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Irrigation scheduling for corn in a coastal saline soil

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International Journal of Agricultural and Biological Engineering 2016年第6期9卷 91-99页

作者： Chang Tingting Shao Xiaohou Ye Huan Li Wei zhang Jie zhang zhanyu Key Laboratory of Efficient Irrigation-Drainage and Agricultural Soil-Water Environment in Southern China of Ministry of Education Hohai UniversityNanjing 210098China College of Water Conservancy and Hydropower Engineering Hohai UniversityNanjing 210098China Water Conservancy and Hydropower Investigation and Design Institute of Hebei Tianjin 300250China

Currently,water scarcity is serious and the irrigation scheduling with efficient water use becomes important in *** this study,irrigation systems were scheduled in the saline area along Laizhou *** study was conducted to determine the relation of irrigation regime and crop yield from 2010 to 2012,and the representative rainfall years(high-flow year,normal-flow year and low-flow year)were calculated by analyzing rainfall frequency over 30 *** irrigation regimes were set according to local farmers’*** amounts of T1,T2,T3,T4,T5 and T6 were 225.0 mm,270.0 mm,337.5 mm,300.0 mm,360.0 mm and 450.0 mm,respectively,with the same frequency of four *** results showed that soil salt content decreased with the increase of irrigation water *** corn yield varied from 6560 kg/hm2 to 8060 kg/*** highest yield was obtained from *** functions related to irrigated water(I,mm)for corn yield(Y,kg/hm2)was Y=−0.0397I2+1059.6(R2=0.8892).Aiming at high corn yield,total water supply(irrigation and rainfall)to corn crops was 859 *** amounts at low-flow year(p=80%),normal-flow year(p=50%)and high-flow year(p=20%)were obtained by the simulation of rainfall frequency curve,which were 348 mm,457 mm and 604 mm respectively in the whole growth period(from late June to mid-October).In order to obtain the highest theoretical corn yield,according to field results and rainfall,the optimum irrigation frequency at low-flow year,normal-flow year or high-flow year was four times for corn in the saline area along Laizhou Bay.

关键词： corn(Zea mays) irrigation regime desalination rainfall soil salinity

Effects of irrigation regimes on soil NO_(3)^(-)-N, electrical conductivity and crop yield in plastic greenhouse

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International Journal of Agricultural and Biological Engineering 2019年第1期12卷 109-115页

作者： Tingting Chang Yujie zhang zhanyu zhang Xiaohou Shao Weina Wang Jie zhang Xu Yang Huilian Xu Key Laboratory of Efficient Irrigation-Drainage and Agricultural Soil-Water Environment in Southern China of Ministry of Education Hohai UniversityNanjing 210098China College of Water Conservancy and Hydropower Engineering Hohai UniversityNanjing 210098China International Nature Farming Research Center Matsumoto390-1401Japan

Developing water-saving irrigation regimes has important practical significance not only in alleviating the crucial water shortage,but also in controlling soil salinization for the protected cultivation in eastern China.A field study with six treatments was conducted to evaluate the effects of different irrigation regimes with subdrainage systems on the soil nitrate nitrogen,salinity and moisture,also evaluate the effects on tomato growth,fruit yield and irrigation water use efficiency(IWUE).The treatments were distinguished by three different irrigation amounts of 310 mm,360 mm and 410 mm,and two irrigation frequencies of 7 and 11 *** showed that the irrigation amount had significant effects on the soil NO_(3)^(-)-N and electric conductivity(EC).A positive correlation was detected between soil NO_(3)^(-)-N(x)and EC(y)at 0-20 m depth after harvest,with a linear equation of y=*** volumetric moisture at 0.10 m and 0.20 m depth was increased as the irrigation amount ***,a higher amount of irrigation increased the fruit yield but reduced the IWUE of *** was also found that smaller irrigation amounts combined with frequent intervals could increase fruit yield and ***,the fruit quality of tomato had a significant(p<0.05)negative correlation with irrigation ***,the parameters of irrigation regime including the irrigation amount and intervals should be considered comprehensively in order to find a compromise between salinity control and irrigation water use efficiency improvement.

关键词： irrigation regimes greenhouse tomato soil nitrate nitrogen soil electric conductivity soil salinity water use efficiency

Osmotic adjustment and up-regulation expression of stress-responsive genes in tomato induced by soil salinity resulted from nitrate fertilization

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International Journal of Agricultural and Biological Engineering 2018年第3期11卷 126-136页

作者： Tingting Chang Yujie zhang Huilian Xu Xiaohou Shao Qicong Xu Fenglan Li Lina Yu zhanyu zhang Key Laboratory of Efficient Irrigation-Drainage and Agricultural Soil-Water Environment in Southern China of Ministry of Education Hohai UniversityNanjing 210098China College of Agricultural Science and Engineering Hohai UniversityNanjing210098China International Nature Farming Research Center Matsumoto390-1401 Japan Northeast Agricultural University Harbin 150000China Rizhao Institute of Agricultural Sciences Rizhao276800China

