The change of soil water storage in three land use types after 10 years on the Loess Plateau

CATENA ◽  
2016 ◽  
Vol 147 ◽  
pp. 87-95 ◽  
Author(s):  
Yong-wang Zhang ◽  
Zhou-ping Shangguan
Keyword(s):  
Land Use ◽  
Soil Water ◽  
Loess Plateau ◽  
Water Storage ◽  
Soil Water Storage ◽  
The Loess Plateau ◽  
Land Use Types

scholarly journals Importance of Temporal Scale in Assessing Changes in Soil-Water Storage in Apple Orchards on the Chinese Loess Plateau

Forests ◽  
2020 ◽  
Vol 11 (8) ◽  
pp. 793
Author(s):  
Yan Mu ◽  
Di Wang ◽  
Yanping Wang
Keyword(s):  
Soil Water ◽  
Loess Plateau ◽  
Multiple Scales ◽  
Water Storage ◽  
Chinese Loess Plateau ◽  
Soil Water Storage ◽  
Scientific Management ◽  
Apple Orchards ◽  
The Loess Plateau ◽  
Canopy Interception

Knowledge of changes in soil-water storage (SWS) at multiple scales in apple orchards is important for formulating policies for the scientific management and sound planning of apple plantations on the Loess Plateau in China. In this study, we measured precipitation, partitioned evapotranspiration (ET) into canopy interception, transpiration, and soil evaporation, and calculated the changes in SWS using the water-balance method at multiple scales in two neighbouring apple orchards (8 and 18 years old) on the Loess Plateau from May to September in 2013, 2014, 2015, and 2016. The results showed that ET was consistently lower for the 8- than the 18-year-old orchard in each year at the same scale (p < 0.05). The changes in SWS differed between the two orchards at the same scale, but the trends of change were similar in each year. The trend of the change in SWS at the same scale differed amongst the years for both orchards. The maximum supply of water from soil reservoirs for the two orchards also differed at different scales in each year and was higher at a daily cumulative scale than a monthly and annual scale in 2013, 2014, and 2016. The daily cumulative scale was thus a more suitable scale for representing the maximum contribution of the soil reservoir to supply water for the growth of the orchards during the study periods. Changes in SWS at a daily cumulative scale should be considered when assessing the effect of apple orchards on regional soil reservoirs on the Loess Plateau or in other water-limited regions.

scholarly journals Depth persistence of the spatial pattern of soil–water storage along a small transect in the Loess Plateau of China

2015 ◽  
Vol 529 ◽  
pp. 685-695 ◽  
Author(s):  
Xuezhang Li ◽  
Ming’an Shao ◽  
Xiaoxu Jia ◽  
Xiaorong Wei ◽  
Liang He
Keyword(s):  
Spatial Pattern ◽  
Soil Water ◽  
Loess Plateau ◽  
Water Storage ◽  
Soil Water Storage ◽  
The Loess Plateau

Elucidating soil moisture dynamics in agricultural landscapes under varying weather patterns

2021 ◽  
Author(s):  
Veronica Fritz ◽  
Thakshajini Thaasan ◽  
Andrew Williams ◽  
Ranjith Udawatta ◽  
Sidath Mendis ◽  
...  
Keyword(s):  
Land Use ◽  
Soil Moisture ◽  
Soil Water ◽  
Water Cycle ◽  
Water Storage ◽  
Soil Water Storage ◽  
Storm Events ◽  
Weather Patterns ◽  
Land Use Types ◽  
Moisture Dynamics

&lt;p&gt;Changing weather patterns and anthropogenic land use change significantly alter the terrestrial water cycle. A key variable that modulates the water cycle on the land surface is soil moisture and its variability in time and space. Hydrological models are used to simulate key components of the water cycle including infiltration, soil storage and uptake by plants. However, uncertainties remain in accurately representing soil moisture dynamics in models. Here, with the aid of several sensors installed at a 30-ha experimental research facility, we attempt to quantify differences in soil water storage across multiple land use types &amp;#8211; cropped area, mosaic of turf grass and native plants, and an unkept weeded area as control land use. We will also discuss the accuracy of sensors to correctly measure soil water storage. Our study was conducted at an agricultural experimental station in Columbia, Missouri, USA. We use a variety of instruments to measure weather, evapotranspiration, and soil water. We used boundary layer scintillometers to measure near-surface turbulence, sensors to continuously track soil moisture and temperature, as well as weather stations for precipitation, air temperature, solar radiation and wind speed. &amp;#160;Changes in volumetric water content and soil temperature are measured at 5-minute intervals at 10-, 20-, and 40-cm soil depths to compare soil water storage among the three land use types. We also took soil samples before and after several storm events to calibrate the sensor readings at three sites. We, then, analyzed several storm events over a period of five months and compared the actual soil moisture and soil temperature dynamics at finer time intervals. With additional measurements of weather and boundary layer turbulence, we hope to reveal the landscape and weather control on soil moisture distribution across multiple land uses, and their subsequent impact on plant water uptake. Our preliminary results indicate that continuously disturbed agricultural lands depletes soil moisture at faster rates, which may present challenges in maintaining land productivity in the long term.&lt;/p&gt;

scholarly journals Deep soil water storage varies with vegetation type and rainfall amount in the Loess Plateau of China

