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Species’ geographical range, environmental range and traits lead to specimen collection preference of dominant plant species of grasslands in Northern China

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Plant Diversity 2024年第3期46卷 353-361页

作者： Jingya Zhang Cui Xiao Xiaoyu Duan Xin Gao Hao Zeng rong'an dong Gang Feng Keping Ma Ministry of Education Key Laboratory of Ecology and Resource Use of the Mongolian Plateau&Inner Mongolia Key Laboratory of Grassland Ecology School of Ecology and EnvironmentInner Mongolia UniversityHohhot 010021China State Key Laboratory of Vegetation and Environmental Change Institute of BotanyChinese Academy of SciencesBeijing 100093China

Many different factors,such as species traits,socio-economic factors,geographical and environmental factors,can lead to specimen collection preference.This study aims to determine whether grassland specimen collection in China is preferred by species traits(i.e.,plant height,flowering and fruiting period),environmental range(i.e.,the temperature and precipitation range)and geographical range(i.e.,distribution range and altitudinal range).Ordinary least squares models and phylogenetic generalized linear mixed models were used to analyze the relationships between specimen number and the explanatory variables.Random Forest models were then used to find the most parsimonious multivariate model.The results showed that interannual variation in specimen number between 1900 and 2020 was considerable.Specimen number of these species in southeast China was notably lower than that in northwest China.Environmental range and geographical range of species had significant positive correlations with specimen number.In addition,there were relatively weak but significant associations between specimen number and species trait(i.e.,plant height and flowering and fruiting period).Random Forest models indicated that distribution range was the most important variable,followed by flowering and fruiting period,and altitudinal range.These findings suggest that future floristic surveys should pay more attention to species with small geographical range,narrow environmental range,short plant height,and short flowering and fruiting period.The correction of specimen collection preference will also make the results of species distribution model,species evolution and other works based on specimen data more accurate.

关键词： Biological specimen Collection preference Dominant plant species Environmental range Geographical range Species traits

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Factors affecting post-release survival and dispersal of reintroduced Crested Ibis(Nipponia nippon)in Tongchuan City,China

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Avian Research 2022年第3期13卷 356-361页

作者： Min Li Yilamujiang Tuohetahong Feng Lin rong dong Huaqiang Wang Xiaoman Wu Xinping Ye Xiaoping Yu College of Life Sciences Shaanxi Normal UniversityXi’an710119China Shaanxi Giant Panda Research Center Xi’an710082China Yaozhou District Wildlife Protection and Management Station Tongchuan City727100China Research Center for UAV Remote Sensing Shaanxi Normal UniversityXi’an710119China Changqing Teaching&Research Base of Ecology Shaanxi Normal UniversityXi’an710119China

Reintroduction has become a common conservation management tool to restore endangered species in their historical range.However,many attempts have failed to establish self-sustaining populations in the wild.The success of reintroductions could be improved by varying release strategies.Therefore,it is vital to determine the factors influencing reintroduction outcomes.To better understand the post-release settlement and to optimize the release strategy of the Crested Ibis(Nipponia nippon),we quantified the effects of age,sex,acclimation duration,and the timing of release events on post-release survival and dispersal distance for the released Crested Ibis in Tongchuan City,Shaanxi Province,using a generalized linear mixed effect modeling approach.Our results indicate that 40–56.3%of the released individuals survived the first year following release.Mortality was attributable to flight collisions,starvation,disease,and unknown reasons.The post-release survival probability of ibises showed a negative association with age(estimate=-0.186;95%CI:-0.350 to-0.022;P=0.026),and post-release dispersal distance was affected by the timing of release event(estimate=0.718;95%CI:0.025 to1.253;P=0.042).However,sex and acclimation period duration did not cause detectable differences in postrelease survival probability and dispersal distance.Based on our results,optimal release strategies for establishing a reintroduced population of the Crested Ibis include:(1)release of sub-adults biased and sex ratio balanced initial groups;(2)release during the non-breeding season;and(3)food supplementation immediately after release.

关键词： Crested Ibis Post-release dispersal Release strategy Reintroduction Survival probability

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Intracranial infection and sepsis in infants caused by Salmonella derby:A case report

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世界临床病例杂志 2023年第28期11卷 6961-6966页

作者： Jing-Lu Yu Li-Li Jiang rong dong Si-Yu Liu Department of Clinical Laboratory The Fifth Affiliated Hospital of Wenzhou Medical UniversityLishui 323000Zhejiang ProvinceChina Department of Neonatology The Fifth Affiliated Hospital of Wenzhou Medical UniversityLishui 323000Zhejiang ProvinceChina

