检索结果-南通市图书馆

玉米多品种间作对土壤团聚体组成和稳定性的影响

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

浙江农业学报 2024年第6期36卷 1339-1346页

作者：热伊罕古丽·喀迪尔刘文利周一诺许冲马新吴景贵李建明吉林农业大学资源与环境学院吉林省商品粮基地土壤资源可持续利用重点实验室吉林长春130118

为阐明玉米多品种间作对土壤团聚体组成和稳定性的影响,通过为期2 a的田间试验,测定并分析了单品种单播(T1)、两品种间作(T2)、三品种间作(T3)和四品种间作(T4)下根质量密度(RMD)、根长密度(RLD)与土壤团聚体粒级和稳定性指标[大于0.25... 详细信息

为阐明玉米多品种间作对土壤团聚体组成和稳定性的影响,通过为期2 a的田间试验,测定并分析了单品种单播(T1)、两品种间作(T2)、三品种间作(T3)和四品种间作(T4)下根质量密度(RMD)、根长密度(RLD)与土壤团聚体粒级和稳定性指标[大于0.25 mm粒径团聚体含量(R_(>0.25))、平均质量直径(MWD)、几何平均直径(GMD)]的变化规律。结果显示,与单品种单播相比,间作处理(T2~T4)的RMD、RLD、MWD、GMD、R_(>0.25)均呈递增趋势。与T1相比,T2、T3、T4处理的RMD分别显著(P0.25)分别显著提高0.65、0.89、1.02百分点,MWD分别显著提高7.2%、10.7%、15.7%,GMD分别显著提高13.1%、21.1%、31.9%;湿筛法测定的R_(>0.25)分别显著提高4.34、9.42、11.81百分点,MWD分别显著提高19.6%、41.2%、54.9%,GMD分别显著提高27.0%、64.9%、87.8%。综上,玉米多品种间作可通过提高根质量密度和根长密度等根系特征,改善土壤团聚体的粒径分布及其稳定性。

关键词：间作根系性质土壤团聚体

Trimming of N-Glycans by the Golgi-Localized α-1,2-Mannosidases, MNS1 and MNS2, Is Crucial for Maintaining RSW2 Protein Abundance during Salt Stress in Arabidopsis

维普期刊数据库

同方期刊数据库博看期刊评论

在线全文

学校读者我要写书评

暂无评论

Molecular Plant 2018年第5期11卷 678-690页

作者： Chuanfa liu Guanting Niu Huchen Zhang Yafei Sun Shubin Sun Fugen Yu Shan Lu Yonghua Yang jianming li Zhi Hong State Key Laboratory of Pharmaceutical Biotechnology NJU Advanced Institute for Life Sciences (NAILS) School of Life Sciences Nanjing University Nanjing 210023 China State Key Laboratory of Crop Genetics and Germplasm Enhancement College of Resources and Environmental Science Nanjing Agricultural University Nanjing 210095 China Department of Molecular Cellular and Developmental Biology University of Michigan Ann Arbor MI 48109 USA Shanghai Center for Plant Stress Biology Shanghai Institutes for Biological Sciences The Chinese Academy of Sciences Shanghai 201602 China

Asparagine （Asn/N）-Iinked glycans are important for protein folding, trafficking, and endoplasmic reticulum-associated degradation in eukaryotes. The maturation of glycoproteins involves the trimming of mannosyl residues by mannosidases and addition of other sugar molecules to three-branched N-glycans in the Golgi. However, the biological importance of Golgi-mediated mannose trimming is not fully understood. Here, we show that abolishment of two functionally redundant mannosidases, MNS1 and MNS2, responsible for α-1,2-mannose trimming on the A and C branches of plant N-glycans lead to severe root growth inhibition under salt stress conditions in Arabidopsis. In contrast, mutants with defects in the biosynthesis of the oligosaccharide precursor displayed enhanced salt tolerance in the absence of mannose trimming. However, mutation in EBS3, which is required for the formation of the branched N-glycan precursor, suppressed the salt-sensitive phenotype of mnsl mns2 double mutant. Interestingly, we observed that cellulose biosynthesis was compromised in mnsl mns2 roots under high salinity. Consistently, abundance of a membrane anchored endo-13-1,4-endoglucanase （RSW2/KOR） that plays a key role in cellulose biosynthesis and its mutant variant rsw2-1 were modulated by α-1,2-mannose trimming under salt stress. Overexpression of RSW2 could partially rescue the salt-sensitive phenotype of mnsl mns2. Taken together, these results suggest that MNS1/2-mediated mannose trimming of N-glycans is crucial in modulating glycoprotein abundance to withstand salt stress in plants.

关键词： N-glycan Golgi α-mannosidase I salt tolerance Arabidopsis

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

四种检验方法在山东暴雪预报中的应用对比

海洋气象学报 2024年第2期44卷 90-97页

作者：李建明于怀征韩永清冀玉超马晓睿山东省气象防灾减灾重点实验室山东济南250031 东营市气象局山东东营257091 日照市气象局山东日照276800 山东省气象台山东济南250031

利用山东122个国家级地面气象观测站2017—2021年中1—3月和11—12月“24 h降雪量p≥10.0 mm”的暴雪实况资料,采用二分类法、邻域空间检验法(以下简称“邻域法”)、时间偏移法和量级模糊法等4种方法对山东暴雪预报进行检验与对比。结... 详细信息

