南四湖湖泊湿地生态环境预警研究

高家骥, 李雪铭, 张峰, 杨俊, 席建超

Early Warning of Wetland Eco-environmental in Nansihu Lake

Jiaji Gao, Xueming Li, Feng Zhang, Jun Yang, Jianchao Xi

表1 南四湖生态环境预警指标量化标准、警度和警灯

Table 1 The alert limits standard, alert degrees and alert lights of Nansihu Lake

指标 定级标准 警度 无警 轻警 中警 重警 巨警 警灯 绿灯 浅蓝灯 蓝灯 黄灯 红灯 斑块丰富度 [8, 10] [6, 8] [4, 6] [2, 4] [0, 2] 平均斑块面积 [600, 800] [500, 600] [350, 500] [200, 350] [0, 200] 归一化植被指数 [4, 8] [3, 4] [2, 3] [1, 2] [0, 1] 动物种类数 [1000, 1250] [750, 1000] [500, 750] [250, 500] [0, 250] 植物种类数 [750, 1000] [500, 750] [250, 500] [100, 250] [0,100] 弹性度指数 [0.8, 1.0] [0.6, 0.8] [0.4, 0.6] [0.2, 0.4] [0, 0.2] 湿地自然灾害致灾面积 [0, 10] [10, 30] [30, 50] [50, 70] [70, 100] 景观多样性指数 [0.8, 1] [0.6, 0.8] [0.4, 0.6] [0.2, 0.4] [0, 0.2] 富营养化指数 [0, 30] [30, 50] [50, 60] [60, 70] [70, 100] 人类干扰指数 [0, 0.2] [0.2, 0.4] [0.4, 0.6] [0.6, 0.8] [0.8, 1.0] GDP年增长率 [10, 12.5] [8.5, 10] [7, 8.5] [5, 7] [3, 7] 污水处理能力 [90, 100] [80, 90] [50, 80] [20, 50] [0, 20] 化肥施用强度 [0, 200] [200, 300] [300, 400] [400,600] [600, 800] 农药使用强度 [0, 4] [4, 8] [8, 12] [12, 16] [16, 20] 万元GDP COD排放强度 [0, 1.5] [1.5, 2.25] [2.25, 3.0] [3.0, 5.0] [5.0, 7.0]