Journal of Natural Resources, Volume. 35, Issue 4, 814(2020)
Optimization of ecological security pattern in the source area of Fenhe River Basin based on ecosystem services
Figures & Tables(10)
Fig. 3. Identification of cold and hot areas of ecosystem services in the source area of Fenhe River Basin
Fig. 4. Construction of cumulative resistance surface in the study area
Fig. 6. Comprehensive planning of ecological security patterns in the study area
Table 1. Input files for the water yield module
View tableView in ArticleTable 1. Input files for the water yield module
代码 土地利用类型 根系深度/mm 流速系数 蒸散系数 1 耕地 500 1100 0.45 2 灌木林地 600 600 0.4 3 园地 550 800 0.7 4 湿地 1 2012 1.12 5 建设用地 1 2012 0.3 6 裸地 1 2012 0.5 7 其他草地 200 1500 0.65 8 其他林地 1300 380 0.8 9 天然牧草地 800 400 0.9 10 有林地 1800 360 1
Table 2. Threat factor properties
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威胁因子 最大影响距离/km 权重 衰减方式 农田 1 0.6 线性 道路 5 0.5 线性 城镇 7 0.8 指数 村庄 3 0.4 指数 独立工矿 8 0.6 线性 综合生态风险源 4 1 指数
Table 3. Resistance factors and resistance coefficient in the study area
View tableView in ArticleTable 3. Resistance factors and resistance coefficient in the study area
阻力因子 阻力因子/模式一阻力系数/模式二阻力系数 权重 土地利用类型 林地/1/1 自然湿地/30/1 河流水面/80/1 人工湿地/50/10 园地/5/5 草地/5/5 0.5 耕地/10/10 其他用地/70/70 交通运输用地/80/80 建设用地/100/100 高程/m 1000~1300/10 1301~1600/20 1601~1900/40 1901~2200/60 2201~2500/80 2501~2800/100 0.2 坡度/(°) 0~2/10 2~6/30 6~15/50 15~25/70 >25/100 0.3
Table 4. Analysis of landscape components and structure index of ecological network
View tableView in ArticleTable 4. Analysis of landscape components and structure index of ecological network
指标 模式一生态网络 模式二生态网络 综合生态网络 廊道数 33 42 43 廊道总长度 363.81 556.42 565.957 α 指数0.455 0.727 0.758 β 指数1.737 2.211 2.263 γ 指数0.647 0.778 0.843 成本比 0.909 0.824 0.924
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Xue-yi SHI, Yang-jun FU. Optimization of ecological security pattern in the source area of Fenhe River Basin based on ecosystem services[J]. Journal of Natural Resources, 2020, 35(4): 814
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Received: Apr. 18, 2019
Accepted: --
Published Online: Oct. 17, 2020
The Author Email: SHI Xue-yi (shixueyi60@163.com)
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