密度对华山松林分生态及经济效益的影响研究  

Effects of Stand Density on Ecological and Economic Benefits of Pinus armandii Plantation

作　　者：简睐明 陶万金 潘红丽[2] JIAN Laiming;TAO Wanjin;PAN Hongli(Forestry Bureau of Huili Country,Huili 615100,China;Sichuan Academy of Forestry,Sichuan Key Laboratory of Ecological Restoration and Conservation for Forest and Wetland,Chengdu 610081,China)

机构地区：[1]会理县林业和草原局,四川会理615100 [2]四川省林业科学研究院,森林和湿地生态恢复与保育四川重点实验室,四川成都610081

出　　处：《四川林业科技》2020年第5期72-75,共4页Journal of Sichuan Forestry Science and Technology

摘　　要：为有效解决华山松人工林“重造轻管”的问题,通过对会理县太平镇尖山村5组实施高密度华山松低产低效林改造,并针对改造6年后的林木生长、林分结实变化、生物多样性影响、水土保持等方面进行了调查研究。结果表明,采用抚育强度50%的指标,即抚育后林分密度和蓄积均降低到抚育前的50%,对高密度华山松低产低效林进行间伐抚育,不仅能有效促进华山松林分的生长质量,短期内可提高华山松籽产量至少在3.5倍以上,且有利于促进林地生物多样性增加,提升土壤水土保持能力。Tending and transforation of man-made forest is an important forest practice to accurately improve forest quality.In order to evaluate the effects of tending and transformation on the low yield and low efficiency forest of highdensity Pinus armandii,the high-density Pinus armandii with low-yield and low-efficiency plantation in Group 5,jian shan village,Taiping Town,Huili County was transformed.The growth of trees,the change of stand fruit setting,the impact of biodiversity,water and soil conservation were investigated after six years of low-efficiency stand transformation.The results showed that the thinning and tending of the low-yield and low-efficiency Pinus armandii plantation could not only promote the growth quality of Pinus armandii stands,but also increased the seed yield of Pinus armandii by at least 3.5 times in a short period of time,and promoted the forest biodiversity and soil and water conservation capacity.

关 键 词：华山松 低产低效林 抚育改造 生物多样性 水土保持 

分 类 号：F326.27[经济管理—产业经济] S791.241[农业科学—林木遗传育种]