BACKGROUND Salmonella derby(S.derby)is a Gram-negative diplococcus that is common in the digestive tract.Infected patients generally experience symptoms such as fever and diarrhea.Mild cases are mostly self-healing gastroenteritis,and severe cases can cause fatal typhoid fever.Clinical cases are more common in children.The most common form of S.derby infection is self-healing gastroenteritis,in which,fever lasts for about 2 d and diarrhea for<7 d.S.derby can often cause bacterial conjunctivitis,pneumonia,endocarditis,peritonitis and urethritis.However,intracranial infections in infants caused by S.derby are rare in clinical practice and have not been reported before in China.CASE SUMMARY A 4-mo-old female infant had recurrent fever for 2 wk,with a maximum body temperature of around 39.4°C.Treatment for infectious fever in a local hospital was ineffective,and she was admitted to our hospital.Before admission,there was one sudden convulsion,characterized by unclear consciousness,limb twitching,gaze in both eyes,and slight cyanosis on the face.Cerebrospinal fluid(CSF)culture was positive for Gram-negative bacilli,which conformed to S.derby.After treatment with meropenem and ceftriaxone antibiotics,the patient was discharged home in a clinically stable state after 4 wk of treatment.CONCLUSION We reported a rare case of S.derby cultured in CSF.S.derby enters the CSF through the blood–brain barrier,causing purulent meningitis.If not treated timeously,it can lead to serious,life-threatening infection.

关键词： Salmonella derby Infants Cerebrospinal fluid Case report

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Uniform Lipschitz Estimates of Homogenization of Elliptic Systems in Divergence Form with Dini Conditions

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Acta Mathematicae Applicatae Sinica 2021年第1期37卷 48-68页

作者： rong dong dong-sheng LI Hai-liang ZHANG School of Mathematics and Statistics Xi'an Jiaotong UniversityXi'an 710049China Departments of Mathematics Zhejiang Ocean UniversityZhoushan 316022China

The paper is devoted to the homogenization of elliptic systems in divergence form.We obtain uniform interior as well as boundary Lipschitz estimates in a bounded C1,γdomain when the coefficients are Dini continuous,inhomogeneous terms are divergence of Dini continuous functions and the boundary functions have Dini continuous derivatives.The results extend Avellaneda and Lin’s work[Comm.Pure Appl.Math.,40:803-847(1987)],where Holder continuity is the main assumption on smoothness of the data.

关键词： homogenization elliptic systems uniform Lipschitz estimates Dini conditions

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语文项目化学习中驱动性问题的创设

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教学与管理 2024年第19期 31-34页

作者：李侠荣维东长江师范学院文学院重庆408100 西南大学教师教育学院重庆400715

在语文项目化学习实践中,驱动性问题的创设往往出现问题欠缺、意旨不明、驱动作用不强等问题,其原因主要是非问题驱动、学生参与度不足、缺乏提炼整合。针对上述症结,可以通过师生对驱动性问题的共同创设、准确呈现、修正修改、问题管... 详细信息

在语文项目化学习实践中,驱动性问题的创设往往出现问题欠缺、意旨不明、驱动作用不强等问题,其原因主要是非问题驱动、学生参与度不足、缺乏提炼整合。针对上述症结,可以通过师生对驱动性问题的共同创设、准确呈现、修正修改、问题管理等策略,增强学生参与度,设计出有意思、有意旨、有意义的驱动性问题。

关键词：驱动性问题项目化学习语文大概念

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Effects of breeding success,age and sex on breeding dispersal of a reintroduced population of the Crested Ibis(Nipponia nippon)in Ningshan County,China

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Avian Research 2018年第4期9卷 314-320页

作者： rong dong Xinping Ye Lin Zhong Xia Li Min Li Huaqiang Wang Xiaoping Yu College of Life Sciences Shaanxi Normal UniversityXi’an 710119China Research Center for UAV Remote Sensing Shaanxi Normal UniversityXi’an 710119China Shaanxi Nature Reserve and Wildlife Management Xi’an 710082China Reintroduction Center of Crested Ibis Ningshan CountyAn’kang 725000China Wildlife Administration of Yaozhou Forestry Bureau Tong Chuan 727110China

