Study On The Plantation Health Assessment And Health Management Technology In Weichang County Of Hebei Province

As a brand-new forest resources management and operation idea, the forest health can provide the theoretical basis and guidelines for scientific evaluation of forest health status and forest health management.This research combining field investigation and internal data analysis to obtain a scientific forest health assessment in North Valley forest farm of Mulan forestry adminstration bureau.With the assessment,we Discussing The principal influencing factors of forest development and put forward the scientific and purposive management measures.This paper gets the following results:(1)With the evaluation model of comprehensive health assessment of forest ecosystem,we have evaluated 11pieces of sample lands.The evaluating consult shows that the health index of 2 health sample lands(only 18.2%) are 0.74 and 0.72.The comprehensive health index of sub-healthy state is in the range of 0.52～0.69,it have 9 sample lands(1.8%).There are not excellent and unhealthy sample lands.(2)The results also showed that when they were in different stand density,and different site,the health index in the mixed forest stand of broadleaf and conifer was higher than that in the pure conifer forest stand,and the larch forest stand was higher than that the Chinese pine forest stand.(3)This paper discussed the essential influencing factors of forest healthy are single stand structure and irrational density.The paper provided the main technical measures for health management,and scheduled a thinning table for plantation.The technical measures of litter and soil management,forestry disease control,forestry fire management are proposed.(4)This study established 5 demonstration of Chinese pine forest with different thinning,and provided the basis for the future management of Chinese pine forest stand.