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Variations in Soil Water Content and Evapotranspiration in Relation to Precipitation Pulses within Desert Steppe in Inner Mongolia, China
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| Zeitschriftentitel: | Water |
|---|---|
| Personen und Körperschaften: | , , , , , , , , |
| In: | Water, 11, 2019, 2, S. 198 |
| Format: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
MDPI AG
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| Schlagwörter: |
| author_facet |
Song, Yifan Lu, Yajing Guo, Zhongxiao Xu, Xiaomin Liu, Tiejun Wang, Jun Wang, Wenjun Hao, Weigang Wang, Jian Song, Yifan Lu, Yajing Guo, Zhongxiao Xu, Xiaomin Liu, Tiejun Wang, Jun Wang, Wenjun Hao, Weigang Wang, Jian |
|---|---|
| author |
Song, Yifan Lu, Yajing Guo, Zhongxiao Xu, Xiaomin Liu, Tiejun Wang, Jun Wang, Wenjun Hao, Weigang Wang, Jian |
| spellingShingle |
Song, Yifan Lu, Yajing Guo, Zhongxiao Xu, Xiaomin Liu, Tiejun Wang, Jun Wang, Wenjun Hao, Weigang Wang, Jian Water Variations in Soil Water Content and Evapotranspiration in Relation to Precipitation Pulses within Desert Steppe in Inner Mongolia, China Water Science and Technology Aquatic Science Geography, Planning and Development Biochemistry |
| author_sort |
song, yifan |
| spelling |
Song, Yifan Lu, Yajing Guo, Zhongxiao Xu, Xiaomin Liu, Tiejun Wang, Jun Wang, Wenjun Hao, Weigang Wang, Jian 2073-4441 MDPI AG Water Science and Technology Aquatic Science Geography, Planning and Development Biochemistry http://dx.doi.org/10.3390/w11020198 <jats:p>Neither single nor discontinuous hydrological observation data can truly reflect periodic changes in soil moisture under natural conditions or interrelationships between various water sources. Therefore, in this study, precipitation pulse characteristics and variations in the soil water content (SWC) and actual evapotranspiration (ETa) in relation to pulses are explored through a field multi-water continuous observation system set in desert steppe in Inner Mongolia, China. A comparison between precipitation events in the growing seasons of 2016 and 2017 shows that precipitation events that are greater than 10 mm are the main cause of dramatic interannual precipitation variations in this region. A single small precipitation event has a limited impact on SWC and provides no obvious increase in the SWC within the top 10 cm soil layer. The precipitation interval ratio (P/I) is suitable for comparing water stresses of different drying-wetting cycles, and correlations between soil layers are found to be closer in humid years than in dry years. In this study, three modes of interpulse ETa in the desert steppe are discussed: a stable ETa mode under a water-sufficient condition, an attenuation ETa mode, and a stable ETa mode under extreme drought conditions.</jats:p> Variations in Soil Water Content and Evapotranspiration in Relation to Precipitation Pulses within Desert Steppe in Inner Mongolia, China Water |
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Variations in Soil Water Content and Evapotranspiration in Relation to Precipitation Pulses within Desert Steppe in Inner Mongolia, China |
| title_unstemmed |
Variations in Soil Water Content and Evapotranspiration in Relation to Precipitation Pulses within Desert Steppe in Inner Mongolia, China |
| title_full |
Variations in Soil Water Content and Evapotranspiration in Relation to Precipitation Pulses within Desert Steppe in Inner Mongolia, China |
| title_fullStr |
Variations in Soil Water Content and Evapotranspiration in Relation to Precipitation Pulses within Desert Steppe in Inner Mongolia, China |
| title_full_unstemmed |
Variations in Soil Water Content and Evapotranspiration in Relation to Precipitation Pulses within Desert Steppe in Inner Mongolia, China |
| title_short |
Variations in Soil Water Content and Evapotranspiration in Relation to Precipitation Pulses within Desert Steppe in Inner Mongolia, China |
| title_sort |
variations in soil water content and evapotranspiration in relation to precipitation pulses within desert steppe in inner mongolia, china |
| topic |
Water Science and Technology Aquatic Science Geography, Planning and Development Biochemistry |
| url |
http://dx.doi.org/10.3390/w11020198 |
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2019 |
| physical |
198 |
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<jats:p>Neither single nor discontinuous hydrological observation data can truly reflect periodic changes in soil moisture under natural conditions or interrelationships between various water sources. Therefore, in this study, precipitation pulse characteristics and variations in the soil water content (SWC) and actual evapotranspiration (ETa) in relation to pulses are explored through a field multi-water continuous observation system set in desert steppe in Inner Mongolia, China. A comparison between precipitation events in the growing seasons of 2016 and 2017 shows that precipitation events that are greater than 10 mm are the main cause of dramatic interannual precipitation variations in this region. A single small precipitation event has a limited impact on SWC and provides no obvious increase in the SWC within the top 10 cm soil layer. The precipitation interval ratio (P/I) is suitable for comparing water stresses of different drying-wetting cycles, and correlations between soil layers are found to be closer in humid years than in dry years. In this study, three modes of interpulse ETa in the desert steppe are discussed: a stable ETa mode under a water-sufficient condition, an attenuation ETa mode, and a stable ETa mode under extreme drought conditions.</jats:p> |
