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Journal of Forestry Research 2024年第2期35卷 134-145页

作者： Teng Li jianfeng peng Tsun Fung Au Jinbao Li School of Geography and Remote Sensing Guangzhou UniversityGuangzhou 510006People’s Republic of China College of Geography and Environmental Science Henan UniversityKaifeng 475004People’s Republic of China Institute for Global Change Biology School for Environment and SustainabilityUniversity of MichiganAnn ArborMIUSA Department of Ecology and Evolutionary Biology University of MichiganAnn ArborMIUSA Department of Geography University of Hong KongHong Kong SARPeople’s Republic of China HKU Shenzhen Institute of Research and Innovation Shenzhen 518057People’s Republic of China

Minimum temperatures have remarkable impacts on tree growth at high-elevation sites on the Tibetan Plateau,but the shortage of long-term and high-resolution paleoclimate records inhibits understanding of recent minimum temperature *** this study,a warm season(April–September)reconstruction is presented for the past 467 years(1550–2016)based on Sabina tibetica ring-width chronology on the Lianbaoyeze Mountain of the central eastern Tibetan *** warm periods and eight cold periods were ***-term minimum temperature variations revealed a high degree of coherence with nearby *** correlations between our reconstruction and global sea surface temperatures suggest that warm season minimum temperature anomalies in the central eastern Tibetan Plateau were strongly influenced by large-scale ocean atmospheric circulations,such as the El Ni?o-Southern Oscillation and the Atlantic Multidecadal Oscillation.

关键词： Tree-ring analysis Sabina tibetica Minimum temperatures Central eastern Tibetan Plateau Climate change

Stability assessment of tree ring growth of Pinus armandii Franch in response to climate change based on slope directions at the Lubanling in the Funiu Mountains,China

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Journal of Forestry Research 2024年第3期35卷 197-208页

作者： Jinkuan Li jianfeng peng Xiaoxu Wei Meng peng Xuan Li Yameng Liu Jiaxin Li College of Geography and Environmental Science Henan UniversityKaifeng 475004People’s Republic of China Key Laboratory of Earth System Observation and Simulation of Henan Province Kaifeng 475004People’s Republic of China

Global warming will affect growth strategies and how trees will *** compare the response of tree radial growth to climate warming in different slope directions,samples of Pinus armandii Franch were collected and treering chronologies developed on northern and western slopes from the Lubanling in the Funiu *** analyses showed that two chronologies were mainly limited by temperatures in the previous June–August and the combination of temperatures and moisture in the current May–*** difference of the climate response to slopes was small but not *** growth of the LBL01 site on the northern slope was affected by the combined maximum and minimum temperatures,while that of the LBL02 site was affected by maximum *** regards to moisture,radial growth of the trees on the north slope was influenced by the relative humidity in the current May–July,while on the western slope,it was affected by the relative humidity in the previous June–August,the current May–July and the precipitation in the current May–*** the change in climate,the effects of the main limiting factors on growth on different slopes were visible to a certain extent,but the differences in response of trees on different slopes gradually decreased,which might be caused by factors such as different slope directions and the change in diurnal temperature *** results may provide information for forest protection and ecological construction in this region,and a scientific reference for future climate reconstruction.

关键词： Tree ring width Lubanling Pinus armandii Franch Slope direction Climate response

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Dendroclimatological study of Sabina saltuaria and Abies faxoniana in the mixed forests of the Qionglai Mountains,eastern Tibetan Plateau

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Journal of Forestry Research 2024年第1期35卷 72-82页

作者： Teng Li jianfeng peng Tsun Fung Au Jingru Li Jinbao Li Yue Zhang School of Geography and Remote Sensing Guangzhou UniversityGuangzhou 510006People’s Republic of China College of Geography and Environmental Science Henan UniversityKaifeng 475004People’s Republic of China Institute for Global Change Biology School for Environment and SustainabilityUniversity of MichiganAnn ArborMIUSA Department of Ecology and Evolutionary Biology University of MichiganAnn ArborMIUSA Department of Geography University of Hong KongHong Kong SARPeople’s Republic of China HKU Shenzhen Institute of Research and Innovation Shenzhen 518057People’s Republic of China

Tree-ring chronologies were developed for Sabina saltuaria and Abies faxoniana in mixed forests in the Qionglai Mountains of the eastern Tibetan ***-growth relationship analysis indicated that the two co-exist-ing species reponded similarly to climate factors,although *** was more sensitive than *** strong-est correlation was between *** chronology and regional mean temperatures from June to *** on this relationship,a regional mean temperature from June to November for the period 1605-2016 was *** explained 37.3%of the temperature variance during th period *** major warm periods and five major cold periods were *** analysis detected significant interannual and multi-decadal *** also revealed the influence of the Atlantic Multi-decadal Oscillation,confirming its importance on climate change on the eastern Tibetan Plateau.

