Interception, throughfall and stemflow partition in drylands: Global synthesis and meta-analysis

Magliano, Patricio N.; Whitworth‐Hulse, Juan I.; Baldi, Germán

doi:10.1016/j.jhydrol.2018.10.042

Cited by 91 publications

(103 citation statements)

References 65 publications

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“…The low stemflow in this study may due to climate and also the accuracy of the experimental device of the stemflow in this study. Previous research confirmed that stemflow was the most variable part of the canopy partitioning (coefficient of variation = 107.8%) [17]. Furthermore, it is known that shrubs generate more stemflow than trees, which has been demonstrated in our results comparing with the results of stemflow in shrub species [45,46].…”

Section: Age Dependence Of Rainfall Partitioningsupporting

confidence: 84%

Rainfall Partitioning in Chinese Pine (Pinus tabuliformis Carr.) Stands at Three Different Ages

LingLing

Han

Cheng

et al. 2020

Forests

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Chinese pine (Pinus tabuliformis Carr.) is the main forest species in northern China, with the potential to dramatically affect biotic and abiotic aspects of ecosystems in this region. To discover the rainfall partitioning patterns of different growth periods of Chinese pine forest, we studied the throughfall (Tf), stemflow (Sf) and canopy interception (I) in three stand ages (40-, 50-, 60-year-old) in Liaoheyuan Natural Reserve of Hebei Province during the growing seasons of 2013 and 2014, and analyzed effect of rainfall amount, rainfall intensity, and canopy structure on rainfall partitioning in Chinese pine forest. The results showed that throughfall decreased with the stand age, accounting for 78.8%, 74.1% and 66.7% of gross rainfall in 40-, 50- and 60-year-old Chinese pine forests, respectively. Canopy interception, on the other hand, increased with the stand age (20.4%, 24.8%, and 32.8%, respectively), while the pattern in stemflow was less clear (0.8%, 1.1%, and 0.6%, respectively). As rainfall intensity increased, the Tf and Sf increased and I declined. Additionally, our results showed that leaf area index (LAI) and the diameter at breast height (DBH) increased with age in Chinese pine stands, probably explaining the similar increase in canopy interception (I). On the other hand, the mean leaf angle, openness, gap fraction all decreased with the stand age. Stepwise regression analysis showed that the rainfall amount and LAI were the major determinants influencing the rainfall partition. Our study highlights the importance of stand age in shaping different forest canopy structures, and shows how age-related factors influence canopy rainfall partitioning. This study also significantly adds to our understanding the mechanisms of the hydrological cycle in coniferous forest ecosystems in northern China.

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Section: Age Dependence Of Rainfall Partitioningsupporting

confidence: 84%

Rainfall Partitioning in Chinese Pine (Pinus tabuliformis Carr.) Stands at Three Different Ages

LingLing

Han

Cheng

et al. 2020

Forests

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“…The bark roughness plays a key role on stemflow generation: species with smooth bark present significantly higher stemflow generation than species with rough bark (Levia & Germer, 2015;Magliano et al, 2019;Xiao & McPherson, 2011). Some field observations (Levia & Frost, 2003) and laboratory experiments (Garcia-Estringana, Alonso-Blázquez, & Alegre, 2010;Xiao & McPherson, 2016) suggest that species with rough bark have more water storage capacity (interception losses) than species with smooth bark preventing stemflow generation.…”

Section: Discussionmentioning

confidence: 99%

Interception loss, throughfall and stemflow by Larrea divaricata: The role of rainfall characteristics and plant morphological attributes

