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Correlation between psychological traits and the use of smart medical services in young and middle-aged adults: An observational study
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作者 Hu Zhang Yan Liu Rui Gu 《World Journal of Psychiatry》 SCIE 2024年第8期1224-1232,共9页
BACKGROUND Psychological problems affect economic development.However,there is a huge gap between mental health service resources and mental health service needs.Existing mental health service technology and platforms... BACKGROUND Psychological problems affect economic development.However,there is a huge gap between mental health service resources and mental health service needs.Existing mental health service technology and platforms cannot meet all the diverse mental health needs of people.Smart medicine is a new medical system based online that can effectively improve the quality and efficiency of medical services and make mental health services accessible.AIM To explore the level of intelligent medical use among young and middle-aged people and its correlation with psychological factors.METHODS Convenience sampling was used to select 200 young and middle-aged patients with medical experience at the Third People's Hospital of Chengdu between January 2022 and January 2023 as the research subjects.The general condition Questionnaire,Eysenck Personality Questionnaire,Symptom Checklist-90,General Health Questionnaire,and Smart Medical Service Use Intention Questionnaire were used to collect data.Pearson’s correlation was used to analyze the correlation between the participants’willingness to use smart medical services and their personality characteristics,psychological symptoms,and mental health.RESULTS The results revealed that the mental health of young and middle-aged people was poor,and some had psycho-logical problems such as anxiety,depression,and physical discomfort.Familiarity,acceptance,and usage of smart healthcare in this population are at a medium level,and these levels correlate with psychological characteristics.Acceptance was positively correlated with E,and negatively correlated with P,anxiety,fear,anxiety/insomnia,and social dysfunction.The degree of use was negatively correlated with P,obsessive-compulsive symptoms,depression,anxiety,hostility,paranoia,and somatic symptoms.CONCLUSION The familiarity,acceptance,and usage of smart medical services among the middle-aged and young groups are related to various psychological characteristics. 展开更多
关键词 young and middle-aged people Smart healthcare Willingness to serve Psychological characteristics Questionnaire survey RELEVANCE
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Study on the association of multimorbidity with sleep and diet in young and middle-aged adults in Chongqing region,China
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作者 Mei Zhao Hai-Hang Qin +3 位作者 Rong Sun Jing Zhang Xue-Qin Yan Wei-Wei Liu 《Medical Data Mining》 2024年第4期50-55,共6页
Background:The prevalence of multimorbidity is increasing,with a notable shift towards younger age groups.Methods:Convenience sampling was employed to select 15,988 young and middle-aged adults in Chongqing as the stu... Background:The prevalence of multimorbidity is increasing,with a notable shift towards younger age groups.Methods:Convenience sampling was employed to select 15,988 young and middle-aged adults in Chongqing as the study population.The Apriori algorithm was used to identify the multimorbidity patterns within this population,while an unordered binary logistic regression model was applied to assess the association between sleep,diet and the risk of multimorbidity.Results:The study population had an average age of 39.2±10.1 years.Apriori association rules revealed that