tillage residue retention residue removal stratification ratio SOC stock total nitrogen stock

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基于新型粒子群算法的泵送射孔井口压力预测方法研究

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测井技术 2024年第3期48卷 395-401页

作者：刘明明宋智勇马收魏玉华庄欢乐北京科技大学土木与资源工程学院北京100083 中国石化华东石油工程有限公司华美孚泰公司北京100101

泵送射孔施工广泛应用于页岩气储层水力压裂技术中,但目前缺少有关泵送射孔井口压力计算的研究。基于间隙流的伯努利方程,提出了泵送摩阻模型,结合沿程摩阻和射孔摩阻建立泵送射孔井口压力数学模型,采用新型粒子群算法与最小二乘法,建... 详细信息

泵送射孔施工广泛应用于页岩气储层水力压裂技术中,但目前缺少有关泵送射孔井口压力计算的研究。基于间隙流的伯努利方程,提出了泵送摩阻模型,结合沿程摩阻和射孔摩阻建立泵送射孔井口压力数学模型,采用新型粒子群算法与最小二乘法,建立基于射孔炮眼特征及裂缝压力的泵送射孔井口压力自动拟合方法,并通过分析某井连续4段泵送射孔施工数据进行方法验证。研究发现,提出的井口压力历史拟合方法的拟合均方误差为1.29,摩阻模型计算得到泵送射孔时炮眼摩阻、沿程摩阻与泵送摩阻比例约为17∶3∶1;泵送射孔与压裂施工结束时间间隔长时,裂缝压力、流量系数及炮眼开启数量降低,炮眼摩阻、泵送压力增加。提出的方法可以有效预测泵送射孔时的井口压力,同时泵送射孔与压裂施工间隔时间长时,井下裂缝已闭合,而时间间隔短时井下裂缝仍然开启。因此,为避免射孔泵送过程中,闭合裂缝突然张开导致的压力突降,推荐压裂后立即进行泵送射孔施工。建立的泵送射孔井口压力模型可以为泵送施工提供更准确的压力预测,对指导泵送射孔施工具有重要意义。

关键词：泵送射孔井口压力粒子群算法压力预测页岩气储层

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Effects of Root Pruning on Non-Hydraulic Root-Sourced Signal, Drought Tolerance and Water Use Efficiency of Winter Wheat

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Journal of Integrative Agriculture 2013年第6期12卷 989-998页

作者： ma shou-chen LI Feng-min YANG Shen-jiao LI Chun-xi XU Bing-cheng ZHANG Xu-cheng State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau Ministry of Water Resources/Institute of Soil and Water Conservation Chinese Academy of Sciences School of Surveying and Land Information Engineering Henan Polytechnic University Key Laboratory of Efficient Utilization of Water in Dry Farming Gansu Province College of Life Science Henan Normal University

Two pot experiments were conducted to study the effects of root pruning at the stem elongation stage on non-hydraulic root-sourced signals （nHRS）, drought tolerance and water use efficiency of winter wheat （Triticum aestivum）. The root pruning significantly reduced the root weight of wheat, but had no effect on root/shoot ratio at the two tested stages. At booting stage, specific root respiration of root pruned plants was significantly higher than those with intact roots （1.06 and 0.94 mmol g-1 s-1, respectively）. The soil water content （SWC） at which nHRS for root pruned plants appeared was higher and terminated lower than for intact root plants, the threshold range of nHRS was markedly greater for root pruned plants （61.1-44.6% field water capacity） than for intact root plants （57.9-46.1% field water capacity）. At flowering stage, while there was no significant difference in specific root respiration. The SWCs at which nHRS appeared and terminated were both higher for root pruned plants than for intact root plants. The values of chlorophyll fluorescence parameters, i.e., the effective photosystem II quantum yield （F PS II ）, the maximum photochemical efficiency of PS II （F v /F m ）, coefficient of photochemical quenching （qP）, and coefficient of non-photochemical quenching （NPQ）, in root pruned plants were significantly higher than in intact root plants, 7 d after withholding of water. Root pruned plants had significantly higher water use efficiency （WUE） than intact root plants in well-watered and medium drought soil, but not in severe drought condition. In addition, root pruning had no significant effect on grain yield in well-watered and medium drought soil, but significantly decreased grain yield in severe drought condition. In conclusion, the current study showed that root pruning significantly altered nHRS sensitivity and improved WUE of winter wheat in well-watered and medium drought soil, but lowered drought tolerance of winter wheat in severe drought soil

关键词： winter wheat root pruning non-hydraulic root-sourced signal (nHRS) root activity drought tolerance

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体育与健康课程跨学科主题学习的影响因素研究

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白城师范学院学报 2024年第2期38卷 113-122页

作者：谢伯昊周君华马寿明杨长建鲁东大学体育学院山东烟台264025 北京大学附属小学北京100080 烟台市芝罘区康和小学山东烟台264002

深入探索体育与健康课程跨学科主题学习的影响因素,能够进一步完善跨学科主题学习.通过问卷调查法、因子分析法对体育与健康课程跨学科主题学习影响因素进行筛选,并检验其信效度,最终确定体育与健康课程跨学科主题学习影响因素主要有教... 详细信息

深入探索体育与健康课程跨学科主题学习的影响因素,能够进一步完善跨学科主题学习.通过问卷调查法、因子分析法对体育与健康课程跨学科主题学习影响因素进行筛选,并检验其信效度,最终确定体育与健康课程跨学科主题学习影响因素主要有教师、学生、学校和体育学科四个维度,14个影响因素.通过探索性因子分析和验证性因子分析证明各影响因素之间存在显著相关性,在此基础上提出了体育与健康课程跨学科主题学习策略,以期为提高体育与健康课程学习质量提供理论与实践参考.

关键词：体育与健康课程跨学科主题学习影响因素因子分析

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