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Tree species identity and interaction determine vertical forest structure in young planted forests measured by terrestrial laser scanning

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Forest Ecosystems 2024年第3期11卷 266-275页

作者： Mengxi wang Lander Baeten Frieke Van Coillie Kim Calders Kris Verheyen Quentin Ponette Haben Blondeel Bart Muys john Armston Hans Verbeeck Q-ForestLab Department of EnvironmentFaculty of Bioscience EngineeringGhent UniversityBelgium Forest&Nature Lab Department of EnvironmentFaculty of Bioscience EngineeringGhent UniversityBelgium Earth and Life Institute Université Catholique de Louvain(UCLouvain)Louvain-la-NeuveBelgium Department of Earth&Environmental Sciences KU LeuvenBelgium Department of Geographical Sciences University of MarylandCollege ParkMDUSA

Vertical forest structure is closely linked to multiple ecosystem characteristics,such as biodiversity,habitat,and *** tree species in planted forests has the potential to create diverse vertical forest structures due to the different physiological and morphological traits of the composing tree ***,the relative importance of species richness,species identity and species interactions for the variation in vertical forest structure remains unclear,mainly because traditional forest inventories do not observe vertical stand structure in *** laser scanning(TLS),however,allows to study vertical forest structure in an unprecedented ***,we used TLS single scan data from 126 plots across three experimental planted forests of a largescale tree diversity experiment in Belgium to study the drivers of vertical forest *** plots were 9–11years old young pure and mixed forests,characterized by four levels of tree species richness ranging from monocultures to four-species mixtures,across twenty composition *** generated vertical plant profiles from the TLS data and derived six stand structural *** mixed models were used to test the effect of species richness on structural *** a hierarchical diversity interaction modelling framework,we further assessed species identity effect and various species interaction effects on the six stand structural *** results showed that species richness did not significantly influence most of the stand structure variables,except for canopy height and foliage height *** identity on the other hand exhibited a significant impact on vertical forest structure across all *** interaction effects were observed to be site-dependent due to varying site conditions and species pools,and rapidly growing tree species tend to dominate these ***,our results highlighted the importance of considering both species identity an

关键词： TreeDivNet FORBIO Stand structural complexity Terrestrial laser scanning Vertical forest structure Tree diversity Planted forests

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支部建在项目上:党建引领国企高质量发展的复合逻辑

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中共天津市委党校学报 2024年第1期26卷 14-22页

作者：王琼吴佳西安交通大学马克思主义学院陕西西安710049 中共中央党校(国家行政学院)应急管理教研部北京100091

国有企业通过建构开放式党组织,联结与项目生产经营和党建相关的企业、政府和社会等相关主体,通过“3+N”项目党建的统领机制,塑造统筹国企经济性、行政性和公益性多重属性的复合逻辑。“支部建在项目上”是依附于生产力全过程开展党建... 详细信息

国有企业通过建构开放式党组织,联结与项目生产经营和党建相关的企业、政府和社会等相关主体,通过“3+N”项目党建的统领机制,塑造统筹国企经济性、行政性和公益性多重属性的复合逻辑。“支部建在项目上”是依附于生产力全过程开展党建的实践创举,从政治引领的层面提供了意识形态的规定性,从微观的操作层面赋予现代企业高质量发展的科学性和优越性。这种中国特色的党建机制从纵向上打通了基层党组织的“最后一公里”,从横向上实现了部门协同与项目联动,并在生产运营过程中开展全员动员与重点突破,将社会主义企业制度优势转化为生产经营、企业治理和社会服务的高水平效能。

关键词：项目党支部国企发展复合逻辑中国经验

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Color liquid crystal grating based color holographic 3D display system with large viewing angle

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Light(Science & Applications) 2024年第1期13卷 103-112页

作者： Di wang Yi-Long Li Fan Chu Nan-Nan Li Zhao-Song Li Sin-Doo Lee Zhong-Quan Nie Chao Liu qiong-Hua wang School of Instrumentation and Optoelectronic Engineering Beihang UniversityBeijing 100191China State Key Laboratory of Virtual Reality Technology and Systems Beihang UniversityBeijing 100191China Display Technology Research Center Seoul National UniversityGwanak-ro 1Gwanak-guSeoul 08826Republic of Korea Key Lab of Advanced Transducers and Intelligent Control System Ministry of EducationTaiyuan University of TechnologyTaiyuan 030024China