the most prevalent binary chronic disease multimorbidity pattern was dyslipidaemia+hypertension(14.78%),while the most common ternary chronic disease multimorbidity pattern was diabetes+dyslipidaemia+hypertension(9.66%).The logistic regression analysis revealed that a lower rating of sleep quality was associated with an elevated risk of multimorbidity(odds ratio(OR)=1.17,95%confidence interval(CI):1.01,1.36).Individuals who adhere to a meat-based diet(OR=1.45,95%CI:1.25,1.68)and those with elevated salt intake(OR=1.22,95%CI:1.01,1.47)were also observed to have an increased risk of multimorbidity.Additionally,a greater likelihood of multimorbidity was observed among those following a spicy diet(OR=1.3,95%CI:1.11,1.52)and consuming more oil(OR=1.16,95%CI:1.01,1.33).Conclusion:A poor sleep quality and a dietary preference for meat-based,salt,spicy and oils were found to be associated with an increased risk of multimorbidity progression among young and middle-aged populations.It is recommended that young and middle-aged adults should pay attention not only to sleep duration but also to sleep quality and improve dietary habits to reduce the likelihood of multimorbidity. 展开更多
关键词 young and middle-aged adults SLEEP DIET MULTIMORBIDITY
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The Relationship between Mental Health Literacy and Subjective Well-Being of Young and Middle-Aged Residents: Perceived the Mediating Role of Social Support and Its Urban-Rural Differences 被引量:2
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作者 Zhen Zhang Suyan Chen +4 位作者 Xiaoxuan Wang Jun Liu Yilin Zhang Yongxia Mei Zhenxiang Zhang 《International Journal of Mental Health Promotion》 2023年第4期471-483,共13页
This study investigates mental health literacy among young and middle-aged urban and rural residents and the differences in mental health literacy,perceived social support and subjective well-being.From January to Feb... This study investigates mental health literacy among young and middle-aged urban and rural residents and the differences in mental health literacy,perceived social support and subjective well-being.From January to February 2022,620 participants(320 rural and 300 urban residents)from three provinces of China were selected by con-venience sampling.A general data questionnaire,mental health literacy scale,perceived social support scale and subjective well-being scale were administered.The mental health literacy scores of urban residents were 3.34±0.57 and those of rural residents were 2.73±0.79.The results of multiple regression analysis showed that the mental health literacy scores of rural residents were more significant than those of urban residents in terms of sex and age,while urban residents’mental health literacy scores were more significant than those of rural resi-dents in terms of monthly income.Mental health literacy,perceived social support and subjective well-being of young and middle-aged urban and rural residents were all positively correlated(P<0.01).While the level of mental health literacy is better among urban residents than rural residents,perceived social support plays a partial mediating role between mental health literacy and subjective well-being of both urban and rural residents,and should be the focus of researchers seeking to improve the level of well-being of residents. 展开更多
关键词 young and middle-aged people mental health literacy perceived social support subjective well-being mediating role
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Effect of Age and Sex on Stroke Mortality of Young and Middle-aged Adults in China,2002–2019,and Predictions to 2030
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作者 ZHAI Yi SI Xiang +1 位作者 WANG Wen Zhi ZHAO Wen Hua 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 2023年第4期305-312,共8页
