Effects of Land Use on Carbon Emission and Carbon Footprint in Karst Area of Guizhou

doi:10.13466/j.cnki.lyzygl.2018.06.010

Abstract

Abstract:

Based on the statistic area data of land utilization and energy consumption from 2006 to 2016 in Guizhou Province,we analyzed the effects of land uses on carbon emission and carbon footprint in Guizhou province.The conclusion could be drawn as follows:(1) The information entropy and equilibrium degree of land use structure showed an increase trend,indicating that the land use structure of Guizhou Province is becoming more and more balanced,the heterogeneity is enhanced,and the land use system evolves to a relatively disorderly state.(2) The carbon emission gradually increased from 2006 to 2016,and construction land is the main carbon source,while woodland is the main carbon sink.(3) Carbon absorption gradually decreased from 2006 to 2016,and the total amount of carbon absorbed by forest land and grassland remains relatively stable.(4) Carbon emission intensity gradually decreased from 2006 (2.65 t/ten thousand yuan) to 2016 (1.23 t/ten thousand yuan),while less than GDP growth rate.(5) The area of forest and grassland increased from 2006 to 2016,and the ecological carrying capacity generally increased,but it is far from the increase speed of the total carbon footprint.The ecological deficit increased with the increase of the total carbon footprint year by year,indicating that Guizhou's own ecosystem is not enough to compensate for the carbon emissions of energy consumption.In terms of the carbon footprint of different energy consumption,the carbon footprint of coal energy is far larger than that of oil and gas,indicating that the energy consumption dominated by coal will bring a larger total carbon footprint.(6) There is a significant annual change in the carbon emissions,with the per capita carbon emissions increasing year by year,mainly due to the annual increase of net carbon emissions,and the carbon emissions of cultivated land,woodland,grassland and construction land all show an increasing trend,mainly for the carbon emissions of construction land.

Key words: Guizhou, Karst area, land use, carbon emission, carbon footprint

CLC Number:

X24
F301.24

SONG Shanmei, XIANG Junfeng. Effects of Land Use on Carbon Emission and Carbon Footprint in Karst Area of Guizhou[J]. FOREST RESOURCES WANAGEMENT, 2018, (6): 57-63.

Figures/Tables 6

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年份	耕地/%	园地/%	林地/%	草地/%	居民用地/%	交通/%	水域/%	未利用地/%	信息熵	均衡度
2006	25.51	0.69	44.95	9.09	2.56	0.60	1.26	15.34	1.4273	0.6864
2007	25.47	0.69	44.92	9.07	2.57	0.61	1.33	15.34	1.4303	0.6878
2008	25.46	0.69	44.90	9.07	2.59	0.62	1.36	15.31	1.4318	0.6886
2009	25.48	0.70	44.89	9.06	2.58	0.61	1.38	15.30	1.4326	0.6892
2010	25.49	0.69	44.87	9.07	2.59	0.61	1.39	15.29	1.4329	0.6917
2011	25.53	0.69	44.87	9.06	2.60	0.62	1.42	15.21	1.4335	0.6965
2012	25.52	0.68	44.85	9.05	2.61	0.63	1.46	15.20	1.4349	0.6973
2013	25.61	0.71	44.83	9.05	2.61	0.65	1.48	15.06	1.4358	0.6989
2014	25.62	0.70	44.81	9.06	2.62	0.64	1.51	15.04	1.4406	0.7016
2015	25.67	0.69	44.80	9.04	2.63	0.66	1.52	14.99	1.4425	0.7038
2016	25.70	0.70	44.73	9.04	2.63	0.68	1.55	14.97	1.4441	0.7061

年份	碳源			碳汇
年份	建设用地	耕地	总排放	林地	草地	总吸收
2006	4823.26	182.06	5005.32	508.63	3.19	511.82
2007	5048.95	183.59	5232.54	509.78	3.21	512.99
2008	5302.69	189.16	5491.85	509.16	3.22	512.38
2009	5978.13	189.92	6168.05	513.02	3.26	516.28
2010	5993.21	192.25	6185.46	512.69	3.25	515.94
2011	6128.98	193.48	6322.46	516.78	3.26	520.04
2012	6302.54	195.64	6498.18	523.63	3.29	526.92
2013	6459.23	198.02	6657.25	568.98	3.29	572.27
2014	6605.78	199.16	6804.94	594.23	3.31	597.54
2015	6897.26	199.98	7097.24	613.02	3.35	616.37
2016	7015.13	203.45	7218.58	668.97	3.37	672.34

年份	煤炭		石油		天然气		总碳足迹	生态承受力	生态赤字	人均碳足迹
年份	森林面积	草地面积	森林面积	草地面积	森林面积	草地面积	总碳足迹	生态承受力	生态赤字	人均碳足迹
2006	1023.56	856.12	34.26	28.12	6.12	5.14	1945.23	951.26	996.56	0.52
2007	1085.14	903.58	36.01	31.13	6.32	5.30	2018.79	951.02	1123.24	0.55
2008	1125.29	926.14	41.58	37.89	5.83	4.89	2156.34	950.56	1172.56	0.56
2009	1245.69	1035.68	44.26	42.01	5.14	4.31	2345.69	950.14	1478.24	0.58
2010	1236.78	1037.59	45.78	43.56	5.09	4.27	2356.14	949.86	1492.06	0.61
2011	1298.75	1065.02	46.98	45.78	4.89	4.01	2401.58	949.53	1523.24	0.63
2012	1306.25	1098.91	47.02	46.32	4.78	3.98	2436.75	949.26	1569.87	0.69
2013	1398.56	1123.05	47.85	47.99	4.71	3.67	2501.49	934.02	1654.27	0.71
2014	1423.51	1129.78	49.21	49.02	4.62	3.52	2589.75	921.78	1698.98	0.75
2015	1495.03	1231.47	49.39	50.15	4.51	3.49	2613.78	911.58	1756.02	0.79
2016	1547.17	1289.26	50.12	51.48	4.37	3.31	2668.72	904.71	1801.45	0.83

年份	碳排放/万t					城市人口 /万人	GDP /亿元	人均GDP/ (万元/人)	人均碳排放/ (t/人)
年份	耕地	林地	草地	建设用地	净碳排放量	城市人口 /万人	GDP /亿元	人均GDP/ (万元/人)	人均碳排放/ (t/人)
2006	182.06	-508.63	-3.19	4823.26	4493.5	3690	4673.85	1.27	1.22
2007	183.59	-509.78	-3.21	5048.95	4719.55	3632	4899.90	1.35	1.30
2008	189.16	-509.16	-3.22	5302.69	4979.47	3596	5159.82	1.43	1.38
2009	189.92	-513.02	-3.26	5978.13	5651.77	3537	5832.12	1.65	1.60
2010	192.25	-512.69	-3.25	5993.21	5669.52	3479	5849.87	1.68	1.63
2011	193.48	-516.78	-3.26	6128.98	5802.42	3469	5982.77	1.72	1.67
2012	195.64	-523.63	-3.29	6302.54	5971.26	3484	6151.61	1.77	1.71
2013	198.02	-568.98	-3.29	6459.23	6084.98	3502	6265.33	1.79	1.74
2014	199.16	-594.23	-3.31	6605.78	6207.4	3508	6387.75	1.82	1.77
2015	199.98	-613.02	-3.35	6897.26	6480.87	3530	6661.22	1.89	1.84
2016	203.45	-668.97	-3.37	7015.13	6546.24	3555	6726.59	1.89	1.84