Agricultural Oasis Expansion and Its Impact on Oasis Landscape Patterns in the Southern Margin of Tarim Basin, Northwest China

Liu, Yi; Xue, Jie; GUI, Dongwei; Lei, Jiaqiang; Sun, Huaiwei; Lv, Guanghui; Zhang, Zhiwei

doi:10.3390/su10061957

Cited by 28 publications

(16 citation statements)

References 38 publications

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“…It is usually calculated through topographic maps or represented by the distance from land to road or market [46,47], and the impact of accessibility on land use is expressed by road accessibility and the impact degree of centre town. Human activities shape the natural landscape into a regular rectangular with distinct edges and corners, especially the agricultural land, and different sizes of plots form a checkerboard shape [27,48,49], a large number of studies have shown that agricultural land regulation can help improve land use efficiency [50][51][52].…”

Section: Construction Of Cultivated Land Evaluation Systemmentioning

confidence: 99%

Comprehensive Evaluation of Cultivated Land Quality at County Scale: A Case Study of Shengzhou, Zhejiang Province, China

Tan

Chen

Lian

et al. 2020

IJERPH

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The existing evaluation system of cultivated land quality mainly considers the natural quality and utilisation conditions, but without sufficient emphasis on ecological environment, which can’t meet the requirements of the trinity pattern protection policy. This study, using GIS spatial analysis and multifactor comprehensive evaluation method, constructed a comprehensive evaluation index system, and applied it in Shengzhou. The results show that: (1) under the comprehensive evaluation system, the quality of cultivated land was classified into five levels and revealed normal distribution with the third level cultivated land area as the peak, successive reduction to the two poles, and the overall quality was good relatively; (2) A close relationship was observed between the quality grade of cultivated land and the landform, the valley plain with highest cultivated land quality was the main grain-producing areas. However, the cultivated land in mountainous areas was poor relatively, and vulnerable to geological disasters; (3) The quality grade of cultivated land was related to economical activities directly. The high-quality cultivated land resources made these towns the main grain-producing areas with many agricultural industries distribution. This study provided a new assessment approach that can support cultivated land grading, quality improvement, and sustainable usage, as well as providing a reference for related research and application.

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Section: Construction Of Cultivated Land Evaluation Systemmentioning

confidence: 99%

Comprehensive Evaluation of Cultivated Land Quality at County Scale: A Case Study of Shengzhou, Zhejiang Province, China

Tan

Chen

Lian

et al. 2020

IJERPH

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“…Governing hydrologic processes in the mountains and desert can be described as precipitation-runoff and runoff-evaporation, respectively (Han et al 2009). For the majority of the years from 1960 to 2010 in the Cele Oasis, the annual precipitation is < 50 mm (Cheng 1997;Li et al 2011;Liu et al 2018;Zhou et al 2018) and pan evaporation is in the range of 2100-3400 mm (Fig. 2).…”

Section: Surface Watermentioning

confidence: 99%

“…Water is essential to the formation and sustainment of oases in arid environments . Oases, naturally thriving yet fragile systems, have increasingly become locations of human habitation and modification (Ling et al 2013;Liu et al 2018). With essentially no other obtainable natural resources besides semi-fertile soil and water, agriculture is the predominant transformation to many oases (Song and Zhang 2015).…”

Section: Introductionmentioning

confidence: 99%

“…The Cele Oasis located along the southern rim of the Taklimakan Desert is typical of oases in the region. Since some of the earliest records in 1956, the Cele Oasis has expanded its agricultural footprint at a moderate pace (by a factor < 2.7) as compared with other oases in the area (Tian and Song 1997;Bruelheide et al 2003;Qi et al 2005;Xue et al 2016;Liu et al 2018). One might conclude that this transformation by most oases (termed "oasification") has resulted in desertification; however, the Taklimakan Desert has witnessed a reversal due to rehabilitation efforts (Wang et al 2008;Zhang et al 2017).…”

Section: Introductionmentioning

confidence: 99%

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Assessing water distribution and agricultural expansion in the Cele Oasis, China

Waldron

GUI

Liu

et al. 2020

Environ Monit Assess

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Oases support 90% of the province's inhabitants and produce more than 95% of the social wealth in Xinjiang Province of China. Oases' dependency on water availability from mountainous regions plays a critical factor in the sustainability of agricultural practices and oasis expansion. In this study, we have chosen the Cele Oasis located in the south rim of the Taklimakan Desert, typical of oases in the region, as a case study to examine water availability. With over 97% of Cele's economy tied to agriculture, unfettered expansion of the oasis into the desert has raised concern on water availability. A spatial and temporal analysis of water availability is performed using newly available data to determine whether agricultural production within the Cele Oasis has overexploited available water resources or if feasible expansion of agricultural production is feasible beyond its current boundary. Transferability of the methodology for assessing water availability spatially and temporally will be beneficial to other oases in the arid region that face similar concerns.

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“…The Cele Oasis is a hyper-arid zone in northwest China that receives very little rainfall. As the cropland expands rapidly in oasis in China [27], it is interesting to explore the best groundwater management practices in Cele Oasis. This, in result, may also inspire better water management in similar regions.…”

Section: Introductionmentioning

confidence: 99%

A Mixed Integer Linear Programming Method for Optimizing Layout of Irrigated Pumping Well in Oasis

Wang

Liu

et al. 2019

Water

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Optimization of irrigation well layout plays a vital role in the rational utilization of groundwater and to balance the water-energy nexus, especially in arid irrigation districts. This study proposes the mixed integer linear programming model (MILP) for well layout optimization with minimum well irrigation costs. This model efficiently establishes a link between irrigation area and wells to express the constraints of ensuring that irrigation area can be covered with optimal wells by using grid points to represent the irrigation area. It also uses the special ordered sets (SOS) modeling tool to decompose the mixed integer nonlinear programming into a mixed integer linear programming by assigning SOS-constrained weights to discrete points of a nonlinear function. This method was used in Cele Oasis of the Tarim Basin of the Xinjiang Province, an arid region in northwestern China. Since the original well layout was already established, different economic criteria like implicit cost and explicit cost were considered and two optimization results were yielded. The results showed that (1) the implicit cost optimization (ICO) and explicit cost optimization (ECO) reduced total costs by 7.64% and 3.56% compared with the condition of without optimization; and (2) the ICO and ECO reduced the optimal number of wells by 52.89% and 10.74% compared with the existing number of wells. Based on the analysis of the results, it is suggested that the manager should close uneconomical wells after determining the economic criteria. This method for well layout optimization can assist managers to make more rational plans for irrigation systems to exploit groundwater more efficiently, economically, and in a more environmentally friendly manner.

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Agricultural Oasis Expansion and Its Impact on Oasis Landscape Patterns in the Southern Margin of Tarim Basin, Northwest China

Cited by 28 publications

References 38 publications

Comprehensive Evaluation of Cultivated Land Quality at County Scale: A Case Study of Shengzhou, Zhejiang Province, China

Comprehensive Evaluation of Cultivated Land Quality at County Scale: A Case Study of Shengzhou, Zhejiang Province, China

Assessing water distribution and agricultural expansion in the Cele Oasis, China

A Mixed Integer Linear Programming Method for Optimizing Layout of Irrigated Pumping Well in Oasis

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