Holographic 3D display is highly desirable for numerous applications ranging from medical treatments to military ***,it is challenging to simultaneously achieve large viewing angle and high-fidelity color reconstruction due to the intractable constraints of existing ***,we conceptually propose and experimentally demonstrate a simple and feasible pathway of using a well-designed color liquid crystal grating to overcome the inevitable chromatic aberration and enlarge the holographic viewing angle,thus enabling large-viewing-angle and color holographic 3D *** use of color liquid crystal grating allows performing secondary diffraction modulation on red,green and blue reproduced images simultaneously and extending the viewing angle in the holographic 3D display *** principle,a chromatic aberration-free hologram generation mechanism in combination with the color liquid crystal grating is proposed to pave the way for on such a superior holographic 3D *** proposed system shows a color viewing angle of~50.12°,which is about 7 times that of the traditional system with a single spatial light *** work presents a paradigm for achieving desirable holographic 3D display,and is expected to provide a new way for the wide application of holographic display.

关键词： holographic angle crystal

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Synergistic effect of additional anlotinib and immunotherapy as second‐line or later‐line treatment in pancreatic cancer:A retrospective cohort study

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Cancer Innovation 2024年第4期3卷 57-66页

作者： Boyu Qin Qi Xiong Lingli Xin Ke Li Weiwei Shi Qi Song qiong Sun Jiakang Shao Jing Zhang Xiao Zhao Jinyu Liu Jinliang wang Bo Yang Department of Oncology The Fifth Medical Center of Chinese PLA General HospitalBeijingChina Department of Gynaecology and Obstetrics PLA Rocket Force Characteristic Medical CenterBeijingChina Department of Graduate Administration Chinese PLA General HospitalBeijingChina Department of Oncology The First Medical Center of Chinese PLA General HospitalBeijingChina Department of Pharmacy Medical Supplies Center of Chinese PLA General HospitalBeijingChina

Background:Pancreatic ductal adenocarcinoma(PDAC)is in urgent need of a second‐line or later‐line treatment *** aimed to analyze the efficacy and safety of additional anlotinib,specifically anlotinib in combination with immunotherapy,in patients with PDAC who have failed first‐line ***:Patients with pathological diagnosis of PDAC were additionally treated with anlotinib,and some patients were treated with anti‐PD‐1 agents at the same time,which could be retrospectively *** efficacy and safety of additional anlotinib were ***:A total of 23 patients were *** patients treated with additional anlotinib,the overall median progression‐free survival(PFS)was 1.8 months and the median overall survival(OS)was 6.3 months,regardless of anti‐PD‐1 *** patients receiving additional anlotinib in combination with anti‐PD‐1 agents,median PFS and OS were 1.8 and 6.5 months,*** events(AEs)were observed in 16 patients(69.6%).In patients treated with additional anlotinib,the majority of AEs were grade 1–*** analysis revealed that patients with baseline red blood cell distribution width(RDW)<14%treated with additional anlotinib plus anti‐PD‐1 agents had significantly longer OS than patients with baseline RDW≥14%(p=0.025).Patients with additional anlotinib plus anti‐PD‐1 agents as second‐line therapy had a longer OS than those treated as later‐line therapy(p=0.012).Multivariate analysis showed that baseline RDW was the only independent risk factor for OS(p=0.042).Conclusion:The combination of anlotinib and immunotherapy represents an effective add‐on therapy with tolerable AEs as second‐or later‐line therapy in patients with PDAC,particularly in patients with baseline RDW<14%.

关键词： anlotinib efficacy immunotherapy independent risk factors pancreatic ductal adenocarcinoma

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注射用益气复脉(冻干)对冠心病射血分数保留的心力衰竭患者N末端B型脑钠肽前体、无创心功能指标及生活质量的影响

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药物评价研究 2024年第5期47卷 1093-1099页

作者：王琼许丹焰云南省阜外心血管病医院心内科云南昆明650000 中南大学湘雅二医院心内科湖南长沙410000

目的观察注射用益气复脉(冻干)对冠心病射血分数保留的心力衰竭(HFpEF)患者的N末端B型脑钠肽前体(NT-proBNP)、无创心功能相关指标、明尼苏达心力衰竭生活质量评分(MLHFQ)的影响。方法选择128例2021年12月—2023年2月在中南大学湘雅二... 详细信息

