厄瓜多尔地表水资源评价研究

为进一步查清厄瓜多尔境内地表水资源的时空分布特性,为其水资源综合利用提供基础数据,选择该国流量系列相对完整、质量较好、空间分布具有代表性且控制条件较好的水文站作为计算地表水资源量的主要依据站,绘制了地表径流量等值线图、计算了区域地表水资源量、分析了地表水资源量时空分布。研究结果表明:厄瓜多尔全国多年平均地表水资源量为3 617.47亿m~3,折合年径流深1 457 mm。全国9个DH中,多年平均径流量最大的为DH Napo,年径流量为1 321.54亿m~3,占全国的36.5%,径流量最小的为DH Manabi,年径流量为62.70亿m~3,仅占全国的1.7%。

Study and assessment on surface water resources in Ecuador

The purpose of surface water resources assessment is to reflect its temporal and spatial distribution, and provide basic data for water resources comprehensive utilization. In this study, the hydrologic stations with relatively complete discharge series, good quality, representative spatial distribution and preferable control conditions were selected as the main basis stations for calculating the surface water resources. The contour maps of surface runoff were drawn, the regional surface water resources were calculated, and the spatial and temporal distribution of surface water resources was analyzed. The results show that the average annual surface water resources in Ecuador is 361 747 hm3, equivalent to annual runoff depth of 1 457 mm. Among the 9 basins, the maximum average annual runoff is Napo Basin with annual runoff of 132 154 hm3, accounting for 36.5% of the whole country, the minimal runoff is Manabi Basin with the annual runoff of 6 270 hm3, only 1.7% of the whole country.