Evaluating the bio-hydrological impact of a cloud forest in Central America using a semi-distributed water balance model

Caballero, Luis A.; Easton, Zachary M.; Richards, Brian K.; Steenhuis, Tammo S.

doi:10.2478/jhh-2013-0003

Cited by 32 publications

(27 citation statements)

References 38 publications

(43 reference statements)

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“…The linear relationship between discharge either from interflow or surface flow after a certain threshold in rainfall is exceeded is not uncommon as shown by Chandler and Walter (1998) for Leyte in the Philippines; and by Caballero et al (2013) for Honduras, Czech Republic and by Wickel et al (2008 for eastern Amazonia in Brazil). The linear relationship could also explain the closed lake level changes in Haiti and the Dominican Republic.…”

Section: Hydrological Similarity Of Watershedsmentioning

confidence: 99%

Improving efficacy of landscape interventions in the (sub) humid Ethiopian highlands by improved understanding of runoff processes

et al. 2015

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Despite millions of dollars invested in soil and water conservation (SWC) practices in the (sub) humid Ethiopian highlands and billions of hours of food-for-work farm labor, sediment concentration in rivers is increasing. This paper reports on the research to reverse the current trend. Based on the understanding of the hydrology of highlands, we provide evidence on sources of surface runoff and sediment and on mechanisms that govern the erosion processes and approaches and how they affect SWC practices. We suggest that priority in landscape interventions should be given to re-vegetation of the degraded areas so as to reduce the sediment concentration contributions originating from these areas. Additionally, efforts should be directed to gully rehabilitation in the saturated bottom landscape that may consist of vegetating shallow gullies and stabilizing head cuts of deeper gullies. Finally, rehabilitation efforts should be directed to increase the rain water infiltration in the upland areas through the hardpan layer by connecting the land surface to the original deep flow paths that exist below about 60 cm. It will reduce the direct runoff during the rainy season and increase baseflow during the dry season.

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Section: Hydrological Similarity Of Watershedsmentioning

confidence: 99%

Improving efficacy of landscape interventions in the (sub) humid Ethiopian highlands by improved understanding of runoff processes

et al. 2015

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“…Steenhuis et al (2009) developed and validated a Parameter Efficient distributed (PED) model for runoff and erosion model at different watershed scales in the upper Blue Nile. It has been applied in Ethiopia (Tilahun et al 2013) and other countries with a monsoonal climate (Caballero et al 2013). In the PED model various portion of watershed become hydrologically active when moisture content treshold is exceeded.…”

Section: Methodsmentioning

confidence: 99%

Biohydrology of low flows in the humid Ethiopian highlands: The Gilgel Abay catchment

et al. 2014

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Abstract:In Ethiopia the population is rapidly expanding. As a consequence the landscape is rapidly changing. Eucalyptus plantations are increasing and irrigation projects are implemented. The hydrological effects of the changing landscape on river (low) flows have not been well documented and therefore the amount of water available in the future might be over optimistic. The objective of this paper is to establish how low flows have been impacted by new developments in irrigation and by landscape change. For this paper, we choose the Gilgel Abay in the headwaters of the upper Blue Nile basin, since it has both good quality discharge data and it is located in the Tana Beles growth corridor. Numerical and statistical means were used to analyze the 25 years of available low flow data. We found a statistically significant decreasing trend (P < 0.00001) of low flow in the Gilgel Abay. From 1980's to 1990's the low flow decreased by 25% and from 1990's to 2000's the low flow was reduced by 46%. The deterministic analysis with the Parameter Efficient Distributed (PED) model supported the statistical findings and indicated that in the middle of the nineteen nineties, after irrigation projects and eucalyptus plantations increased greatly, the low flows decreased more rapidly.

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“…Our understanding of the forest impact on annual water yield is well advanced and there are robust methods available for predicting the impact of forest change on the mean annual water balance [4]. Methods have also been established that allow the prediction of water yield changes in response to forest change at the annual time scale [5][6].…”

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Estimating the Effect of Precipitation and Vegetation on Water Yield in Northern China

Yuan¹,

Shi²,

Zhao³

2018

Pol. J. Environ. Stud.

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The effect of vegetation on water yield is a popular and important issue in ecohydrological studies. In response to the widely observed degradation of formerly forested land and the rising demands for paper pulp, industrial wood, and wood fuel, the need for large-scale reforestation programs has been expressed repeatedly. To address the increasing levels of soil erosion and desertifi cation, China has implemented many large-scale reforestation programs in recent decades [1]. While creating many economic and ecological benefi ts, reforestation could also potentially reduce water capacity [2][3]. Because of this, correct understanding of the forest-water relationship is particularly important.There have been many infl uential studies made in understanding forest and water relationships during the past century around the globe. Our understanding of the forest impact on annual water yield is well advanced and there are robust methods available for predicting the impact of forest change on the mean annual water balance [4]. Methods have also been established that allow the prediction of water yield changes in response to forest change at the annual time scale [5][6].Although researchers concurred with that forests decrease water yield, the decreasing extent is different. Pol. J. Environ. Stud. Vol. 27, No. 1 (2018), 305-311 AbstractThis study attempts to analyze how precipitation and vegetation affect water yield in Haihe watershed. Based on the annual runoff and meteorological data, the water balance equation and the calibrated Zhang model were used to simulate the effects of precipitation and vegetation on water yield. The simulated results showed that the effect of precipitation on water yield was linear in mountainous area of Haihe watershed, and a 1 mm change (increase or decrease) in precipitation will cause a 0.51 mm change in water yield; under the mean annual precipitation of 534 mm, the effects of decreasing water yield by per unit cover ratio for forest, grassland, and farmland were 1.26, 0.47, and 0.69 mm, respectively. The decreased water yields for forest, grassland, and farmland were associated with aridity indexes by negative power functions, and indicate that the effect of vegetation on water yield was smaller in drier areas. For three vegetation types the effects of vegetation on water yield were similar for crops and grass, and were much larger for forest.

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Evaluating the bio-hydrological impact of a cloud forest in Central America using a semi-distributed water balance model

Cited by 32 publications

References 38 publications

Improving efficacy of landscape interventions in the (sub) humid Ethiopian highlands by improved understanding of runoff processes

Improving efficacy of landscape interventions in the (sub) humid Ethiopian highlands by improved understanding of runoff processes

Biohydrology of low flows in the humid Ethiopian highlands: The Gilgel Abay catchment

Estimating the Effect of Precipitation and Vegetation on Water Yield in Northern China

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