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喷施木醋液对菘蓝苗期生长和生理的影响

北方园艺 2024年第15期 96-103页

作者：黄艺博韩洁夏钰景艳莉杨升高玉刚黑龙江八一农垦大学园艺园林学院黑龙江大庆163319

以小叶菘蓝为试材,采用温室盆栽法,研究了清水浸种和15%PEG 6000浸种胁迫下,叶面喷施不同浓度木醋液对菘蓝幼苗生长和生理指标的影响,以期为木醋液应用于菘蓝及其他药用植物的绿色、生态种植提供参考依据。结果表明:叶面喷施适宜浓度的... 详细信息

以小叶菘蓝为试材,采用温室盆栽法,研究了清水浸种和15%PEG 6000浸种胁迫下,叶面喷施不同浓度木醋液对菘蓝幼苗生长和生理指标的影响,以期为木醋液应用于菘蓝及其他药用植物的绿色、生态种植提供参考依据。结果表明:叶面喷施适宜浓度的木醋液显著促进菘蓝幼苗生长,缓解种子受PEG 6000胁迫对幼苗生长的抑制作用,提高叶绿素含量、光合速率、蒸腾速率、气孔导度和水分利用率,降低丙二醛(MDA)含量及超氧化物歧化酶(SOD)、过氧化物酶(POD)、过氧化氢酶(CAT)活性,以400倍液效果最显著。

关键词：木醋液菘蓝干旱幼苗

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Influence of tree species on soil microbial residue accumulation and distribution among soil aggregates in subtropical plantations of China

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Ecological Processes 2023年第3期12卷 15-25页

作者： yanli jing Xuechao Zhao Shengen Liu Peng Tian Zhaolin Sun Longchi Chen Qingkui Wang Ecology Security and Protection Key Laboratory of Sichuan Province Mianyang Teachers' College Huitong Experimental Station of Forest Ecology CAS Key Laboratory of Forest Ecology and Management Institute of Applied Ecology University of Chinese Academy of Sciences College of Biological and Pharmaceutical Sciences China Three Gorges University School of Forestry and Landscape Architecture Anhui Agricultural University

Background Microbial residues are significant contributors to stable soil organic carbon(SOC). Soil aggregates effectively protect microbial residues against decomposition; thus, microbial residue accumulation and distribution among soil aggregates determine long-term SOC stability. However, how tree species influence accumulation and distribution of soil microbial residues remains largely unknown, hindering the chances to develop policies for SOC management. Here, we investigated microbial residue accumulation and distribution in soil aggregates under four subtropical tree species(Cunninghamia lanceolata, Pinus massoniana, Michelia macclurei, and Schima superba) after 29 years of *** Accumulation of microbial residues in the 0–10 cm soil layer was 13.8–26.7% higher under S. superba than that under the other tree species. A structural equation model revealed that tree species affected the accumulation of microbial residues directly by altering fungal biomass. Additionally, tree species significantly affected microbial residue distribution and contribution to SOC in the top 20 cm soil. In particular, microbial residue distribution was 17.2–33.4% lower in large macro-aggregates(LMA) but 60.1–140.7% higher in micro-aggregates(MA) under S. superba than that under the other species in the 0–10 cm soil layer, and 14.3–19.0% lower in LMA but 43–52.1% higher in MA under S. superba than that under C. lanceolata and M. macclurei in the 10–20 cm soil layer. Moreover, the contribution of microbial residues to SOC was 44.4–47.5% higher under S. superba than under the other tree species. These findings suggest a higher stability of microbial residues under S. superba than that under the other studied tree *** Our results demonstrate that tree species influence long-term microbial persistence in forest soils by affecting accumulation and stabilization of microbial residues.

