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不同R/FR比值对双断根西瓜嫁接苗生理及光合荧光特性的影响

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中国农业大学学报 2024年第3期29卷 87-98页

作者：王芽芽张帆石玉鲍恩财曹凯吴雪张毅山西农业大学园艺学院山西太谷030801 江苏省农业科学院农业设施与装备研究所/农业农村部长江中下游设施农业工程重点实验室南京210014

为探究不同红光/远红光(R/FR)比值对双断根西瓜嫁接苗生理及光合荧光特性的影响,提高西瓜嫁接苗种苗品质,对双断根西瓜嫁接苗进行不同光质处理,共设置4种光质组合:黑暗(D)、白光(W)、高比值R/FR(R/FR=3,H)和低比值R/FR(R/FR=0.3,L),以... 详细信息

为探究不同红光/远红光(R/FR)比值对双断根西瓜嫁接苗生理及光合荧光特性的影响,提高西瓜嫁接苗种苗品质,对双断根西瓜嫁接苗进行不同光质处理,共设置4种光质组合:黑暗(D)、白光(W)、高比值R/FR(R/FR=3,H)和低比值R/FR(R/FR=0.3,L),以黑暗为对照,分析西瓜嫁接苗幼苗形态、渗透调节物质、抗氧化酶系统和光合荧光特性。结果表明:与对照相比,L处理显著提高了西瓜嫁接苗的成活率和生长指标,显著提高接穗叶片中的抗氧化酶活性(SOD和POD)、可溶性糖和可溶性蛋白质量分数,同时显著降低了O^(2-)、H_(2)O_(2)和MDA的积累。L处理对西瓜嫁接苗光合系统也有一定影响:处理8 d时,嫁接苗光合特性指标、Fv/Fm、Fv'/Fm'和ФPSⅡ显著升高,NPQ显著下降;而长时间处理(20 d)会导致叶绿素质量分数以及光合特性指标降低,Fv/Fm、Fv'/Fm'、ФPSⅡ和qP下降,NPQ显著升高。综上,低比值R/FR处理能够通过增强西瓜嫁接苗抗氧化能力并影响光合作用的过程,最终促进双断根西瓜嫁接苗的成活及生长。

关键词：双断根嫁接西瓜红光/远红光抗氧化系统光合系统

基于环境控制的水禽(鸭)养殖模式及发展趋势

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家畜生态学报 2024年第3期45卷 92-96页

作者：梁伟宋家帅鲍恩财林勇郭彬彬应诗家吴照学安徽农业大学工学院安徽合肥230036 江苏省农业科学院畜牧研究所江苏南京210014 江苏省农业科学院农业设施与装备研究所农业农村部长江中下游设施农业工程重点实验室江苏南京210014

近年来,随着设施畜牧业的大力发展,水禽养殖模式正在逐年演变。由于传统的水域开放式养殖对禽类健康和生态环境的危害愈加严重,旱地平养应运而生。然而,传统的旱地平养也仅仅达到节约资源、保护环境的作用,针对增加土地利用率和减少病... 详细信息

近年来,随着设施畜牧业的大力发展,水禽养殖模式正在逐年演变。由于传统的水域开放式养殖对禽类健康和生态环境的危害愈加严重,旱地平养应运而生。然而,传统的旱地平养也仅仅达到节约资源、保护环境的作用,针对增加土地利用率和减少病毒侵害等问题,层叠式笼养和发酵床网上养模式成为水禽养殖的大势所趋。随着科技水平的提升,水禽养殖模式已逐步从标准化、规模化到集约化、自动化再到福利化方向发展。本文调研国内各地区水禽养殖模式及相应设施装备,总结国内水禽养殖模式类型及发展历史,并对其发展趋势进行展望。

关键词：水禽养殖模式发展历史设施装备

Influence of thermodynamic disfigurement on the convective heat transfer of solar greenhouse

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International Journal of Agricultural and Biological Engineering 2020年第4期13卷 55-60页

