摘要
通过分析海螺沟冰川退缩区原生演替过程中单位面积生态系统服务价值变化,可以为人工生态系统管理、重建、恢复等生态系统正向作用的政策与方针提供一定的帮助。在海螺沟冰川退缩迹地设置6个样地(12,30,40,50,70和120年),根据《森林生态系统服务功能评估规范》(LY/T 1 721-2008),计算不同样地单位面积的营养元素积累、固碳释氧、土壤保持、涵养水源和物种多样性5个方面的生态系统服务价值。结果:(1)生态系统服务价值在样地5达到最大值23 721.95元·hm^(-2)·a^(-1),样地1为最小值7 326.49元·hm^(-2)·a^(-1),单位面积生态服务价值增长速率总体呈现先迅速上升后缓慢下降的过程;(2)单位面积生态系统服务价值在样地1到样地2增长幅度最大为每年+8.22%,在样地2到样地3增长幅度最小为每年-1.64%;(3)在不同样地的生态系统服务功能均以固碳释氧、涵养水源和生物多样性为主。海螺沟冰川退缩区主要生态系统服务功能与其他森林生态系统基本一致,并且在演替过程中,不同样地之间单位面积生态系统服务价值出现显著变化。
By analyzing the changes of ecosystem service value per unit area during the primary succession of the Hailuogou glacier retreat area,it could provide some help for the policies and guidelines of positive effects of artificial ecosystem management,reconstruction and restoration.Six sample plots(12,30,40,50,70 and 120 years)were set up in Hailuogou glacier retreat site.According to the Specification for Assessment of Forest Ecosystem Service Functions(LY/T 1721-2008),the ecosystem service values of different sites were calculated in five aspects:nutrient element accumulation,carbon sequestration and oxygen release,soil conservation,water retention and species diversity per unit area.The results were as follows:(1)The ecosystem service values reached the maximum value of 23721.95 Yuan·hm^(-2)·a^(-1) in sample plot 5 and the minimum value of 7326.49 Yuan·hm^(-2)·a^(-1) in sample plot 1,and the growth rate of ecosystem service values per unit area showed a process of rapid increase at first and then slow decrease.(2)The maximum growth rate of ecosystem service values per unit area was+8.22%per year from plot 1 to plot 2,and the minimum growth rate was-1.64%per year from plot 2 to plot 3.(3)The ecosystem service functions in different sites were mainly carbon sequestration and oxygen release,water conservation and biodiversity.It was found that the main ecosystem service functions in the Hailuogou glacier retreat were basically the same as those in other forest ecosystems,and the ecosystem service values per unit area varies significantly among different sites during the succession process.
作者
秦世豪
付顺
罗辑
QIN Shihao;FU Shun;LUO ji(Collage of Tourism and Urban-Rural Planning,Chengdu University of Technology,Chengdu 610059,China;College of Mathematics and Science,Chengdu University of Technology,Chengdu 610041,China)
出处
《四川林业科技》
2024年第1期50-57,共8页
Journal of Sichuan Forestry Science and Technology
基金
第二次青藏高原综合科学考察项目(2019QZKK0307)。
关键词
生态系统服务价值
原生演替
货币价值评估
海螺沟
ecosystem service value
primary succession
monetary value evaluation
Hailuogou
