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Comprehensive Benefit Evaluation Method of Mountain Flood Disaster Prevention and Control in Jiangxi Province Based on Matter-Element Extension Model
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作者 peixun liu Yanbin Shao +3 位作者 Jiawen Ye Pingping Shi Dingbo Yuan Zhengwen Xu 《Journal of Geoscience and Environment Protection》 2024年第10期347-354,共8页
Taking the mountain flood disaster prevention and control project in Jiangxi province as the research object, the evaluation period is 2010-2015, and 29 evaluation indexes are selected from 7 aspects. In this paper, g... Taking the mountain flood disaster prevention and control project in Jiangxi province as the research object, the evaluation period is 2010-2015, and 29 evaluation indexes are selected from 7 aspects. In this paper, game theory is introduced to optimize the subjective and objective weights of the index, and the comprehensive weights are obtained by normalization. The results show that the eigenvalues of the grade variables of benefit evaluation decreased from 3.43 to 2.03, indicating that the project of mountain flood disaster prevention and control in Jiangxi province brings into play the benefits year by year, and the eigenvalues tend to decrease steadily after 2012, it is consistent with the changes of various engineering measures and non-engineering measures in the project. 展开更多
关键词 Index System Numerical Model Comprehensive Evaluation
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Yield Characteristics of a New High-quality Disease-resistant Wheat Variety Chuanmai 618
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作者 Jianmin ZHENG Zongjun PU +4 位作者 Jijuan LU Jiangtao LUO Qingyan DENG peixun liu Shizhao LI 《Plant Diseases and Pests》 2024年第2期22-26,31,共6页
[Objectives]The paper was to analyze the yield characteristics of a new high-quality disease-resistant wheat variety Chuanmai 618.[Methods]The yield characteristics of Chuanmai 618 were analyzed using the AMMI model a... [Objectives]The paper was to analyze the yield characteristics of a new high-quality disease-resistant wheat variety Chuanmai 618.[Methods]The yield characteristics of Chuanmai 618 were analyzed using the AMMI model and GGE biplot based on data from a 2-year regional test and a 1-year production test.[Results]The analysis of the AMMI model for the 2-year regional test indicated that Chuanmai 618 had a moderate yield and good stability.During the production test,Chuanmai 618 had an average yield of 450.52 kg/666.7 m^(2),an effective spike of 235700 spike/666.7 m^(2),a 1000-seed weight of 47.93 g,and a kernel number per spike of 47.28.The AMMI analysis sequencing graph showed that the varieties were ranked in the following order:Zhongkemai 1816>Chuanmai 618>Shumai 1958>Chuanyu 42>Mianmai 367>Xikemai 5518.According to the GE analysis,Chuanmai 618 had comparative advantages.[Conclusions]The new wheat variety Chuanmai 618 is a high-quality disease-resistant variety with good yield and stability. 展开更多
关键词 Chuanmai 618 High quality Disease-resistant AMMI model High yield STABILITY
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Prospect and research progress of detecting dynamic change in crustal stress by bedrock temperature
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作者 Shunyun Chen Qiongying liu +1 位作者 peixun liu Yanqun Zhuo 《Geohazard Mechanics》 2023年第2期119-127,共9页
A new method of detecting stress change by temperature(DSCT),has been recently proposed on the basis of the experimental results in laboratory,and verified by field observation.In this paper,at first,physical backgrou... A new method of detecting stress change by temperature(DSCT),has been recently proposed on the basis of the experimental results in laboratory,and verified by field observation.In this paper,at first,physical background is concisely introduced,and experimental researches are followed.Then,the key techniques are reviewed,and the main results on in-situ observations are also given in detail.At last,we emphasize on the prospects of this method for being investigated further.The potential prospect includes six contents:(1)to observe the tidal force and its secondary fluid thermal effect;(2)to study temperature response to change in direction of the stress change;(3)to carry out practical engineering application;(4)to analyze the strong earthquake risk,based on bedrock temperature observation;(5)to conduct in situ experiment on DSCT;(6)to explain quantitatively the satellite thermal infrared anomaly.In short,considering that the dynamic change of the crustal stress is a key parameter of earthquake forecasting or engineering application,the method of DSCT has important practical significance for earthquake risk or engineering applications. 展开更多
关键词 Detecting stress change by temperature(DSCT) Crustal stress Bedrock temperature Co-seismic response In situ experiment
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四川杂交小麦研究进展及展望 被引量:6
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作者 罗江陶 刘仲齐 +9 位作者 任勇 陶军 肖子泉 饶世达 田宁 郑建敏 刘培勋 邓清燕 李生荣 蒲宗君 《科学通报》 EI CAS CSCD 北大核心 2022年第26期3185-3196,共12页
四川杂交小麦研究历经50余载,至今仍在继续.杂交小麦的研究主要利用三系法和两系法,三系法中的T型三系研究较为系统,从不育系的选育、恢复的改良以及组合配制方面均进行了长期研究,尤其针对T型三系恢复源窄,提出了主效恢复基因选择法,... 四川杂交小麦研究历经50余载,至今仍在继续.杂交小麦的研究主要利用三系法和两系法,三系法中的T型三系研究较为系统,从不育系的选育、恢复的改良以及组合配制方面均进行了长期研究,尤其针对T型三系恢复源窄,提出了主效恢复基因选择法,极大提高了恢复系的选择效率.在温光敏两系杂交小麦研究领域,对其发现、育性转化、改良、组合配制等方面进行了研究,应用成果也很显著,培育出通过国家审定的绵阳32和绵杂麦168、四川省审定的绵杂麦512和绵杂麦638;在化杀两系杂交小麦选育方面,对药剂类型、施药剂量、用药时期等进行研究,培育出2个通过四川省审定的化杀杂交小麦新品种川麦59和川麦69并释放生产应用.同时,针对四川小麦生产实际,对杂交小麦的发展提出了展望. 展开更多
关键词 杂交小麦 T型三系 温光敏 化杀剂 蓝矮败
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热测应力:测震学证据 被引量:7
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作者 陈顺云 刘培洵 +1 位作者 陈立春 刘琼颖 《科学通报》 EI CAS CSCD 北大核心 2020年第22期2395-2405,共11页
通过基岩温度观测可以获取地壳应力动态变化信息(称热测应力),但缺乏与其他观测手段的对比验证.本研究基于康定Ms6.3级地震同震温度响应,结合测震学结果,对同震应力变化的量级和空间分布特征等开展对比分析.结果显示:(1)热测应力与测震... 通过基岩温度观测可以获取地壳应力动态变化信息(称热测应力),但缺乏与其他观测手段的对比验证.本研究基于康定Ms6.3级地震同震温度响应,结合测震学结果,对同震应力变化的量级和空间分布特征等开展对比分析.结果显示:(1)热测应力与测震学两种方法获得的结果,应力变化的量级一致;从应力张压特性与温度变化上看,拉张降温,挤压升温,与理论和实验结果相吻合.(2)依据不同基岩温度测点获得的应力变化的张、压分区情况,康定地震的震源体深度更接近于测震学研究结果的上限范围.这意味着,基于基岩温度获取的地壳应力变化结果,可对震源分析提供一个新的约束条件.总之,随着基岩温度测量技术的提高,基岩温度观测有可能成为一种观测地壳应力动态变化的常规手段. 展开更多
关键词 热测应力 基岩温度 地壳应力 康定地震 同震响应
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