Multiscale Spatio-Temporal Characteristics of Carbon Emission of Energy Consumption in Yellow River Basin Based on the Nighttime Light Datasets
Received date: 2020-01-12
Revised date: 2020-09-02
Online published: 2025-04-11
This study applies the four-step method to integrate and correct the DMSP-OLS and NPP-VIIRS nighttime light datasets,so as to obtain the long time series of nighttime light datasets in the Yellow River Basin from 1995 to 2016. and constructs the multiscale carbon emissions estimation model for the Yellow River Basin based on the statistical data of provincial energy consumption. This paper analyzes the spatio-temporal characteristics of carbon emissions of energy consumption in the Yellow River Basin from the provincial,prefectural,county and grid scales by using the estimation model and the exploratory spatial analysis. The results show that: 1) The fitting precision using integrated model is 0.8354,which meets the accuracy requirement. And the fitting precision reaches 0.8482 based on multiscale carbon emissions estimation model,the average relative error of accuracy test is 17.25%,which indicates the estimation model is effective. 2) It shows a significant continuous expansion on the carbon emissions. Inner Mongolia Autonomous Region,Shanxi Province and Henan Province are at the highest level on carbon emissions. The cities which are located in Shandong Province,Shaanxi Province and Inner Mongolia Autonomous Region are mainly at the higher level of carbon emissions. The counties with higher level of carbon emissions are basically distributed in Guangyuan and Neijiang in Sichuan Province,Qingxu in Shanxi Province,Uxin Banner and Jungar Banner in Inner Mongolia Autonomous Region,and Zaozhuang,Jining and Jinan in Shandong Province. 3) It has significant positive spatial correlation on the carbon emissions,and the growth of the global correlation on provincial scale is the largest. Only Gansu Province shows low-low agglomeration pattern. The urban agglomeration trend is caused by the high carbon accumulation areas in Inner Mongolia Autonomous Region and Shandong Province,as well as by the low carbon accumulation areas in Gansu Province and Qinghai Province. The agglomeration trend at the county level is caused by high and low carbon accumulation areas.
LYU Qian , LIU Haibin . Multiscale Spatio-Temporal Characteristics of Carbon Emission of Energy Consumption in Yellow River Basin Based on the Nighttime Light Datasets[J]. Economic geography, 2020 , 40(12) : 12 -21 . DOI: 10.15957/j.cnki.jjdl.2020.12.002
表1 2012和2013年DMSP-OLS与NPP-VIIRS拟合参数值Tab.1 Fitting parameters of DMSP-OLS and NPP-VIIRS in 2012 and 2013 |
模型 | 拟合函数 | a | b | c | d | e | R2 |
---|---|---|---|---|---|---|---|
(1) | 5.2948 | 2 415.9 | - | - | - | 0.7701 | |
(2) | 0.00003 | 2.6539 | 4 726.5 | - | - | 0.8354 | |
(3) | 4 067.3 | 0.00009 | - | - | - | 0.0336 | |
(4) | 62.695 | 0.6738 | - | - | - | 0.2847 |
表2 2014—2016年NPP-VIIRS拟合参数Tab.2 Fitting parameters of NPP-VIIRS in 2014-2016 |
年份 | 拟合函数 | a | R2 |
---|---|---|---|
2014 | 1.0600 | 0.9993 | |
2015 | 1.2636 | 0.9942 | |
2016 | 1.3272 | 0.9881 |
表3 燃料消耗碳排放系数Tab.3 Coefficients of carbon emissions of fuel consumption |
能源种类 | 原煤 | 洗精煤 | 焦炭 | 原油 | 汽油 | 煤油 | 柴油 | 燃料油 | 液化石油气 | 天然气 | 焦炉煤气 | 炼厂干气 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
折算标准煤系数 | 0.7143 | 0.9000 | 0.9714 | 1.4286 | 1.4714 | 1.4714 | 1.4571 | 1.4286 | 1.7143 | 1.1~1.33 | 0.5714~0.6143 | 1.5714 |
碳排放系数 | 0.7559 | 0.7559 | 0.8550 | 0.5857 | 0.5538 | 0.5714 | 0.5921 | 0.6185 | 0.5042 | 0.4483 | 0.3548 | 0.4602 |
表4 碳排放估算模型相对误差(%)Tab.4 Relative error of carbon emission estimation model(%) |
省市地区 | 1995 | 2000 | 2005 | 2010 | 2016 |
---|---|---|---|---|---|
内蒙古自治区 | 5.38 | 7.18 | -30.33 | -25.03 | -10.20 |
山东省 | 59.70 | 76.04 | -12.77 | -19.89 | 42.02 |
河南省 | 19.20 | 41.35 | -6.00 | -14.82 | 49.19 |
四川省 | -64.94 | -19.78 | -13.88 | -33.76 | -1.85 |
陕西省 | 6.34 | 103.33 | 18.98 | 13.81 | 51.97 |
甘肃省 | -23.39 | -7.74 | -4.38 | 8.72 | 41.28 |
青海省 | 110.06 | 109.49 | 143.80 | 52.09 | 26.84 |
宁夏回族自治区 | 152.87 | 28.40 | 13.27 | 10.28 | -1.79 |
山西省 | 7.71 | 15.18 | -4.19 | -12.64 | 15.83 |
高精度占比 | 55.56 | 44.44 | 77.78 | 66.67 | 44.44 |
表5 全局相关性分析结果Tab.5 Global correlation analysis results |
1995 | 2005 | 2010 | 2016 | ||
---|---|---|---|---|---|
省级 | Moran I | 0.2509 | 0.4688 | 0.4848 | 0.5534 |
z | 1.3107 | 2.4282 | 2.4006 | 2.4830 | |
p | 0.1899 | 0.0151 | 0.0163 | 0.0130 | |
市级 | Moran I | 0.1246 | 0.4441 | 0.4064 | 0.3088 |
z | 3.1212 | 9.7935 | 8.9792 | 6.8660 | |
p | 0.0018 | 0.0000 | 0.0000 | 0.0000 | |
县级 | Moran I | 0.1554 | 0.3122 | 0.2896 | 0.2359 |
z | 15.9173 | 31.6565 | 29.4000 | 24.0290 | |
p | 0.0000 | 0.0000 | 0.0000 | 0.0000 |
表6 市级局域LISA集聚格局Tab.6 LISA cluster pattern at the municipal level |
省份 | HH | HL | LH | LL |
---|---|---|---|---|
内蒙古 | 鄂尔多斯、呼和浩特 | |||
山东 | 临沂、青岛、潍坊、烟台、延安、临汾、晋中、吕梁、榆林 | 莱芜 | ||
四川 | 成都 | |||
甘肃 | 陇南、甘南藏族自治州、定西、临夏回族自治州、武威市、金昌市、张掖市 | |||
青海 | 果洛藏族自治州、黄南藏族自治州、海东地区、海南藏族自治州、海北藏族自治州 |
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