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| author | Song, Yifan, Lu, Yajing, Guo, Zhongxiao, Xu, Xiaomin, Liu, Tiejun, Wang, Jun, Wang, Wenjun, Hao, Weigang, Wang, Jian |
| author_facet | Song, Yifan, Lu, Yajing, Guo, Zhongxiao, Xu, Xiaomin, Liu, Tiejun, Wang, Jun, Wang, Wenjun, Hao, Weigang, Wang, Jian, Song, Yifan, Lu, Yajing, Guo, Zhongxiao, Xu, Xiaomin, Liu, Tiejun, Wang, Jun, Wang, Wenjun, Hao, Weigang, Wang, Jian |
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| description | <jats:p>Neither single nor discontinuous hydrological observation data can truly reflect periodic changes in soil moisture under natural conditions or interrelationships between various water sources. Therefore, in this study, precipitation pulse characteristics and variations in the soil water content (SWC) and actual evapotranspiration (ETa) in relation to pulses are explored through a field multi-water continuous observation system set in desert steppe in Inner Mongolia, China. A comparison between precipitation events in the growing seasons of 2016 and 2017 shows that precipitation events that are greater than 10 mm are the main cause of dramatic interannual precipitation variations in this region. A single small precipitation event has a limited impact on SWC and provides no obvious increase in the SWC within the top 10 cm soil layer. The precipitation interval ratio (P/I) is suitable for comparing water stresses of different drying-wetting cycles, and correlations between soil layers are found to be closer in humid years than in dry years. In this study, three modes of interpulse ETa in the desert steppe are discussed: a stable ETa mode under a water-sufficient condition, an attenuation ETa mode, and a stable ETa mode under extreme drought conditions.</jats:p> |
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| spelling | Song, Yifan Lu, Yajing Guo, Zhongxiao Xu, Xiaomin Liu, Tiejun Wang, Jun Wang, Wenjun Hao, Weigang Wang, Jian 2073-4441 MDPI AG Water Science and Technology Aquatic Science Geography, Planning and Development Biochemistry http://dx.doi.org/10.3390/w11020198 <jats:p>Neither single nor discontinuous hydrological observation data can truly reflect periodic changes in soil moisture under natural conditions or interrelationships between various water sources. Therefore, in this study, precipitation pulse characteristics and variations in the soil water content (SWC) and actual evapotranspiration (ETa) in relation to pulses are explored through a field multi-water continuous observation system set in desert steppe in Inner Mongolia, China. A comparison between precipitation events in the growing seasons of 2016 and 2017 shows that precipitation events that are greater than 10 mm are the main cause of dramatic interannual precipitation variations in this region. A single small precipitation event has a limited impact on SWC and provides no obvious increase in the SWC within the top 10 cm soil layer. The precipitation interval ratio (P/I) is suitable for comparing water stresses of different drying-wetting cycles, and correlations between soil layers are found to be closer in humid years than in dry years. In this study, three modes of interpulse ETa in the desert steppe are discussed: a stable ETa mode under a water-sufficient condition, an attenuation ETa mode, and a stable ETa mode under extreme drought conditions.</jats:p> Variations in Soil Water Content and Evapotranspiration in Relation to Precipitation Pulses within Desert Steppe in Inner Mongolia, China Water |
| spellingShingle | Song, Yifan, Lu, Yajing, Guo, Zhongxiao, Xu, Xiaomin, Liu, Tiejun, Wang, Jun, Wang, Wenjun, Hao, Weigang, Wang, Jian, Water, Variations in Soil Water Content and Evapotranspiration in Relation to Precipitation Pulses within Desert Steppe in Inner Mongolia, China, Water Science and Technology, Aquatic Science, Geography, Planning and Development, Biochemistry |
| title | Variations in Soil Water Content and Evapotranspiration in Relation to Precipitation Pulses within Desert Steppe in Inner Mongolia, China |
| title_full | Variations in Soil Water Content and Evapotranspiration in Relation to Precipitation Pulses within Desert Steppe in Inner Mongolia, China |
| title_fullStr | Variations in Soil Water Content and Evapotranspiration in Relation to Precipitation Pulses within Desert Steppe in Inner Mongolia, China |
| title_full_unstemmed | Variations in Soil Water Content and Evapotranspiration in Relation to Precipitation Pulses within Desert Steppe in Inner Mongolia, China |
| title_short | Variations in Soil Water Content and Evapotranspiration in Relation to Precipitation Pulses within Desert Steppe in Inner Mongolia, China |
| title_sort | variations in soil water content and evapotranspiration in relation to precipitation pulses within desert steppe in inner mongolia, china |
| title_unstemmed | Variations in Soil Water Content and Evapotranspiration in Relation to Precipitation Pulses within Desert Steppe in Inner Mongolia, China |
| topic | Water Science and Technology, Aquatic Science, Geography, Planning and Development, Biochemistry |
| url | http://dx.doi.org/10.3390/w11020198 |