Objective This study aimed to examine the trends in stroke mortality among young and middle-aged adults in China.Methods Data were obtained from the China national vital registration system.Significant changes in mort... Objective This study aimed to examine the trends in stroke mortality among young and middle-aged adults in China.Methods Data were obtained from the China national vital registration system.Significant changes in mortality were assessed by Joinpoint regression.Age-period-cohort analysis was used to explain the reasons for the changes.Future mortality and counts were predicted by the Bayesian age-period-cohort model.Results Between 2002 and 2019,a total of 6,253,951 stroke mortality in young and middle-aged adults were recorded.The age-adjusted mortality rates(AAMRs)of women showed a downward trend.The annual percent changes(APC)were-3.5%(-5.2%,-1.7%)for urban women and-2.8%(-3.7%,-1.9%)for rural women.By contrast,the AAMRs per 100,000 for rural men aged 25–44 years continued to rise from 9.40 to 15.46.The AAMRS for urban men aged 25–44 years and urban and rural men aged 45–64years did not change significantly.Between 2020 and 2030,the projected stroke deaths are 1,423,584 in men and 401,712 in women.Conclusion Significant sex and age disparities in the trends of stroke mortality among young and middle-aged adults were identified in China.Targeted health policy measures are needed to address the burden of stroke in the young generation,especially for rural men,with a focus on the prevention and management of high risk factors. 展开更多
关键词 STROKE MORTALITY young and middle-aged Joinpoint regression Age-period-cohort analysis
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Influencing factors of fatigue in young and middle-aged patients with coronary heart disease:a cross-sectional study
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作者 Lu Yu Yao-Yao Hu +3 位作者 Jing Zhang Fang-Ying Mao Qing Wu Lin Liu 《Life Research》 2023年第2期20-29,共10页
Objective:To examine the present state of fatigue in young and middle-aged patients with coronary heart disease(CHD)and to identify the elements that may be affecting it.Methods:From December 2020 to June 2021,240 you... Objective:To examine the present state of fatigue in young and middle-aged patients with coronary heart disease(CHD)and to identify the elements that may be affecting it.Methods:From December 2020 to June 2021,240 young and middle-aged patients with CHD who were being treated in the cardiology department of a tertiary care hospital in Suzhou were chosen using a convenience sampling method in order to gather data on the patients’sociodemographic status,fatigue,social support,and stress.Results:Of the 240 disseminated questionnaires,220 valid responses were returned,resulting in an effective recovery rate of 91.67%.The frequency of exhaustion was 51.8%,and the fatigue score was(5.27±2.77).The stress score was(11.15±3.36),while the overall social support score was(39.13±4.72).Binary logistic regression analysis indicated that age,exercise,staying up late,stress,social support,high-sensitivity troponin T,high-density lipoprotein,and ejection fraction were independent risk factors for fatigue in young and middle-aged patients with CHD(P<0.05).Conclusions:Fatigue is more prevalent in young and middle-aged patients with CHD.Clinical nurses can create a unique management plan for patients based on their lifestyle and behavioral patterns,stress levels,social support,and clinical signs to reduce fatigue. 展开更多
关键词 young and middle-aged adults coronary heart disease FATIGUE influencing factors symptom experience model
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Association of fatigue with short-term prognosis in young and middle-aged patients with coronary heart disease