作者： Yachen Sun Yanfei Cao Haotian Wang Changji Zhou Jinxin Xiao Chengyao Jiang Jianming Li encai bao Zhirong Zou Key Laboratory of Protected Horticultural Engineering in Northwest Ministry of Agriculture and Rural AffairsDepartment of HorticultureNorthwest A&F UniversityYangling 712100ShaanxiChina Academy of Agricultural Planning and Engineering Ministry of Agriculture and Rural AffairsBeijing 100125China Institute of Agricultural Facilities and Equipment Jiangsu Academy of Agricultural SciencesKey Laboratory of Protected Agriculture Engineering in the Middle and Lower Reaches of Yangtze RiverMinistry of Agriculture and Rural AffairsNanjing 210014China

Solar greenhouse is a typical greenhouse without any additional heating system,which has developed rapidly in Northern ***,due to the construction quality,management methods,especially the long-term use and other factors,there are usually different degrees of thermodynamic disfigurements in the envelop enclosure of solar *** purpose of this study was to investigate the influences of thermodynamic disfigurement on the temperature distribution and convective heat transfer of solar *** this study,the east and west compartments of a typical solar greenhouse which is located in Yangling,China(108°4′E,34°16′N)were *** air temperature of each compartment was collected using temperature recorders,and the thermal infrared images of different compartment envelopes were obtained by a thermal infrared imager on a typical cloudy *** heat transfer coefficients and heat flux densities of different compartment envelopes in the solar greenhouse were *** results showed that the temperature difference can be displayed in the thermal infrared images of compartment envelopes,the surface temperature of the front roof was the lowest,followed by the back roof,the wall surface temperature was the *** minimum average surface temperature of the front roof in the eastern compartment was only 3.8℃,which was 6.8℃ and 9.2℃ lower than the average surface temperature of the back roof and back wall,*** surface average temperature of thermodynamic disfigurements located at the bottom of the south side in the front roof of the eastern compartment,whose area accounted for 16.5%of the total front roof in the eastern compartment,was only 5.4℃.Compared with non-thermodynamic disfigurement,the average convective heat transfer coefficient and heat flux density of thermodynamic disfigurements in the front roof of the eastern compartment were increased by 20.3%and 110.3%,*** average air temperature in the eastern com

关键词： solar greenhouse thermodynamic disfigurement convective heat transfer thermal infrared image

Application performances of two greenhouses with new types of backwall in Yangling,China

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International Journal of Agricultural and Biological Engineering 2022年第3期15卷 62-71页

作者： Yachen Sun Haotian Wang Chenmeng Zhu Hongyi Lyu Xuanhe Zhang Yanfei Cao Jianming Li Zhirong Zou encai bao College of Architecture and Urban Planning Tongji UniversityShanghai 200092China Key Laboratory of Protected Horticultural Engineering in Northwest Ministry of Agriculture and Rural AffiairsDepartment of HorticultureNorthwest A&F UniversityYangling 712100ShaanxiChina Office of Academic Affairs Fudan UniversityShanghai 200433China Institute of Agricultural Facilities and Equipment Jiangsu Academy of Agricultural ScienceKey Laboratory of Protected Agriculture Engineering in the Middle and Lower Reaches of Yangtze RiverMinistry of Agriculture and Rural AffairsNanjing 210014China

