報告時間：2017年5月22日（周一）上午9:30-10:30
報告地點💃：必一体育平台二樓會議室
報告題目:Mathematical models for citrus Huanglongbingand chemical and biological control（柑橘黃龍病及其化學生物控製的數學模型）
Abstract: Huanglongbing (HLB) is one of the most common widespread vector-borne transmission diseases through psyllid, which is called a kind of cancer of plant disease. In recent years, biologists are focused on the role of cross protection strategy to control the spread of HLB. In this talk, according to transmission mechanism of HLB, a deterministic model with cross protection is introduced. A threshold value $R_0$ is established to measure whether or not the disease is uniformly persistent. The existence of a backward bifurcation presents a further sub-threshold condition beyond $R_0$ for the spread of the disease. We also discuss the effects of cross protection and removing infected trees in spreading the disease. Numerical simulations suggest that cross protection is a promotion control measure, and replanting trees is bad for HLB control.
報告人簡介：高淑京，贛南師範大學教授🧚🏼，博士🧝ℹ️，中國疾病預防控製中心🤯、新疆大學兩站博士後🤛🏽，江西省數值模擬與仿真技術重點實驗室主任🧘🏿♀️、全國優秀教師、江西省主要學科學術與技術帶頭人、江西省青年科學家（“井岡之星”）培養計劃人選、江西省百千萬人才工程人選、美國數學學會特邀評論員、國家自然科學基金委同行評議專家🫴🏻🌒、全國生物數學學會、江西數學會理事。
一直從事生物數學方面的研究👩🏼🚀，主要在動植物傳染病動力學😼🤏、種群動力學等方面，做了些探索性的研究工作🎸。近幾年發表論文70多篇，其中被SCI收錄48篇，引用次數600多次，目前單篇最高他引用次數達260多次😎。主持國家自然科學基金項目3項、作為主要參與者參加2項國家科技支撐計劃重大項目，另外還主持中國博士後基金項目等省級項目13項。獲得江西省自然科學三等獎和江西省高校科技成果一、二等獎👨🏼🏭。