TY - JOUR
T1 - Impact of natural gullies on groundwater hydrology in the Zoige peatland, China
AU - Li, Zhiwei
AU - Gao, Peng
N1 - Funding Information:
The data used are listed in Table 1 and the supplemental material. The field work of this study was supported by the National Natural Science Foundation of China (91547112, 91647204, 51709020, and 91647118), the Open Project of State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University (2017-KF-01), and the Project of Qinghai Science & Technology Department (2016-ZJ-Y01). The corresponding author was also partially supported by the Appleby-Mosher fund of Maxwell School of Citizenship and Public Affairs, Syracuse University. We would like to thank Professor Xuyue Hu for his support for our work. Professor Donald Siegel helped the corresponding author to design the original piezometer in our preliminary study. We also thank Jing Liu, Xiang Li, Kaiyu Li, and Yezhou Wu for field assistance in July 2016 and May 2017, and Yuchi You partly helps us produce Fig. 1.
Funding Information:
The data used are listed in Table 1 and the supplemental material. The field work of this study was supported by the National Natural Science Foundation of China ( 91547112 , 91647204 , 51709020 , and 91647118 ), the Open Project of State Key Laboratory of Plateau Ecology and Agriculture , Qinghai University ( 2017-KF-01 ), and the Project of Qinghai Science & Technology Department ( 2016-ZJ-Y01 ). The corresponding author was also partially supported by the Appleby-Mosher fund of Maxwell School of Citizenship and Public Affairs, Syracuse University. We would like to thank Professor Xuyue Hu for his support for our work. Professor Donald Siegel helped the corresponding author to design the original piezometer in our preliminary study. We also thank Jing Liu, Xiang Li, Kaiyu Li, and Yezhou Wu for field assistance in July 2016 and May 2017, and Yuchi You partly helps us produce Fig. 1 .
Publisher Copyright:
© 2018 The Authors
PY - 2019/2
Y1 - 2019/2
N2 - Study region: The study area was in the upland peatland within the Zoige basin with elevations ranging between 3400 and 3800 m. It is located in the source area of Upper Yellow River that is developed on the Qinghai-Tibet Plateau, China. Study focus: We examined possible influence of two different types of gullies on groundwater hydrology in this alpine peatland, the gullies whose beds cutting through the peat layer and those whose beds are within the peat layer. We measured saturated hydraulic conductivity, hydraulic head, and water table levels both vertically and horizontally in three representative sites distributed in the study area representing blanket peatland and peats surrounded by two types of the gullies during May 11–23, 2017. Using these data, we showed that different patterns of these parameters in both directions may be clearly observed among the three sites. New hydrological insights for the region: We have shown for the first time in this region that (1) gullies with the bed cutting through the peat layer may have profound impact on peat groundwater hydrology; (2) groundwater seepage at the bottom of the peat layer may be enhanced by gullies with the bed cutting through the peat layer; and (3) increased groundwater seepage could be an additional cause for peatland degradation during the prolonged dry and cold period of a year.
AB - Study region: The study area was in the upland peatland within the Zoige basin with elevations ranging between 3400 and 3800 m. It is located in the source area of Upper Yellow River that is developed on the Qinghai-Tibet Plateau, China. Study focus: We examined possible influence of two different types of gullies on groundwater hydrology in this alpine peatland, the gullies whose beds cutting through the peat layer and those whose beds are within the peat layer. We measured saturated hydraulic conductivity, hydraulic head, and water table levels both vertically and horizontally in three representative sites distributed in the study area representing blanket peatland and peats surrounded by two types of the gullies during May 11–23, 2017. Using these data, we showed that different patterns of these parameters in both directions may be clearly observed among the three sites. New hydrological insights for the region: We have shown for the first time in this region that (1) gullies with the bed cutting through the peat layer may have profound impact on peat groundwater hydrology; (2) groundwater seepage at the bottom of the peat layer may be enhanced by gullies with the bed cutting through the peat layer; and (3) increased groundwater seepage could be an additional cause for peatland degradation during the prolonged dry and cold period of a year.
KW - Hydraulic head
KW - Natural gully
KW - Saturated hydraulic conductivity
KW - Water table level
KW - Zoige peatland
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U2 - 10.1016/j.ejrh.2018.12.001
DO - 10.1016/j.ejrh.2018.12.001
M3 - Article
AN - SCOPUS:85058165464
SN - 2214-5818
VL - 21
SP - 25
EP - 39
JO - Journal of Hydrology: Regional Studies
JF - Journal of Hydrology: Regional Studies
ER -