In order to investigate the application performances of the solar greenhouses with new types of backwall(greenhouse W_(2),and greenhouse W_(3))and the ordinary clay brick backwall greenhouse(greenhouse W_(1)),and provide a theoretical basis for the construction of solar greenhouse in Yangling Demonstration Zone,Shaanxi,China,two greenhouses with different new types of backwall were *** backwall of one of them was built with lightweight aggregate concrete block(greenhouse W_(2))and that of the other one was assembled with a row of sand-filled cement pipes(greenhouse W_(3)).The tested greenhouses were constructed in Yangling Demonstration *** on the data collected on typical sunny and cloudy days,the indoor temperature,inside wall temperature,and the heat flow of the greenhouses with new types of backwall were compared with those detected in the ordinary clay brick backwall solar greenhouse,and the tested results were numerically *** to the comparison of the physiological indicators of tomatoes planted in the greenhouses and the construction costs,the greenhouse type with the best practicability was *** results indicated that:The average air temperature in greenhouses W_(1),W_(2),and W_(3)and outside was 15.1℃,15.9℃,17.3℃,and−0.4℃ on the night of a sunny day,and the air temperature in W_(3)was the *** average air temperature in greenhouses W_(1),W_(2),and W_(3)and outside were 9.5℃,13.3℃,11.0℃,and−5.5℃ on the night of a cloudy day,the air temperature in W_(2)was the *** the depth of 0-330 mm from the interface of the backwalls,the walls were obviously affected by the solar radiation,and the temperature changed *** wall temperature on the sunny days exhibited an ascending order of W_(1),W_(2),W_(3),while on the cloudy days was in the ascending order of W_(1),W_(3),W_(2).The wall of W_(3)absorbed the most heat during the daytime and released the most heat at night on the sunny day,while W_(2)exhibited the seco

关键词： application performances solar greenhouse backwall temperature

Effects of window opening style on inside environment of solar greenhouse based on CFD simulation

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International Journal of Agricultural and Biological Engineering 2020年第6期13卷 53-59页

作者： Yachen Sun encai bao Chenmeng Zhu Lulu Yan Yanfei Cao Xuanhe Zhang Jianming Li Haiwei Jing Zhirong Zou Key Laboratory of Protected Horticultural Engineering in Northwest Ministry of AgricultureDepartment of HorticultureNorthwest A&F UniversityYangling 712100ShaanxiChina Institute of Agricultural Facilities and Equipment Jiangsu Academy of Agricultural ScienceKey Laboratory of Protected Agriculture Engineering in the Middle and Lower Reaches of Yangtze RiverMinistry of Agriculture and Rural AffairsNanjing 210014China College of Management City University of Hong KongTat Chee AvenueKowloon 999077Hong KongChina Department of Horticulture Xinyang Agriculture and Forestry UniversityXinyang 464000HenanChina Department of Water Resources and Architectural Engineering Northwest A&F UniversityYangling 712100ShaanxiChina

Solar greenhouse is extensively used in horticultural production in *** ventilation is one of the key technological means to adjust the inside environment of greenhouse,while the effects of window opening styles on the inside environment are still not well *** the present study,the temperature and air flow field of five operation styles,namely back roof central opening style(G1),back roof evenly spaced opening style(G2),top roof full opening style(G3),style of G1+G3,and style of G2+G3 were simulated using the CFD *** results indicated that:(1)the simulated and measured results exhibited favorable agreement,with relative errors within 5%;(2)In the case of the windows opening area was the same and only single ventilation style was applied,back roof full opening style exhibited the best cooling *** inside average temperature of the greenhouse with G1 style decreased by 0.5°C and 1.6°C respectively compared with those of greenhouses with G2 and G3.(3)The cooling effect of the style of G2+G3 was more favorable than that of the style of G1+*** style of G2+G3 exhibited better cooling effect than the single ventilation styles,with the lowest temperature(27.5°C)and temperature uniformity coefficient(0.36).