Magliano

Whitworth‐Hulse

Florio

et al. 2019

Ecological Research

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Rainfall partitioning into interception loss, throughfall and stemflow affects the amount and the spatial heterogeneity of water entering into the soil at the patch scale, strongly controlling net primary productivity of drylands. In this paper, we explored rainfall partitioning and its biophysical controls in Larrea divaricata (jarilla), one of the most abundant shrubs in the Dry Chaco rangelands (Argentina). On average, interception loss, throughfall and stemflow accounted for 9.4, 78.6 and 12.0% of total rainfall, respectively. Interception loss proportion decreased with the increment of rainfall event size and intensity, whereas throughfall proportion showed the opposite pattern. Stemflow proportion increased with the increment of rainfall event size but presented different relations with rainfall event intensity. The increment of rainfall event intensity increased the stemflow in small events (<20 mm), but decreased it in large events (>20 mm). Stemflow increased in plants with higher angles of insertion of stems (measured at 50 and 100 cm from soil surface; p < .05 and p < .01, respectively), but decreased in plants with larger canopy areas (p = .01). Spatial distribution of throughfall (coefficient of variation) decreased with the increment of rainfall event size and intensity. L. divaricata presented more stemflow generation and fewer interception losses than other similar woody species. Our findings help to understand the key role of vegetation canopy affecting the amount of water entering into the soil in drylands.

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“…Greater stemflow intensity than rainfall intensity is hydrologically significant at terrestrial ecosystems. This scenario indicates the convergence of the canopy-intercepted rain into the limited area around trunk or branch bases within a certain time period, i.e., 8.0 % and 3.5 % of rain being directed to the trunk base only accounting for 0.3 % and 0.4 % of plot area in the open rainforest (Germer et al, 2010) and undisturbed lowland tropical rainforest (Manfroi et al, 2004), respectively. Besides this, FR, which compared SFV with the RA that would have been collected at the same area as the basal area at an event scale (Herwitz, 1986), is commonly applied to assess the convergence effect via stemflow volume, rainfall amount and basal area (Carlyle-Moses et al, 2010;Siegert and Levia, 2014;Fan et al, 2015;Yang et al, 2019).…”

Section: Stemflow Intensity and Funneling Ratiomentioning

confidence: 99%

Temporally dependent effects of rainfall characteristics on inter- and intra-event branch-scale stemflow variability in two xerophytic shrubs

Yuan

Gao

et al. 2019

Hydrol. Earth Syst. Sci.

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Abstract. Stemflow is important for recharging root-zone soil moisture in arid regions. Previous studies have generally focused on stemflow volume, efficiency and influential factors but have failed to depict stemflow processes and quantify their relations with rainfall characteristics within events, particularly for xerophytic shrubs. Here, we measured the stemflow volume, intensity, funneling ratio and time lags to rain at two dominant shrub species (Caragana korshinskii and Salix psammophila) and rainfall characteristics during 54 events at the semiarid Liudaogou catchment of the Loess Plateau, China, during the 2014–2015 rainy seasons. The funneling ratio was calculated as the ratio between stemflow and rainfall intensities at the inter- and intra-event scales. Our results indicated that the stemflow of C. korshinskii and S. psammophila, on average, started at 66.2 and 54.8 min, maximized 109.4 and 120.5 min after rain began, and ended 20.0 and 13.5 min after rain ceased. The two shrubs had shorter stemflow duration (3.8 and 3.4 h) and significantly larger stemflow intensities (517.5 and 367.3 mm h−1) than those of rain (4.7 h and 4.5 mm h−1). As branch size increased, both species shared the decreasing funneling ratios (97.7–163.7 and 44.2–212.0) and stemflow intensities (333.8–716.2 and 197.2–738.7 mm h−1). Tested by the multiple correspondence analysis and stepwise regression, rainfall amount and duration controlled stemflow volume and duration, respectively, at the event scale by linear relations (p < 0.01). Rainfall intensity and raindrop momentum controlled stemflow intensity and time lags to rain for both species within the event by linear or power relationships (p < 0.01). Rainfall intensity was the key factor affecting stemflow process of C. korshinskii, whereas raindrop momentum had the greatest influence on stemflow process of S. psammophila. Therefore, rainfall characteristics had temporally dependent influences on corresponding stemflow variables, and the influence also depended on specific species.

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Interception, throughfall and stemflow partition in drylands: Global synthesis and meta-analysis

Cited by 91 publications

References 65 publications

Rainfall Partitioning in Chinese Pine (Pinus tabuliformis Carr.) Stands at Three Different Ages

Rainfall Partitioning in Chinese Pine (Pinus tabuliformis Carr.) Stands at Three Different Ages

Interception loss, throughfall and stemflow by Larrea divaricata: The role of rainfall characteristics and plant morphological attributes

Temporally dependent effects of rainfall characteristics on inter- and intra-event branch-scale stemflow variability in two xerophytic shrubs

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