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作者 Fang-Ying Mao Lu Yu +1 位作者 Qing Wu Jing Zhang 《Psychosomatic Medicine Research》 2023年第2期1-8,共8页
Background:To investigate the effect of fatigue on the short-term prognosis of young and middle-aged patients with coronary heart disease(CHD).Methods:A cross-sectional,observational survey was distributed at a tertia... Background:To investigate the effect of fatigue on the short-term prognosis of young and middle-aged patients with coronary heart disease(CHD).Methods:A cross-sectional,observational survey was distributed at a tertiary hospital in Suzhou,China.Patients were assessed for fatigue and their prognosis was assessed at 3 and 6 months after discharge.General Information Questionnaire,Fatigue Scale and Seattle Angina Questionnaire(SAQ)were used for the survey.The Cox proportional hazard model was used to analyze the impact of fatigue on the occurrence of major adverse cardiac events(MACEs)at 3 and 6 months after discharge.Multiple linear regression models were used to analyze the effect of fatigue on health-related quality of life(HRQoL)at 3 and 6 months after discharge.Results:199 patients were followed up with in the end.43 patients(21.6%)with MACE three months after discharge had a total SAQ score of(399.76±39.61).The overall SAQ score was(425.14±22.66)and 52 patients(26.1%)experienced MACE six months after discharge.Fatigue was identified as a risk factor for MACE 6 months after discharge by the Cox proportional hazard model(HR=2.939,95%CI:0.177~0.655,P=0.001)and as an independent risk factor for quality of life 3 and 6 months after discharge by multiple linear regression(P<0.001).Conclusions:In individuals who are young or middle-aged and have coronary heart disease,fatigue is a risk factor for the short-term prognosis.It is advised that clinical professionals prioritize patient fatigue assessment and improve management of fatigue symptoms. 展开更多
关键词 coronary heart disease FATIGUE major adverse cardiovascular events quality of life young and middle-aged
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Effects of Fertilization on Growth and Soil of Middle-aged Slash Pine Forest
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作者 肖兴翠 谢荣秀 +2 位作者 李志辉 康伟静 吴际友 《Agricultural Science & Technology》 CAS 2015年第11期2386-2393,共8页
In order to promote the growth of mid-aged Pinus elliottii plantation, the effects of different fertilizing amounts of formula fertilizer were studied on the growth, the soil and cost-benefit of 9 year-old Pinus el/io... In order to promote the growth of mid-aged Pinus elliottii plantation, the effects of different fertilizing amounts of formula fertilizer were studied on the growth, the soil and cost-benefit of 9 year-old Pinus el/iottii plantations in the north- ern part of Hunan, China. Three years after fertilization, the results showed that the increments of DBH, height, individual volume and stock volume of stand, and the fertilizer benefit of the different fertilization treatments were higher than the control to varying degrees, and among them, 700 g/tree was the best for promoting the growth of Pinus elliottii. Two years fertilization, the soil nutrients were improved compared with before, pH values of different layers decreased, organic matter and rapid available K contents increased, and rapid available N content increased dra- matically with the upper layer having an increase higher than the lower one; rapid available P decreased at different levels with the upper layer having a decrease lower than the lower one; and proper application of fertilizer could promote the growth of Pisolithus tinctofius, and 7 months after fertilization, the number of Pisolithus fruiting body generally increased with the increase of the fertilizer within 100-800 g/tree. The yield and benefit per unit area could be increased by fertiliza- tion for 1 time in middle-aged Pinus elliottii plantations, and the best fertilizing amount was N-P-K fertilizer 700 g/tree. 展开更多
