秦巴山区植被固定CO2释放O2生态价值测评

doi:10.11821/yj2004060007

地理研究 ›› 2004, Vol. 23 ›› Issue (6): 769-775.doi: 10.11821/yj2004060007

秦巴山区植被固定CO₂释放O₂生态价值测评

任志远, 李晶

陕西师范大学旅游与环境学院,西安710062

收稿日期:2004-03-08 修回日期:2004-06-27 出版日期:2004-12-15 发布日期:2004-12-15
作者简介:任志远,(1953-),男,陕西人,教授,博士生导师。主要从事国土资源开发与生态环境评价研究, 发表论文60余篇。E-mail:renzhy@snnu.edu.cn
基金资助:
教育部重大项目(2001DXM700012);教育部重点项目(01158);国家自然科学基金资助项目(30070083)

The values of CO₂ fixation and O₂ release by vegetation ecosystem in Qinling-Daba Mountains of Shaanxi Province

REN Zhi-yuan, LI Jing

College of Tourism and Environment, Shaanxi Normal University, Xi’an 710062, China

Received:2004-03-08 Revised:2004-06-27 Online:2004-12-15 Published:2004-12-15

摘要/Abstract

摘要：

根据陕南秦巴山区植被类型及覆盖度的差异 ,利用改进型的自然植被NPP测算模型 ,结合区域能量平衡、水量平衡和蒸散模式 ,测定了植被有机质生产物质量。在此基础上 ,根据光合作用方程及造林成本法与工业制氧法测定了秦巴山区植被固定CO2 释放O2 的经济价值。研究结果 :①秦巴山区植被每年固定CO2 总量为 13 5× 10 7t/a ,释放O2 总量为 9 93× 10 7t/a ;②利用造林成本法估算出秦巴山区植被固定CO2 总经济价值为 35 2 2 4× 10 7元 /a ;③利用造林成本法与工业制氧法估算出秦巴山区植被释放O2 经济价值为 374 19× 10 8元 /a ;④本区植被固定CO2 释放O2 物质量和价值量中 ,温带落叶阔叶林贡献率最高 ,其次是亚热带落叶灌丛。本研究可为区域“绿色经济账户”的建立提供基础数据和方法。

关键词: 植被固碳释氧, 经济价值测评, 陕南秦巴山区

Abstract:

According to different vegetation types and their cover degrees in Qinling-Daba Mountains in Shaanxi, using an improved model of net primary productivity of natural vegetation, regional energy balance, water balance and model of evapo-transpiration, goods produced by different types of vegetation have been calculated. Based on net primary productivity of natural vegetation, using equation of photosynthesis, reforestation cost and industrial method of making O 2, the value of CO 2 fixation and O 2 release by vegetation ecosystem in Qinling-Daba Mountains in Shaanxi can be estimated. The results are as follows:① the total CO 2 fixation and O 2 release is 13.5×10 7 t/a, 9.93×10 7 t/a, respectively. ② Using reforestation cost ,the value of CO 2 fixation is 352.24 billion RMB yuan/a. ③Using reforestation cost and industrial method of making O 2 , the value of O 2 release is 374.19 billion RMB yuan/a. ④The temperate deciduous broad-leaved forest has the highest contribution rate, the second is subtropical deciduous shrub. This study can provide basic data and methods for setting up regional “green eco-account”.

Key words: vegetation CO 2 fixation, O 2 release, economic value, Qinling-Daba Mountains in Shaanxi Province

任志远, 李晶. 秦巴山区植被固定CO₂释放O₂生态价值测评[J]. 地理研究, 2004, 23(6): 769-775.

REN Zhi-yuan, LI Jing. The values of CO₂ fixation and O₂ release by vegetation ecosystem in Qinling-Daba Mountains of Shaanxi Province[J]. GEOGRAPHICAL RESEARCH, 2004, 23(6): 769-775.

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秦巴山区植被固定CO₂释放O₂生态价值测评

The values of CO₂ fixation and O₂ release by vegetation ecosystem in Qinling-Daba Mountains of Shaanxi Province

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