Background: Breeding dispersal is an important ecological process that affects species' population dynamics and colonization of new suitable areas. Knowledge of the causes and consequences of breeding dispersal is fundamental to our understanding of avian ecology and evolution. Although breeding success for a wild and reintroduced population of the Crested Ibis(Nipponia nippon) has been reported, the relationships between individuals' breeding dispersal and their breeding success, age and sex remain unclear.Methods: Ibises' breeding dispersal distance, which is the distance moved by adults between sites of reproduction, was estimated based on the observations of consecutive breeding sites of marked ibis individuals. From observational and capture-recapture data(n as = 102) over 9 years, individuals' breeding dispersal probability in relation to age, sex, and reproductive success wanalyzed via a generalized linear mixed effect modeling approach.Results: Our results show that 55% males and 51% females keep their previous territories following nesting success. Failed breeding attempts increased dispersal probabilities. Both females and males failed in breeding were more likely to disperse with greater distances than successful birds(females: 825 ± 216 m vs 196 ± 101 m, males: 372 Crested Ibis exhibited a female-biased dispersal pattern that the mean dispersal distance± 164 m vs 210 ± 127 m). of females(435 ± 234 m) was much larger than that of males(294 ± 172 m).Conclusion: Our results are fundamental to predict the patterns of breeding dispersal related to reproductive success under different release sites. From the conservation point of view, landscape connectivity between the reintroduced populations should be taken into account in accordance with the distance of breeding dispersal.

关键词： Breeding dispersal Breeding success Generalized linear mixed effect model Crested Ibis Reintroduced population

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密度泛函理论研究KA油在氧化钨表面上的吸附分离

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原子与分子物理学报 2024年第4期41卷 19-26页

作者：庞浩成容铠东何东李旭方岩雄广东工业大学轻工化工学院广州510006

环己烷氧化生成环己酮和环己醇(产物合称KA油)是重要的工业反应,其产物环己酮可作为化学工业中重要的中间体,广泛的用于生产尼龙-6.然而,环己醇和环己酮沸点接近难以分离,因此开发有效分离KA油的材料受到科学工作者的广泛关注.本文基于... 详细信息

环己烷氧化生成环己酮和环己醇(产物合称KA油)是重要的工业反应,其产物环己酮可作为化学工业中重要的中间体,广泛的用于生产尼龙-6.然而,环己醇和环己酮沸点接近难以分离,因此开发有效分离KA油的材料受到科学工作者的广泛关注.本文基于密度泛函理论计算,研究KA油在干净和有机物修饰的氧化钨材料上的吸附能和吸附构型;通过差分密度电荷和态密度计算,揭示了主-客体吸附过程中的电荷转移特性;研究结果发现使用硅烷修饰后的氧化钨材料对环己醇吸附性能更好;而使用硅醚修饰后对环己酮有更强的吸附能力.该理论研究工作为实验提供了理论依据,缩短了研发分离KA油新材料的时间,节省了人力和资源等成本.

关键词： KA油氧化钨密度泛函理论吸附

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调亏灌溉技术对葡萄果实品质的影响

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农业工程 2024年第4期14卷 114-120页

作者：杨嘉鹏董荣新疆工程学院新疆工程学院人工智能与智慧矿山工程技术中心新疆乌鲁木齐830023 新疆农业科学院农业机械化研究所新疆乌鲁木齐830091

由于全球变暖,水资源短缺的风险越来越大,优化传统栽培模式,实行节水灌溉势在必行。调亏灌溉是提高水分利用效率的关键技术。阐述了调亏灌溉机理,从葡萄树体生长状况、根系发育情况及相关蛋白表达调控等多个角度进行了综合分析;概述了... 详细信息

由于全球变暖,水资源短缺的风险越来越大,优化传统栽培模式,实行节水灌溉势在必行。调亏灌溉是提高水分利用效率的关键技术。阐述了调亏灌溉机理,从葡萄树体生长状况、根系发育情况及相关蛋白表达调控等多个角度进行了综合分析;概述了分期调亏灌溉、根系分区灌溉和隔行交替灌溉3种调亏灌溉模式,探讨了不同灌溉时期对葡萄生长发育的影响,以及不同物候期对水分的需求及如何根据葡萄的生长周期合理安排灌溉时间;总结了调亏灌溉对葡萄果实中糖分、酸度、酚类化合物及香气物质等关键品质因素的影响。通过对调亏灌溉机理的深入研究,以及对不同灌溉模式和时期影响的探讨,为科学管理葡萄园,实现节水增效,促进农业可持续发展奠定理论基础。

关键词：调亏灌溉葡萄调亏模式调亏时期节水灌溉

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温阳化浊方治疗慢性子宫内膜炎对反复种植失败患者妊娠结局的影响:一项随机对照研究

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中华生殖与避孕杂志 2024年第4期44卷 353-358页

作者：宫政宋佳怡董融申路路夏天天津中医药大学第一附属医院生殖医学科国家中医针灸临床医学研究中心天津300193 宁波大学附属第一医院生殖中心宁波315012 河北中医药大学中西医结合研究所石家庄050091

目的研究温阳化浊方联合抗生素治疗对反复种植失败(recurrent implantation failure,RIF)合并慢性子宫内膜炎(chronic endometritis,CE)患者妊娠结局的影响。方法采用随机对照研究,纳入2020年2月至2021年1月期间就诊于天津中医药大学第... 详细信息