关键词： Tree-ring analysis Mixed forests Dendroclimatology Qionglai Mountains

Climate-growth relationships of Pinus tabuliformis along an altitudinal gradient on Baiyunshan Mountain,Central China

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Journal of Forestry Research 2024年第1期35卷 202-212页

作者： Xiaoxu Wei jianfeng peng Jinbao Li Jinkuan Li Meng peng Xuan Li Yameng Liu Jiaxin Li College of Geography and Environmental Science Henan UniversityKaifeng 475004People’s Republic of China Key Laboratory of Earth System Observation and Simulation of He’nan Province Kaifeng 475004People’s Republic of China Department of Geography University of Hong KongPokfulamHong Kong SARPeople’s Republic of China HKU Shenzhen Institute of Research and Innovation Shenzhen 518057People’s Republic of China

A set of standard chronologies for tree-ring width(TRW),earlywood width(EWW)and latewood width(LWW)in Pinus tabuliformis *** an altitudi-nal gradient(1450,1400,and 1350 m a.s.l.)on Baiyunshan Mountain,Central China to analyze the effect of varying temperature and precipitation on growth along the *** analyses showed that at all three altitudes and the TRW and EWW chronologies generally had signifi-cant negative correlations with mean and maximum tem-peratures in the current April and May and with minimum temperatures in the prior July and August,but significant positive correlations with precipitation in the current *** were generally significantly negative between LWW chronologies and all temperatures in the prior July and August,indicating that the prior summer temperature had a strong lag effect on the growth of *** that increased with *** correlation with the standard-ized precipitation evapotranspiration index(SPEI)confirmed that wet conditions in the current May promoted growth of TR and EW at all *** altitudinal differences were also found;at 1400 m,there were significant positive correlations between EWW chronologies and SPEI in the current April and significant negative correlations between LWW chronologies and SPEI in the current September,but these correlations were not significant at 1450 *** 1350 m,there were also significant negative correlations between the TRW and the EWW chronologies and SPEI in the prior October and the current July and between LWW chronology and SPEI in the current August,but these cor-relations were not significant at 1400 *** correlation results showed a stable response of EWW in relation to the SPEI in the current May at all three altitudes and of LWW to maximum temperature in the prior July-August at 1400 m from 2002 to *** EWW chronology at 1400 m and the LWW chronology at 1450 m were identified as more suitable for climate reconstruction.T

关键词： Tree rings Climate response Altitudinal gradient Baiyunshan Mountain Pinus tabuliformis Carr

Microenvironmental effects on growth response of Pinus massoniana to climate at its northern boundary in the Tongbai Mountains,Central China

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Journal of Forestry Research 2024年第1期35卷 44-57页

作者： jianfeng peng Jiayue Cui Jinbao Li Meng peng Yongtao Ma Xiaoxu Wei Jinkuan Li Xuan Li Yamen Liu Jiaxin Li College of Geography and Environmental Science Henan UniversityKaifeng 475004People’s Republic of China Key Laboratory of Earth System Observation and Simulation of Henan Province Kaifeng 475004People’s Republic of China Department of Geography University of Hong KongHong KongSARPeople’s Republic of China HKU Shenzhen Institute of Research and Innovation Shenzhen 518057People’s Republic of China Henan Academy of Forestry Zhengzhou 450000People’s Republic of China