关键词 FERTILIZATION Pinus elliottif middle-aged forest GROWTH SOIL
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Factors associated with financial support in old age for young and middle-aged rural residents in China
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作者 Suyan Shen Fang Li John Kipkorir Tanui 《Chinese Journal of Population,Resources and Environment》 2015年第2期169-176,共8页
This study examined the factors associated with financial support in old age from three primary mechanisms-personal savings,family support,and social insurance-to explore the implications for the future development of... This study examined the factors associated with financial support in old age from three primary mechanisms-personal savings,family support,and social insurance-to explore the implications for the future development of China's rural social welfare system.Cross-sectional surveys of 1392 young and middle-aged rural residents were conducted in July and August2012.The results showed that while social insurance was increasingly acceptable,personal savings and family support still had fundamental value.Combining the three mechanisms,the rural old-age welfare system presented nontraditional features.China's new rural endowment insurance is discussed as a means to address the need for financial support among the rural aging population. 展开更多
关键词 OLD-AGE financial SUPPORT young and middle-aged rural RESIDENTS personal SAVINGS family SUPPORT social INSURANCE
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Psychosocial Adaptation Level and Work Participation Rate of Young and Middle-aged Patients with Coronary Heart Disease after PCI
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作者 Hongyun ZHENG Yan ZHAN Li ZHANG 《Medicinal Plant》 CAS 2022年第3期68-70,74,共4页
[Objectives]The research aimed to understand the psychosocial adjustment to illness of young and middle-aged patients with coronary heart disease after PCI and their participation situation in work.[Methods]210 young ... [Objectives]The research aimed to understand the psychosocial adjustment to illness of young and middle-aged patients with coronary heart disease after PCI and their participation situation in work.[Methods]210 young and middle-aged patients aged 18-59 years with coronary heart disease treated by PCI in a tertiary hospital of Suzhou from July of 2020 to November of 2022 were selected,and general information of patients in three days after operation was registered.Self-report psychosocial adjustment to illness scale(PAIS-SR)was used to investigate the psychosocial adjustment to illness of patients in 1,3 and 6 months after operation and the participation rate of work.[Results]The psychosocial adjustment to illness of young and middle-aged patients with coronary heart disease after PCI was different in gender,age,education level,marital status,hypertension,diabetes,postoperative cardiac color Doppler ultrasound results(left ventricular ejection fraction)and the number of stents(P<0.05).[Conclusions]The psychosocial adjustment to illness of young and middle-aged patients with coronary heart disease after PCI needs to be improved.The psychosocial adjustment to illness of men is higher than that of women.The older the age is,the lower the psychosocial adjustment to illness is.The psychosocial adjustment to illness of patients with high educational background is higher than those with low educational background,while the psychosocial adjustment to illness of married people is higher than unmarried people.The psychosocial adjustment to illness of patients with hypertension and/or diabetes is lower. 展开更多
