Lory Willard
University of Florida
| Subject Areas: | Hydrologic modeling,water management,sustainable agricultural intensification |
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ABSTRACT:
Sub-Saharan Africa has experienced both rapid population growth and loss of arable land due to soil degradation, leading to the expansion of agriculture into savanna ecosystems. Sustainable agricultural intensification has been promoted to reduce expansion into native ecosystems while minimizing impacts of increased agricultural inputs on existing farmland. However, there are few high-resolution spatiotemporal datasets available to evaluate existing agroecosystem conditions and proposed management scenarios at the upstream edge of natural savanna ecosystems. The dataset presented here contains daily and sub-daily streamflow and precipitation data, soil physicochemical properties, and farm management data collected from the Nanyuki River watershed in the Mount Kenya region of the Upper Ewaso Ng’iro basin (Laikipia, Meru, and Nyeri counties) from 2021-2024. Derived products include stream channels, subwatersheds and their attributes, and 10 m land cover and curve number layers that distinguish large farms from smallholder fields. The datasets provide comprehensive information for calibrating and evaluating hydrologic, ecosystem, and agricultural models at daily and sub-daily time steps.
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Created: Oct. 27, 2026, 4:53 a.m.
Authors: Willard, Lory · Muñoz-Carpena, Rafael · Taïsha Venort · John Gitonga · Gabriel Maltais-Landry · Caylor, Kelly · Cheryl Palm
ABSTRACT:
Sub-Saharan Africa has experienced both rapid population growth and loss of arable land due to soil degradation, leading to the expansion of agriculture into savanna ecosystems. Sustainable agricultural intensification has been promoted to reduce expansion into native ecosystems while minimizing impacts of increased agricultural inputs on existing farmland. However, there are few high-resolution spatiotemporal datasets available to evaluate existing agroecosystem conditions and proposed management scenarios at the upstream edge of natural savanna ecosystems. The dataset presented here contains daily and sub-daily streamflow and precipitation data, soil physicochemical properties, and farm management data collected from the Nanyuki River watershed in the Mount Kenya region of the Upper Ewaso Ng’iro basin (Laikipia, Meru, and Nyeri counties) from 2021-2024. Derived products include stream channels, subwatersheds and their attributes, and 10 m land cover and curve number layers that distinguish large farms from smallholder fields. The datasets provide comprehensive information for calibrating and evaluating hydrologic, ecosystem, and agricultural models at daily and sub-daily time steps.