摘要
通过整合陕西省外来植物数据,分析了陕西省外来植物组成、来源和分布等,并分析了入侵植物种数与GDP等潜在影响因素之间的相关关系。结果表明,陕西省共有广义外来植物415种,隶属于68科268属,其中外来入侵植物132种,外来非入侵植物283种;外来植物占据的生境类型以农田和荒地为主(占所有生境类型的70%);从原产地来看,境外外来植物主要来源于欧亚大陆与美洲大陆,分别占全部外来植物的29.23%与28.83%;全省外来植物整体呈现南多北少的趋势;第三产业占比与外来入侵植物种数呈显著正相关(R^(2)=0.42,P=0.04);单位面积人均GDP与外来入侵植物占比呈显著正相关(R^(2)=0.60,P=0.01);单位面积人均GDP与单位面积外来入侵植物种数呈显著正相关(R^(2)=0.41,P=0.04)。结果预示,外来入侵植物的传播与社会生产活动之间存在着密切联系。陕西省当前遭受的外来植物引入和外来植物入侵压力较大,及时构筑针对外来入侵物种的有害生物防控体系显得尤为重要。
By integrating the data of alien plant species in Shaanxi Province,we analyzed thespecies composition,origination,and geographical distribution of alien plant species and the cor-relations between the number of invasive plant species and potential influencing factors(e.g.,GDP).The results showed that there were 415 generalized alien plant species in Shaanxi Pro-vince,belonging to 68 families and 268 genera,including 132 invasive species and 283 non-invasive species.The habitat types with the highest occupation by alien plants were cropland andwasteland(accounting for 70%habitats).Alien species mainly came from Eurasia and America,with species originated from these two continents accounting for 29.23%and 28.83%of all thealien species in Shaanxi Province,respectively.The spatial distribution of alien species in theprovince was uneven,with more alien species in the south and less in the north.There were sig-nificantly positive correlations between the percentage of tertiary sector in GDP and the number ofinvasive plant species(R^(2)=0.42,P=0.04),between GDP per capita per unit area and the pro-portion of invasive plants in all alien plants(R^(2)=0.60,P=0.01),and between the GDP percapita per unit area and the number of invasive alien plants per unit area(R^(2)=0.41,P=0.04).These results indicate that anthropogenic activities facilitate the introduction and invasion proces-ses of alien plants.Our results suggest that the risk of introduction and invasion of alien plants inShaanxi Province is unexpectedly high,and that it is critically needed to construct a biologicalprevention and control system for the invasion of alien plants.
作者
宋兴江
张文刚
陈晓艳
刘芮伶
姚鑫
马婧昊
王佳宁
史岩
冉俊杰
安玉霞
刘刚
SONG Xing-jiang;ZHANG Wen-gang;CHEN Xiao-yan;LIU Rui-ling;YAO Xin;MA Jinghao;WANG Jia-ning;SHI Yan;RAN Jun-jie;AN Yu-xia;LIU Gang(College of Life Sciences,Shaanxi Normal University,Xi'an 710119,China)
出处
《生态学杂志》
CAS
CSCD
北大核心
2021年第12期3800-3809,共10页
Chinese Journal of Ecology
基金
陕西省自然科学基础研究计划项目(2020JM-286)
中央高校基本科研业务费专项资金(GK202103072,2019CSLY019,2020CSLY014)资助。
关键词
外来植物
入侵植物
分布格局
人类活动
陕西省
alien plant
invasive plant
distribution pattern
human activity
Shaanxi Province
