福建南平百年树龄杉木人工林生态系统服务功能评估OA

Long-term managed plantations undergo profound changes in their ecosystem service functions as they succeed towards near-natural forests.The Cunninghamia lanceolata(Lamb.)Hook.forest,located in Ancaoxia,Nanping,Fujian,is a precious heritage in the history of China's plantation management.Quantifying its ecological value holds significant theoretical and practical importance for exploring pathways to cultivate high-value plantations.This study focuses on this 4.05 hm² century-old Chinese fir plantation,systematically assessing eight specific indicators across four categories of service functions—provisioning,regulating,supporting,and cultural—based on field measurements of the entire stand and publicly available monitoring data.The results indicate that the total annual value of the stand's ecosystem services is 1.094 8 million CNY·a-1,with a per-unit-area value reaching 0.270 3 million CNY·hm-2·a-1.This is approximately 2.19 times the national average for Chinese fir forests(0.123 4 million CNY·hm-2·a-1),demonstrating its immense ecological value.In terms of value composition,provisioning services(0.496 6 million CNY·a-1,45.36%)and regulating services(0.412 5 million CNY·a-1,37.68%)are the dominant functions.The three highest-value functions are biodiversity conservation(0.283 5 million CNY·a-1),water conservation(0.242 5 million CNY·a-1),and timber product supply(0.213 1 million CNY·a-1),which collectively account for 67.50%of the total value.This signifies that the stand has transitioned from a single-purpose timber production forest to a complex ecosystem with powerful ecological conservation functions.These findings quantify the huge ecological potential and multiple values of century-old Chinese fir plantations,providing a scientific basis for the conservation and management of rare and ancient cultural forests,as well as for the formulation of eco-value-oriented forestry policies in China.