目的观察注射用益气复脉(冻干)对冠心病射血分数保留的心力衰竭(HFpEF)患者的N末端B型脑钠肽前体(NT-proBNP)、无创心功能相关指标、明尼苏达心力衰竭生活质量评分(MLHFQ)的影响。方法选择128例2021年12月—2023年2月在中南大学湘雅二医院心内科住院的HFpEF患者为研究对象,随机分为对照组及试验组,最终纳入对照组60例、试验组61例。对照组予常规抗心衰治疗,试验组在常规治疗的基础上加用注射用益气复脉(冻干),每次5.2 g,用250 mL 5%葡萄糖注射液或0.9%氯化钠注射液稀释后静脉滴注,每日1次,两组均连续治疗7 d。观察两组治疗前后NT-proBNP、无创心功能相关指标、MLHFQ水平变化及安全性。结果干预7 d后,试验组NT-proBNP水平、无创心功能指标中的射血前期(PEP)、MLHFQ评分均低于对照组,差异均具有统计学意义(P<0.05)。两组不良反应发生情况无显著差异(P<0.05)。结论注射用益气复脉(冻干)可改善HFpEF患者的NT-proBNP、无创心功能指标PEP和MLHFQ评分,且未见明显临床不良反应,可用于治疗冠心病HFpEF患者。

关键词：注射用益气复脉(冻干) 射血分数保留心力衰竭冠心病 N末端B型脑钠肽前体(NT-proBNP) 无创心功能相关指标明尼苏达心力衰竭生活质量评分

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New dating indicates intermittent human occupation of the Nwya Devu Paleolithic site on the high-altitude central Tibetan Plateau during the past 45,000 years

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Science China Earth Sciences 2024年第2期67卷 531-551页

作者： Junyi GE Xiaoling ZHANG Shejiang wang Linhui LI Wei HE Yingshuai JIN Peiqi ZhANG Bing XU Chenglong DENG john WOLSEN Zhengtang GUO Xing GAO Institute of Vertebrate Paleontology and Paleoanthropology Chinese Academy of SciencesBeijing 100044China University of the Chinese Academy of Sciences Beijing 100049China Tibetan Cultural Relics Conservation Institute Lhasa 850000China Key Laboratory of Cenozoic Geology and Environment Institute of Geology and GeophysicsChinese Academy of Sciences.Beijing 100029China State Key Laboratory of Lithospheric Evolution Institute of Geology and GeophysicsChinese Academy of SciencesBeijing100029China School of Anthropology University of ArizonaTucson85721USA

The timing and mechanisms of the human occupation of the demanding high-altitude Tibetan Plateau environment are of great ***,we report on our reinvestigations and dating of the Nwya Devu site,located nearly 4600 meters above sea level on the central Tibetan Plateau.A new microblade techno-complex was identified on a lower lake shore at this site,distinct from the previously reported blade tool *** two lithic assemblages were dated to 45.6±2.6 and10.3±0.5 ka using optically stimulated luminescence and accelerator mass spectrometry^(14)C *** represent,respectively,the earliest known Paleolithic and microlithic sites on the interior Tibetan Plateau,indicating multiple occupation episodes of hunter-gatherers during the past 45 *** studies reveal that relatively stable depositional conditions and a paleoenvironment characterized by a comparatively warm climate facilitated these multiple occupations at Nwya *** contemporaneous occurrence of the Upper Paleolithic blade technology on the Tibetan Plateau and most of Eurasia between 50 and 40 ka indicates rapid,large-scale dispersals of humans that profoundly affected human demography on a large *** new archaeological evidence and previously reported genetic data,we conclude that the Tibetan Plateau provided a relatively stable habitat for Upper Paleolithic hunter-gatherers,which may have contributed to the complex and multiple-origin gene pool of present-day Tibetans.

关键词： Tibetan Plateau Paleolithic Nwya Devu High-altitude adaptation Microblade industry Early Upper Paleolithic OSLdating AMS^(14)C dating

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Solid-state Circuit Breaker Based on Cascaded Normally-on SiC JFETs for Medium-voltage DC Distribution Networks

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Protection and Control of Modern Power Systems 2024年第2期9卷 32-46页

作者： Dong He Haohui Zhou Zheng Lan Wei wang Jinhui Zeng Xueping Yu Z.john Shen Chongqing University of Posts and Telecommunications ChongqingChina Henan Polytechnic University JiaozuoChina College of Electrical and Information Engineering Hunan University of TechnologyZhuzhou 412007China Hunan University ChangshaChina College of Electrical and Information Engineering Hunan UniversityChangshaChina College of Electrical Engineering Three Gorges University Rensselaer Polytechnic Institute TroyNYUSA