目的研究温阳化浊方联合抗生素治疗对反复种植失败(recurrent implantation failure,RIF)合并慢性子宫内膜炎(chronic endometritis,CE)患者妊娠结局的影响。方法采用随机对照研究,纳入2020年2月至2021年1月期间就诊于天津中医药大学第一附属医院生殖医学科的脾肾阳虚型RIF合并CE患者60例,按照随机数字表法1∶1分为对照组和中药组,每组各30例。对照组予口服多西环素+甲硝唑治疗14 d,中药组在此基础上加用温阳化浊方口服治疗3个月经周期,两组在治疗结束后行冻融胚胎移植。比较两组妊娠结局、内膜转化日/排卵日子宫内膜厚度和形态、子宫内膜血流分支及血流相关指数,CE转阴率及治疗结束当周期黄体中期的子宫内膜组织CD138、血管内皮生长因子(vascular endothelial growth factor,VEGF)及同源框基因A10(homeobox A10,HOXA10)的表达。通过单因素logistic回归分析持续妊娠率的影响因素。结果中药组的持续妊娠率[46.67%(14/30)]和胚胎种植率[54.05%(20/37)]高于对照组[20.00%(6/30),P=0.028;31.71%(13/41),P=0.046],两组临床妊娠率、生化妊娠率和早期流产率差异均无统计学意义(均P>0.05)。治疗后,中药组A型子宫内膜比例[66.67%(18/27)]高于对照组[33.33%(10/30),P=0.017],血流动力指数(2.29±0.76)及收缩期峰值速度/舒张末期流速(5.52±1.24)均低于对照组(2.86±0.92,P=0.015;6.44±1.43,P=0.012)。两组治疗后CE转阴率差异无统计学意义(P>0.05)。与对照组[(33.37±11.46)ng/L,2.06±0.89]相比,中药组黄体中期子宫内膜VEGF[(64.52±10.14)ng/L,P<0.001]与HOXA10(3.67±1.27,P<0.001)表达增加。单因素logistic回归分析结果显示子宫内膜血流是影响RIF合并CE持续妊娠的独立因素(OR=2.956,95%CI:1.072~8.148,P=0.036)。结论温阳化浊方能够增加脾肾阳虚型RIF合并CE患者的子宫内膜血供,提高子宫内膜容受性,改善妊娠结局。

关键词：妊娠结局反复种植失败慢性子宫内膜炎温阳化浊方子宫内膜容受性

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南疆沙区不同林龄四翅滨藜人工林植物多样性与土壤理化性质

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西北林学院学报 2024年第2期39卷 189-195页

作者：赵亚冲彭佳乐沈留记邓岚董荣荣周正立塔里木大学生命科学与技术学院新疆阿拉尔843300 塔里木大学园艺与林学学院新疆阿拉尔843300 塔里木盆地生物资源保护利用兵团重点实验室新疆阿拉尔843300

为明确南疆沙区四翅滨藜人工林植物多样性与土壤理化性质的关系,为该区植被建设与恢复提供科学依据。以南疆沙区沙漠前沿种植的四翅滨藜为对象,研究不同林龄(1、2、4龄)四翅滨藜灌木林的植物多样性、土壤理化性质变化,分析各多样性指数... 详细信息

为明确南疆沙区四翅滨藜人工林植物多样性与土壤理化性质的关系,为该区植被建设与恢复提供科学依据。以南疆沙区沙漠前沿种植的四翅滨藜为对象,研究不同林龄(1、2、4龄)四翅滨藜灌木林的植物多样性、土壤理化性质变化,分析各多样性指数与土壤理化性质的相关关系,并采用主成分分析方法对林分状况进行评价。结果表明,1)四翅滨藜人工林共出现植物6科13种,且各林龄的Margalef指数、Simpson指数、Shannon-Wiener指数和Pielou指数表现为2年生地>4年生地>1年生地>裸地。2)种植四翅滨藜能够提高土壤SMC、TN、TP、AN和AP含量,降低土壤Sa、pH、TK及AK含量。并且随林龄的增加,土壤SMC、TP和AP含量“先升后降”;TK含量“先降后升”;SOM、TN、AN和AK含量“逐渐上升”;土壤Sa含量、pH“逐渐下降”。3)土壤SMC、TP、TN含量与群落Shannon-Wiener指数、Simpson指数和Margalef指数呈显著或极显著正相关,但与pielou指数无显著性相关关系。灌木层与草本层中,多样性指数主要受土壤TP、TK含量影响。4)主成分分析表明多样性指数、SMC、TP、TK和SOM对林分贡献率较大,各林龄综合得分依次为4年生>2年生>1年生>裸地。种植四翅滨藜能够提高植物多样性指数,改善土壤理化性质。

关键词：南疆沙区四翅滨藜植物多样性土壤理化性质

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