关键词： Tree species PLFA Amino sugar Soil aggregate Subtropical plantation

红色文化融入高校党建品牌建设的实践探索——以山西农业大学农学院为例

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大学（思政教研） 2024年第3期 192-196页

作者：荆彦丽荆立群山西农业大学农学院山西晋中030801

红色文化对促进高校党建品牌建设意义重大。现阶段基于红色文化的党建品牌数量和成功案例仍较少。针对当前红色文化融入高校党建品牌建设存在的党建品牌意识不强、顶层设计力度不大、品牌创新理念不够以及长效机制不足等问题,山西农业... 详细信息

红色文化对促进高校党建品牌建设意义重大。现阶段基于红色文化的党建品牌数量和成功案例仍较少。针对当前红色文化融入高校党建品牌建设存在的党建品牌意识不强、顶层设计力度不大、品牌创新理念不够以及长效机制不足等问题,山西农业大学农学院党委深入挖掘红色文化与高校党建品牌建设的内在契合,通过抓好顶层设计、挖掘红色资源、创新话语载体、构建长效机制和围绕中心工作等举措,创建了既具红色文化内涵,又体现学院特色的“红色·青春·兴农”党建品牌。探索了红色文化融入高校党建品牌建设的有效路径,为其他高校开展相关党建品牌建设提供了参考。

关键词：红色文化高校党建品牌

Influence of tree species on soil microbial residue accumulation and distribution among soil aggregates in subtropical plantations of China

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Ecological Processes 2023年 450-460页

Background Microbial residues are significant contributors to stable soil organic carbon(SOC). Soil aggregates effectively protect microbial residues against decomposition; thus, microbial residue accumulation and distribution among soil aggregates determine long-term SOC stability. However, how tree species influence accumulation and distribution of soil microbial residues remains largely unknown, hindering the chances to develop policies for SOC management. Here, we investigated microbial residue accumulation and distribution in soil aggregates under four subtropical tree species(Cunninghamia lanceolata, Pinus massoniana, Michelia macclurei, and Schima superba) after 29 years of *** Accumulation of microbial residues in the 0–10 cm soil layer was 13.8–26.7% higher under S. superba than that under the other tree species. A structural equation model revealed that tree species affected the accumulation of microbial residues directly by altering fungal biomass. Additionally, tree species significantly affected microbial residue distribution and contribution to SOC in the top 20 cm soil. In particular, microbial residue distribution was 17.2–33.4% lower in large macro-aggregates(LMA) but 60.1–140.7% higher in micro-aggregates(MA) under *** than that under the other species in the 0–10 cm soil layer, and 14.3–19.0% lower in LMA but 43–52.1%higher in MA under S. superba than that under C. lanceolata and M. macclurei in the 10–20 cm soil layer. Moreover,the contribution of microbial residues to SOC was 44.4–47.5% higher under S. superba than under the other tree species. These findings suggest a higher stability of microbial residues under S. superba than that under the other studied tree *** Our results demonstrate that tree species influence long-term microbial persistence in forest soils by affecting accumulation and stabilization of microbial residues.

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Different Decaying Wood Effects on Bacterial Diversity:Insights from Molecular Methods

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Phyton-International Journal of Experimental Botany 2021年第1期90卷 207-222页

作者： Mu Peng yanli jing Qiuyu Wang Shaopeng Yan College of Life Sciences Northeast Forestry UniversityHarbin150040China State Key Laboratory of Tree Genetics and Breeding Northeast Forestry UniversityHarbin150040China

Decaying wood is a novel key factor required for biodiversity and function of a forest,as it provides a good account of substrate and habitats for various ***,the bacterial diversity in decaying wood of Betula platyphylla was discussed through high throughput *** results showed that most of the obtained sequences belonged to the phyla Firmicutes,Proteobacteria,Bacteroidetes,Actinobacteria,Acidobacteria and *** community compositions in samples with higher moisture content were obviously different than that with lower content,which could be reflected by richness estimators,diversity indices,and cluster and heatmap *** three networks were non-random and possessed topological features of complex systems such as small-world and modularity ***,these networks exhibited distinct topological features,indicating the potential ability of extensive cooperative and competitive interactions in the decayed wood *** analysis showed that most bacterial phyla were mainly distributed in highermoisture *** obtained data will increase the knowledge of the complex bacterial diversity associated with dead wood,and lay a foundation for the bioconversion technology of plant cell walls using bacteria.

