Carbon Storage and Carbon Density of Forest Vegetation and Their Spatial Distribution Pattern in Yunnan Province

doi:10.13466/j.cnki.lyzygl.2019.05.008

Abstract

Abstract:

By using the data from the Second Survey of Forest Resource Inventory of Yunnan in 2016,we use the methods of Variable Biomass Extension Factor Method and average biomass computing method,and combine them with the calculation parameters of different age grades of each tree species.The carbon storage and density in different stands of forest are estimated and their spatial patterns are analyzed.The results show that the total carbon storage of forest vegetation is 892.596 Tg,and the average forest carbon density is 39.260 t/hm².The carbon storage of arbor forest account for 95.67% of the total carbon storage;and that of trees Yunnan pine (Pinus yunnanensis) and oak accounted for 58.34% of the total carbon storage of arbor forest;their amount increase with developed stages in time,and the carbon storage of young and middle-aged forests only account for 49.97% of the total carbon storage of arbor forest;both of carbon storage and carbon density in natural forest are higher than that in artificial growth forest and plantation forest.The spatial distribution of both of that in Yunnan province is generally higher in the western regions but lower in the eastern regions.For management consideration we suggest that geological and environmental conditions and anthropogenic effects may be the important factors leading to uneven distribution of that.It is an important way to improve the forest carbon storage and carbon storage per unit area in the whole province by strictly protecting and restoring the forest vegetation in the rocky desertification area,it is necessary to carry out the project of precise improvement of forest quality,strengthening the artificial afforestation,tending and the management toward the closure of forests in the mountain and raising the forest,etc.

Key words: forest vegetation, carbon storage, carbon density, spatial distribution, Yunnan province

CLC Number:

S718.5

TANG Haofan, XU Yanhong, AI Jianlin. Carbon Storage and Carbon Density of Forest Vegetation and Their Spatial Distribution Pattern in Yunnan Province[J]. FOREST RESOURCES WANAGEMENT, 2019, (5): 37-43.

Figures/Tables 7

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类型	面积/万 hm²	碳储量/Tg	占总碳储量比例/%	碳密度/(t/hm²)
乔木林	1943.07	853.971	95.67	43.950
经济林	156.52	18.548	2.08	11.850
灌木林	153.40	15.156	1.70	9.880
竹林	20.57	4.922	0.55	23.928
合计	2273.56	892.597	100.00	39.260

树种	面积/万hm²	碳储量/Tg	碳密度/(t/hm²)	树种	面积/万hm²	碳储量/Tg	碳密度/(t/hm²)
云南松Pinus yunnanensis	749.05	269.106	35.926	樟类Cinnamomum	0.24	0.045	18.775
华山松P.armandii	75.81	25.029	33.016	木荷Schima superba	4.35	2.533	58.218
杉木Cunninghamia lanceolata	57.24	15.681	27.395	桦类Betula	22.67	9.796	43.214
冷杉Abies fabri	71.88	50.407	70.130	桤木Alnus cremastogyne	69.04	33.628	48.708
云杉Picea asperata	31.89	27.782	87.118	桉类Eucalyptus	54.06	16.842	31.155
落叶松Larix gmelinii	6.76	3.874	57.282	杨树Populus	3.92	0.894	22.829
柏木Cupressus funebris	7.89	1.723	21.836	泡桐Paulownia fortunei	0.07	0.018	26.472
马尾松P.massoniana	0.15	0.042	28.105	软阔	4.22	1.350	32.022
其他杉类	0.48	0.239	49.732	硬阔	15.44	12.904	83.588
其他松类	0.18	0.110	62.071	其他阔叶树	319.18	142.376	44.607
栎类Quercus	437.63	229.142	52.360	合计	1943.07	853.971	43.950
栲类Castanopsis	10.94	10.450	95.529

起源	天然林			人工林			人工促进林
起源	面积/万 hm²	碳储量/Tg	碳密度/(t/hm²)	面积/万 hm²	碳储量/Tg	碳密度/(t/hm²)	面积/万 hm²	碳储量/Tg	碳密度/(t/hm²)
幼龄林	303.74	67.567	22.245	62.25	6.547	10.517	19.18	3.338	17.406
中龄林	656.51	268.795	40.943	123.63	39.222	31.726	111.73	41.716	37.338
近熟林	267.83	153.216	57.206	69.45	25.307	36.439	28.30	12.786	45.180
成熟林	191.28	151.302	79.098	33.03	13.445	40.707	5.04	3.321	65.863
过熟林	62.51	61.723	98.740	8.46	5.606	66.242	0.11	0.079	71.485
合计	1481.89	702.603	47.413	296.83	90.128	30.364	164.36	61.240	37.260

地区	乔木林面积/万 hm²	乔木林单位面积蓄积量/(m³/hm²)	乔木林碳储量/Tg	森林面积/万 hm²	森林碳储量/Tg	碳密度/(t/hm²)
昆明	91.32	59.752	26.917	102.57	28.203	27.497
曲靖	109.05	52.434	26.446	125.41	28.162	22.456
玉溪	76.35	72.106	28.024	84.85	29.201	34.414
保山	110.15	105.377	56.555	123.95	58.177	46.936
昭通	63.18	70.921	19.902	78.52	21.836	27.808
丽江	125.91	87.752	52.470	140.84	54.067	38.388
普洱	275.23	100.013	122.876	304.88	126.380	41.453
临沧	119.19	86.418	52.529	152.81	56.576	37.024
楚雄	174.20	62.058	55.302	187.59	56.786	30.272
红河	128.13	73.419	45.251	152.18	48.142	31.636
文山	101.83	56.749	27.994	132.67	31.250	23.555
版纳	97.29	152.533	73.595	154.45	80.775	52.299
大理	153.46	68.213	53.494	172.20	55.682	32.337
德宏	69.81	112.972	38.862	76.85	39.880	51.894
怒江	98.51	180.285	78.629	109.85	79.915	72.752
迪庆	149.47	171.682	95.124	173.96	97.563	56.084
全省	1943.07	94.827	853.971	2273.56	892.596	39.260