摘要
对西安市植被净化大气物质量及价值测定结果表明 ,植被净化大气年总价值为 34 2 6 35 6亿元 ,占 1999年西安市国内生产总值的 6 % ,其中年固定CO2 和释放O2 的价值为 2 7 1830 9亿元 ,年吸收SO2 、HF和NOX3种污染物的价值为 1 82 896亿元 ,年滞尘价值为 1 82 5 11亿元 ,年灭菌价值为 3 4 2 6 4 0亿元。并通过MapInfo的叠加分析得出各行政区统计结果。
The matter quantities and the value of air purification by vegetation in Xi′an City are estimated. The results show that the total value of air parification by vegetation is 3426 356 million yuan per year, which is 6% of GDP of Xi'an in 1999; the value of fixing CO 2 and releasing O 2 is 2718 309 million yuan per year, the value of absorbing the three pollutants, SO 2?HF?NO X, is 182 896 million yuan per year, the value of dust retention is 182 511 million yuan per year, the value of sterilization is 342 640 million yuan per year. Using the function of overlaying analysis on MapInfo 6 0,the statistical results of each cantonal are gained.
出处
《中国生态农业学报》
CAS
CSCD
2004年第2期180-182,共3页
Chinese Journal of Eco-Agriculture
基金
教育部重大项目 (2 0 0 1DXM70 0 12 )
国家自然科学基金项目 (4 0 3 710 0 3 )
陕西师范大学重点科研基金项目 (995 0 14 )共同资助
关键词
城市植被
大气净化
价值
计量
评价
西安市
Vegetation in city, Air purification, Value, Calculation and assessment