Concerns about the soil salinity caused by excessive fertilization have prompted scientists to clarify the detailed mechanisms and find techniques to alleviate the damage caused by this kind of soil *** of this study were to elucidate the effect of soil salinity caused by nitrate fertilization and the differences in salinity effect between nitrate salts and NaCl salt with analyses at various levels of crop physiology and molecular biology.A microbial inoculation was also tried to verify whether it could alleviate the salinity-induced loss and *** three experiments(Exp I,II and III),nitrate salts(NS)of Ca(NO_(3))_(2) and KNO_(3) were applied to potted tomato plants to simulate the soil salinity caused by fertilization and a microbial inoculant(MI)was *** was measured using *** adjustment was analyzed using the mathematically modeled pressure-volume curve;O_(2)-concentration and activity of SOD and nitrate reductase were *** of nitrate reductase gene and the stress-responsive gene DREB2 was analyzed using the real-time PCR *** Exp I and II,where the applied NS amount was moderate,NS application at low concentration induced increases in O_(2)-and MDA concentrations and plants acclimated to the soil salinity as the treatment prolonged for *** acclimation was contributed by osmotic adjustment,activation of SOD and re-compartmentation of cell water between symplasm and *** adjustments might be ultimately attributed to up-regulation of stress-responsive genes such as DREB2 as well as the nitrate reductase(NR)***,in Exp III,applications of NaCl and NS at high concentration could not show positive effects as NS *** of MI synergistically increased the xerophytophysiological regulation caused by NS and alleviated the salinity damage in addition to its own positive effects on the tomato *** from NaCl,nitrate salts at low application rate increased the total b

关键词： nitrate fertilizer osmotic adjustment salinity stress soil salinization tomato(Solanum lycopersicum) xerophytophysiology microorganism bioremediation

Fluorinated poly(p-triphenylene isatin) anion exchange membranes based on hydrophilic hydroxyl side chain modulation for fuel cells

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Journal of Energy Chemistry 2025年第1期100卷 702-709页

作者： Yiman Gu Yanchao zhang zhanyu Li Yijia Lei Baozeng Sun Xiaoyu Yu Zhe Wang College of Chemistry and Life Science Changchun University of Technology College of Chemical Engineering Changchun University of Technology School of Materials Science and Engineering Changchun University of Technology Key Laboratory of Advanced Functional Polymer Membrane Materials of Jilin Province

The development of alkaline fuel cells is moving forward at an accelerated pace,and the application of ether-free bonded polymers to anion exchange membranes （AEMs） has been widely ***,the question of the“trade-off”between AEM ionic conductivity and dimensional stability remains *** strategy of inducing microphase separation to improve the performance of AEM has attracted much attention recently,but the design of optimal molecular structures is still being ***,this work introduced different ratios of 3-bromo-1,1,1-trifluoroacetone （x=40,50,and 60） into the main chain of poly（p-terphenylene isatin）.Because fluorinated groups have excellent hydrophobicity,hydrophilic hydroxyl-containing side chains are introduced to jointly adjust the formation of phase separation *** results show that PTI-PTF50-NOH AEM with the appropriate fluorinated group ratio has the best ionic conductivity and alkali stability under the combined effect of *** has an ionic conductivity of 133.83 mS cm-1at 80°*** addition,the OH-conductivity remains at 89%of the initial value at 80°C and 3 M KOH for 1056 h of *** cell polarization curve based on PTI-PTF50-NOH shows a power density of 734.76 mW cm-2at a current density of 1807.7 mA cm-2.

关键词： Potassium hydroxide

混沌人工鱼群算法及其在灌区优化配水中的应用

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农业工程学报 2007年第6期23卷 7-11页

作者：高玉芳张展羽南京信息工程大学应用气象学系南京210044 河海大学现代农业工程学院南京210098

对人工鱼群算法进行了改进,结合灌区优化配水问题,建立了灌区优化配水的混沌人工鱼群算法模型。通过对山东省威海市节水灌溉示范区进行优化计算,算法能有效地搜索到灌区净效益最高点,优化后与现状种植结构相比,粮食作物面积减少,经济效... 详细信息

对人工鱼群算法进行了改进,结合灌区优化配水问题,建立了灌区优化配水的混沌人工鱼群算法模型。通过对山东省威海市节水灌溉示范区进行优化计算,算法能有效地搜索到灌区净效益最高点,优化后与现状种植结构相比,粮食作物面积减少,经济效益较高的果树面积增大,灌区净效益提高56%。优化结果表明,混沌人工鱼群算法应用于灌区优化配水计算切实可行,为复杂的灌区优化配水问题提供了新的思路和方法。

关键词：人工鱼群算法混沌人工鱼群算法灌区优化配水模型

核苷酸结合寡聚化结构域样受体蛋白3炎性小体在帕金森病中的研究进展

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中华神经科杂志 2020年第2期53卷 147-151页

作者：张展舆李彦张玉虎华南理工大学医学院广州510006 广东省人民医院(广东省医学科学院)神经科广东省神经科学研究所广州510080

帕金森病是一种常见的神经退行性疾病,其特征是黑质多巴胺能神经元的进行性丧失。虽然帕金森病的病因可能是多因素的,但神经炎症是该疾病发病机制的重要组成部分。核苷酸结合寡聚化结构域样受体蛋白3(NLRP3)炎性小体是调节炎症的多蛋白... 详细信息

