Ecosystem health assessment method of eco-redline based on land use and landscape pattern in Nanjing

Shou-guang YAN; Hui LI; Hai-dong LI; Yin-long ZHANG

doi:10.31497/zrzyxb.20200508

Journals >Journal of Natural Resources >Volume 35 >Issue 5 >Page 1109 > Article

Journal of Natural Resources
Vol. 35, Issue 5, 1109 (2020)

Ecosystem health assessment method of eco-redline based on land use and landscape pattern in Nanjing

Shou-guang YAN^1、2, Hui LI¹, Hai-dong LI¹, and Yin-long ZHANG^2、*

Author Affiliations

¹Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing 210042, China

²College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China

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DOI: 10.31497/zrzyxb.20200508 Cite this Article

Shou-guang YAN, Hui LI, Hai-dong LI, Yin-long ZHANG. Ecosystem health assessment method of eco-redline based on land use and landscape pattern in Nanjing[J]. Journal of Natural Resources, 2020, 35(5): 1109 Copy Citation Text

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Fig. 1. Distribution of eco-redline in Nanjing

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Fig. 2. Ecosystem health index of eco-redline in Nanjing

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Fig. 3. Ecosystem health indexes of eco-redline in different administrative regions

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Fig. 4. Change trend of ecosystem health index in different types of eco-redline

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目标层	准则层	指标层	指标计算方法	权重
生态系统健康评价	活力	净初级生产力	采用CASA模型,计算公式为： $NPP (x, t) = APAR (x, t) \times ε (x, t)$	0.2344
	活力	生物丰度	生物丰度指数=A_bio×(0.35×林地+0.21×草地+0.28×水域湿地+0.11×耕地+0.04×建设用地+0.01×未利用地)/区域面积。其中,A_bio为生物丰度指数的归一化系数	0.1406
	组织结构	植被覆盖度	$F_{v} = \frac{NDVI - NDV I_{\min}}{NDV I_{\max} - NDV I_{\min}}$	0.0536
		景观多样性	$SHDI = - \overset{k}{\sum_{i = 1}} P_{i} \times \ln (P_{i})$	0.0354
		景观优势度	$D = H_{\max} + \overset{k}{\sum_{i = 1}} P_{i} \times \ln (P_{i})$	0.0091
		景观破碎度	$C = \frac{\sum n_{i}}{A}$	0.0241
	恢复力	生态弹性度	采用不同土地覆被/利用类型对生态恢复力的贡献和作用,分别赋以不同级别的生态弹性值,然后根据各类土地覆被类型,综合计算区域的生态系统恢复力^[18]	0.1458
	生态系统服务	生态系统服务价值	采用当量因子法,计算不同类型生态系统单位面积的生态系统服务价值,计算公式为： $ESV = \sum A_{i} \times V C_{i}$	0.1458
	人类胁迫	土地利用程度综合指数	$La = 100 \times \overset{n}{\sum_{i = 1}} A_{i} \times C_{i}$	0.1215
	人类胁迫	生态保护红线空间协调度	通过对生态保护红线保护需求和建设开发现状进行等级划分,建立互斥分类矩阵,计算生态保护红线空间的协调度	0.0868

Table 1. Ecosystem health evaluation index of eco-redline in Nanjing

生态系统健康等级	分级标准	健康状态
Ⅰ	≥ 60	健康
Ⅱ	[30~60)	亚健康
Ⅲ	<30	不健康

Table 2. Levels of ecosystem health index

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