关键词： CFD modeling window opening styles cooling effects solar greenhouse

Sensitivity of solar greenhouse envelopes to the thermal disfigurements and optimal selection of the thermal insulation quilt

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International Journal of Agricultural and Biological Engineering 2021年第5期14卷 50-55页

作者： Yachen Sun Yao Zhang Chenmeng Zhu Shaonan Xu Bowen Liu Yanfei Cao Changji Zhou Yaqi Zhou Zhirong Zou encai bao College of Architecture and Urban Planning Tongji UniversityShanghai 200092China Institute of Agricultural Facilities and Equipment Jiangsu Academy of Agricultural ScienceKey Laboratory of Protected Agriculture Engineering in the Middle and Lower Reaches of Yangtze RiverMinistry of Agriculture and Rural AffairsNanjing 210014China School of Engineering Anhui Agricultural UniversityHefei 230036China Department of Management City University of Hong KongTat Chee Avenue KowloonHong Kong 999077China Qinghai College of animal husbandry and veterinary technology Xining 812100China School of Ocean and Earth Science Tongji UniversityShanghai 200092China Key Laboratory of Protected Horticultural Engineering in Northwest Ministry of Agriculture and Rural AffairsDepartment of HorticultureNorthwest A&F UniversityYangling 712100ShaanxiChina Academy of Agricultural Planning and Engineering Ministry of Agriculture and Rural AffairsBeijing 100125China School of Karst Science Guizhou Normal UniversityGuiyang 550001China

The objectives of the present work are focused on exploration of the reasons for temperature difference in different envelopes,the sensitivity of envelopes of solar greenhouse to thermal disfigurements and optimal selection of the thermal insulation *** analysis and derivation are conducted according to the experimental results of surface temperature,convective heat transfer,and heat flux density in different envelopes which with thermal disfigurements of solar greenhouse using heat transfer *** results revealed that the difference of intrinsic thermal conductivity and thickness of the envelopes leads to difference in the thermal flux and thus in the surface temperature of different *** with the front roof and back roof,the wall is more sensitive to thermal *** to the influence of thermal disfigurements on solar greenhouse temperature,the allowable thermal disfigurements area fraction of front roof and back roof are *** on the analysis of heat transfer theory and test results,the work given the expression of the thickness and thermal conductivity of thermal insulation quilt under different outdoor minimum temperatures for optimal selection of thermal insulation quilt based on comprehensive considering factors of the solar greenhouse structure,crop demand,outdoor minimum temperature,and insulation quilt *** results of this work give technical criterion for whether the envelopes with thermal disfigurements needs to be repaired or replaced,and it also provides theoretical and technical support for design the solar greenhouse as well as methodological guidance for the optimal selection of the thermal insulation quilt.

关键词： solar greenhouse thermal disfigurements optimal selection thermal insulation quilt

主动蓄热日光温室不同气流方向后墙传热CFD模拟

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农业工程学报 2018年第22期34卷 169-177页

作者：鲍恩财邹志荣张勇西北农林科技大学园艺学院农业农村部西北设施园艺工程重点实验室杨凌712100 江苏省农业科学院农业设施与装备研究所农业农村部长江中下游设施农业工程重点实验室南京210014

日光温室是一种能源高效利用型的温室结构,在中国北方的设施园艺产业中起到了非常重要的作用,其中主动储热日光温室结构是最近该领域研究的热点问题之一。针对高效主动储热风道的研究问题,该文构建了3种不同气流运动方式的主动蓄热日光... 详细信息

日光温室是一种能源高效利用型的温室结构,在中国北方的设施园艺产业中起到了非常重要的作用,其中主动储热日光温室结构是最近该领域研究的热点问题之一。针对高效主动储热风道的研究问题,该文构建了3种不同气流运动方式的主动蓄热日光温室后墙模型,分别是顶进顶出气流运动方式的主动蓄热日光温室后墙(W1)、侧进侧出气流运动方式的主动蓄热日光温室后墙(W2)、侧进顶出气流运动方式的主动蓄热日光温室后墙(W3)。在W1工况下对比试验数据及数值模拟数据发现,平均相对误差为6.7%,最大相对误差为13.4%,说明该文所建模型的数值模拟与试验数据有很好的一致性;进一步模拟结果表明,进口条件一致的情况下,W1、W2、W3在主动蓄热循环系统运行阶段的有效蓄热范围分别为700～800、500～600、600～700 mm;W1、W2、W3的出口平均温度分别为17.3、18.9、18.2℃,进一步计算得到,3种工况下,内部空气流的努塞尔特数分别为40.95、35.25、35.30;3种不同气流循环运动方式下,温室后墙的对流换热强烈程度表现为W1最大,W3其次,W2最小。该研究为设计主动蓄热日光温室墙体气流循环运动方式提供了理论依据和试验参考。

