Zhi Wang
California State University, Fresno
GeologyInfiltration (hydrology)Soil waterHydrologyFlow (psychology)
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Publications 34
#1Xi LiangH-Index: 6
#2Derong SuH-Index: 2
Last. Xin QiaoH-Index: 1
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The development of a (layer of) thatch in turfgrass causes important changes to near-surface eco-hydrological processes. In this study, we investigated the effects of turfgrass thatch, specifically Kentucky bluegrass (Poa pratensis L.) and red fescue (Festuca rubra L.) on water infiltration, surface runoff, and soil moisture evaporation. The thatches were collected from the field for controlled experiments using packed soil columns under various rainfall conditions. Results indicated that the pr...
2 CitationsSource
#1Zili He (California State University, Fresno)H-Index: 1
#2Zhi Wang (California State University, Fresno)H-Index: 18
Last. Xiaoyi Ma (NWAFU: Northwest A&F University)H-Index: 2
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To examine the hydrological system sensitivity of the southern Sierra Nevada Mountains of California to climate change scenarios (CCS), five headwater basins in the snow-dominated Upper San Joaquin River Watershed (USJRW) were selected for hydrologic simulations using the Hydrological Simulation Program-Fortran (HSPF) model. A pre-specified set of CCS as projected by the Intergovernmental Panel on Climate Change (IPCC) were adopted as inputs for the hydrologic analysis. These scenarios include t...
9 CitationsSource
#1William A. Jury (UCR: University of California, Riverside)H-Index: 46
#2Zhi Wang (UCR: University of California, Riverside)H-Index: 18
Despite a great deal of research, many unsolved problems remain in vadose zone hydrology. Because of the difficulties in sampling spatially variable soil and in monitoring at great depths, the effect of heterogeneities on flow and transport is poorly understood. Observations from the few comprehensive field studies that have been conducted suggest that preferential flow, or rapid flow through a small part of the soil volume, is present under a variety of conditions and can be a significant or ev...
2 CitationsSource
#1Yu Liu (CAS: Chinese Academy of Sciences)H-Index: 4
#2Bojie Fu (CAS: Chinese Academy of Sciences)H-Index: 62
Last. Guangyao Gao (CAS: Chinese Academy of Sciences)H-Index: 18
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Abstract Recent changes in hydrological processes and soil erosion in the Loess Plateau, China, are immediate responses to cropland abandonment for revegetation, which lead to a long-term decrease in runoff generation and soil erosion. However, detailed hydrological responses and soil erosion changes have not been clearly evaluated. In this study, two issues were focused on the plot scale. The first issue relates to changes in vegetation cover and soil properties during the early stages of reveg...
101 CitationsSource
#1T. T. Jin (CAS: Chinese Academy of Sciences)H-Index: 1
#2Bojie Fu (CAS: Chinese Academy of Sciences)H-Index: 62
Last. Zhi Wang (California State University, Fresno)H-Index: 18
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Abstract. Hydrologic viability, in terms of moisture availability, is fundamental to ecosystem sustainability in arid and semi-arid regions. In this study, we examine the spatial distribution and after-planting variations of soil moisture content (SMC) in black locust tree (Robinia pseudoacacia L.) plantings in the Loess Plateau of China at a regional scale. Thirty sites (5 to 45 yr old) were selected, spanning an area of 300 km by 190 km in the northern region of the Shaanxi Province. The SMC w...
53 CitationsSource
#1Xiuhua Liu (CAS: Chinese Academy of Sciences)H-Index: 1
#2Baolin HeH-Index: 1
Last. Zhi Wang (Chang'an University)H-Index: 18
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The combination of ecological fragility and agricultural activity in the loess hilly–gully regions of western China has received broad environmental concerns. In this region, rainfall and soil moisture can fatally influence crop production under dry land farming. In this study, field experiments were conducted, from March 2001 to September 2005, to demonstrate the variation of soil moisture and fertilizer contents at different depths in slope and terraced lands, and to evaluate the ecological im...
26 CitationsSource
#1Xi Liang (BFU: Beijing Forestry University)H-Index: 6
#2Derong Su (BFU: Beijing Forestry University)H-Index: 2
Last. Zhi Wang (CSU: California State University)H-Index: 18
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Summary Plant leaf can absorb water when the leaf is in contact with water. This happens when the rainfall is intercepted by plant leaves, where the intercepted part of rain remains on the leaf surface. When the intercepted water is either absorbed or subsequently evaporated into the atmosphere, the plant leaves can dissipate water through the desorption process until the plant is dry or rewatered. In this paper, two symptomatic models in the form of exponential functions for leaf water absorpti...
12 CitationsSource
Last. Zhi WangH-Index: 18
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#1Song Bae Kim (SNU: Seoul National University)H-Index: 11
#2Han Sang On (KU: Korea University)H-Index: 1
Last. Zhi Wang (California State University, Fresno)H-Index: 18
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This study was conducted to determine the significance of bromacil transport as a function of water and carbon content in soils and to explore the implications of neglecting sorption when making assessments of travel time of bromacil through the vadose zone. Equilibrium batch sorption tests were performed for loamy sand and sandy soil added with four different levels of powdered activated carbon (PAC) content (0, 0.01, 0.05, and 0.1%). Column experiments were also conducted at various water and ...
5 CitationsSource
#1Mathieu Javaux (UCL: Université catholique de Louvain)H-Index: 31
#2Zhi Wang (California State University, Fresno)H-Index: 18
Last. Marnik Vanclooster (UCL: Université catholique de Louvain)H-Index: 41
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[1] In the paper ‘‘Prediction of fingering in porous media’’ by Zhi Wang, Jan Feyen, and David E. Elrick (Water Resources Research 34(9), 2183–2190, 1998), the authors developed 24 specific criteria for predicting unstable flow in porous media, based on the Chuoke equation [Chuoke et al., 1959]. However, some of the results were inconsistent with predictions by others. For instance, de Rooij [2000] noted that the Wang criteria showed unstable flow for overly rapid upward flow in contrary to Phil...
3 CitationsSource