Solid-state circuit breakers(SSCBs)are critical components in the protection of medium-voltage DC distribution networks to facilitate arc-free,fast and reliable isolation of DC ***,limited by the capacity of a single semiconductor device,using semi-conductor-based SSCBs at high voltage is *** study presents the details of a 1.5 kV,63 A medi-um-voltage SSCB,composed primarily of a solid-state switch based on three cascaded normally-on silicon car-bide(SiC)junction field-effect transistors(JFETs)and a low-cost programmable gate drive *** and static voltage sharing among the cascaded SiC JFETs of the SSCB during fault isolation is realized using the pro-posed gate drive *** selection conditions for the key parameters of the SSCB gate driver are also ***,an improved pulse-width modulation cur-rent-limiting protection solution is proposed to identify the permanent overcurrent and transient inrush current associated with capacitive load startup in a DC distribu-tion *** the developed SSCB prototype and the fault test system,experimental results are obtained to validate the fault response performance of the *** Terms—Solid-state circuit breaker,DC distribu-tion network,SiC JFET,voltage balancing,inrush current.

关键词： Solid-state circuit breaker DC distribu-tion network SiC JFET voltage balancing inrush current

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智慧图书馆与智慧档案馆建设的经验互鉴

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山西档案 2024年第3期 171-174页

作者：何雯王琼西南医科大学泸州646000

智慧图书馆与智慧档案馆的建设是信息化时代图书档案事业发展的必然趋势。从资源、服务、技术等方面分析智慧图书馆与智慧档案馆建设的有利经验和不利经验,并基于此提出智慧图书馆与智慧档案馆建设的借鉴与协同策略,分为技术协同、资源... 详细信息

智慧图书馆与智慧档案馆的建设是信息化时代图书档案事业发展的必然趋势。从资源、服务、技术等方面分析智慧图书馆与智慧档案馆建设的有利经验和不利经验,并基于此提出智慧图书馆与智慧档案馆建设的借鉴与协同策略,分为技术协同、资源协同和服务协同三个方面,以期实现两者之间的经验互鉴,促进图书与档案事业的共同进步。

关键词：智慧图书馆智慧档案馆档案馆建设

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Genome assembly of autotetraploid Actinidia arguta highlights adaptive evolution and enables dissection of important economic traits

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Plant Communications 2024年第6期5卷 173-192页

作者： Xue-Mei Lu Xiao-Fen Yu Guo-Qiang Li Ming-Hao Qu Huan wang Chuang Liu Yu-Ping Man Xiao-Han Jiang Mu-Zi Li Jian wang Qi-Qi Chen Rui Lei Cheng-Cheng Zhao Yun-Qiu Zhou Zheng-wang Jiang Zuo-Zhou Li Shang Zheng Chang Dong Bai-Lin wang Yan-Xiang Sun Hui-Qin Zhang Jie-Wei Li Quan-Hui Mo Ying Zhang Xin Lou Hai-Xu Peng Ya-Ting Yi He-Xin wang Xiu-Jun Zhang Yi-Bo wang Dan wang Li Li qiong Zhang Wen-Xia wang Yongbo Liu Lei Gao Jin-Hu Wu Yan-Chang wang CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture Wuhan Botanical GardenChinese Academy of SciencesWuhanHubeiChina Key Laboratory of Western China’s Environmental Systems(Ministry of Education) College of Earth and Environmental SciencesLanzhou UniversityLanzhouGansuChina College of Life Sciences University of Chinese Academy of SciencesBeijingChina Wuhan Frasergen Bioinformatics Co. LtdWuhanHubeiChina Institute of Soil and Fertilizer Anhui Academy of Agricultural SciencesHefeiChina College of Agricultural Sciences Xichang UniversityXichangSichuanChina Department of Horticulture Heilongjiang Academy of Agricultural SciencesHarbinHeilongjiangChina College of Life Sciences Langfang Normal UniversityLangfangHebeiChina Institute of Horticulture Zhejiang Academy of Agricultural SciencesHangzhouZhejiangChina Guangxi Institute of Botany Chinese Academy of SciencesGuilinGuangxiChina Xi’an Botanical Garden of Shaanxi Province Institute of Botany of Shaanxi ProvinceXi’anShaanxiChina Institute of Modern Agricultural Research Dalian UniversityDalianLiaoningChina Bioinformatics Center College of Plant Science and TechnologyBeijing University of AgricultureBeijingChina College of Agriculture Eastern Liaoning UniversityDandongLiaoningChina Dalian Institute of Chemical Physics Chinese Academy of SciencesDalianLiaoningChina State Environmental Protection Key Laboratory of Regional Eco-process and Function Assessment Chinese Research Academy of Environmental SciencesBeijingChina Hubei Hongshan Laboratory WuhanHubeiChina The New Zealand Institute for Plant and Food Research Limited AucklandNew Zealand