关键词： Decaying wood Betula platyphylla bacterial diversity moisture content network analysis

Multifunctional cellular carbon foams derived from chitosan toward self-cleaning, thermal insulation, and highly efficient microwave absorption properties

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Nano Research 2024年第3期17卷 927-938页

作者： Beibei Zhan yanling Hao Xiaosi Qi Yunpeng Qu Junfei Ding jing-liang Yang Xiu Gong yanli Chen Qiong Peng Wei Zhong College of Physics Guizhou Province Key Laboratory for Photoelectrics Technology and ApplicationGuizhou UniversityGuiyang 550025China Minzu Normal University of Xingyi Xingyi 562400China National Laboratory of Solid State Microstructures and Jiangsu Provincial Laboratory for NanoTechnology Nanjing UniversityNanjing 210093China

To adapt the practical demand,designing and constructing the multifunctional microwave absorbers(MAs)is the key future direction of research and ***,effective integrating the multiple functions into a single material remains a huge ***,cellular carbon foams(CCFs)with different porous structures were elaborately designed and fabricated in high efficiency through a facile continuous freeze-drying and carbonization processes using a sustainable biomass chitosan as the *** obtained results revealed that the thermal treated temperature and g-C_(3)N_(4) amount played a great impact on the carbonization degrees,pore sizes,and morphologies of CCFs,which led to their tunable electromagnetic(EM)parameters,improved conduction loss,and polarization loss *** to the special cellular structure,the designed CCFs samples simultaneously displayed the strong absorption capabilities,broad absorption bandwidths,and thin matching ***,the as-prepared CCFs exhibited the strong hydrophobicity and good thermal insulation,endowing its attractive functions of self-cleaning and thermal ***,our findings not only presented a facile approach to produce different porous structures of CCFs,but also provided an effective strategy to develop multifunctional high-performance MAs on basis of three-dimensional CCFs.

关键词： multifunctional microwave absorbers carbon foams cellular structure self-cleaning thermal insulation

Effects of root dominate over aboveground litter on soil microbial biomass in global forest ecosystems

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Forest Ecosystems 2021年第3期8卷 504-512页

作者： yanli jing Peng Tian Qingkui Wang Weibin Li Zhaolin Sun Hong Yang Huitong Experimental Station of Forest Ecology CAS Key Laboratory of Forest Ecology and ManagementInstitute of Applied EcologyChinese Academy of SciencesShenyang 110016China School of Forestry&Landscape Architecture Anhui Agricultural UniversityHefei 230036China State Key Laboratory of Grassland Agro-ecosystems/Key Laboratory of Grassland Livestock Industry Innovation Ministry of Agriculture/College of Pastoral Agriculture Science and TechnologyLanzhou UniversityLanzhou 730020China Institute of Applied Ecology Chinese Academy of SciencesShenyang 110016China

