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中国第三届植物化感作用学术研讨会;第八届全国杂草科学大会;联合国粮农组织——中国“水稻化感作用论坛”

作者： Yoshiharu FUJII Leader Invasive Alien Species Research ProjectNational Institute for Agro-Environmental Sciences3-1-3 Kan-nondaiTsukubaIbaraki 305-8604Japan

Recently,the movement of people and substances is becoming more active as human activity and living organisms are being introduced into new regions in a manner that exceeds the living organisms’natura

关键词： invasive alien plants allelopathy natural toxin mitigation biodiversity

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Investigation and Hazard Assessment of invasive alien plants on the Campus of Tongren University

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Plant Diseases and Pests 2023年第4期14卷 33-37页

作者： Tinghong TAN Yingying HE Zide YANG Siyu XIA Li LUO Hong YANG Lan WANG School of Agriculture and Forestry Engineering and Planning Tongren UniversityTongren 554300China Guizhou Provincial Key Laboratory for Biodiversity Conservation and Utilization in the Fanjing Mountain Region Tongren UniversityTongren 554300China Guiyang Nursing Vocational College Guiyang 550081China

[Objectives]The paper was to investigate and assess the species,distribution and hazard status of invasive alien plants on the campus of Tongren University.[Methods]A survey was conducted using line survey method,and the risk assessment index system of invasive alien plants was established by analytic hierarchy process(AHP).[Results]There were 11 species of invasive alien plants on the campus of Tongren University,belonging to 8 genera and 5 *** were 6 species of invasive alien plants belonging to Asteraceae,accounting for 54.55%of the *** terms of the origin of invasive plants,most of them were native to North America and Europe,accounting for 27.27%of the *** terms of harmful level,there were no high-risk invasive plants on the campus of Tongren University,but Alternanthera philoxeroides had the highest score and was the most harmful.[Conclusions]The present situation of alien plant invasion on the campus of Tongren University is closely related to the ecological environment of the *** is suggested to strengthen the management of campus plants,focus on the prevention and control of ***,and carry out regular investigation of invasive alien plants on campus to ensure the ecological safety of the campus.

关键词： Tongren University invasive alien plants Plant investigation Analytic hierarchy process Hazard assessment

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Impacts of road on plant invasions in the Middle Mountain region of central Nepal

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Journal of Mountain Science 2024年第2期21卷 619-632页

作者： Ananda ADHIKARI Adarsha SUBEDI Achyut TIWARI Bharat Babu SHRESTHA Central Department of Botany Tribhuvan UniversityKirtipur 44618Nepal

Biological invasion is triggered by human development activities such as the construction and expansion of road *** verges serve as important habitats and corridors for the distribution of invasive alien plant species(IAPS)between geographically distant ***,the trajectory of plant invasion and the data regarding the impact of roads on IAPS distribution are relatively poor in ***,we surveyed two road types(main roads and feeder road)in the Middle Mountain region of central Nepal in order to investigate how different road types are driving the dispersal of IAPS along road verges and the adjacent natural *** sampling was conducted at ca 2.5 km intervals along the *** each sampling site,paired plots(25 m×4 m)were sampled:one adjacent to and along the road,and another 20 m away and parallel to it in the interior *** results revealed that the main road verges had a higher cover(33%)and a larger number of IAPS(14 species)than the feeder road(25%;10 species).The IAPS cover and richness were significantly higher along verges than in the adjacent interior habitats for both road types,indicating that roads are contributing as corridors for the dispersal of IAPS in the Middle Mountain areas of central ***,elevation,tree canopy,and disturbances(grazing/mowing/trampling)were found to be the key factors that determine spatial distribution of IAPS along road *** emphasize that regular monitoring of vegetation along the road verges can help with the early detection and control of potential IAPS in the region before they become problematic.

关键词： Biological invasions Dispersal corridor invasive alien plants Transport infrastructure Himalayan mountains

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Drought may be beneficial to the competitive advantage of Amaranthus spinosus

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Journal of Plant Ecology 2022年第3期15卷 494-508页

作者： Youli Yu Huiyuan Cheng Shu Wang Mei Wei Congyan Wang Daolin Du Department of Environmental Science School of the Environment and Safety EngineeringJiangsu UniversityZhenjiang 212013China Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment School of Environmental Science and EngineeringSuzhou University of Science and TechnologySuzhou 215009China State Key Laboratory of Tree Genetics and Breeding School of ForestryNortheast Forestry UniversityHarbin 150040China

Drought can affect the growth and soil enzyme activities of invasive alien plants(IAPs).It is imperative to evaluate the competitive advantage of IAPs compared with that of the native species and the activities of soil enzymes under *** study aimed to evaluate the competitive advantage of the IAP Amaranthus spinosus that originated from tropical America compared with the native Chinese species *** and the activities of soil enzymes under drought.A competitive co-culture of *** and *** was established using a planting basin *** two species were treated with different levels of drought,i.e.(i)the control;(ii)a light level of drought and(iii)a heavy level of *** functional traits,osmotic adjustment and the activities of antioxidant enzymes of the two species,as well as soil pH and electrical conductivity,contents of soil microbial biomass carbon and the activities of soil enzymes were *** relative competition intensity and relative dominance of *** were greater than those of *** under *** may provide an advantage to the competitive advantage of *** water-soluble salt content and sucrose hydrolytic power of *** were greater than those of *** under *** ability of *** to grow in soil with higher levels of water-soluble salt contents and sucrose hydrolytic power under drought may aid in its acquisition and utilization of nutrients.

关键词： biomass stability invasive alien plants relative competition intensity relative dominance stress intensity

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