Actinidia arguta,the most widely distributed Actinidia species and the second cultivated species in the genus,can be distinguished from the currently cultivated Actinidia chinensis on the basis of its small and smooth fruit,rapid softening,and excellent cold *** evolution of tetraploid Actinidia species and the genetic basis of their important agronomic traits are still ***,we generated a chromosome-scale genome assembly of an autotetraploid male *** *** genome assembly was 2.77 Gb in length with a contig N50 of 9.97 Mb and was anchored onto 116 *** and clustering of 101 geographically representative accessions showed that they could be divided into two geographic groups,Southern and Northern,which first diverged 12.9 million years *** underwent two prominent expansions and one demographic bottleneck from the midPleistocene climate transition to the late *** genomics studies using paleoclimate data enabled us to discern the evolution of the species’adaptation to different historical *** genes(AaCEL1,AaPME1,and AaDOF1)related to flesh softening were identified by multi-omics analysis,and their ability to accelerate flesh softening was verified through transient expression assays.A set of genes that characteristically regulate sexual dimorphism located on the sex chromosome(Chr3)or autosomal chromosomes showed biased expression during stamen or carpel *** chromosome-level assembly of the autotetraploid *** genome and the genes related to important agronomic traits will facilitate future functional genomics research and improvement of ***.

关键词： kiwiberry dioecism adaptive evolution paleoclimate GEA rapid softening

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生草模式对枣园土壤真菌群落结构组成与共线性网络的影响

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生态学报 2024年第18期44卷 8423-8433页

作者：王守乐王中堂李盼张琼养分资源高效利用全国重点实验室山东省农业科学院/山东省果树研究所泰安271000 麦盖提县红枣产业研究院喀什844000

果园生草能改变土壤微环境物理化学性状,增强植物间根系-土壤-根系相互作用,这可能会影响土壤真菌群落结构组成和功能稳定。本研究以5 a枣品种‘金丝4号’为研究对象,在枣园行间设置清耕、种植自然生草、种植长柔毛野豌豆3种耕作模式,... 详细信息

果园生草能改变土壤微环境物理化学性状,增强植物间根系-土壤-根系相互作用,这可能会影响土壤真菌群落结构组成和功能稳定。本研究以5 a枣品种‘金丝4号’为研究对象,在枣园行间设置清耕、种植自然生草、种植长柔毛野豌豆3种耕作模式,通过土壤高通量ITS测序,旨在分析生草对枣园土壤真菌群落结构组成与共现性网络的影响。结果表明,长柔毛野豌豆组和自然生草组增加枣树根际土壤真菌群落Shannon指数和Simpson指数,但是降低了行间土壤真菌多样性。三种耕作模式下枣园真菌群落组成均以子囊菌门、担子菌门和被孢霉菌门为主,高达79.53%—93.24%。相对清耕组,长柔毛野豌豆组促进枣树根际土壤被孢霉菌门的相对丰度,抑制子囊菌门的相对丰度,而自然生草组增加子囊菌门的相对丰度,降低稀有菌门的相对丰度。冗余分析表明长柔毛野豌豆组土壤真菌群落多样性与土壤养分呈现正相关关系。Funguild分析表明种植长柔毛野豌豆明显有利于根际土壤腐生营养型真菌的繁殖,但抑制共生营养型真菌的相对丰度。共现性网络分析发现长柔毛野豌豆明显增加枣园土壤真菌网络节点与连接线数量,增强土壤真菌群落间互作关系及功能稳定性。本研究主要分析枣园生草对土壤真菌群落结构组成与功能网络的影响,为枣园生草的推广和应用提供科学依据。

关键词：长柔毛野豌豆真菌共现性网络枣

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