中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Spatiotemporal transmission for Sudden Oak Death in Yunnan

文献类型:期刊论文

作者Fang, Zhou1; Cao, Chunxiang1; Ji, Wei1
刊名Kexue Tongbao/Chinese Science Bulletin
出版日期2016
卷号61期号:8页码:901-911
通讯作者Cao, Chunxiang (caocx@radi.ac.cn)
英文摘要Sudden Oak Death (SOD) refers to the destructive forest and ornamental plant disease which is arisen from the Phytophthora ramorum, and this pathogen can bring the critical damage to the specific plants in the short time, with the involvement of the stem ulcer and die back, and it only takes several weeks from invasion to symptoms. The Phytophthora ramorum was firstly tested on Azalea and Viburnum dilatatum in Germany and Dutch in 1993, and presented to Lithocarpus densiflorus and Quercus in California coastal areas in 1996. On the basis of the condition of host which has been infected with the pathogen, its host is distributed widely, can endanger the broad-leaved tree and needle-leaved tree, and can also endanger the shrub; and furthermore, it can also endanger the mature forest when the seedlings are endangered. The Phytophthora ramorum is bisexualism, and now, two mating types have been found and four evolutionary lineages are provided: NA1, NA2, EU1 and EU2, wherein NA1 and NA2 lineages are located in the western North America, namely, coastal areas in California and Oregon; EU1 lineage was firstly founded in Europe and mainly affected Azalea, Viburnum dilatatum and other shrubs, and then, it was introduced to North America subsequently, but no large-scale outbreak was occurred, because this lineage is mainly found in seedling nursery. EU2 lineage was firstly found in Northern Ireland, and broken out in the west of Scotland and most areas of Europe; and it mainly affects Larix kaempferi. Canada, New Zealand, European Union, Korea, China, America and many other countries and regions have paid high attention to SOD, and taken the measures in succession to strictly prevent the pathogen from incoming and diffusing. Phytophthora ramorum is included in the alien invasive species needing to be checked or investigated in accordance with the requirement of China's State Forestry Administration on Warning notification on forestry pests that requires the relevant forestry departments around the mainland to carry out the special investigation on it. Phytophthora ramorum is not yet found in mainland China, but the study has shown that the pathogen may originate from Himalayas region, and the pathogen was found in the ancient forest in Nepal and Taiwan. The main host plants of Phytophthora ramorum are widely distributed in China, for example, the Oak, Maple, Azalea and other vegetation. The climatic condition in China is also appropriate to occurrence and epidemic of the pathogen, and the pathogen was quarantined in the import and export trade. Therefore, the risk that the pathogen is introduced in China with the wood from affected area, wooden packaging or carrying of people entering in China is very high. Due to the surface rich of the main host plants of Phytophthora ramorum and adjacent to Himalayas region, Yunnan Province was selected as typical study area here for EU and NA evolutionary lineage. A temporal and spatial dynamic model simulating disease spreading within every week in 2013 was deduced based on the transmission mechanism abroad and environmental factors, including remote sensing data, meteorological data, vegetation distribution map derived from spatial information technique and Cellular Automation. The process of spore germination, survival and propagation in the host, is very sensitive to climate change, mainly affected by temperature and precipitation, so suitable temperature index and precipitation suitability index were introduced. Meanwhile, the pathogen spreads only in specific host, and the infected host is unable to heal itself. Based on the SI model architecture with Cellular Automation, cellular infection probability can be obtained by the temperature suitability index, precipitation suitability index, NDVI value and spore contact rate, according to the set cellular state transition rules, then, the spatio-temporal transmission process of the NA and EU lineage distribution are simulated in the study area. The research result shows that the spore contact rate and dispersion area of NA lineage is higher than EU lineage's, and the simulation result is certainly consistent with seasonal fluctuation in the outbreaks in America. Control measurements must be performed before April if SOD happened in China. © 2016, Science Press. All right reserved.
收录类别EI
语种中文
WOS记录号WOS:20161702304891
源URL[http://ir.radi.ac.cn/handle/183411/39573]  
专题遥感与数字地球研究所_SCI/EI期刊论文_期刊论文
作者单位1. Institute of Remote Sensing and Digital Earth Chinese Academy of Sciences, Beijing, China
2. Space Star Technology Co., Ltd., Beijing, China
推荐引用方式
GB/T 7714
Fang, Zhou,Cao, Chunxiang,Ji, Wei. Spatiotemporal transmission for Sudden Oak Death in Yunnan[J]. Kexue Tongbao/Chinese Science Bulletin,2016,61(8):901-911.
APA Fang, Zhou,Cao, Chunxiang,&Ji, Wei.(2016).Spatiotemporal transmission for Sudden Oak Death in Yunnan.Kexue Tongbao/Chinese Science Bulletin,61(8),901-911.
MLA Fang, Zhou,et al."Spatiotemporal transmission for Sudden Oak Death in Yunnan".Kexue Tongbao/Chinese Science Bulletin 61.8(2016):901-911.

入库方式: OAI收割

来源:遥感与数字地球研究所

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