帕金森病是一种常见的神经退行性疾病,其特征是黑质多巴胺能神经元的进行性丧失。虽然帕金森病的病因可能是多因素的,但神经炎症是该疾病发病机制的重要组成部分。核苷酸结合寡聚化结构域样受体蛋白3(NLRP3)炎性小体是调节炎症的多蛋白先天免疫复合物。在帕金森病神经炎症中,NLRP3炎性小体复合物组装募集并激活半胱氨酸天冬氨酸蛋白酶-1(caspase-1),激活的caspase-1切割炎性因子白细胞介素-1β和白细胞介素-18的前体,从而启动下游炎性级联反应,加重多巴胺神经元损伤。本综述中对NLRP3炎性小体在帕金森病病理生物学中最新研究进行总结,并且讨论了通过抑制NLRP3炎性小体缓解帕金森病进展的潜在策略。

关键词：帕金森病半胱氨酸天冬氨酸蛋白酶1 炎症核苷酸结合寡聚化结构域样受体蛋白3

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农田墒情动态二区模拟模型

农业工程学报 2012年第4期28卷 106-110页

作者：朱新国张展羽刘莉宁波市农村水利管理处宁波315016 河海大学水利水电学院江苏210098 宿迁市水务局宿迁223800

为准确模拟土壤计划湿润层内墒情动态变化,基于土壤-植物-大气连续体物质能量运动及土壤水动力学的基本理论,考虑作物根系伸展和吸水特性,把土壤水分变化土层划分为随作物根系伸展而改变深度的包含主要根系的动态根区和无根系的储水区,... 详细信息

为准确模拟土壤计划湿润层内墒情动态变化,基于土壤-植物-大气连续体物质能量运动及土壤水动力学的基本理论,考虑作物根系伸展和吸水特性,把土壤水分变化土层划分为随作物根系伸展而改变深度的包含主要根系的动态根区和无根系的储水区,构建了变根区墒情动态二区模型。模型根区深度随着作物根系伸展改变,以此准确表达土壤计划湿润层内墒情的动态变化;将储水区的土壤水分作为模型变量,计算根区下界面水分通量,由此间接地考虑了深层土壤水分对作物蒸发蒸腾量的影响。将模型拟合误差作为目标函数,采用自由搜索算法率定模型参数。应用建立的模型进行墒情模拟,模拟相对误差小于±5%和±10%所占的比例分别为49.09%和94.55%;经t检验和回归分析表明预测值和实测值相差不大,具有较好的一致性,决定系数为0.779,模型具有较高的模拟精度,能准确反映计划湿润层内墒情的变化。

关键词：模型土壤水分动力学墒情模拟根系伸展

投影寻踪分类模型在作物补偿效应评价中的应用

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农业机械学报 2010年第1期41卷 59-62,33页

作者：郝树荣郭相平张展羽河海大学农业工程学院南京210098

为了解决作物旱后复水补偿效应评价和优选的不确定性,提高补偿效应评价模型的分辨率,提出了投影寻踪分类模型,并采用变异和动态信息素更新蚁群算法寻找最优的投影方向,用最佳投影方向信息研究各评价指标对补偿效应的贡献率,发现光合速... 详细信息

为了解决作物旱后复水补偿效应评价和优选的不确定性,提高补偿效应评价模型的分辨率,提出了投影寻踪分类模型,并采用变异和动态信息素更新蚁群算法寻找最优的投影方向,用最佳投影方向信息研究各评价指标对补偿效应的贡献率,发现光合速率的大小直接反应了补偿生长的能力,是影响补偿效应的关键因子,与以往研究结论相符,且适度胁迫复水后第5天表现出的补偿效应最佳。

关键词：水分胁迫补偿效应投影寻踪分类综合评价

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水分胁迫及复水对水稻冠层结构的补偿效应

农业机械学报 2010年第3期41卷 52-55,61页

作者：郝树荣郭相平张展羽河海大学南方地区高效灌排与农业水土环境教育部重点实验室南京210098 河海大学水利水电学院南京210098

通过盆栽和测坑试验,研究了水分胁迫及复水对水稻冠层结构的补偿影响。结果表明:水分胁迫在抑制水稻茎秆、叶片、叶面积延伸生长的同时,能有效地诱导冠层结构,为旱后复水补偿效应的产生提供条件。旱后复水促进了后期穗节的伸长、延缓后... 详细信息

通过盆栽和测坑试验,研究了水分胁迫及复水对水稻冠层结构的补偿影响。结果表明:水分胁迫在抑制水稻茎秆、叶片、叶面积延伸生长的同时,能有效地诱导冠层结构,为旱后复水补偿效应的产生提供条件。旱后复水促进了后期穗节的伸长、延缓后期叶片衰老速率、苗后期胁迫使作物对再次受旱的适应能力增强。但补偿效应是有条件的,苗后期重旱和拔节初期轻旱补偿效应最佳,应避免两阶段连旱和拔节期重旱。

关键词：水稻水分胁迫复水冠层结构补偿效应