Effects of plastic mulch on soil water migration in arid oasis farmland: Evidence of stable isotopes

Zhu, Guofeng; Yong, Leilei; Zhang, Zhuanxia; Sun, Zhigang; Wan, Qiaozhuo; Xu, Yan; Ma, Hao; Sang, Liyuan; Liu, Yuwei; Zhao, Kan; Guo, Hua

doi:10.1016/j.catena.2021.105580

Cited by 19 publications

(12 citation statements)

References 46 publications

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“…6. Effects of plastic film on soil water migration in arid oasis farmland -our research shows that mulching can effectively reduce the evaporative loss of topsoil water and improve water use efficiency during the whole maize growing season (Zhu et al, 2021c).…”

Section: Introductionmentioning

confidence: 83%

Stable water isotope monitoring network of different water bodies in Shiyang River basin, a typical arid river in China

Zhu

Liu

Shi

et al. 2022

Earth Syst. Sci. Data

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Abstract. Ecosystems in arid areas are fragile and are easily disturbed by various natural and human factors. As natural tracers widely exist in nature, stable isotopes can be valuable for studying environmental change and the water cycle. From 2015 to 2020, we took the Shiyang River basin, which has the highest utilization rate of water resources and the most prominent contradiction of water use, as a typical demonstration basin to establish and improve the isotope hydrology observation system. The data in the observation system are classified by water type (precipitation, river water, lake water, groundwater, soil water, and plant water). Six observation systems with stable isotopes as the main observation elements have been built. These include river source region, oasis region, reservoir channel system region, oasis farmland region, ecological engineering construction region, and salinization process region; meteorological and hydrological data have also been collected. We will gradually improve the various observation systems, increase the data of observation sites, and update the data set yearly. We can use these data to research the continental river basin ecological hydrology, such as surface water evaporation loss, landscape river water cycle impact of the dam, dam water retention time, oasis farmland irrigation methods, and the atmosphere, such as the contribution of inland water circulation to inland river precipitation, climate transformation, below-cloud evaporation effect, and extreme climate events, which provides a scientific basis for water resources utilization and ecological environment restoration in the arid area. The data sets are available at https://doi.org/10.17632/vhm44t74sy.1 (Zhu, 2022).

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Section: Introductionmentioning

confidence: 83%

Stable water isotope monitoring network of different water bodies in Shiyang River basin, a typical arid river in China

Zhu

Liu

Shi

et al. 2022

Earth Syst. Sci. Data

Self Cite

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“…The average annual precipitation in the basin is 281.2 mm and the average annual evaporation is as high as 1133.4 mm (Zhu et al, 2020). The river has an average annual outflow of 3.184 × 10 8 m 3 , ranking first among the eight rivers in the Shiyang River basin, accounting for about 22.3% of the average annual outflow of Shiyang River (Zhu et al, 2021). Therefore, it occupies an important position among many tributaries of Shiyang River (Zhu et al, 2018).…”

Section: Study Areamentioning

confidence: 99%

Spatial variability of runoff recharge sources and influence mechanisms in an arid mountain flow‐producing zone

Sang

Zhu

Qiu

et al. 2022

Hydrological Processes

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In‐depth knowledge of the hydrological conditions of basins in arid regions can help to maintain the long‐term water security. The mechanisms of runoff generation and flow paths in different landscape areas are not fully known due to spatial variability. We have explored the mechanisms by which spatial variability affects the runoff recharge sources in the Xiying River Basin. The results showed that the spatial variability of the sources and generation mechanisms of runoff in the arid mountain flow‐producing zone is the result of the combined effect of different landscape, elevation and meteorological elements. In the upstream area, the short mean transit time (MTT) combined with the high contribution of recharge from the meltwater (29.32%) and the proportion of pre‐event water (between 60% and 90%) means that runoff production processes are strongly controlled by meltwater recharge and precipitation events. The MTT and the proportion of pre‐event water in the midstream area are ranked in the middle of the three landscape areas, but the highest contribution of precipitation (16.57%) indicates the importance of precipitation to runoff production processes. In the downstream area, the MTT is the longest and the proportion of pre‐event water is the smallest, and groundwater remains the basis for long‐term stability of runoff (groundwater contribution rate: 40.62%). By enhancing the spatial resolution for identifying runoff recharge sources can reduce the model uncertainty by 69%. Thus, taking full account of the spatial heterogeneity in arid regions is an important initiative to achieve scientific water resources management.

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“…Soil moisture content fundamental to crop growth. Both excessive and deficient soil moisture can be detrimental to crop yield 1 , 2 . Water infiltration is a hydrological process in which water from rain and irrigation enters the soil vertically through the surface, and is mainly affected by the physical and chemical properties of the soil, rainfall intensity, topography, and surface coverage 3 , 4 .…”

Section: Introductionmentioning

confidence: 99%

“…Water infiltration is a hydrological process in which water from rain and irrigation enters the soil vertically through the surface, and is mainly affected by the physical and chemical properties of the soil, rainfall intensity, topography, and surface coverage 3 , 4 . As one of the effective water saving measures, mulches are widely used in agricultural industry for their capabilities of retaining water and maintaining soil moisture 2 . By hindering the exchange of water vapor between the soil and the atmosphere, the mulches effectively control water loss and keep the soil at a certain moisture level, thereby improving the water-holding capacity 5 , 6 .…”

Section: Introductionmentioning

confidence: 99%

Hydrological characteristics of different organic materials mulches

Zhang

Xiao

Zhang

et al. 2023

Sci Rep

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The study aims to find the properties of three organic mulch varieties and their effects on soil moisture and crop growth. Three organic mulches: newspaper, grass, and bran were selected as the research objects, and were analyzed through double-ring infiltration and water loss tests so that water permeability and water-holding capacity of the three mulching materials could be figured out. The results showed the descending order of the three mulching treatments and non-treatment by the infiltration rate of the soil: newspaper > bare ground > grass > bran. In terms of the water-holding capacity, the three organic mulches can be ranked from high to low as newspaper, grass, and bran; by the cumulative water loss as newspaper, grass, and bran; and by water-retention capacity as bran, grass, and newspaper, respectively. By conducting regression analysis, it is found that the water-holding capacity of the mulches is related to water immersion time and the amount of water absorbed and that there is a significant logarithmic relationship between the amount of water loss and water losing time. The fitting results of the three mulches are good. Besides, a power-function relationship exists between water absorption rate and immersion time, and between water loss rate and water loss time. The water infiltration of the soil under the newspaper mulching treatment is the best, as the newspaper can help to improve soil moisture and weaken surface runoff under flood irrigation and heavy rain. Bran possesses the strongest capacity for water retention, which is beneficial to soil moisture retention in areas where sprinkler irrigation, drip irrigation, and light to moderate rain prevail. The research results can provide a basis for improving the moisture-utilization efficiency in farmlands by using organic mulches.

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Effects of plastic mulch on soil water migration in arid oasis farmland: Evidence of stable isotopes

Cited by 19 publications

References 46 publications

Stable water isotope monitoring network of different water bodies in Shiyang River basin, a typical arid river in China

Stable water isotope monitoring network of different water bodies in Shiyang River basin, a typical arid river in China

Spatial variability of runoff recharge sources and influence mechanisms in an arid mountain flow‐producing zone

Hydrological characteristics of different organic materials mulches

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