Predominant role of soil moisture in regulating the response of ecosystem carbon fluxes to global change factors in a semi-arid grassland on the Loess Plateau

2020 ◽  
Vol 738 ◽  
pp. 139746 ◽  
Author(s):  
Fanglong Su ◽  
Fuwei Wang ◽  
Zhen Li ◽  
Yanan Wei ◽  
Shijie Li ◽  
...  
Keyword(s):  
Soil Moisture ◽  
Global Change ◽  
Loess Plateau ◽  
The Loess Plateau ◽  
Predominant Role ◽  
Change Factors ◽  
Ecosystem Carbon ◽  
Ecosystem Carbon Fluxes ◽  
Semi Arid

Factors influencing soil moisture in the Loess Plateau, China: a review

2018 ◽  
Vol 109 (3-4) ◽  
pp. 501-509
Author(s):  
Wenwu ZHAO ◽  
Xuening FANG ◽  
Stefani DARYANTO ◽  
Xiao ZHANG ◽  
Yaping WANG
Keyword(s):  
Soil Moisture ◽  
Loess Plateau ◽  
Arid Regions ◽  
Scale Effects ◽  
Soil Depth ◽  
Three Dimensional ◽  
Future Research ◽  
The Loess Plateau ◽  
Deep Soil ◽  
Semi Arid

ABSTRACTSoil moisture is a key issue for eco-hydrological research in arid and semi-arid regions, and is primarily concerned with water availability for vegetation. Shallow and deep soil moisture occurs according to the maximum infiltration depth. Soil moisture has three-dimensional characteristics: inter-layer variability, horizontal heterogeneity and temporal variability. Soil moisture is affected by various factors including terrain, soil characteristics, climate and vegetation, and the effects of these change with time (e.g., rainfall patterns) and space (e.g., soil depth). In arid and semi-arid regions, deep soil moisture is of particular importance to vegetation restoration and the evaluation of vegetation sustainability; however, accurate prediction of the spatial distribution of deep soil moisture in the Loess Plateau of China still faces numerous challenges. Therefore, future research should focus on the mechanisms, models and scale effects of soil moisture, particularly for deep soil moisture.

Trade-off between soil moisture and species diversity in semi-arid steppes in the Loess Plateau of China

2021 ◽  
Vol 750 ◽  
pp. 141646
Author(s):  
Lei Wang ◽  
Xing Wang ◽  
Lin Chen ◽  
Nai-ping Song ◽  
Xin-guo Yang
Keyword(s):  
Soil Moisture ◽  
Species Diversity ◽  
Loess Plateau ◽  
The Loess Plateau ◽  
Trade Off ◽  
Semi Arid

Seasonal variation of deep soil moisture under different land uses on the semi-arid Loess Plateau of China

2018 ◽  
Vol 19 (3) ◽  
pp. 1179-1189 ◽  
Author(s):  
Bowei Yu ◽  
Gaohuan Liu ◽  
Qingsheng Liu ◽  
Chong Huang ◽  
He Li ◽  
...  
Keyword(s):  
Soil Moisture ◽  
Seasonal Variation ◽  
Loess Plateau ◽  
Land Uses ◽  
Deep Soil ◽  
Semi Arid

Soil moisture variations in response to precipitation properties and plant communities on steep gully slope on the Loess Plateau

2021 ◽  
Vol 256 ◽  
pp. 107086
Author(s):  
Pingzong Zhu ◽  
Guanghui Zhang ◽  
Hongxiao Wang ◽  
Baojun Zhang ◽  
Yingna Liu
Keyword(s):  
Soil Moisture ◽  
Loess Plateau ◽  
Plant Communities ◽  
The Loess Plateau

Stochastic soil moisture dynamic modelling: a case study in the Loess Plateau, China

2018 ◽  
Vol 109 (3-4) ◽  
pp. 437-444
Author(s):  
Cong WANG ◽  
Shuai WANG ◽  
Bojie FU ◽  
Lu ZHANG ◽  
Nan LU ◽  
...  
Keyword(s):  
Soil Moisture ◽  
Water Balance ◽  
Loess Plateau ◽  
Hydrological Cycle ◽  
Dynamic Modelling ◽  
Vegetation Restoration ◽  
Balance Model ◽  
Rainfall Regime ◽  
The Loess Plateau ◽  
Dry Period

ABSTRACTSoil moisture is a key factor in the ecohydrological cycle in water-limited ecosystems, and it integrates the effects of climate, soil, and vegetation. The water balance and the hydrological cycle are significantly important for vegetation restoration in water-limited regions, and these dynamics are still poorly understood. In this study, the soil moisture and water balance were modelled with the stochastic soil water balance model in the Loess Plateau, China. This model was verified by monitoring soil moisture data of black locust plantations in the Yangjuangou catchment in the Loess Plateau. The influences of a rainfall regime change on soil moisture and water balance were also explored. Three meteorological stations were selected (Yulin, Yan'an, and Luochuan) along the precipitation gradient to detect the effects of rainfall spatial variability on the soil moisture and water balance. The results showed that soil moisture tended to be more frequent at low levels with decreasing precipitation, and the ratio of evapotranspiration under stress in response to rainfall also changed from 74.0% in Yulin to 52.3% in Luochuan. In addition, the effects of a temporal change in rainfall regime on soil moisture and water balance were explored at Yan'an. The soil moisture probability density function moved to high soil moisture in the wet period compared to the dry period of Yan'an, and the evapotranspiration under stress increased from 59.5% to 72% from the wet period to the dry period. The results of this study prove the applicability of the stochastic model in the Loess Plateau and reveal its potential for guiding the vegetation restoration in the next stage.

Sign in / Sign up

Export Citation Format

Share Document