利用山东122个国家级地面气象观测站2017—2021年中1—3月和11—12月“24 h降雪量p≥10.0 mm”的暴雪实况资料,采用二分类法、邻域空间检验法(以下简称“邻域法”)、时间偏移法和量级模糊法等4种方法对山东暴雪预报进行检验与对比。结果表明:(1)山东暴雪具有明显的时空分布特征,暴雪主要出现在半岛北部地区,鲁东南和半岛南部产生暴雪的概率最小;暴雪出现次数的年际变化和月际变化较大,最多年份出现98次,最少年份仅有5次,2月是高发月,占全年暴雪总次数的38.5%。(2)现行业务中应用最广泛的二分类法检验的预报命中率较低,其中24 h预报命中率仅为12.08%,主要原因是该方法受到空间、时间和量级的多重影响,不能精细准确地反映预报能力。(3)邻域法、时间偏移法和量级模糊法对24 h的暴雪预报命中率分别为14.40%、14.69%和30.05%;相较于二分类法,这3种检验方法的预报命中率均有较大幅度提高,空报率和漏报率均有较大幅度下降。(4)融合邻域法、时间偏移法和量级模糊法的综合检验法,能从空间、时间和量级3个维度区分出预报差异,检验结果更加精细准确,有利于引导预报员放下“检验评分低”的思想包袱,做出更加科学客观的预报,进一步提升预报服务效果。

关键词：暴雪分布特征预报检验方法

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

维普期刊数据库博看期刊

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

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

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

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

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

Thermoelectrocatalysis: an emerging strategy for converting waste heat into chemical energy

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

National Science Review 2024年第4期11卷 19-21页

作者： Yuqiao Zhang Shun li jianming Zhang li-Dong Zhao Yuanhua lin Weishu liu Federico Rosei Institute of Quantum and Sustainable Technology(IQST) School of Chemistry and Chemical Engineering Jiangsu University School of Materials Science and Engineering Beihang University State Key Laboratory of New Ceramics and Fine Processing School of Materials Science and Engineering Tsinghua University Department of Materials Science and Engineering Southern University of Science and Technology Centre for Energy Materials and Telecommunications Institut national de la recherche scientifique

Waste heat emissions are universally present in the environment and industrial production. Innovations aimed at efficiently utilizing low-grade thermal energy have long been desired. Among these, thermoelectric materi...

关键词：

A systematic understanding of microbial reductive dechlorination towards an improved “one health” soil bioremediation: A review and perspective

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Science China Technological Sciences 2024年第10期67卷 3009-3031页

作者： HE Yan li ShuYao YUAN Jing CHENG Jie DOU JiBo YANG Xueling XU jianming Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment Institute of Soil and Water Resources and Environmental ScienceCollege of Environmental and Resource SciencesZhejiang University Key Laboratory of Environment Remediation and Ecological Health Ministry of Education Microbiome Network and Department of Agricultural Biology Colorado State University Departments of Chemistry and Chemical & Biomolecular Engineering Institute for Functional Intelligent Materials (I-FIM)National University of Singapore

Chlorinated organic pollutants(COPs), both emerging and traditional, are typical persistent pollutants that harm soil health worldwide. Dechlorinators mediated reductive dechlorination is the optimal way to completely remove COPs from anaerobic soil through a redox reaction driven by electron transfer during microbial anaerobic respiration. Generally, the dechlorinated depletion of COPs in situ often interacts with multiple element biogeochemical activities, e.g., methanogenesis, sulfate reduction, iron reduction, and denitrification. Elucidating the relevance of biogeochemical cycles between COPs and multiple elements and the coupled mechanisms involved, thus, helps to develop effective pollution control strategies with the balance between pollution degradation and element cycles in heterogeneous soil, ultimately contributing to “one health” goal. In this review, we summarized the microbial-chemical coupling redox processes and the driving factors, elucidated the interspecies metabolites exchange and electron transfer mechanisms within COP-dechlorinating communities, and further proposed a detailed design, construction, and analysis framework of engineering COP-dechlorinating microbiomes via “top-down” selfassembly and “bottom-up” synthesis to pave the way from laboratory to practical field application. Especially, we delve into the major challenges and perspectives surrounding the design of state-of-the-art synthetic microbial communities. Our goal is to improve the understanding of the microbial-mediated coupling between reductive dechlorination and element biogeochemical cycling, with a particular focus on the implications for health-integrated soil bioremediation under the “one health” concept.

关键词： reductive dechlorination biogeochemical redox processes interspecies interaction synthetic microbiomes, anaerobic soils

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

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

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

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

鲜食糯玉米新品种吉科糯20的选育

中国蔬菜 2024年第4期 139-142页

作者：姜龙李剑明于海燕宁夕琳高锋杨柏明魏书琴潘业兴荣美琪吉林农业科技学院吉林吉林132101

吉科糯20是以自交系JN111为母本,以JN203为父本配制而成的鲜食糯玉米一代杂种。中早熟,春播生育期约87 d(天);株型半紧凑,生长势强,平均株高238 cm,穗位高109 cm;果穗长筒型,平均穗长22.1 cm,穗行数14~16行,籽粒白色、糯质型,排列整齐,... 详细信息

吉科糯20是以自交系JN111为母本,以JN203为父本配制而成的鲜食糯玉米一代杂种。中早熟,春播生育期约87 d(天);株型半紧凑,生长势强,平均株高238 cm,穗位高109 cm;果穗长筒型,平均穗长22.1 cm,穗行数14~16行,籽粒白色、糯质型,排列整齐,百粒重41.9 g,直链淀粉占粗淀粉含量的2.84%,皮渣率5.97%(FW);中抗大斑病、丝黑穗病、茎腐病,每667 m^(2)鲜穗产量900 kg左右,适宜吉林省鲜食糯玉米中熟至晚熟区种植。

关键词：糯玉米吉科糯20 一代杂种