关键词 young and middle-aged Coronary heart disease PCI PSYCHOLOGY
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Correlation of blood uric acid level with the degree of anxiety as well as the neurotransmitter and cytokine secretion in young and middle-aged patients with anxiety disorder
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作者 Xiao-Bei Liu Xiao-Jun Hou 《Journal of Hainan Medical University》 2019年第2期62-65,共4页
Objective:To study the correlation of blood uric acid level with the degree of anxiety as well as the neurotransmitter and cytokine secretion in young and middle-aged patients with anxiety disorder.Methods: The young ... Objective:To study the correlation of blood uric acid level with the degree of anxiety as well as the neurotransmitter and cytokine secretion in young and middle-aged patients with anxiety disorder.Methods: The young and middle-aged patients diagnosed with generalized anxiety disorder in our hospital between March 2015 and February 2018 were selected as the anxiety group, and the healthy subjects receiving physical examination during the same period were selected as the control group. Peripheral blood was collected to determine the contents of uric acid, neurotransmitters and cytokines, and Hamilton Anxiety Scale (HAMA) was adopted to judge the degree of anxiety.Results: The blood uric acid level of anxiety group was obviously higher than that of control group and the higher the HAMA scores, the more significant the rising of blood uric acid levels;serum 5-hydroxytryptamine (5-HT), norepinephrine (NE), dopamine (DA), interleukin-1α (IL-1α), IL-17 and interferon-γ (IFN-γ) contents of anxiety group were significantly higher than those of control group whereas neuropeptide Y (NPY), IL-4 and transforming growth factor-β (TGF-β) contents were significantly lower than those of control group;blood uric acid level of the anxiety group was positively correlated with 5-HT, NE, DA, IL-1 , IL-17 and IFN-γ contents, and negatively correlated with NPY, IL-4 and TGF-β contents.Conclusion: The rise of blood uric acid level in young and middle-aged patients with anxiety disorder is related to the aggravation of anxiety degree as well as the abnormal secretion of neurotransmitters and cytokines. 展开更多
关键词 ANXIETY disorder in the young and middle-aged BLOOD uric acid NEUROTRANSMITTER CYTOKINE
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Experience of Treating Hypertension from Liver and Spleen Among Middle-Aged and Young Patients:A Summary
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作者 Caiying Li 《Journal of Clinical and Nursing Research》 2022年第2期25-29,共5页
Qi deficiency of the spleen and stomach,transportation,phlegm and dampness generate endogenous and turbid phlegm that violates the position of yang clearance.As a result,dizziness cis resulted.The author believes that... Qi deficiency of the spleen and stomach,transportation,phlegm and dampness generate endogenous and turbid phlegm that violates the position of yang clearance.As a result,dizziness cis resulted.The author believes that the incidence of middle-aged and young patients with hypertension is mostly related to the dysfunction of liver and spleen.Liver depression and qi stagnation is the beginning of the onset;spleen deficiency and dyskinesia is the norm of the onset;and liver and spleen imbalance is the origin of the onset.It is advocated that regulating the liver and spleen to restore the rise and fall,harmonizing qi and blood and preventing lesions are the main treatment methods for the treatment of middle-aged and young people’s hypertension,which is conducive to the development of more clinical diagnosis and treatment ideas for hypertension amomg middle-aged and young people. 展开更多
