Numerical simulation for the impact of deforestation on climate in china and its neighboring regions

Song, Yukuan; Longxun, Cheng; Dong, Ming

doi:10.1007/bf02666547

Cited by 4 publications

(1 citation statement)

References 6 publications

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“…The influence of land-cover (LC) changes on the hydrological cycling of tropical watersheds is a complex and interrelated process. LC changes can alter cloud cover (Polcher and Laval, 1994a;Lawton et al, 2001;van der Molen, 2002;Nair et al, 2003), precipitation (Shukla et al, 1990;Park, 1992: 97;Polcher, 1995;van der Molen, 2002), albedo, evapotranspiration (ET) (Mylne and Rowntree, 1992;Dirmeyer and Shukla, 1994;Polcher and Laval, 1994b;Yukuan et al, 1994;Makino, 1999), soil moisture (Polcher andLaval, 1994b, Nepstad et al, 1994), and the type and water use of vegetation, as well as stream-flow generation.…”

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confidence: 99%

Modelling the impact of recent land‐cover changes on the stream flows in northeastern Puerto Rico

Hall

Scatena

2007

Hydrological Processes

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Abstract:We investigated the influence of recent and future land-cover changes on stream flow of a watershed northeastern Puerto Rico using hydrological modeling and simulation analysis. Monthly and average annual stream flows were compared between an agricultural period (1973)(1974)(1975)(1976)(1977)(1978)(1979)(1980) and an urbanized/reforested period (1988)(1989)(1990)(1991)(1992)(1993)(1994)(1995) using the revised Generalized Watershed Loading Function model. Our validated results show that a smaller proportion of rainfall became stream flows in the urbanized/forested period compared with the agricultural period, apparently because of reforestation. Sensitivity analysis of the model showed that evapotranspiration, precipitation, and curve number were the most significant factors influencing stream flow. Simulations of projected land-cover scenarios indicate that annual stream flows would increase by 9Ð6% in a total urbanization scenario, decrease by 3Ð6% in a total reforestation scenario, and decrease by 1Ð1% if both reforestation and urbanization continue at their current rates to 2020. An imposed hurricane event that was similar in scale to the largest recent event on the three land-cover scenarios would increase the daily stream flow by 62Ð1%, 68Ð4% and 67Ð1% respectively. Owing to the environmental setting of eastern Puerto Rico, where sea breezes caused by temperature differences between land surface and the ocean dominate the local climate, we suggest that managing local land-cover changes can have important consequences for water management.

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Section: Introductionmentioning

confidence: 99%

Modelling the impact of recent land‐cover changes on the stream flows in northeastern Puerto Rico

Hall

Scatena

2007

Hydrological Processes

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Natural disasters and economic development drive forest dynamics and transition in China

Zhang

Song

Zhang

et al. 2017

Forest Policy and Economics

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：China has been implementing the world's most ambitious afforestation and forest conservation programs and undergoing rapid forest expansion since 1990s, thus, understanding the forest dynamics in China has global implications for sustainable forest management. Through analyzing forest area, biomass dynamics, and factors influencing deforestation and forest restoration, we found that the natural disasters and economic development drove forest dynamics and transition in China. The growth of the economy and population drove up demand for forest products, facilitating deforestation. The booming economy also boosted government's investment in forest restoration and conservation programs. Natural disasters damaged and frequently destroyed forests, but they also served as stimuli for the authorities to adopt remedy forestry policies and programs that ultimately led to forest increase. Nationwide, increasing peaks of annual afforestation were observed in the late 1950s, early 1980s, and early 2000s, and the newly increased area closed for forest restoration reached the peak in 1998. All these peaks were closely associated with peaks of natural disasters (i.e., floods, drought, and dust storm events). Based on the dynamics of forest area, biomass and forest consumption over the past 40 years, forest transition occurred during the late 1980s to the early 1990s, and it also strengthened the carbon (C) sink function of forests in China (with an increasing rate of 0.137 Pg C yr-1 during 1994-2008). Overall, our study highlighted the influences of natural disasters and economic development on the forestry policies and forest C dynamics in the newly industrialized country.

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et al. 2003

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Numerical simulation for the impact of deforestation on climate in china and its neighboring regions

Cited by 4 publications

References 6 publications

Modelling the impact of recent land‐cover changes on the stream flows in northeastern Puerto Rico

Modelling the impact of recent land‐cover changes on the stream flows in northeastern Puerto Rico

Natural disasters and economic development drive forest dynamics and transition in China

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