西北林学院学报2024，Vol.39Issue(2)：51-59,209,10.DOI:10.3969/j.issn.1001-7461.2024.02.07
辽东山区红松人工林生态系统多功能性研究
Multifunctionality of Pinus koraiensis Plantation Ecosystem in Eastern Liaoning Mountainous Area
摘要
Abstract
Taking Pinus koraiensis plantations with different ages in the mountainous area of eastern Liaon-ing Province as the research objects,30 plots with different site conditions were set up to investigate and analyze the characteristics of P.koraiensis growth,understory shrub and soil nutrients and water,and se-lect the ecological functions of tree layer carbon storage,soil nutrient maintenance,soil water conservation,biodiversity maintenance,productivity and wood production.The average value method was used to quanti-fy the multifunctionality,and the synergy-trade-off relationship between different functions and the main factors driving multi-functionality were discussed.The results showed that the multifunctional index of P.koraiensis plantation was 0.38-0.78,which increased significantly with plantation age.The trade-off rela-tionship between different functions was dominant.Among them,the trade-off degree between tree layer carbon storage,productivity and wood production in the tree layer of 10-year-old P.koraiensis plantation was 0.And the trade-off between soil nutrient maintenance function and other functions was the highest in 10-,34-and 43-year-old P.koraiensis plantations.Under branch height,dominant tree height,slope,slope position,soil C∶N,C∶K and N∶K were the main environmental factors affecting the multifunctionality index of P.koraiensis plantation.In order to realize the forest multifunction of P.koraiensis plantation,the site conditions should be selected as small slope,shady slope and low slope position as far as possible dur-ing afforestation.In the process of forest management,high-intensity pruning should be avoided,understo-ry biodiversity conservation should be paid attention to,pruning residues and litter management should be strengthened,and forest land fertilization should be carried out when necessary,so as to promote the coor-dinated development of stand factors,topographic factors and soil nutrients,and promote the sustainable and healthy management of P.koraiensis plantation.关键词
红松人工林/森林多功能性/平均值法/协同-权衡Key words
Pinus koraiensis plantation/forest multifunction/mean value method/synergies-trade-offs分类
农业科技引用本文复制引用
杨圆圆,刘金义,战金伟,卜鹏图,肖尧,高慧淋,冯健..辽东山区红松人工林生态系统多功能性研究[J].西北林学院学报,2024,39(2):51-59,209,10.基金项目
国家重点研发计划"人工红松节子生物学特性及对木材质量的影响机制"(2022YFD2201800-02). （2022YFD2201800-02）
