지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2011.12
- 수록면
- 1 - 7 (7page)
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초록· 키워드
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Since the 1990s, many alien weeds (ex. Abutilon theophrasti, Cyperus esculentus, Sicyos angulatus, and Solanum carolinense) that have been unintentionally introduced into Japan have caused serious problems in forage crop fields. The most recent report on the topic pertains to invasion by some alien annual Ipomoea species into soybean fields. The most problematic characteristic of Ipomoea is its rapidly growing long vine that occasionally causes catastrophic damage to soybean plants. A questionnaire-based investigation performed in 2008 showed that 1,613 ha of soybean fields (3.3% of the soybean fields investigated), especially 26% of the soybean fields in Tokai region, were infested by some alien annual Ipomoea species. To determine the cause of the introduction on a large scale, contaminants of imported grains were investigated in 1993-1994, and on average, 20 weed species were found to be present in each shipment of imported grains. Most of these grains were imported from the Unites States and contained not only the already problematic alien weeds such as A. theophrasti, Amaranthus spinosus, and Solghum halpense, but also “native” species such as Setaria faberi, Rumex japonicas, and Echinochloa spp. To over come the present situation, our group is now planning to develop the early warning system for alien weeds in arable land. In this system, alien weed species will be ranked in the order of priority according to 3 stages of invasion: pre-entry, recently established, and epidemic. Priority will be given to each species, depending on the seriousness of the problem in North America and alack of control methods. In conclusion, the introduction of alien weeds via imported grains is a problem not only in Japan but also in Korea, China, and all of the East Asian countries. Any information gathered in our country would be useful for other countries. Collaboration and cooperation among countries is probably the only solution to this problem.
목차
ABSTRACT
Trends in invasive alien weeds in Japan
Background of the alien weed problem
Key points for solutions
Early warning system
Conclusions
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UCI(KEPA) : I410-ECN-0101-2014-520-002450353