The Tongbai Mountains is an ecologically sensi-tive region and the northern boundary of Pinus massoniana *** analyze the effect of different microenvironments on tree growth response to climate factors,we developed standard chronologies for earlywood width(EWW),late-wood width(LWW),and total ring width(TRW)of *** at two sampling sites on slopes with different orientations,then analyzed characteristics of the chronolo-gies and their correlations with climate variables from five stations in the region and with a regional normalized differ-ence vegetation index(NDVI).Statistical results showed that the TRW/EWW/LWW chronology consistency and charac-teristics(mean sensitivity,signal to noise ratio,expressed population signal)for trees growing on the southeastern slope were much higher than for trees on the northeastern *** indicated that temperature in current March and August has a significant positive effect on TRW/EWW/LWW formation,and the effect on the northeastern slope was weaker than on the southeastern *** to temperature,precipitation has more complicated effects on tree growth,but the effect on the northeastern slope was also generally weaker than on the southeastern ***-wise linear regression analyses showed that temperature in August was the main limiting factor at the two sampling ***,the response of tree growth on the southeast-ern slope as determined by the NDVI is better than on the northeastern slope,and the TRW/EWW/LWW chronologies for the southeastern slope explained over 50%of the total NDVI variances in ***,the results indicate that the difference in the climate response of *** at two sampling sites is clearly caused by differences in the microenvironment,and such differences should be properly considered in future studies of forest dynamics and climate reconstructions.

关键词： Tree-rings Pinus massoniana lamb Microenvironment Radial growth Climate-growth response

使命驱动与事业牵引“双轮驱动”科学帅才辈出机制研究——以中国运载火箭技术研究院为例

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当代经济管理 2024年第10期46卷 46-64页

作者：梁荣成彭剑锋中国人民大学劳动人事学院北京100872

高水平的科技自立自强是实现奋斗目标的关键,战略性人才是引领国家科技发展的重要力量,特别是那些能够满足国家重大战略发展需求的战略科学家——科学帅才。然而现实是诸多尖端科学技术被“卡脖子”——科学帅才还严重不足。对此,文章... 详细信息

高水平的科技自立自强是实现奋斗目标的关键,战略性人才是引领国家科技发展的重要力量,特别是那些能够满足国家重大战略发展需求的战略科学家——科学帅才。然而现实是诸多尖端科学技术被“卡脖子”——科学帅才还严重不足。对此,文章结合中国运载火箭技术研究院(航天一院)的人才管理实践,基于系统工程理论,从人力资源视角出发系统探讨了“双轮驱动”科学帅才辈出的形塑机制。结果发现:科学帅才辈出得益于以使命驱动与事业牵引为核心的两大动力机制。前者是“道”的层面,属于内在推力——激励机制,侧重于组织文化层面的熏陶;后者是“术”的层面,属于外在拉力——牵引机制,侧重于人才土壤层面的培育。在使命驱动推力机制下,组织通过“党建统筹、精神引领、气质独特、氛围简单”四大支点来营造科学帅才辈出的文化环境。在事业牵引拉力机制下,组织通过“基因优良、人才梯队、实践磨炼、激励有方”四大支点来孕育科学帅才辈出的土壤。研究最后得出的基于使命驱动与事业牵引的科学帅才辈出机制系统框架,既可以有效弥补现有文献对科学帅才辈出考量的不足,又能够为企业人才辈出提供一些管理启示。

关键词：使命驱动事业牵引科学帅才航天一院战略科学家

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水下光补偿设备对苦草生长生理影响研究

环境科学学报 2024年第3期44卷 450-458页

作者：花炜余成段高旗徐磊张坚彭剑峰苏州科技大学环境科学与工程学院苏州215009 苏州科技大学地理科学与测绘工程学院苏州215009 清华苏州环境创新研究院苏州215163 清华大学环境学院水质与水生态研究中心北京100084 昆山市水务水文调度中心苏州215300

沉水植物苦草(Vallisneria natans L.)作为水生态系统中的重要初级生产者,在治理富营养化水体方面发挥着至关重要的作用.然而,目前关于水下补光的研究主要集中在实验室内,采用LED灯进行实验.在面对水文条件复杂的户外自然环境和受污染... 详细信息

沉水植物苦草(Vallisneria natans L.)作为水生态系统中的重要初级生产者,在治理富营养化水体方面发挥着至关重要的作用.然而,目前关于水下补光的研究主要集中在实验室内,采用LED灯进行实验.在面对水文条件复杂的户外自然环境和受污染水体时,相关的光补偿实验研究相对较少.本文运用一种新型的水下自然光补偿设备,通过设置不同强度的水下光补偿条件:高补光(30.5%自然光)、低补光(15.7%自然光)和对照组(2.8%自然光),研究在户外自然河道条件下苦草幼苗的生长形态、光合作用及抗氧化和毒性胁迫指标.研究发现,与对照组相比,高、低补光组株高分别增加了120%和80%,叶片数分别增加了83.3%和33.3%,叶绿素a含量分别提高了49.4%和30%.实验结果表明,光补偿对苦草幼苗的抗氧化酶活性有显著影响,幼苗对氧化毒性胁迫的抗性平均提升23.9%~48.6%,但光照强度变化对苦草幼苗的可溶性蛋白含量影响并不明显.研究结果可为受污染水体中沉水植物种群恢复提供一定理论依据.

