Risk Assessment of Regional Irrigation Water Demand and Supply in an Arid Inland River Basin of Northwestern China

Guo, Bin; Li, Weihong; Guo, Jinyun; Chen, Chuanfa

doi:10.3390/su70912958

Cited by 26 publications

(13 citation statements)

References 16 publications

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“…The peak of the groundwater level is opposite to the seasonal variation in precipitation ( Figure 3c); therefore, this peak appears in March, whereas the minimum value appears in August (Figure 5b). This finding is most likely caused by the seasonal extraction of groundwater for irrigation [63][64][65]. Figure 5c shows the monthly GWSA estimated by multiplying GWSA with the average specific yield.…”

Section: Lu/lc Class Descriptionmentioning

confidence: 99%

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Analysis of Water Resources in Horqin Sandy Land Using Multisource Data from 2003 to 2010

et al. 2016

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Over the past four decades, land use/land cover (LU/LC) change, coupled with persistent drought, has resulted in the decline of groundwater levels in Horqin Sandy Land. Accordingly, this study quantifies changes in LU/LC and groundwater storage (GWS). Furthermore, it investigates the effects of LU/LC changes on GWS. GWS changes are estimated using Gravity Recovery and Climate Experiment (GRACE) data and ground-based measurements obtained from July 2003 to December 2010. Soil moisture and snow water equivalent data derived from the Global Land Data Assimilation System (GLDAS) are used to isolate GWS changes from GRACE-derived terrestrial water storage changes. The result shows that the groundwater depletion rate in Horqin Sandy Land is 13.5˘1.9 mm¨year´1 in 2003-2010, which is consistent with the results of monitoring well stations. LU/LC changes are detected using bitemporal imageries (2003 and 2010) from Landsat Thematic Mapper through the post-classification comparison method. The result shows that LU/LC significantly changed during the aforementioned period. Bare soil and built-up land have increased by 76.6% and 82.2%, respectively, while cropland, vegetation, and water bodies have decreased by 14.1%, 74.5%, and 82.6%, respectively. The analysis of GWS and LU/LC changes shows that LU/LC changes and persistent drought are the main factors that affect groundwater resources.

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Section: Lu/lc Class Descriptionmentioning

confidence: 99%

“…10 of 18 appears in August (Figure 5b). This finding is most likely caused by the seasonal extraction of groundwater for irrigation [63][64][65]. Figure 5c shows the monthly GWSA estimated by multiplying GWSA with the average specific yield.…”

Section: Gws Changesmentioning

confidence: 99%

Analysis of Water Resources in Horqin Sandy Land Using Multisource Data from 2003 to 2010

et al. 2016

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“…However, there are some possibilities to make a comparison. Guo et al (2015) found that the mean net irrigation requirement in the Kaidukongqi river basin in China reached 861 mm between 1985 -2009 years. Rodrigues et al (2003) reported that the average value of the NIR was 826 mm.…”

Section: Resultsmentioning

confidence: 99%

“…Estimation of crop water requirement on different crops and locations have also been reported in several previous studies. (Tan, 2018;Guo et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Forecasting of Long-term Sugar Beet Water Requirement in the Middle Anatolia, Turkey

Yamaç¹

2020

alinteri

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Turkey's highest sugar beet (Beta vulgaris L.) cultivation area is the Konya basin where is located in the Middle Anatolia region. Therefore, sugar beet has socioeconomic importance in this region. However, the area faces water scarcity due to less amount of precipitation and high evapotranspiration. Moreover, irrigation is a prerequisite for sugar beet cultivation. Therefore, irrigation management is a vital topic for the area. The Food and Agricultural Organization of the United Nations Penman-Monteith (FAO 56 PM) equation for estimating reference evapotranspiration (ETo) requires various meteorological data. Unfortunately, it is not possible to ease to reach all these input data. Hence, FAO56 proposes another method called Hargreaves-Samani (HS). In this study, due to limited meteorological data, the HS method is used for estimating ETo in the Konya basin. For this area, there is a big ambiguity about crop evapotranspiration (ETc) and the net irrigation requirement (NIR) for sugar beet crop. This study estimates long-term (1986-2015) sugar beet evapotranspiration and net irrigation requirement to give a better idea for sugar beet irrigation management in the Konya basin. Results show that long-term annual sugar beet ETc reaches between 657 mm and 917 mm in the growing season. NIR ranges from 614 mm to 886 mm in the aforesaid basin.

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“…The WFs of crops can provide an important guidance for the adjustment of agricultural structure in water scarce areas. Some other influential factors should also be considered in deciding the planting structures besides water factor, like planting conditions, farmers' habits, cultural and climatic change [60][61][62]. Therefore, the above suggestions from the perspective of the water footprint strategy may be limited.…”

Section: Discussionmentioning

confidence: 99%

Comprehensive Assessment of Water Footprints and Water Scarcity Pressure for Main Crops in Shandong Province, China

Guo

Wang

et al. 2019

Sustainability

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Rapid economic development has posed pressure on water resources, and the potential for a water crisis has become an important obstacle to the sustainable development of society. Water footprint theory and its applications in agriculture provide an important strategic basis for the rational utilization and sustainable development of water resources. Based on the monthly meteorological observations and agricultural data of Shandong Province, CROPWAT 8.0 and Geographic Information System (GIS) technology, the green, blue and grey water footprints of wheat, maize, cotton and groundnut from 1989 to 2016 were calculated and the spatial variations of water footprints for crops in different rainfall years were analyzed. Additionally, assessment of water stress for agricultural productions was conducted in this study. The results showed that the average water footprints of wheat, maize, cotton and groundnut were 2.02 m3/kg, 1.24 m3/kg, 7.29 m3/kg and 1.75 m3/kg, respectively in Shandong Province. A large amount of the average total water footprint was calculated for wheat (420.59 × 108 m3/yr), maize (222.16 × 108 m3/yr), cotton (72.70 × 108 m3/yr) and groundnut (50.07 × 108 m3/yr). The average total water footprint of the four crops was 765.52 × 108 m3/yr (29.98% blue) and exhibited a gradual decreasing trend over time. Specifically, the total water footprint of wheat was the highest among four main crops in Shandong Province and exhibited a decreasing trend during 1989–2016. The maize was ranked in the second place, and was the only crop still increasing rapidly. The spatial and temporal changes of water footprints for crops were obvious in different rainfall years. Additionally, agricultural productions in most regions were facing the threat of water scarcity. Therefore, the scientific planning of crop planting structures and rational control of sown areas of crops with large water footprints should be implemented in severely water-scarce regions. This study can give some suggestions on the adjustment of planting structure for the sustainable development of agriculture and the realization of efficient utilization of water resources.

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Risk Assessment of Regional Irrigation Water Demand and Supply in an Arid Inland River Basin of Northwestern China

Cited by 26 publications

References 16 publications

Analysis of Water Resources in Horqin Sandy Land Using Multisource Data from 2003 to 2010

Analysis of Water Resources in Horqin Sandy Land Using Multisource Data from 2003 to 2010

Forecasting of Long-term Sugar Beet Water Requirement in the Middle Anatolia, Turkey

Comprehensive Assessment of Water Footprints and Water Scarcity Pressure for Main Crops in Shandong Province, China

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