Irrigation Salinity Risk Assessment and Mapping in Arid Oasis, Northwest China

Seydehmet, Jumeniyaz; Lv, Guanghui; Abliz, Abdugheni; Shi, Qingdong; Abliz, Abdulla; Turup, Abdusalam

doi:10.3390/w10070966

Cited by 10 publications

(15 citation statements)

References 61 publications

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“…The secondary soil salinization is a very complex problem [8,[13][14][15]31,32]. Firstly, in order to make clear the mechanism of salinity hazards [8,9], this study built the socio-ecological and bio-physical conceptual models (Supplementary Materials) in the DPSIR frame [33] by a selected 39 variables [7,8,10,18,19,31,[34][35][36]. Secondly, collected spatial and cross sectional hydro-geological data from various sources, and based on the built hydrological baseline map ( Figure 7) to desalinization design.…”

Section: Methodsmentioning

confidence: 99%

“…To produce this mapin ArcGIS10.1, theLandsat-8 ETM+, GTOP30/DEM (resolution 30 m, cloud 0%, download date:21 July 2015) [37] were used for determine the thematic map of drainage, water bodies, river, farmland, basic landscape, contours, etc. [8,9],then the thematic map of salinization risk spatial distribution was produced from Seydehmet's study [9],finally, fold above together form the spatial hydro-geological map. The groundwater depth of 24 groundwater observation wells (sampling range of about 4-8 km, drilled in April 2012) were measured by using a HOBO barometric sensor.…”

Section: Spatial Hydro-geological Mapmentioning

confidence: 99%

“…The spatial distribution of the conceptual layout of desalinization for the water logging area in the Keriya Oasis, adapted from Seydehmet, J. [9]. Higher numbers indicate higher salinization intensity.…”

Section: Desalinization Design For the Water Logging Areamentioning

confidence: 99%

See 2 more Smart Citations

Landscape Design as a Tool to Reduce Soil Salinization: The Study Case of Keriya Oasis (NW China)

Seydehmet

Abliz

2019

Sustainability

Self Cite

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Irrational use and management of water and land are associated with poor hydro-geological conditions causing water logging and salinization problems, possibly leading to farmland abandonment and economic loss. This poses a great challenge to the sustainability of oasis’ and requires desalinization through reasonable landscape design by multiple crossing studies so we collected traditional knowledge by field interviews and literature schemes, except for the modern desalinization approaches by literature, and we found that the salinization problem has been solved by traditional land reclamation, traditional drainage, natural drainage and flood irrigation, locally. It is worth mentioning that the traditional reclamation in salinized areas requires flood water, sand dunes and a salinized pit area; the sand dunes are used to elevate the pit surface, and water is used to leach salt from the soil. Natural drainage (the depth and width are 4–10 m and 50–100 m, respectively) caused by flash flooding has significant benefits to some salinized villages in the range of 3000–5000 m and ancient groundwater drainage systems, such as Karez are supporting the oasis with drainage water for centuries. In addition landscape characteristics, salinization and hydro-geological conditions of the oasis were studied from Landsat image, DEM, literature and field photos. Then based on the gathered information above, a desalinization model was developed to decrease the groundwater table and salt leaching in the water logging landscape. Then according to landscape characteristics, different desalinization approaches were recommended for different landscapes. To address environmental uncertainties, an adaptive landscape management and refinement approach was developed, and acceptance of the model was validated by stakeholder opinion. The results provide guidelines for sustainable desalinization design and highlight the importance of combining traditional knowledge and modern ecological principles in sustainable landscape design.

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Section: Methodsmentioning

confidence: 99%

Section: Spatial Hydro-geological Mapmentioning

confidence: 99%

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Landscape Design as a Tool to Reduce Soil Salinization: The Study Case of Keriya Oasis (NW China)

Seydehmet

Abliz

2019

Sustainability

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“…The dependence of cultivated land on water resources determines that the per capita cultivated land area is a component of the vulnerability of working units. Per capita cultivated land area is closely related to the vulnerability of regional ecological environment [31]. The more the per capita arable land area, the more vulnerability the ecological environment, and the lower the per capita cultivated land area, the lower the vulnerability is, as shown in Table 5.…”