2018 ◽  
Vol 8 (1) ◽  
Author(s):  
Ruixue Cao ◽  
Xiaoxu Jia ◽  
Laiming Huang ◽  
Yuanjun Zhu ◽  
Lianhai Wu ◽  
...  
Keyword(s):  
Soil Water ◽  
Loess Plateau ◽  
Vegetation Type ◽  
Water Storage ◽  
Rainfall Amount ◽  
Soil Water Storage ◽  
The Loess Plateau ◽  
Deep Soil

scholarly journals Integrating a mini catchment with mulching for soil water management in a sloping jujube orchard on the semiarid Loess Plateau of China

Solid Earth ◽  
2016 ◽  
Vol 7 (1) ◽  
pp. 167-175 ◽  
Author(s):  
H. C. Li ◽  
X. D. Gao ◽  
X. N. Zhao ◽  
P. T. Wu ◽  
L. S. Li ◽  
...  
Keyword(s):  
Soil Water ◽  
Loess Plateau ◽  
Water Conservation ◽  
Rainy Season ◽  
Water Storage ◽  
Soil Water Storage ◽  
Fish Scale ◽  
The Loess Plateau ◽  
Bare Land ◽  
Water Compensation

Abstract. Conserving more soil water is of great importance to the sustainability of arid and semiarid orchards. Here we integrated fish-scale pits, semicircular mini-catchments for hill slope runoff collection, with mulches to test their effects on soil water storage in a 12-year-old dryland jujube orchard on the Loess Plateau of China, by using soil water measurements from April 2013 to November 2014. This experiment included four treatments: fish-scale pits with branch mulching (FB), fish-scale pits with straw mulching (FS), fish-scale pits without mulching (F), and bare land treatment (CK). Soil water was measured using the TRIME®-IPH time-domain reflectometer (TDR) tool in 20 cm intervals down to a depth of 180 cm, and was measured once every 2 weeks in the 2013 and 2014 growing seasons. The results showed that fish-scale pits with mulching were better in soil water conservation. Average soil water storage (SWS, for short) of FB at soil layer depths of 0–180 cm increased by 14.23 % (2013) and 21.81 % (2014), respectively, compared to CK, but only increased by 4.82 % (2013) and 5.34 % (2014), respectively, for the F treatment. The degree of soil water compensation, WS, was employed here to represent to what extent soil water was recharged from precipitation at the end of the rainy season relative to that at the beginning of the rainy season. A positive (negative) WS larger (lower) soil water content at the end of rainy season than at the beginning. For the treatment of FB, the values of WS over the entire soil profile were greater than 0; for the treatment of F, negative values of WS were observed in depths of 60–100 cm in both years. However, the bare land treatment showed negative values in depths of 40–180 cm. This indicated that integrating fish-scale pits with mulching could significantly increase soil water storage by increasing infiltration and decreasing evaporation, and it showed greater soil water storage and degree of soil water compensation compared to fish-scale pits alone. Since the branches used for mulching here were trimmed jujube branches, the cost of mulching materials was largely reduced. Therefore, integration of fish-scale pits with branch mulching is recommended in orchards for soil water conservation on the Loess Plateau and potentially for other regions.

scholarly journals Temporal changes of an alfalfa succession and related soil physical properties on the Loess Plateau, China

2009 ◽  
Vol 44 (2) ◽  
pp. 189-196 ◽  
Author(s):  
Dong Li She ◽  
Ming An Shao ◽  
Luis Carlos Timm ◽  
Klaus Reichardt
Keyword(s):  
Physical Properties ◽  
Bulk Density ◽  
Soil Water ◽  
Loess Plateau ◽  
Water Storage ◽  
Soil Bulk Density ◽  
Soil Physical Properties ◽  
Natural Vegetation ◽  
Soil Water Storage ◽  
The Loess Plateau

The objective of this work was to investigate the relationship between changes in the plant community and changes in soil physical properties and water availability, during a succession from alfalfa (Medicago sativa L.) to natural vegetation on the Loess Plateau, China. Data from a succession sere spanning 32 years were collated, and vegetative indexes were compared to changes related to soil bulk density and soil water storage. The alfalfa yield increased for approximately 7 years, then it declined and the alfalfa was replaced by a natural community dominated by Stipa bungeana that began to thrive about 10 years after alfalfa seeding. Soil bulk density increased over time, but the deterioration of the alfalfa was mainly ascribed to a severe reduction in soil water storage, which was lowest around the time when degradation commenced. The results indicated that water consumption by alfalfa could be reduced by reducing plant density. The analysis of the data also suggested that soil water recharge could be facilitated by rotating the alfalfa with other crops, natural vegetation, or bare soil.

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