public List <double> ComEcoIndexCal()
{
#region 基础生态环境状况评价指标计算系数
double[] ComSJZLI = new double[] { 511.2642131067, 0.35, 0.21, 0.28, 0.11, 0.04, 0.01 };
double[] ComSYHYI = new double[] { 1, 1, 1, 1 };
#endregion
if (comIndexName.Count <= 0)
{
return(comEcoIndexResult);
}
comIndexFla = new IndexFormula(zoneClassArea);
for (int i = 0; i < comIndexName.Count; i++)
{
#region 根据所选指标调用公式
switch (comIndexName[i].ToString())
{
case "生境质量指数":
comEcoIndexResult.Add(comIndexFla.SJZLIndex(ComSJZLI));
break;
case "林地覆盖率":
comEcoIndexResult.Add(comIndexFla.ForestAreaRatio(1));
break;
case "草地覆盖率":
comEcoIndexResult.Add(comIndexFla.GrassAreaRatio(1));
break;
case "耕地面积比":
comEcoIndexResult.Add(comIndexFla.FarmAreaRatio(1));
break;
case "不透水地表面积比":
comEcoIndexResult.Add(comIndexFla.HardenSurfaceRatio(1));
break;
case "耕地和建设用地面积比":
comEcoIndexResult.Add(comIndexFla.FarmConstructionAreaRatio(1));
break;
case "水域湿地面积比":
comEcoIndexResult.Add(comIndexFla.WaterAreaRatio(1));
break;
case "荒漠与自然裸露地表面积比":
comEcoIndexResult.Add(comIndexFla.DesertAreaRatio(1));
break;
case "水源涵养指数":
comEcoIndexResult.Add(comIndexFla.SYHYIndex(ComSYHYI));
break;
case "受保护区域面积比":
comEcoIndexResult.Add(comIndexFla.ProtectAreaRatio());
break;
case "行、蓄、滞洪区域面积比":
comEcoIndexResult.Add(comIndexFla.FloodAreaRatio());
break;
case "固沙草地、护坡灌草面积比":
comEcoIndexResult.Add(comIndexFla.SandFixationAreaRatio());
break;
case "人均林地":
double pcf = 0;
if (PatchEcosystem.population != 0)
{
pcf = zoneClassArea.ForestArea / PatchEcosystem.population;
}
comEcoIndexResult.Add(pcf);
break;
case "人均耕地":
double pca = 0;
if (PatchEcosystem.population != 0)
{
pca = zoneClassArea.FarmArea / PatchEcosystem.population;
}
comEcoIndexResult.Add(pca);
break;
case "人均休闲用地":
double pcl = 0;
if (PatchEcosystem.population != 0)
{
pcl = zoneClassArea.ProtectArea / PatchEcosystem.population;
}
comEcoIndexResult.Add(pcl);
break;
default:
break;
}
#endregion
}
return(comEcoIndexResult);
}
