宁夏近60 a 大气环境容量变化特征及其影响因子
为研究宁夏大气环境容量变化及其影响因子，利用1961—2018年气象站逐日历史观测资料，根据箱模型原理对宁夏大气环境容量A（污染物排放总量控制系数）值时空分布及其主要气象影响因子进行分析，并对2018年大气环境容量进行区划评估。结果表明：宁夏各季节大气环境容量A 值总体呈减小趋势，速率为-0.47×104～-0.24×104 km2·(10a)-1。各季节A 值夏季最大，春季次之，秋季和冬季较小。月A 值呈单峰型变化，8月最大、12月最小，空间上呈南高北低的分布特点。受贺兰山、六盘山地形及区域降水量等因素影响，A 值低值中心位于银川市和石嘴山市，高值中心位于固原市南部地区。风速和混合层高度变化对宁夏大气环境容量A 值年代际演变趋势具有决定影响；降水和风速对其影响存在明显季节和地区差异，风速对北部春季A 值贡献较大，降水对中南部夏秋季A 值贡献较大。受冶金、火电、化工、建筑等高耗能产业和车辆排放影响，平罗县和利通区属于宁夏大气环境SO2、NOx临界及以下等级承载区，利通区以南各地为高承载区。
his study has aimed to evaluate the characteristics of the atmospheric environmental capacity and itsinfluencing factors in Ningxia. The temporal and spatial distribution of the A value of the atmosphericenvironmental capacity and its main meteorological influencing factors were analyzed using daily fixed timehistorical observation data from meteorological stations between 1961 and 2018, based on the box modelprinciple. The atmospheric environmental capacity in 2018 was also evaluated and zoned. The results showed thatthe A value of the atmospheric environmental capacity showed a decreasing trend in all seasons, with a rate of-0.47 ×104~-0.24 ×104 km2 ·(10a) ? 1. The annual average A value was largest in the summer, followed by thespring, and then autumn and winter. The monthly A value showed a single peak pattern, with a maximum inAugust and minimum in December. It was generally high in the south and low in the north in space, andinfluenced by the topography of Helan Mountain and Liupan Mountain, regional precipitation, and other climaticfactors. The low value center for A was located in Yinchuan and Shizuishan City, while the high value center waslocated in the south of Guyuan City. Wind speed and mixed layer height changes had a significant influence onthe interdecadal evolution trend of the atmospheric environmental capacity of A in the Ningxia Hui AutonomousRegion. There were obvious seasonal and regional differences on the impacts of precipitation and wind speed.For example, wind speed had a greater contribution to the A value in spring in the north, and precipitation had agreater contribution to the A value in summer and autumn in the south. This was affected by high energyconsuming industries such as metallurgy, thermal power, the chemical industry, and construction and vehicleemissions. Pingluo County and Litong District were the critical overload and overload areas for the SO2 and NOxatmospheric environments, and the counties south of Litong District were high bearing areas in Ningxia.
崔洋1,2、高睿娜1,2、安兴琴3、王岱1,2
环境污染、环境污染防治环境科学技术现状环境管理
大气环境容量大气环境承载力指数气象影响因子剩余容量宁夏
崔洋1,2,高睿娜1,2,安兴琴3,王岱1,2.宁夏近60 a 大气环境容量变化特征及其影响因子[EB/OL].(2023-08-25)[2025-08-19].https://chinaxiv.org/abs/202308.00248.点此复制
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