LCZO -- Streamflow / Discharge -- Bisley -- (1987-2013)

This is project presents data related to discharge measurements from the Bisley Watershed in the Luquillo Mountains.This is project presents data related to discharge measurements from the Bisley Watershed in the Luquillo Mountains.

This is project presents data related to discharge measurements from the Bisley Watershed in the Luquillo Mountains.
Long-term rainfall and discharge data from the Luquillo Experimental Forest (LEF) were analyzed to develop relationships between rainfall, stream-runoff, and elevation. These relationships were then used with a Geographic Information System (GIS) to determine spatially-averaged, mean annual hydrologic budgets for watersheds and forest types within the study area. Model estimates indicate that a total of 3864 mm/yy (444 hm3) of rainfall falls on the forest in an average year. The Tabonuco, Colorado, Palm and Dwarf Forest types receive an estimated annual rainfall of 3537, 4191, 4167, and 4849 mm/yy, respectively. Of the average annual rainfall input, 65% (2526 mm/yr) is converted to runoff and the remainding 35% (1338 mm.yr) is lost from the system by evapotranspiration and other abstractions. In comparison to other tropical forests, the LEF as a whole has more evapotranspiration than many tropical montane forests but less evapotranspiration than many lowland tropical forests.

Data a product of USDA Forest Service -IITF:

Grizelle González - Project Leader, Research Unit
USDA FS - International Institute of Tropical Forestry
[e-mail]

本项研究呈现了关于卢奎洛山脉比斯利流域的排放量测量数据。本研究分析了卢奎洛实验林（LEF）的长期降雨和排放量数据，以建立降雨、河流径流和海拔之间的关系。随后，利用地理信息系统（GIS）将这些关系应用于确定研究区域内各流域和森林类型的空间平均、年均水文预算。模型估算表明，在平均年份，森林上共有3864毫米/年（444立方千米）的降雨量。塔博努科、科罗拉多、棕榈和矮林类型的年降雨量分别估计为3537、4191、4167和4849毫米/年。在平均年降雨输入中，65%（2526毫米/年）转化为径流，剩余的35%（1338毫米/年）通过蒸散和其它吸收作用从系统中流失。与其它热带森林相比，作为整体的LEF具有比许多热带山地森林更多的蒸散量，但比许多低地热带森林的蒸散量要少。

数据由美国农业部林业服务局国际热带林业研究所提供：

格丽泽勒·冈萨雷斯 - 项目负责人，研究单位
美国农业部林业服务局 - 国际热带林业研究所
[e-mail]