基于土地生态敏感性评价的生态产品价值分区实现研究——以阿勒泰市为例

doi:10.12118/j.issn.1000－6060.2023.206

Abstract

Abstract:

A beautiful ecological environment is critical to the sustainable survival and development of humans and is a prerequisite for China’s ecological civilization. The sensitivity evaluation of the ecological environment in Altay City, Xinjiang, China was performed using GIS software. The results are as follows: (1) The degree of sensitivity impact on the ecological environment in Altay City is ranked from large to small: land-use type>vegetation coverage>river buffer zone>road buffer zone>elevation>slope>aspect. (2) The overall ecological sensitivity of Altay City is high. Areas with high sensitivity or above account for 42.45% of the total study area and are mainly distributed in the northern mountainous and central hilly areas and around the Ertix River. Areas with low sensitivity levels are mainly distributed in the central hills and mountainous alluvial plains. (3) Based on the ecological sensitivity evaluation results, Altay City is divided into three regions: ecological protection zone, ecological improvement zone, and ecological protection and governance zone. Ecological product value realization models should be proposed on the basis of the characteristics of each zone, such as improving ecological compensation, distinctive ecological tourism, ecological agriculture, and conducting ecological governance and restoration, providing practical reference for the realization of ecological product value in Altay City.

Key words: ecological sensitivity assessment, ecological products, ecological zoning, value realization mode, Altay City

YAN Tianliang, WANG Chengwu, CHEN Mengxi, CHEN Xuan, ZHAO Wenjing. Implementation of ecological product value zoning based on land ecological sensitivity assessment: Using Altay City as an example[J].Arid Land Geography, 2024, 47(4): 612-621.

Figures/Tables 9

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References 24

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目标层	准则层	指标层	不敏感	轻度敏感	中度敏感	高度敏感	极度敏感	参考依据
生态环境敏感性综合评价	地形地貌因子	高程/m	<500	500~1000	1000~1500	1500~2000	>2000	梅堂军^[9]
		坡度/(°)	<8	8~15	15~25	25~45	>45	刘培亮等^[7]
		坡向	平地、正南	东南、西南	正东、正西	东北、西北	正北	张涵^[11]
	生态环境因子	河流缓冲区/m	>1000	800~1000	500~800	200~500	<200	丁鸿浩等^[12]
	生态环境因子	植被覆盖度	<0.2	0.2~0.4	0.4~0.6	0.6~0.8	>0.8	张广创等^[13]
	人类活动因子	土地利用类型	人造地表裸地	耕地	草地	林地	水体、湿地等	亚库普·约麦尔等^[14]
	人类活动因子	道路缓冲区/m	>1200	1200~900	900~600	600~300	<300	白天等^[15]

评级因子			AHP 权重	CRITIC 权重	综合权重
目标层	准则层	指标层	AHP 权重	CRITIC 权重	综合权重
生态环境敏感性综合评价	地形地貌因子	高程	3.11	21.08	8.50
		坡度	4.52	12.68	6.97
		坡向	3.55	8.82	5.13
	生态环境因子	河流缓冲区	12.14	16.48	13.44
	生态环境因子	植被覆盖度	23.33	6.23	18.20
	人类活动因子	土地利用类型	43.97	15.45	35.41
	人类活动因子	道路缓冲区	9.38	19.26	12.35

评价指标		不敏感		低度敏感		中度敏感		高度敏感		极度敏感
评价指标		面积/km²	占比/%	面积/km²	占比/%	面积/km²	占比/%	面积/km²	占比/%	面积/km²	占比/%
单因子	高程	1305.89	12.10	3940.95	36.52	1218.21	11.29	1230.41	11.40	3095.43	28.69
	坡度	5624.73	52.20	2091.23	19.41	1780.36	16.52	1208.12	11.21	68.92	0.64
	坡向	1772.75	16.45	2860.19	26.54	2531.51	23.49	2425.57	22.51	1183.34	10.98
	河流缓冲区	6360.49	58.94	798.98	7.40	1281.63	11.88	1374.24	12.74	972.96	9.02
	植被覆盖度	3838.39	35.57	1834.80	17.00	1798.75	16.67	1687.69	15.64	1631.73	15.12
	土地利用类型	3099.52	28.72	1172.34	10.86	4442.44	41.17	1538.49	14.26	538.14	4.99
	道路缓冲区	7085.61	65.66	833.94	7.73	894.37	8.29	957.46	8.87	1019.52	9.45
综合	综合敏感性	1956.30	18.15	1551.33	14.40	2689.04	24.95	2946.40	27.34	1627.83	15.11

二级分区	面积/km²	不敏感占比/%	低度敏感占比/%	中度敏感占比/%	高度敏感占比/%	极度敏感占比/%
Ⅰ₁-北部山地生态保护区	3815.74	0.00	0.01	0.26	0.42	0.30
Ⅰ₂-额河流域生态保护区	573.15	0.08	0.08	0.16	0.41	0.28
Ⅱ₁-中部低山生态提升区	2509.99	0.07	0.15	0.35	0.33	0.11
Ⅱ₂-两河流域生态提升区	1794.28	0.11	0.38	0.34	0.14	0.03
Ⅲ₁-额河冲积平原生态防护治理区	1557.87	0.74	0.21	0.04	0.01	0.00
Ⅲ₂-准噶尔盆地边缘生态防护治理区	528.92	0.74	0.17	0.08	0.01	0.00

Implementation of ecological product value zoning based on land ecological sensitivity assessment: Using Altay City as an example

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