关键词：沉水植物水下光补偿生长形态叶绿素抗氧化毒性胁迫

中国南北过渡带油松径向生长对气候因子的响应研究——以鸡公山国家级自然保护区为例

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地理科学 2024年第9期44卷 1643-1652页

作者：韦晓旭彭剑峰彭猛李轩崔佳月李金宽魏亚飞河南大学地理与环境学院河南开封475004 河南省地球系统观测与模拟重点实验室河南开封475004 河南大学环境与规划国家级实验教学示范中心河南开封475004

本研究以河南省信阳市鸡公山自然保护区的油松林为研究对象,利用树木年轮学方法建立了油松径向生长宽度年表,其特征值表明,油松标准年表的质量较高,包含较多的气候信息,能反映气候变化对树木生长的影响。标准年表与鸡公山南北气象站(麻... 详细信息

本研究以河南省信阳市鸡公山自然保护区的油松林为研究对象,利用树木年轮学方法建立了油松径向生长宽度年表,其特征值表明,油松标准年表的质量较高,包含较多的气候信息,能反映气候变化对树木生长的影响。标准年表与鸡公山南北气象站(麻城和信阳站)的气象因子相关结果发现:油松生长与鸡公山南侧麻城气象站几乎与所有月份气温都呈负相关,与当年5—7月气温(6月的平均气温,5、6月平均最高气温和6、7月平均最低温度)呈显著负相关,而与几乎所有月份相对湿度都呈正相关,表明过渡带南侧高温带来的土壤水分胁迫对油松生长主要起着限制作用,南侧春末夏初4—6月相对湿度是油松生长的限制因子;鸡公山北侧信阳气象站生长季及生长季后期8—9月气温(8月平均气温、8、9月平均最低气温)对油松生长有明显的促进作用,上年7—8月相对湿度是油松生长的限制因子,北侧生长季后期9月降水对油松生长的促进作用具有滞后效应。滑动相关分析显示出,近几年油松生长对过渡带北侧信阳气象站8—9月平均气温的正响应趋势增强;在气候变暖的情景下,受到高温抑制(亚热带的麻城气温负相关),油松生长南界可能会向北移动。油松响应气候变暖的生长动态研究旨在为过渡带森林管理与更新提供基础数据支持。

关键词：鸡公山油松树轮宽度气候响应南北过渡带

An novel identification method of the environmental risk sources for surfacewater pollution accidents in chemical industrial parks

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Journal of Environmental Sciences 2013年第7期25卷 1441-1449页

作者： jianfeng peng Yonghui Song peng Yuan Shuhu Xiao Lu Han State Key Laboratory of Environmental Criteria and Risk Assessment Chinese Research Academy of Environmental Sciences Department of Urban Water Environmental Research Chinese Research Academy of Environmental Sciences

The chemical industry is a major source of various pollution accidents. Improving the management level of risk sources for pollution accidents has become an urgentdemand for most industrialized countries. In pollution accidents, the released chemicals harm the receptors to some extentdepending on their sensitivity or susceptibility. Therefore, identifying the potential risk sources from such a large number of chemical enterprises has become pressingly urgent. Based on the simulation of thewhole accident process, a novel and expandable identification method for risk sources causingwater pollution accidents is presented. The newlydeveloped approach, by analyzing and stimulating thewhole process of a pollution accident between sources and receptors, can be applied to identify risk sources, especially on the nationwide scale. Three major types of losses, such as social, economic and ecological losses,were normalized, analyzed and used for overall consequence modeling. A specific case study area, located in a chemical industry park （CIP） along the Yangtze River in Jiangsu Province, China,was selected to test the potential of the identification method. The results showed that therewere four risk sources for pollution accidents in this CIP. Aniline leakage in the HS Chemical Plantwould lead to the most serious impact on the surroundingwater environment. This potential accidentwould severelydamage the ecosystem up to3.8 kmdownstream of Yangtze River, and lead to pollution over adistance stretching to 73.7 kmdownstream. The proposed method is easily extended to the nationwide identification of potential risk sources.

关键词： water pollution accident risk source identification grading chemical industry parks

April–September minimum temperature reconstruction based on Sabina tibetica ring-width chronology in the central eastern Tibetan Plateau, China

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