Ecological remediation zoning of territory based on the ecological security pattern recognition: Taking Jiawang district of Xuzhou city as an example

Qing-lin NI; Hu-ping HOU; Zhong-yi DING; Yi-bo LI; Jin-rong LI

doi:10.31497/zrzyxb.20200117

Journals >Journal of Natural Resources >Volume 35 >Issue 1 >Page 204 > Article

Journal of Natural Resources
Vol. 35, Issue 1, 204 (2020)

Ecological remediation zoning of territory based on the ecological security pattern recognition: Taking Jiawang district of Xuzhou city as an example

Qing-lin NI¹, Hu-ping HOU^1、2, Zhong-yi DING^1、2、*, Yi-bo LI³, and Jin-rong LI¹

Author Affiliations

¹School of Environment Science and Spatial informatics, China University of Mining and Technology, Xuzhou 221116, Jiangsu, China

²Jiangsu Key Laboratory of Resources and Environmental Information Engineering, CUMT, Xuzhou 221116, Jiangsu, China

³Xuzhou Institute of Ecological Civilization Construction, Xuzhou 221008, Jiangsu, China

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DOI: 10.31497/zrzyxb.20200117 Cite this Article

Qing-lin NI, Hu-ping HOU, Zhong-yi DING, Yi-bo LI, Jin-rong LI. Ecological remediation zoning of territory based on the ecological security pattern recognition: Taking Jiawang district of Xuzhou city as an example[J]. Journal of Natural Resources, 2020, 35(1): 204 Copy Citation Text

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Fig. 1. Sketch map of physical geography and land use of study area

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Fig. 2. Distribution of ecological resistance surface in Jiawang district in 2000-2016

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Fig. 3. Distribution of ecological source and corridors in Jiawang district in 2000-2016

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Fig. 4. Distribution of potential barrier areas in Jiawang district in 2000-2016

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Fig. 5. Zoning of ecological remediation in Jiawang district

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Fig. 6. Relationship of background elements and ecological remediation zones in Jiawang district

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评价类型		计算公式	参数
生态景观连通性	整体连通性	$dII C_{k} = dIICi n_{k} + dIICfl u_{k} + dIICco n_{k}$	dIICin_k/dPCin_k表示斑块k属性对自身连接性的贡献;dIICflu_k/dPCflu_k表示斑块k自身属性的权重;dIICcon_k/dPCcon_k表示斑块k对维持其他斑块间的连接作用
生态景观连通性	可能连通性	$dP C_{k} = dPCi n_{k} + dPCfl u_{k} + dPCco n_{k}$
生态因子敏感性	各因子	$P_{i} = \overset{i = n}{\sum_{i = 1}} F_{i} W_{i}$	P_i为生态敏感性综合评价得分;W_i为第i个因子影响权重;F_i为第i个因子的生态敏感性指数
生态系统服务重要性	水源涵养	$Y (x) = (1 - \frac{AET (x)}{P (x)}) \times P (x)$	Y(x)为像元x年产水量;AET(x)为像元x年实际蒸散量;P(x)为像元x年降水量
	固碳释氧	$NPP (x, t) = APAR (x, t) \times ε (x, t)$	APAR(x, t)为t时间像元x吸收光合有效辐射(g C·m^-2·month^-1);ε(x, t)为实际光能利用率(g C·MJ^-1)
	多样性保护	$Q_{xj} = H_{xj} (1 - (\frac{D_{xj}^{z}}{D_{xj}^{z} + k^{z}}))$	Q_xj为土地利用类型j中像元x的生境质量;H_xj为生境适宜性;D_xj为生境胁迫水平;k=D_xj/2为半饱和常数;z=2.5为归一化常量

Table 1. Identification method of ecological source

年份	耕地面积/km(占比/%)	园林地面积/km(占比/%)	草地面积/km(占比/%)	水域面积/km(占比/%)	建设用地面积/km(占比/%)	未利用地面积/km(占比/%)	源地总面积/km(占比/%)
2000	80.16(58.3)	32.05(23.3)	3.07(12.4)	17.06(12.4)	3.15(2.3)	2.07(1.5)	137.56(100)
2008	49.22(48.4)	28.75(28.3)	2.94(2.9)	16.72(16.4)	2.45(2.4)	1.64(1.6)	101.72(100)
2016	61.39(51.6)	30.39(25.5)	3.32(2.8)	22.36(18.8)	1.49(1.3)	0.07(0.1)	119.02(100)

Table 2. Area statistics of land-cover in the ecological source

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