关键词 HYPERTENSION young and middle-aged Liver and spleen Clinical experience
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Assessing stand structure in successional stages of dark coniferous forests in western Sichuan, China 被引量:1
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作者 Jiangming Ma Shirong Liu +1 位作者 Zuomin Shi Jingxin Wang 《Journal of Forestry Research》 SCIE CAS CSCD 2016年第4期779-786,共8页
Subalpine dark coniferous forests in the western Sichuan Province of China play an important role in the hydrological processes in the upper reaches of the Yangtze River. Second-growth forests, with different stand su... Subalpine dark coniferous forests in the western Sichuan Province of China play an important role in the hydrological processes in the upper reaches of the Yangtze River. Second-growth forests, with different stand successional stages, have developed as a result of logging over the past 50 years. Forest cover and stand structure changed greatly with concomitant degradation of forest ecosystem functions. To understand how the stand structures of the second-growth forests change during the stand succession process, we analyzed stand structure characteristics and an old-growth state index of the bamboo and moss-forest types. We found that stand structure at the young successional stage featured one-third of the structure characteristics of the old-growth dark coniferous forests,while the structure of the medium-aged stage had reached half the structure of the old-growth state. The two forest types were similar in the rate of development at the young successional stage but differed at the medium-aged stage;the moss-forest type had more advanced development than the bamboo-forest type at the medium-aged successional stage. 展开更多
关键词 stand forests bamboo leaved ecosystem logging young Yangtze succession shrub
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施肥对毛红椿幼林生长及叶片生理特征的影响 被引量:2
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作者 潘俊彬 刘远生 +5 位作者 张露 程强强 王健 贾婷 吴云燕 郭春兰 《广西植物》 CAS CSCD 北大核心 2024年第1期147-156,共10页
为了探究珍贵树种毛红椿对施用不同肥料不同用量的响应,该文以毛红椿幼林为研究对象,设置氮肥(N)、磷肥(P)、复合肥(CF)及缓释肥(SRF)4种肥料3个施肥水平(高、中、低),研究施肥对毛红椿幼林生长和叶片养分、生理的影响。结果表明:(1)施... 为了探究珍贵树种毛红椿对施用不同肥料不同用量的响应,该文以毛红椿幼林为研究对象,设置氮肥(N)、磷肥(P)、复合肥(CF)及缓释肥(SRF)4种肥料3个施肥水平(高、中、低),研究施肥对毛红椿幼林生长和叶片养分、生理的影响。结果表明:(1)施肥均可促进毛红椿树高和胸径生长,氮肥和复合肥效果更明显,氮肥处理的4年生毛红椿平均树高、平均胸径、平均材积较不施肥(CK)分别提高了15.0%、21.9%、67.5%,其中低氮肥(N1)处理的胸径年均生长量最大(2.99 cm),复合肥处理的平均树高、平均胸径、平均材积较CK分别提高了16.7%、19.2%、54.3%。高缓释肥(SRF3)和低磷肥(P1)分别在第4年树高、胸径的年增长量达到最大(分别为1.96 m、2.33 cm)。(2)施肥显著增加了毛红椿叶片叶绿素含量和非结构性碳水化合物含量,氮肥显著促进可溶性糖合成而磷肥显著促进淀粉合成。(3)N1和磷肥分别显著促进毛红椿叶片氮和磷含量的提高,磷肥、复合肥和氮肥均可显著提高叶片钾含量。(4)主成分分析结果表明,施肥促进生长效果依次为氮肥>复合肥>磷肥>缓释肥>不施肥,其中N1即100 g·plant-1·year-1的综合评价值最高。综合施肥成本和效益,施氮肥或复合肥能有效促进毛红椿幼林生长发育,推荐幼林期每年每株施100 g氮肥即可。该研究结果可为毛红椿造林初期林木养分管理提供参考。 展开更多
关键词 毛红椿 幼林 施肥 生长 生理
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6个橡胶树优树无性系阶段性综合评价
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作者 杨湉 吴裕 +3 位作者 赵祺 毛常丽 张凤良 李小琴 《西部林业科学》 CAS 北大核心 2024年第4期65-71,共7页
为探明6个橡胶树优树无性系的生长和产胶能力,测定7 a生时的生长量、胶乳产量、胶乳生理及胶乳性能,通过方差分析、相关性分析、主成分分析及隶属函数法对不同橡胶树优树无性系进行综合评价。结果显示:(1)平均茎围大小排序为:‘云研314... 为探明6个橡胶树优树无性系的生长和产胶能力,测定7 a生时的生长量、胶乳产量、胶乳生理及胶乳性能,通过方差分析、相关性分析、主成分分析及隶属函数法对不同橡胶树优树无性系进行综合评价。结果显示:(1)平均茎围大小排序为:‘云研314’>‘云研272’>‘云研617’>‘云研77-4’(对照)>‘云研585’>‘云研190’。(2)平均每株年总胶乳产量、平均每段胶乳产量、平均每株每刀胶乳产量排序均为:‘云研314’>‘云研272’>‘云研617’>‘云研77-4’(对照)>‘云研585’>‘云研190’。(3)硫醇、蔗糖含量与胶乳产量达到极显著正相关(P<0.01);无机磷含量与胶乳产量呈正相关但是相关性较小;总固形物含量与胶乳产量呈显著负相关(P<0.05)。(4)通过主成分分析和隶属函数的综合评价可以得出,‘云研272’和‘云研314’生长和产胶综合性状优于‘云研77-4’(对照),‘云研617’与‘云研77-4’(对照)相当,‘云研585’和‘云研190’次于‘云研77-4’(对照)。(5)6个橡胶树优树无性系的P 0、PRI都达到了GB/T8081-2018规定的质量要求。 展开更多
关键词 橡胶树 优树无性系 幼林 综合评价
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不同间种模式下薄壳山核桃幼林生长及经济效益分析