关键词：温室墙体温度主动蓄热气流分布数值模拟日光温室

日光温室墙体用相变固化土性能测试及固化机理

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农业工程学报 2017年第16期33卷 203-210页

作者：鲍恩财邹志荣张勇西北农林科技大学园艺学院农业部西北设施园艺工程重点实验室杨凌712100

中国西北非耕地地区面积辽阔,日光温室的应用可以增加耕地面积,对于保障国家粮食安全、缓解经济作物与粮食作物争地矛盾具有重大的战略意义。该文提出一种在西北非耕地地区建造日光温室用的相变固化剂,研究其添加进土壤后相变固化土的... 详细信息

中国西北非耕地地区面积辽阔,日光温室的应用可以增加耕地面积,对于保障国家粮食安全、缓解经济作物与粮食作物争地矛盾具有重大的战略意义。该文提出一种在西北非耕地地区建造日光温室用的相变固化剂,研究其添加进土壤后相变固化土的力学及热性能,并结合微观结构揭示其固化机理。研究设计2种相变固化剂掺量(5%和10%),分析不同掺量处理风沙土和戈壁土后的力学性能、热性能以及固化机理。抗压强度试验结果表明,5%和10%相变固化剂掺量的风沙土和戈壁土的抗压强度均有较大幅度的提高,10%相变固化剂掺量的风沙土试块平均抗压强度为3.208 MPa,约为5%掺量试块强度的2倍(P0℃的实际状况,5%相变固化剂掺量风沙土吸热量和放热量分别为28.16和29.89 J/g,5%相变固化剂掺量戈壁土吸热量和放热量分别为13.55和12.69 J/g。10%相变固化剂掺量的风沙土与戈壁土吸、放热量均与5%掺量同一类型土壤的吸、放热量相差甚微。扫描电子显微镜观察结果从微观方面解释了相变固化土强度提高和高效蓄放热的机理。该文从试验角度证明5%掺量相变固化剂的风沙土或戈壁土具有作为日光温室墙体的建筑结构和储能主体材料的潜力,在西北非耕地地区将会有较好的应用前景。

关键词：相变材料土壤温室固化剂抗压强度 DSC 固化机理

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工厂化水产养殖设施保温技术研究进展

现代农业科技 2024年第5期 182-188页

作者：孙侦龙宋家帅焦冬祥杨志鹏吴照学叶章颖李国峰吴爱君鲍恩财南通龙洋水产有限公司江苏南通226600 江苏省农业科学院江苏南京210014 安徽农业大学工学院安徽合肥230036 浙江大学生物系统工程与食品科学学院浙江杭州310058

工厂化水产养殖起源于20世纪60年代,其较传统粗放式养殖在生产各环节可调控、水质可处理,养殖模式符合节能环保理念,在我国发展迅速。本文介绍了工厂化水产养殖设施的发展现状,综述了水产养殖大棚、水产养殖温室、水产养殖车间保温技术... 详细信息

工厂化水产养殖起源于20世纪60年代,其较传统粗放式养殖在生产各环节可调控、水质可处理,养殖模式符合节能环保理念,在我国发展迅速。本文介绍了工厂化水产养殖设施的发展现状,综述了水产养殖大棚、水产养殖温室、水产养殖车间保温技术研究现状,并详细分析了养殖车间顶部保温技术和墙体保温技术(外墙外保温、外墙内保温、外墙中置保温),展望了未来发展方向和研究内容,以期为国内开展工厂化水产养殖设施保温技术的相关研究提供参考。

关键词：工厂化水产养殖养殖设施保温技术