Research progress analysis of Spartina alterniflora based on patentometrics
The invasive species Spartina alterniflora has caused severe damage to the ecosystems of coastal beaches,but it also contains salt tolerance genes,biomass energy,and other potentially valuable organic wealth.To provide technical support for the prevention,control,and management of S.alterniflora,this study analyzes do-mestic and international S.alternifllora patents.Associated S.alterniflora patents primarily include monitoring,controlling,and resource utilization technology.Domestic S.alterniflora patent applications exhibited an increasing trend from 1995 to 2022,with a total of 360 patent applications.The proportion of S.alterniflora monitoring,con-trolling,and resource utilization technology patents was 4%,22%,and 74%,respectively.Monitoring technology predominantly uses remote sensing approaches to monitor S.alterniflora.Controlling technology patents for S.al-terniflora include physical,chemical,biological alternatives,and integrated control technologies.Integrated control technologies had the highest number of patent applications and authorizations.Although many patent applications were submitted for S.alterniflora resource utilization technology,the actual proportion of granted patents is rela-tively low.This phenomenon indicates that the potential value of S.alterniflora as a resource is being increasingly recognized and developed,but its utilization value remains low.Limited attention has been paid to S.alterniflora abroad,with only seven patents found that were predominantly for resource utilization technology,including the United States and South Korea,with patent authorization rates of 25.0%and 33.3%,respectively.The study rec-ommends that future strategies for the control and management of S.alterniflora should focus on research and de-velopment of utilization technologies,promote the commercialization of technological achievements,deepen the improvement of primary technologies to align with national policies and key research and development project goals,enhance its application value and market prospects and transform S.alterniflora from a"harmful"grass to a"beneficial"grass.