Ecological optimization zoning and management based on the spatial coupling of supply and demand accessibility in Jintan District,Changzhou City

doi:10.12302/j.issn.1000-2006.202209018

JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2024, Vol. 48 ›› Issue (6): 210-216.doi: 10.12302/j.issn.1000-2006.202209018

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Ecological optimization zoning and management based on the spatial coupling of supply and demand accessibility in Jintan District,Changzhou City

LÜ Chengxiang¹(), HU Xiuyan², WU Yang², YIN Qiqi¹, ZHANG Zhifei¹, QIN Wendong¹, WANG Junxiao³, ZHOU Shenglu¹^,^*()

1. The Key Laboratory of Coastal Zone Exploitation and Protection, Ministry of Natural Resources, School of Geographic and Oceanic Sciences, Nanjing University, Nanjing 210023, China
2. Jiangdu Branch of Yangzhou Natural Resources and Planning Bureau, Yangzhou 225200, China
3. School of Public Administration, Nanjing University of Finance and Economics, Nanjing 210023, China

Received:2022-09-07 Revised:2024-01-20 Online:2024-11-30 Published:2024-12-10
Contact: ZHOU Shenglu E-mail:lv_chengxiang@126.com;zhousl@nju.edu.cn

Abstract

Abstract:

【Objective】Territorial spatial planning is crucial for building ecological civilization, with ecological space optimization and zoning management serving as the foundation for effective planning.【Method】The study area was Jintan District in Changzhou City. First, we evaluated ecological service values and calculated the ecological service supply-demand ratio. We then assessed the ecological supply-demand coordination degree using an improved potential model to determine ecological supply accessibility. Next, we superimposed the ecological service supply-demand ratio and coordination degree to identify ecological optimization zones. Scenario simulations were conducted with the PLUS model, and control strategies were proposed based on the differences in ecological supply capacity responses between the scenarios.【Result】The study area showed significant spatial variation in ecological supply and demand coupling. We identified four types of ecological optimization zones: supply and demand coordination protection zone (47.3%), supply and demand matching conservation zone (18.8%), supply and demand antagonism cultivation zone (23.1%), and supply and demand loss and gain compensation zone (10.8%). The focus of supply and demand control should be: continuing to protect and enhance ecological service supply capacity, maintaining the coordination of supply and demand quality; protecting and cultivating regional ecological service supply capacity, and improving supply and demand coordination; significantly increasing the quality and quantity of regional ecological supply; and strictly prohibiting ecological occupation and destruction. The supply and demand control scenario improved ecological service supply capacity by 15.6% compared with the natural development scenario.【Conclusion】Ecological optimization zoning based on spatial coupling of supply and demand accessibility effectively addresses regional ecological supply and demand differentiation and prioritizes control implementation.

Key words: ecological optimization zoning, territorial spatial planning, accessibility, supply and demand of ecological services, coupling coordination, PLUS model, Jintan District of Changzhou City

CLC Number:

X321

LÜ Chengxiang, HU Xiuyan, WU Yang, YIN Qiqi, ZHANG Zhifei, QIN Wendong, WANG Junxiao, ZHOU Shenglu. Ecological optimization zoning and management based on the spatial coupling of supply and demand accessibility in Jintan District,Changzhou City[J]. JOURNAL OF NANJING FORESTRY UNIVERSITY, 2024, 48(6): 210-216.

Figures/Tables 6

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一级分类 first class	二级分类 second class	耕地 cropland	园地 garden plot	林地 forest	草地 grassland	水域 water body	其他用地 other land
供给服务 provisioning service	食物生产	3.315	1.270	1.010	0.380	1.000	0.195
	原料生产	0.735	2.280	2.320	0.560	0.250	0.295
	水资源供给	-3.915	1.220	1.200	0.310	16.590	0.165
调节服务 regulating service	气体调节	2.670	7.755	7.630	1.970	0.770	1.040
	气候调节	1.395	21.835	22.830	5.210	3.210	2.655
	净化环境	0.405	6.785	6.690	1.720	41.910	1.015
	水文调节	4.485	15.110	14.940	3.820	143.000	2.015
支持服务 supporting service	土壤保持	1.560	9.445	9.290	2.400	0.950	1.265
	维持养分循环	0.465	0.715	0.710	0.180	0.070	0.095
	生物多样性	0.510	8.590	8.460	2.180	7.530	1.150
文化服务cultural service	美学景观	0.225	3.775	3.710	0.960	10.570	0.505

Ecological optimization zoning and management based on the spatial coupling of supply and demand accessibility in Jintan District,Changzhou City

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