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Soil water infiltration characteristics of reforested areas in the paleo-periglacial eastern Liaoning mountainous regions, China

Wang, Di ; Niu, Jianzhi ; Yang, Tao ; Miao, Yubo ; Zhang, Linus LU orcid ; Chen, Xiongwen ; Fan, Zhiping ; Dai, Zhengyu ; Wu, Haoyang and Yang, Shujian , et al. (2024) In Catena 234.
Abstract

Plantation forests (PF) and natural secondary forests (NSF) are the primary reforestation approaches. The establishment of PF can affect forest hydrological processes by changing soil structure. To date, few studies have focused on these changes and the effects on hydrological processes for the paleo-periglacial landform. To reveal reforestation approaches effects on water infiltration, including soil water infiltration capacity, retention capacity, and waterflow path pattern, we conducted field dye-tracer investigations with rainfall and laboratory infiltration experiments for the paleo-periglacial landform of eastern Liaoning mountains, China. The results showed that (1) Soil physical properties (including total porosity (TP),... (More)

Plantation forests (PF) and natural secondary forests (NSF) are the primary reforestation approaches. The establishment of PF can affect forest hydrological processes by changing soil structure. To date, few studies have focused on these changes and the effects on hydrological processes for the paleo-periglacial landform. To reveal reforestation approaches effects on water infiltration, including soil water infiltration capacity, retention capacity, and waterflow path pattern, we conducted field dye-tracer investigations with rainfall and laboratory infiltration experiments for the paleo-periglacial landform of eastern Liaoning mountains, China. The results showed that (1) Soil physical properties (including total porosity (TP), capillary porosity (CP), non-capillary porosity (NCP), initial soil water content (IWC), field water capacity (FWC)) and root abundance (RA) decreased with soil depth in both PF and NSF, while the soil bulk density (BD) and distribution of gravel content showed opposite changes. (2) Establishment of PF reduced the infiltration capacity and water retention capacity in the 0–20 cm layer, but enhanced the water retention capacity in 20–30 cm layer. Low IWC was conducive to increase soil water content (SWC) after infiltration. (3) Infiltration capacity parameters (including saturated hydraulic conductivity (Ks), SWC, difference between SWC and IWC (SWC–IWC), dye coverage ratio (DC)) were significantly correlated with BD, TP, CP, NCP, FWC, and fine roots RA (P < 0.05). Better connectivity gravels were more conducive to water infiltration. (4) Preferential flow was the main infiltration type, but with different waterflow paths pattern, with the 'funnel', 'finger' shape for PF, NSF, respectively. Increasing infiltration could increase flow path connectivity. Our findings show that soil physical properties, roots, and gravel occurrence affected soil infiltration, and different reforestation approaches had varying impacts on soil infiltration, water redistribution, transportation, and storage of surface and groundwater, improving the understanding of ecohydrological processes and effects of water resources management in forest ecosystems of paleo-periglacial landform.

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Contribution to journal
publication status
published
subject
keywords
Infiltration capacity, Paleo-periglacial landform, Reforestation approaches, Root abundance (RA) and gravel distribution, Soil properties, Soil water content (SWC)
in
Catena
volume
234
article number
107613
publisher
Elsevier
external identifiers
  • scopus:85175187311
ISSN
0341-8162
DOI
10.1016/j.catena.2023.107613
language
English
LU publication?
yes
additional info
Funding Information: This research was funded by the National Natural Science Foundation of China ( 41877154 ), the National Key Research and Development Program of China ( 2022YFF1300804 ) and the National Natural Science Foundation of China ( 41977074 ). Publisher Copyright: © 2023
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fea6ec24-2e60-45fd-8117-aea4225e9e92
date added to LUP
2023-11-06 09:17:45
date last changed
2024-03-06 09:59:48
@article{fea6ec24-2e60-45fd-8117-aea4225e9e92,
  abstract     = {{<p>Plantation forests (PF) and natural secondary forests (NSF) are the primary reforestation approaches. The establishment of PF can affect forest hydrological processes by changing soil structure. To date, few studies have focused on these changes and the effects on hydrological processes for the paleo-periglacial landform. To reveal reforestation approaches effects on water infiltration, including soil water infiltration capacity, retention capacity, and waterflow path pattern, we conducted field dye-tracer investigations with rainfall and laboratory infiltration experiments for the paleo-periglacial landform of eastern Liaoning mountains, China. The results showed that (1) Soil physical properties (including total porosity (TP), capillary porosity (CP), non-capillary porosity (NCP), initial soil water content (IWC), field water capacity (FWC)) and root abundance (RA) decreased with soil depth in both PF and NSF, while the soil bulk density (BD) and distribution of gravel content showed opposite changes. (2) Establishment of PF reduced the infiltration capacity and water retention capacity in the 0–20 cm layer, but enhanced the water retention capacity in 20–30 cm layer. Low IWC was conducive to increase soil water content (SWC) after infiltration. (3) Infiltration capacity parameters (including saturated hydraulic conductivity (Ks), SWC, difference between SWC and IWC (SWC–IWC), dye coverage ratio (DC)) were significantly correlated with BD, TP, CP, NCP, FWC, and fine roots RA (P &lt; 0.05). Better connectivity gravels were more conducive to water infiltration. (4) Preferential flow was the main infiltration type, but with different waterflow paths pattern, with the 'funnel', 'finger' shape for PF, NSF, respectively. Increasing infiltration could increase flow path connectivity. Our findings show that soil physical properties, roots, and gravel occurrence affected soil infiltration, and different reforestation approaches had varying impacts on soil infiltration, water redistribution, transportation, and storage of surface and groundwater, improving the understanding of ecohydrological processes and effects of water resources management in forest ecosystems of paleo-periglacial landform.</p>}},
  author       = {{Wang, Di and Niu, Jianzhi and Yang, Tao and Miao, Yubo and Zhang, Linus and Chen, Xiongwen and Fan, Zhiping and Dai, Zhengyu and Wu, Haoyang and Yang, Shujian and Qiu, Qihuang and Berndtsson, Ronny}},
  issn         = {{0341-8162}},
  keywords     = {{Infiltration capacity; Paleo-periglacial landform; Reforestation approaches; Root abundance (RA) and gravel distribution; Soil properties; Soil water content (SWC)}},
  language     = {{eng}},
  publisher    = {{Elsevier}},
  series       = {{Catena}},
  title        = {{Soil water infiltration characteristics of reforested areas in the paleo-periglacial eastern Liaoning mountainous regions, China}},
  url          = {{http://dx.doi.org/10.1016/j.catena.2023.107613}},
  doi          = {{10.1016/j.catena.2023.107613}},
  volume       = {{234}},
  year         = {{2024}},
}