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| 兰州新区大气环境容量特征 | |
| 引用本文： | 黄涛,李晓霞,王让会.兰州新区大气环境容量特征[J].干旱区地理,2012,35(6):883-889. |
| 作者姓名： | 黄涛 李晓霞 王让会 |
| 作者单位： | 1. 甘肃省公共气象服务中心,甘肃兰州730020;西北区域气候中心,甘肃兰州730020;南京信息工程大学环境科学与工程学院,江苏南京210044 2. 甘肃省公共气象服务中心,甘肃兰州,730020 3. 南京信息工程大学环境科学与工程学院,江苏南京,210044 |
| 基金项目： | 中国气象局干旱气象研究基金(IAM201001)；甘肃省气象局气象科研重点项目(2012-09)；国家973计划(2006CB705809)共同资助 |
| 摘 要： | 通过选取兰州中川机场2008-2010年的地面气象观测资料,利用箱模型,在A值法的基础上,加入了环境变动量,对规划中的兰州新区大气环境容量的年际变化、年变化、日变化等进行了分析.该模型在计算大气环境容量时体现了污染因子在大气环境中的迁移转化规律,能够反映污染物在大气环境中的动态变化过程.结果得到兰州新区SO2全年大气环境容量为15.03×104 t,PM10为18.03×104 t,NO2为15.16×104 t.基本揭示了该地区大气环境容量的特征,将对新区规划建设及污染物排放限额制定起到了一定的指导作用. |
| 关 键 词： | 兰州新区 大气环境容量 特征分析 |
| 收稿时间： | 2011-12-08; |
Characteristics of atmospheric environmental capacity in Lanzhou New District |
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| HUANG Tao,LI Xiao-xia,WANG Rang-hui.Characteristics of atmospheric environmental capacity in Lanzhou New District[J].Arid Land Geography,2012,35(6):883-889. | |
| Authors: | HUANG Tao LI Xiao-xia WANG Rang-hui |
| Institution: | 1 Gansu Public Meteorological Service Center, Lanzhou 730020, Gansu,China; 2 Northwest Region Climate Center, Lanzhou 730020,Gansu, China; 3 Nanjing University of Information Science & Technology, Nanjing 210044,Jiangsu,China |
| Abstract: | The atmospheric environmental capacity refers to the atmospheric environment pollution of a kind of pollutants. Simply speaking, it refers to a pollutant carrying capacity which a regional environment can accept. Environmental capacity is the basis to confirm the index of the pollutant discharge capacity. It will ensure the realization of environmental protection which means that the discharging capacity is smaller than environmental capacity. The Lanzhou New District of 806 km2 area will be located in the Qinwangchuan basin between Gaolan County and Yongdeng County. It is one of major projects which are supported by the State Council of China, the provincial party committee and the government of Gansu Province. The study and the checking of the atmospheric environmental capacity are the precondition and base of atmospheric pollution total amount control. The accurate calculation of atmospheric environmental capacity can provide scientific basis for the regional atmospheric pollution control and environmental planning. At the same time, the limited resources can also be fully utilized, and then promote the scientificity and systematization of the environmental management. After summarizing and analyzing some domestic and overseas studies on the atmospheric environmental capacity calculating methods, A value method, which is the simplest mode, is adopted in this paper to account the atmospheric environmental capacity in Lanzhou. The SO2, PM10 and NO2 are selected as the influence factors. By using the observation data in Zhongchuan airport station from 2008 to 2010, A value method was adopted to count the atmospheric environmental capacity in Lanzhou New District. In the process of calculating the atmospheric environmental capacity, the transportation and diffusion, dry deposition, wet deposition and chemical transformation courses were considered in this thesis. Thus the model can reflect the transference and transformation of atmospheric environmental pollutants, and the dynamic changing process as well. The calculating results of environmental capacity can reflect the actual atmospheric environmental capacity in Lanzhou New District. Also the results acquired in this paper can provide the scientific references for the atmospheric pollution control in Lanzhou New District exactly. The A value in the different seasons is calculated in this paper with the observation data. The results are as follows: the A value is 2.55×104 km2/a to 10.52×104 km2/a. The biggest A value is in April and the smallest is in December. The weighted average A value in a year is 5.42×104 km2/a. The SO2 sensitizes to wet deposition, PM10 sensitizes to dry deposition. Nevertheless, the transportation and diffusion of every pollutant occupy the main position of the atmospheric environmental capacity. Especially the transportation and diffusion of PM10 and NO2 are more than 90%, so their dynamic changing process can be neglected when the atmospheric environmental capacity is calculated. The results indicate that the atmospheric environmental capacity of the SO2 is 15.03×104 t, the PM10 is 18.03×104 t, and the NO2 is 15.16×104 t. |
| Keywords: | Lanzhou New District atmospheric environmental capacity characteristic analysis |
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