Background:Inputs of above-and belowground litter into forest soils are changing at an unprecedented rate due to continuing human disturbances and climate *** drive the soil carbon(C)cycle,but the roles of above-and belowground litter in regulating the soil microbial community have not been evaluated at a global ***:Here,we conducted a meta-analysis based on 68 aboveground litter removal and root exclusion studies across forest ecosystems to quantify the roles of above-and belowground litter on soil microbial community and compare their relative ***:Aboveground litter removal significantly declined soil microbial biomass by 4.9%but root exclusion inhibited it stronger,up to 11.7%.Moreover,the aboveground litter removal significantly raised fungi by 10.1%without altering bacteria,leading to a 46.7%increase in the fungi-to-bacteria(F/B)***,root exclusion significantly decreased the fungi by 26.2%but increased the bacteria by 5.7%,causing a 13.3%decrease in the F/B ***,root exclusion significantly inhibited arbuscular mycorrhizal fungi,ectomycorrhizal fungi,and actinomycetes by 22.9%,43.8%,and 7.9%,*** negative effects of aboveground litter removal on microbial biomass increased with mean annual temperature and precipitation,whereas that of root exclusion on microbial biomass did not change with climatic factors but amplified with treatment *** importantly,greater effects of root exclusion on microbial biomass than aboveground litter removal were consistent across diverse forest biomes(expect boreal forests)and ***:These data provide a global evidence that root litter inputs exert a larger control on microbial biomass than aboveground litter inputs in forest *** study also highlights that changes in above-and belowground litter inputs could alter soil C stability differently by shifting the microbial community structure in the opposite direction.T

关键词： Forest ecosystems soil microorganisms Fungi Litter Root Carbon input Meta-analysis

Photosynthate supply drives soil respiration of Fraxinus mandshurica seedlings in northeastern China： evidences from a shading and nitrogen addition experiment

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Journal of Forestry Research 2016年第6期27卷 1271-1276页

作者： yanli jing Dexin Guan Jiabing Wu Anzhi Wang Changjie Jin Fenghui Yuan Key Laboratory of Forest Ecology and Management Institute of Applied Ecology Chinese Academy of SciencesShenyang 110164 People's Republic of China University of Chinese Academy of Sciences Beijing 100049People's Republic of China

Improved understanding of the link between photosynthesis and below-ground processes is needed to better understand ecosystem carbon （C） cycling and its feedback to climate change. We conducted a short-term shading and nitrogen （N） addition experiment from June to September 2013 to investigate the effect of photosynthate supply by Manchurian Ash （Fraxinus mandshurica） seed- lings on soil respiration （SR）. Shading significantly reduced SR in early and middle growing season, but not in late growing season, leading to a decrease in mean SR by 24 % in N-unfertilized treatments. N addition increased mean SR by 42 % in un-shaded treatment. The stimulation of SR was largely attributed to accelerated autotrophic respiration by increasing photosynthesis, leaf area index and belowground biomass. Shading reduced mean SR by 32 % in N addition treatment. The strengthened shading effect on SR resulted from N addition was because of more photosynthates supply at low soil temperature. Our findings highlight the predominance of photosynthates supply in regulating the responses of C cycling to global change.

关键词： Autotrophic respiration Carbon Fertilization Shading Substrate supply

我国科技期刊刊群融合出版一体化发展路径研究

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中国科技期刊研究 2024年第5期35卷 629-634页

作者：韩婧韩燕丽清华大学出版社《科技与出版》杂志社北京海淀100084 有科期刊出版(北京)有限公司北京海淀100088

【目的】探索我国科技期刊刊群出版深度融合的一体化发展路径。【方法】应用调查问卷和文献调研,对国内外典型刊群的融合出版情况进行调研,对比分析我国科技期刊刊群在内容、渠道、平台、经营、管理等方面的融合情况。【结果】科技期刊... 详细信息

【目的】探索我国科技期刊刊群出版深度融合的一体化发展路径。【方法】应用调查问卷和文献调研,对国内外典型刊群的融合出版情况进行调研,对比分析我国科技期刊刊群在内容、渠道、平台、经营、管理等方面的融合情况。【结果】科技期刊刊群融合转型有成效,实力强的刊群基本完成深度融合,但整体上成效不够显著,且发展极不平衡。【结论】科技期刊刊群在融合出版过程中应该秉持一体化发展的理念,在顶层设计前考虑内与外、建设平台与运营端口的关系,按照媒体技术、内容生产流程、服务功能一体化的路径实施融合出版,实施过程中要始终贯彻以人为本、适度建设的理念。

关键词：科技期刊刊群融合出版一体化