陕西省水生态足迹深度与广度时空格局及影响因素

doi:10.13866/j.azr.2023.03.13

Abstract

Abstract:

This study measured the spatiotemporal evolution of water ecological footprint, size, and depth in the Shaanxi Province from 2000 to 2019. In addition, the “cross-section fixed effects model” was used to build an indicator system based on the factors influencing water ecological footprint, including economy, population, environment, agriculture, and water conservancy. The results show that: (1) An upward flactuating trend occurred in the water ecological footprint of Shaanxi Province, with a multi-year average of 14.03 million hm², and agricultural water accounted for the hight average proportion of ecological footprint with 66.65%, while industrial and domestic water accounted for 15.84% and 13.39%, respectively; (2) The interannual distribution of water ecological carrying capacity showed an unbalanced and fluctuating trends with specific values between 6.035 and 37.41 million hm². The annual average of water ecological carrying capacity in Shaanxi was 16.329 million hm², which was higher than the water ecological footprint, and showed a surplus water ecological state; (3) In the past ten years, Shaanxi Province mainly consumed the flow capital of water resources, and the size of the water ecological footprint was at high level. However, a large stock capital consumption of water resources occurred in 2001 and 2016; (4) A large difference in the regional water ecological carrying capacity and water ecological footprint was observed in Shaanxi Province, but with a relatively small inter annual change; (5) The economic development level, population, and reservoir storage capacity showed a significant positive impact on the water ecological footprint of Shaanxi Province. To strengthen the ecological carrying capacity of water resources, Shaanxi Province should further improve and consolidate the construction of water conservancy facilities, increase the reservoir capacity, improve the water resources management system, and strengthen the rigid constraints on water resources.

Key words: water ecological footprint and carrying capacity, water ecological footprint depth, water ecological footprint size, cross-section fixed effects model (CFEM), influencing factors

MA Xiaolei,QIAO Yaqi,WANG Jie,JIAO Shixing,ZHANG Man. The spatiotemporal patterns of water ecological footprints, depth, size, and influencing factors in Shaanxi Province[J].Arid Zone Research, 2023, 40(3): 469-480.

Figures/Tables 11

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	指标类型		指标名称
水生态足迹	经济指标（换算为可比价）		生产总值/10⁹元
			地方一般公共预算收入/10⁴元
			城镇居民人均可支配收入/元
			农村居民人均可支配收入/元
	人口指标		常住人口/10⁴人
	环境指标		人均日生活用水量/L
	环境指标		人均公园绿地面积/m²
	农业指标	种植业	水田面积/10³ hm²
			水浇地面积/10³ hm²
			单位面积粮食产量/（kg·hm^-2）
			节水灌溉类机械/套
		林业	荒山荒地造林面积/hm²
		畜牧业	肉类总产量/t
	水利条件指标		水利建设投资总计/10⁴元
			节水灌溉面积/10³ hm²
			水库库容/10⁴ m³

地区	2000年	2005年	2010年	2019年
西安	0.72	1.00	0.90	0.90
铜川	0.12	0.13	0.33	0.19
宝鸡	0.35	0.59	0.67	0.62
咸阳	0.16	0.15	0.21	0.18
渭南	0.28	0.28	0.32	0.26
延安	0.07	0.08	0.09	0.08
榆林	0.15	0.13	0.13	0.15
汉中	1.47	2.09	2.12	2.45
安康	1.28	2.00	1.90	1.86
商洛	0.75	0.93	1.13	0.60
平均值	0.53	0.74	0.78	0.73

城市	EF_ws/10⁴ hm²				EF_wd
城市	2000年	2005年	2010年	2019年	2000年	2005年	2010年	2019年
西安	106.30	205.44	166.66	170.55	2.85	1.42	1.55	1.82
铜川	1.14	1.35	8.59	2.79	9.28	8.67	1.65	4.97
宝鸡	45.01	103.80	104.13	129.75	2.52	1.00	1.00	1.00
咸阳	5.13	4.48	9.19	6.73	32.58	36.73	21.20	23.04
渭南	21.61	20.65	28.02	18.15	9.25	9.89	8.57	12.88
延安	4.23	4.50	5.97	4.85	5.82	6.46	6.70	9.64
榆林	19.58	16.13	15.46	21.51	4.87	6.49	7.40	6.78
汉中	261.98	262.81	263.47	267.27	1.00	1.00	1.00	1.00
安康	85.12	85.45	104.13	128.43	1.00	1.00	1.00	1.00
商洛	39.67	44.79	44.79	49.59	1.00	1.00	1.00	1.00

地区	2019年水生态盈亏	2000年	2005年	2010年	2019年
西安	赤字	0.15	0.28	0.20	0.17
铜川	赤字	0.01	0.02	0.10	0.04
宝鸡	盈余	0.12	0.28	0.28	0.34
咸阳	赤字	0.01	0.01	0.02	0.01
渭南	赤字	0.04	0.04	0.05	0.03
延安	赤字	0.02	0.02	0.03	0.02
榆林	赤字	0.06	0.05	0.05	0.06
汉中	盈余	0.71	0.70	0.77	0.78
安康	盈余	0.29	0.29	0.40	0.48
商洛	盈余	0.17	0.19	0.19	0.21

The spatiotemporal patterns of water ecological footprints, depth, size, and influencing factors in Shaanxi Province

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