Spatial-temporal pattern and regional regulation of supply and demand of ecosystem services in the Yangtze River Delta integration demonstration zone

doi:10.3969/j.issn.1000-5641.2023.06.014

Abstract

Abstract:

The balance between supply and demand of ecosystem services is essential for sustainable development, while differentiated partitioning is important for optimal resource allocation. Based on the carnegie-ames-stanford-approach (CASA), the water balance equation, and the revised universal soil loss equation (RUSLE), this study depicts the supply and demand of carbon fixation and water and soil conservation services and their relationship in the Yangtze River Delta integration demonstration zone from 2000 to 2020. Self-organizing map (SOM) K-means two-order clustering technology is used to identify ecosystem service clusters dividing the ecological management zone. Management strategies are then proposed. The results show that: ① The supply of carbon fixation services continued to decrease but the demand increased. Additionally, the supply and demand of water and soil conservation services showed an increasing trend, and supply was less than demand. ② The supply-demand ratio of carbon fixation and soil conservation services showed an upward trend, whereas the supply-demand ratio of water conservation services showed a downward trend. Significant spatial differences were observed in the supply-demand ratio of ecosystem services. ③ Cluster analysis divided the demonstration area into different types of ecological regulation zones. The urban clusters in Wujiang and Shengze town districts are mainly to improve the capacity of water conservation services. The urban cluster in Qingpu District is to promote the water conservation and carbon fixation services capacity. The pilot start-up area and urban cluster in Jiashan City have a small gap between supply and demand, which focus on comprehensive protection. This study can provide decision-making support for resource allocation, ecological compensation, and coordinated development of regional integration in the demonstration area.

Key words: integrated demonstration zone, ecosystem service, supply and demand patterns, SOM+K-means cluster analysis, ecological management zone

CLC Number:

X171.1

Man PENG, Yiping SHAO, Bei PEI, Mengjie YANG, Gen LI, Wanruo WEN, Kai YANG. Spatial-temporal pattern and regional regulation of supply and demand of ecosystem services in the Yangtze River Delta integration demonstration zone[J]. Journal of East China Normal University(Natural Science), 2023, 2023(6): 145-157.

Figures/Tables 10

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数据类型	来源
气象数据	国家气象数据网 ( http://data.cma.cn)、Earthdata-NASA ( https://search.earthdata.nasa.gov/search)
归一化植被指数	中科院资源与环境数据中心 ( https://www.resdc.cn)
土地利用数据	中科院资源与环境数据中心 ( https://www.resdc.cn)
土壤相关数据	寒旱区科学数据中心 ( http://westdc.westgis.ac.cn)
数字高程模型数据	地理空间数据云 ( http://www.gscloud.cn)
社会经济数据	中科院资源与环境数据中心 ( https://www.resdc.cn)、《中国能源统计年鉴》

年份	碳固持服务/ (g·m^–2·a^–1)	水源涵养服务/ (mm·a^–1)	水土保持服务/ (t·hm^–2·a^–1)
2000	1153.23	179.02	10.90
2010	866.74	174.28	13.77
2020	714.62	281.51	31.03

年份	碳固持服务/ (g·m^–2·a^–1)	水源涵养服务/ (mm·a^–1)	水土保持服务/ (t·hm^–2·a^–1)
2000	686.45	2116.63	24.57
2010	2034.21	2904.37	25.40
2020	3800.41	3173.89	66.57

年份	QE	TE	DBI	聚类数
2000	0.402	0.036	0.5259	6
2010	0.305	0.107	0.5544	4
2020	0.415	0.107	0.6089	4

聚类等级	碳固持服务			水源涵养服务			水土保持服务
聚类等级	2000年	2010年	2020年	2000年	2010年	2020年	2000年	2010年	2020年
Ⅰ	0.47	1.41	3.48	9.00	11.22	6.53	2.01	2.10	2.22
Ⅱ	0.35	6.78	7.79	7.13	57.96	20.78	3.61	1.60	2.10
Ⅲ	0.90	2.39	15.63	20.32	18.17	54.07	2.74	1.72	2.10
Ⅳ	1.63	1.23	3.44	41.58	7.78	6.18	2.34	3.41	3.13
Ⅴ	0.67			21.15			2.23
Ⅵ	0.54			15.21			3.59