Modeling canopy rainfall interception of a replanted<i>Robinia pseudoacacia</i>forest in the Loess Plateau

Yanping, 王艳萍 Wang; Li, 王力 Wang; Sanping, 卫三平 Wei

doi:10.5846/stxb201203190374

Cited by 6 publications

(2 citation statements)

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“…The response time of soil moisture to precipitation decreased with increasing rainfall intensity, and the increases in soil moisture were larger and longer lasting (Figures 4-7). Some studies have reported that the loss of precipitation by interception may reach 40% [38,39], and the loss of precipitation by interception under R. pseudoacacia may represent 11.56% of the total precipitation [40]. The loss of precipitation by interception under P. tabulaeformis may represent 29.61% of the total precipitation simulated by the Gash model [41], and the loss of precipitation by interception by A. ordosica may represent 26.8% of the total precipitation [42].…”

Section: Responses Of Soil Moisture To Different Rainfall Intensitiesmentioning

confidence: 99%

Response of Soil Moisture to Single-Rainfall Events under Three Vegetation Types in the Gully Region of the Loess Plateau

Hou

Wei³

et al. 2018

Sustainability

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Precipitation is the main source of soil moisture recharge in the gully region of the Loess Plateau, and soil moisture is the main and most important water resource for vegetation activities in semiarid regions. To identify the contributions to soil moisture replenishment from rainfall of different intensities, this study conducted a soil moisture monitoring experiment involving continuous measurements at 30-min intervals in areas of Robinia pseudoacacia artificial forestland, Pinus tabulaeformis artificial forestland, and grassland from 1 March to 31 November 2017. The results indicated that there was a positive relationship between the infiltration coefficient and precipitation until the relationship obtained a stable value. When the precipitation was greater than 30 mm, soil moisture was replenished up to the 150 cm soil layer in grassland, and when the precipitation was greater than 40 mm, soil moisture was replenished up to the 150 cm soil layer in P. tabulaeformis artificial forestland. However, only precipitation greater than 50 mm replenished the soil moisture at the 150 cm soil layer in R. pseudoacacia artificial forestland. These three vegetation communities play important roles in soil and water conservation during ecological restoration. The results of this study can guide vegetation configurations in vegetation recovery and reconstruction efforts in the gully region of the Loess Plateau.

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Section: Responses Of Soil Moisture To Different Rainfall Intensitiesmentioning

confidence: 99%

Response of Soil Moisture to Single-Rainfall Events under Three Vegetation Types in the Gully Region of the Loess Plateau

Hou

Wei³

et al. 2018

Sustainability

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“…Canopy storage capacity (S) is one parameter in the revised Gash model, and is also the basis for accurate model estimation of canopy interception [50,51]. Depending on how it is calculated and the characteristics of the three rainfall patterns, canopy storage capacity may vary, so this study did not calculate the overall canopy storage capacity of a P. tabulaeformis plantation, and instead carried out separate calculations.…”

Section: Parameters Of Revised Gash Modelmentioning

confidence: 99%

Canopy Interception of Different Rainfall Patterns in the Rocky Mountain Areas of Northern China: An Application of the Revised Gash Model

Qian

Shi

Zhao

et al. 2022

Forests

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Canopy interception is an important part of forest ecosystem hydrological processes. It is the first stage of water distribution when rainfall reaches the canopy and has an important impact on nutrient inputs and water exchange. Pinus tabulaeformis is a main tree species in the rocky mountain areas of Northern China, and it is also a primary species for artificial afforestation. In previous studies of canopy interception, applications of the revised Gash model did not take rainfall characteristics into account. Therefore, in this study, rainfall patterns were divided according to the local rainfall characteristics in the rocky mountainous areas of Northern China. Rainfall was divided into three patterns. Rain pattern A was the main rainfall type. Rainfall patterns B and C were two types of rainstorms. Next, the revised Gash model was used to simulate Pinus tabulaeformis plantations under different rainfall patterns. The results showed that the canopy interception rate of Pinus tabulaeformis plantations in this area ranged from 14.7% to 17.9%. The revised Gash model can be used to simulate Pinus tabulaeformis plantations in the rocky mountainous areas of Northern China, with good simulation results for more than 80% of the conventional rainfall patterns. Furthermore, the canopy interception effect of simulated cumulative rainfall events was better than the individual rainfall event. The simulation effect for special rainfall patterns was not good, so it is necessary to improve the model parameters or collect more rainfall samples. These results can be used to explore the applicability of the revised Gash model in Pinus tabulaeformis plantations in the rocky mountain areas of Northern China. They also demonstrate different applicability of the model under different rainfall characteristics.

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Canopy interception of apple orchards should not be ignored when assessing evapotranspiration partitioning on the Loess Plateau in China

Wang

2018

Hydrological Processes

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Canopy interception is one of the most important processes in an ecosystem, but it is still neglected when assessing evapotranspiration (ET) partitioning in apple orchards on the Loess Plateau in China. To explore the importance of canopy interception, we monitored two neighbouring apple orchards on the Loess Plateau in China, one 8‐year‐old and the other 18‐years old at the start of the study, from May to September for four consecutive years (2013–2016). We measured parameters of canopy interception (I) including precipitation, throughfall, stemflow, leaf area index, transpiration (T), and soil evaporation (S) to quantify ET. The importance of canopy interception was then assessed by comparing the relationship between water supply (precipitation) and water demand (ET), calculated with and without considering canopy interception (T + S and T + S + I, respectively). Tree age clearly influenced canopy interception, as estimates of annual canopy interception during the study years in the younger and older orchards amounted to 22.2–29.4 mm and 26.8–39.9 mm, respectively. Daily incident rainfall and rainfall intensity in both orchards were significantly positively correlated with daily canopy interception in each year. The relationship between annual precipitation and annual ET (calculated with and without consideration of canopy interception) in the younger orchard differed during 2015 and 2016. Ignoring canopy interception would result in underestimation of annual ET in both apple orchards and hence incorrect evaluation of the relationship between water supply and water demand, particularly for the younger orchard during 2015 and 2016. Thus, for a complete understanding of water consumption in apple orchards in this and similar regions, canopy interception should not be ignored when assessing ET partitioning.

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Modeling canopy rainfall interception of a replantedRobinia pseudoacaciaforest in the Loess Plateau

Cited by 6 publications

References 0 publications

Response of Soil Moisture to Single-Rainfall Events under Three Vegetation Types in the Gully Region of the Loess Plateau

Response of Soil Moisture to Single-Rainfall Events under Three Vegetation Types in the Gully Region of the Loess Plateau

Canopy Interception of Different Rainfall Patterns in the Rocky Mountain Areas of Northern China: An Application of the Revised Gash Model

Canopy interception of apple orchards should not be ignored when assessing evapotranspiration partitioning on the Loess Plateau in China

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