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作者 杨淞 王耀辉 +3 位作者 李葵 李珂 罗梅 钟伶俐 《现代农业科技》 2024年第14期108-111,共4页
本研究通过设置薄壳山核桃幼林纯林经营(CK)以及间种花生、大豆、玉米、玉竹,开展为期2年的间种试验,分析不同间种模式对薄壳山核桃幼林保存率、生长指标和经济效益的影响。结果表明:间种花生、大豆、玉米、玉竹4种间种模式下薄壳山核... 本研究通过设置薄壳山核桃幼林纯林经营(CK)以及间种花生、大豆、玉米、玉竹,开展为期2年的间种试验,分析不同间种模式对薄壳山核桃幼林保存率、生长指标和经济效益的影响。结果表明:间种花生、大豆、玉米、玉竹4种间种模式下薄壳山核桃幼林保存率均低于CK,但合理的间种模式可以降低这种负面影响;间种花生、大豆、玉竹3种间种模式下薄壳山核桃生长指标均高于CK,间种玉米模式下薄壳山核桃生长指标低于CK,表明间种作物的选择对薄壳山核桃幼林的生长有一定影响;不同间种模式下薄壳山核桃幼林年均经济收益差别明显,经济投入和对作物种植管理的技术要求差别也较大,林农要根据自身经济状况和技术条件选择合适的间种模式。 展开更多
关键词 薄壳山核桃 幼林 间种 保存率 生长指标 经济效益
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天然中幼龄林抚育意义与优化措施 被引量:1
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作者 汪洁 《广东蚕业》 2024年第2期53-55,共3页
在森林资源中,中幼龄林作为重要后备资源,对森林资源的可持续发展有着至关重要的影响。对天然中幼龄林进行抚育可以改善林区内的环境,提升森林质量,促进林分生长,进而形成健康稳定的森林生态环境。文章阐述了天然中幼龄林抚育现状,分析... 在森林资源中,中幼龄林作为重要后备资源,对森林资源的可持续发展有着至关重要的影响。对天然中幼龄林进行抚育可以改善林区内的环境,提升森林质量,促进林分生长,进而形成健康稳定的森林生态环境。文章阐述了天然中幼龄林抚育现状,分析了其在森林抚育中的重要意义,提出了中幼龄林抚育水平的优化措施,以期为森林资源保护提供参考。 展开更多
关键词 天然林 中幼龄林 抚育措施 森林抚育
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Media Watch
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《ChinAfrica》 2024年第2期7-7,共1页
Over the past few years,more and more young Chinese have been re-discovering their passion for zoos.According to data collected by the Hongshan Forest Zoo in Nanjing,Jiangsu Province in east China,while seniors aged 6... Over the past few years,more and more young Chinese have been re-discovering their passion for zoos.According to data collected by the Hongshan Forest Zoo in Nanjing,Jiangsu Province in east China,while seniors aged 60 and above accounted for 70 percent of its visitors in 2019,young adults in their 20s made up 60.21 percent in 2023. 展开更多
关键词 forest young VISITORS
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森林抚育存在的问题及改进措施——以千阳县为例
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作者 杨军 杨振华 《林业科技情报》 2024年第4期119-121,共3页
森林抚育是提高森林林分质量,促进林木个体同林分群体健康生长的有效途径,可以有效地修补“生态窟窿”,提升林地生产力、承载力和支持力,培育稳定健康森林生态系统,为县域经济社会发展提供数量更多的生态产品和质量更优的生态服务。结... 森林抚育是提高森林林分质量,促进林木个体同林分群体健康生长的有效途径,可以有效地修补“生态窟窿”,提升林地生产力、承载力和支持力,培育稳定健康森林生态系统,为县域经济社会发展提供数量更多的生态产品和质量更优的生态服务。结合多年来千阳县森林抚育实践,总结了森林抚育在剩余物处置、作业设计不精细、技术工人缺乏和政策限制等方面存在问题,提出了科学编制作业设计、加强技术培训力度、强化日常监管和加强剩余物综合利用等合理建议。 展开更多
关键词 森林抚育 中幼林 存在问题 改进措施 千阳县
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施肥时期对毛竹林出笋成竹及新竹生长的影响
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作者 熊日荣 《世界竹藤通讯》 2024年第2期26-29,共4页
为探究施肥时期对毛竹林出笋成竹及新竹生长的影响,2019—2022年在福建省永安市进行了不同施肥时期试验,设置3种施肥时期处理:5月份施肥1次+挖冬笋前1个月施肥1次(处理A),5月份施肥1次+边挖冬笋边施肥1次(处理B),5月份施肥1次+挖冬笋后... 为探究施肥时期对毛竹林出笋成竹及新竹生长的影响,2019—2022年在福建省永安市进行了不同施肥时期试验,设置3种施肥时期处理:5月份施肥1次+挖冬笋前1个月施肥1次(处理A),5月份施肥1次+边挖冬笋边施肥1次(处理B),5月份施肥1次+挖冬笋后1个月施肥1次(处理C),以不施肥作为对照(CK),分析比较不同施肥时期对毛竹林春笋出笋量、成竹量及新竹生长量的影响。结果表明,以处理B对毛竹林出笋成竹及新竹生长的促进作用最好,平均春笋出笋量达939个/hm^(2),平均成竹量达883株/hm^(2),新竹平均胸径达10.9 cm,平均竹高达12.3 m,分别较对照提高28.10%、32.38%、14.74%、14.95%。研究结果可为笋竹两用毛竹林施肥时期选择提供技术参考。 展开更多
关键词 毛竹林 施肥时期 笋竹两用林 出笋成竹 新竹生长 福建永安
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不同来源尾巨桉苗木造林生长的比较研究
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作者 许峻模 温远光 +6 位作者 黄勇杰 陈金磊 陈秋海 温俊 吴衍霖 林建 周晓果 《广西科学院学报》 2024年第2期154-161,共8页
为明确不同来源良种尾巨桉(Eucalyptus urophylla×E.grandis)无性系DH32-29苗木造林后幼龄阶段(1-3 a)的生长差异,为优质苗木的选择和提质增产增效提供理论依据,本研究以来源清楚的尾巨桉无性系DH32-29苗木(BG)和来源不清的尾巨桉... 为明确不同来源良种尾巨桉(Eucalyptus urophylla×E.grandis)无性系DH32-29苗木造林后幼龄阶段(1-3 a)的生长差异,为优质苗木的选择和提质增产增效提供理论依据,本研究以来源清楚的尾巨桉无性系DH32-29苗木(BG)和来源不清的尾巨桉无性系DH32-29苗木(NBG)造林林分为研究对象,比较研究广西西北部、中部及南部3个区域不同苗木造林林分的胸径、树高、生物量、碳储量及生产力的差异性。结果表明:林龄为2、3 a时,尾巨桉BG林分的平均胸径、单株生物量、单株碳储量及单株生产力均显著高于NBG林分(P<0.05);BG林分乔木层生物量、碳储量及生产力整体高于NBG林分,在林龄为1 a时差异较小,林龄为2 a生时差异增大,但未达显著水平(P>0.05),林龄为3 a生时差异达极显著水平(P<0.01)。因此,采用来源清楚的优质苗木造林增产效果更明显。 展开更多
关键词 尾巨桉 幼龄林 优质种苗 胸径 生产力
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