Regional annual water yield from forest lands and its response to potential deforestation across the southeastern United States

Sun, Ge; McNulty, Steven G.; Lu, Jye‐Chyi; Amatya, Devendra M.; Liang, Y.; Kolka, Randall K.

doi:10.1016/j.jhydrol.2004.11.021

Cited by 151 publications

(137 citation statements)

References 14 publications

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“…In this study, the effects of clear-cutting the vegetation (to become bare land) on water yields have been simulated by a reduction of the ω para meter from original value of different vegetation types to 0.0, and the difference between the simulated and measured values indicated water yield's lowering effects of forest, grassland, or farmland on water yield [17]. The amount of water yield reduction was closely associated with the cover ratio of three vegetation types (Fig.…”

Section: Effects Of Vegetation On Water Yieldmentioning

confidence: 99%

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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Section: Effects Of Vegetation On Water Yieldmentioning

confidence: 99%

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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“…Using eddy flux tower measurements, Domec et al (2012) showed that transpiration accounted for 70 % of total ET in a mid-rotation managed pine forest. Similarly, Sun et al (2010) showed that transpiration and soil evaporation accounted for about 83 % of total ET. In forested watersheds dominated by closed canopies and thick litter layers, soil evaporation is likely to be minimal (e.g., Ford et al, 2007), though Domec et al (2012) report a value of 9 % of ET attributed to soil evaporation from a mid-rotation managed pine plantation.…”

Section: Introductionmentioning

confidence: 96%

“…Storm runoff varies widely, from none to over 70 % of rainfall (Epps et al, 2013), which is believed to be related to soil water and depression storage. In low-gradient forested watersheds, we anticipate an even greater coupling of transpirative and soil water dynamics in runoff generation processes (Amatya et al, 1996;Slattery et al, 2006;Sun et al, 2010;Amatya and Skaggs, 2011;Dai et al, 2011;Skaggs et al, 2011;Tian et al, 2012). Using isotope effects of transpiration and evaporation from a global data set, Jasechko et al (2013) demonstrated that transpiration is the major component of the total evapotranspiration (ET) process in the global water cycle.…”

Section: Introductionmentioning

confidence: 99%

“…Using isotope effects of transpiration and evaporation from a global data set, Jasechko et al (2013) demonstrated that transpiration is the major component of the total evapotranspiration (ET) process in the global water cycle. In lowgradient forested watersheds in the southeastern USA, Dai et al (2013) showed that ET accounted for about 76 % of precipitation loss from a coastal forested watershed while Sun et al (2010) suggested a range of 70-113 % from a managed pine plantation. Using sap-flux measurements from a small high-gradient watershed (mean slope 57 %) with a closed evergreen canopy and thick litter layer, Ford et al (2007) demonstrated that 56 and 60 % of incident precipitation for 2004 and 2005 could be accounted for by ET, respectively.…”

Section: Introductionmentioning

confidence: 99%

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Hurricane impacts on a pair of coastal forested watersheds: implications of selective hurricane damage to forest structure and streamflow dynamics

Jayakaran

Williams

Ssegane

et al. 2014

Hydrol. Earth Syst. Sci.

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Abstract. Hurricanes are infrequent but influential disruptors of ecosystem processes in the southeastern Atlantic and Gulf coasts. Every southeastern forested wetland has the potential to be struck by a tropical cyclone. We examined the impact of Hurricane Hugo on two paired coastal South Carolina watersheds in terms of streamflow and vegetation dynamics, both before and after the hurricane's passage in 1989. The study objectives were to quantify the magnitude and timing of changes including a reversal in relative streamflow difference between two paired watersheds, and to examine the selective impacts of a hurricane on the vegetative composition of the forest. We related these impacts to their potential contribution to change watershed hydrology through altered evapotranspiration processes. Using over 30 years of monthly rainfall and streamflow data we showed that there was a significant transformation in the hydrologic character of the two watersheds -a transformation that occurred soon after the hurricane's passage. We linked the change in the rainfall-runoff relationship to a catastrophic change in forest vegetation due to selective hurricane damage. While both watersheds were located in the path of the hurricane, extant forest structure varied between the two watersheds as a function of experimental forest management techniques on the treatment watershed. We showed that the primary damage was to older pines, and to some extent larger hardwood trees. We believe that lowered vegetative water use impacted both watersheds with increased outflows on both watersheds due to loss of trees following hurricane impact. However, one watershed was able to recover to pre hurricane levels of evapotranspiration at a quicker rate due to the greater abundance of pine seedlings and saplings in that watershed.

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“…Zhang′s model represents the role of plant in regulating their available water resources by appropriately weighting the average of the green and blue water fluxes, adjusted for rainfall. It has been widely used to evaluate the annual water yield from forested land and its response to potential deforestation around the world (Sun et al, 2005;Zhang et al, 2008). Remote sensing provides multispectral vegetation indices (VIs) to track plant growth and estimate the basal crop coefficient and plant available moisture index in these models.…”

Section: Water Flux Related Ecosystem Servicesmentioning

confidence: 99%

Remote sensing of ecosystem services: An opportunity for spatially explicit assessment

Feng

Yang

et al. 2010

Chin. Geogr. Sci.

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Ecosystem service is an emerging concept that grows to be a hot research area in ecology. Spatially explicit ecosystem service values are important for ecosystem service management. However, it is difficult to quantify ecosystem services. Remote sensing provides images covering Earth surface, which by nature are spatially explicit. Thus, remote sensing can be useful for quantitative assessment of ecosystem services. This paper reviews spatially explicit ecosystem service studies conducted in ecology and remote sensing in order to find out how remote sensing can be used for ecosystem service assessment. Several important areas considered include land cover, biodiversity, and carbon, water and soil related ecosystem services. We found that remote sensing can be used for ecosystem service assessment in three different ways: direct monitoring, indirect monitoring, and combined use with ecosystem models. Some plant and water related ecosystem services can be directly monitored by remote sensing. Most commonly, remote sensing can provide surrogate information on plant and soil characteristics in an ecosystem. For ecosystem process related ecosystem services, remote sensing can help measure spatially explicit parameters. We conclude that acquiring good in-situ measurements and selecting appropriate remote sensor data in terms of resolution are critical for accurate assessment of ecosystem services.

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Regional annual water yield from forest lands and its response to potential deforestation across the southeastern United States

Cited by 151 publications

References 14 publications

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

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

Hurricane impacts on a pair of coastal forested watersheds: implications of selective hurricane damage to forest structure and streamflow dynamics

Remote sensing of ecosystem services: An opportunity for spatially explicit assessment

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