[Objective] This study investigated the health status of black locust plantation in Weibei area and established an evaluation system to provide scientific basis for the sustainable management of black locust plantation.[Method] To investigate the forest condition of black locust plantations in Weibei Loess Plateau,84 sample plots were surveyed in Huaiping forest farm in Yongshou Country,Yehe forest farm in Fufeng Country and Fangshan forest farm in Baishui Country.Stand structure (O),stand vitality (V) and stand resistance (R) were chosen to assess forest health with the consideration of science,representation and practicality.Ecosystem Health Index Model was employed to evaluate the health status of black locust plantations.Plantations were divided into three categories:unhealthy,sub-health and health.[Result] The established forest health assessment index system for black locust plantation included vigor indexes (site quality,dieback rate and renew status),structure indexes (canopy density,density,average DBH and average height) and stress indexes (fire danger rating,plant diseases and insect pests).Healthy plantations,sub-healthy plantations and unhealthy plantations accounted for 45.2％,42.9％ and 11.9％ among surveyed sample plots in Weibei Loess Plateau area,respectively.It indicated that the whole status of black locust plantations was sub-healthy and forest tending and management were needed.[Conclusion] The established index system and evaluation method could reflect the health status of black locust plantation in Weibei Loess Plateau.
black locust plantationforest assessmentWeibei Loess Plateau area
NETL
NSTL
维普
万方数据
