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To assess the climate risks of spring frost on the Loess Plateau, the daily minimum temperature observation data during spring frost period (April 1-May 31) from 1981 to 2020 for 13 meteorological stations on the Loess Plateau grapevine area were collected, and the station ratio, frequency, number of days, intensity and risk were studied by mathematical statistics and spatial analysis methods. The results showed that during the spring frost period of grapevine on the Loess Plateau from 1981 to 2020, the average daily minimum temperature showed a highly significant upward trend with 0.42℃·10y-1 of climate tendency, the lowest daily minimum temperature showed a highly significant downward trend with -0.75℃·10y-1 of climate tendency. The negative climate tendency rates of lowest daily minimum temperature were distributed sporadically and the higher absolute value was in Zuoquan with -0.76℃·10y-1. The station ratio of slight spring frost on the Loess Plateau decreased, while the moderate, severe and comprehensive spring frost increased. The frequency and number of days of slight and moderate spring frost decreased, while the severe spring frost showed increased, and the intensity of severe spring frost showed a significant upward trend; the comprehensive frequency and number of days of spring frost decreased, while the intensity showed a significant upward trend. The frequency, number of days, and intensity of spring frosts increased from southwest to northeast for all spring frost levels. The climatic risk of grapevines on the Loess Plateau decreased in the risk of slight and moderate spring frosts, and increased in the risk of severe and comprehensive spring frosts. The high-risk areas were mainly distributed in Zuoquan, Taigu and other places in the north, and the low-risk areas were mainly distributed in Huyi and Weinan in the south. The results could provide a scientific basis for the prevention and mitigation of grapevine spring frost on the Loess Plateau. [ABSTRACT FROM AUTHOR]

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Copyright of Modern Preventive Medicine is the property of Modern Preventive Medicine Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Progress in Modern Biomedicine is the property of Publishing House of Progress in Modern Biomedicine and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Xinjiang Agricultural Sciences is the property of Xinjiang Agricultural Sciences Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of New Medicine is the property of Sun Yat Sen University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Agricultural Outlook (1673-3908) is the property of Institute of Agricultural Information, Chinese Academy of Agricultural Sciences and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Apple is the pillar industry of agricultural characteristic economy in Shaanxi province, but it is facing severe weather disasters during the production process, and the agricultural insurance has not effectively dispersed and transferred these risk. The data of apple planting area, production and yield per unit area of 30 base counties in Shaanxi province from 1981 to 2019 were collected, and the mathematical statistical analysis, yield loss distribution models and optimal distribution model screening were used to evaluate and determine the apple planting risk and its insurance premium rate. The results showed that the apple planting area, production and yield per unit area were increased from 1981 to 2019 in Shaanxi province. Luochuan, Liquan and Chunhua had the highest planting area and production, and the average planting area were 2.12×104ha, 2.01×104ha, and 1.94×104ha, the average production were 33.19×104t, 51.26×104t and 34.28×104t respectively from 1981 to 2019. Liquan and Fufeng were characterized by the relatively higher average yield per hectare with 19.71t and 16.89t respectively from 1981 to 2019. The probability of disaster risk was 29.72%, and the mild, medium, severe and extreme disasters were 17.41%, 7.21%, 2.99% and 2.11% respectively for apple planting in Shaanxi province. Yanchuan and Qianyang were prone to extreme disasters with probability of 24.18% and 20.79%. The probability of severe and extreme disasters was negatively correlated to the planting area with the correlation coefficients of -0.50. The average premium rate of apple planting was 5.23% in Shaanxi province, Yanchuan had the highest premium rate of 18.37%, followed by Qianyang (16.61%). Liquan, Luochuan, and Chunhua, the bigger apple-planting counties, had relatively low premium rates of 7.12%, 7.35%, and 8.63% respectively. Therefore, the high risk areas such as Yanchuan and Qianyang should be cautious in "northward expansion", Luochuan, Liquan and Chunhua could be maintained the planting advantages, and the low risk areas such as Fengxiang could be considered in planting expansion. Increasing apple planting in area with low natural disaster risk could effectively spread the risk in space. The differentiated premium rate according to local conditions should be implemented to ensure the scientificity of premium rate and improve the efficiency of agricultural insurance. [ABSTRACT FROM AUTHOR]

Copyright of Chinese Journal of Agrometeorology is the property of Editorial Board of Chinese Journal of Agrometeorology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Kunming Medical University / Kunming Yike Daxue Xuebao is the property of Kunming Medical Journal and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Kunming Medical University / Kunming Yike Daxue Xuebao is the property of Kunming Medical Journal and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Objective: To observe the clinical effect of bronchoalveolar lavage combined with local drug injection for bronchiectasis with infection. Methods: 114 cases of bronchiectasis patients with infection were randomly divided into control group(conventional treatment) and experimental group(on the basis of conventional therapy, given bronchoalveolar lavage combined with local injection therapy). Compared improvement of symptoms,blood gas index, treatment time, within half a year again visits between two groups of patients after treatment. Results: Compared with before treatment, the blood gas indexes were improved obviously in two patients after treatment, the differences were statistically significant(P<0.05); The blood gas index of experimental group compared with the control group improved more significantly, the difference was statistically significant(P<0.05); The cooling time,cough disappeared time, moist rales disappearance time, hospitalization time, within half a year again visits of experimental group were shorter than these of the control group, the differences were statistically significant(P<0.05); The total effective rate of experimental group was 100%, higher than 89.5%of the contrast group, the difference was statistically significant(P<0.05). Conclusion: Bronchoalveolar lavage combined with local drug injection for bronchiectasis with infection can effective improve symptoms, significantly improve the therapeutic effect, reduce the recurrence rate, it’sworthy of clinical application. [ABSTRACT FROM AUTHOR]