Section: E2 Per Capita Cultivated Land Area Imentioning

confidence: 99%

Risk Assessment of Upper-Middle Reaches of Luanhe River Basin in Sudden Water Pollution Incidents Based on Control Units of Water Function Areas

Xiao

Huang

Zhou

et al. 2018

Water

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Upper-middle reaches of Luanhe River Basin belongs to Haihe River Basin and it is a pretty important water source to North China, especially to Tianjin and Tangshan Cities, Hebei. Based on control units of the water function areas and the sub-basins the working units were produced. The index system for environmental risk source hazard was constructed by adopting the pressure state response (PSR) environmental analysis model. The environment risk sources are identified, and their hazard grade assessment is performed. In the environmental risk source hazard an assessment index system, namely “downstream characteristics of environmental risk sources” is added by taking the fact into account that environmental risk sources themselves are affected by different functional areas (working units) downstream of the rivers. Through collecting hazard data, determining their standards and weights for environment risk sources, the fuzzy comprehensive evaluation method is used to calculate the risk source hazard grades and the vulnerability grades of the working units. Using the one-dimensional exponential decay river model for pollutants in rivers, the hazard grade evaluation method of working units is established. This consists of two parts: (1) The risk source hazard grade of the working unit itself, and (2) the impact of the risk sources upstream on the working unit downstream of the rivers. Combining the hazard grade with the vulnerability grade of the working unit, the risk grade of the working unit is evaluated through the risk matrix. The risk zones of the watershed are realized by merging working units in the same control units of the water function areas with the same risk grades. The risk zoning of sudden water pollution incidents in the upper and middle reaches of Luanhe River Basin is obtained by applying the above risk zoning method. It is found that there are 55 risk zones in total, including three highest risk zones, 15 higher risk zones, 14 lower risk zones, 23 lowest risk zones. These results indicate that the upper and middle reaches of River Luanhe are overall at low risk. The corresponding management methods for the different risk zones are suggested.

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“…Sun (2018) and Cen (2015) et al built an evaluation indicator system for urban ecological safety from dimensions of urban population and landscape on the basis of the PSR framework, and used the system to evaluate the ecological safety of city agglomeration in Pearl River Delta and Hangzhou City [5][6]. Rapport (2013), Seydehmet (2018), and Shi (2018) designed an evaluation indicator system for ecological safety in ecological function areas from the perspectives of economic environment and social environment, and they evaluated the ecological safety in desert oasis ecological function areas in Xinjiang Province, China, and in urban mudflat ecological function areas in Shanghai City, China, by using their designed system [7][8][9]. However, since mining area is quite different from nonmining area, such as cities and ecological function areas that are scarcely influenced by three-waste management technology and mining technology, the evaluation indicators for ecological safety in such areas as cities are inapplicable to mining areas.…”

Section: State Of the Artmentioning

confidence: 99%

A Quantitative Scenario Analysis Method for Ecological Safety Development Trends in Rare Earth Mining Areas

Wang¹,

Liu²,

Ming-gui³

et al. 2019

JESTR

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Rare earth mining can cause ecological problems as a result of soil erosion and water pollution in local areas. Thus assessing the development trends of ecological safety is crucial in formulating the environmental protection policies in rare earth area. Rare earth mining is a long and complicated process in which the state values of evaluation indicators for ecological safety are dynamic and continual interplay. Hence, conventionally measured indicators are inadequate in this context. An evaluation method based on the theory of quantitative scenario analysis was proposed in this study to analyze ecological safety development trends in rare earth mining areas. First, according to the PSR model framework, six indicators including "mining technology", "mining intensity", "water environment", "soil environment", "waste water, waste gas and waste residue management technologies" and "environmental protection policy", were selected to reveal the ecological safety in mining areas. Second, the crossover probability algorithm, Markov chain and nonlinear programming were utilized to construct a quantitative scenario analysis model for ecological safety development trends. Lastly, the model was verified using the data on Lingbei rare earth mining area located in Ganzhou City, China. Results showed that the quantitative scenario analysis model could be used to calculate the changes in various indicators, their cross impacts in the development process and the occurrence probability of scenario combinations for ecological safety development that were composed of the state changes of each indicator. These findings indicate that the proposed model can effectively and accurately forecast the ecological safety development trends in rare earth mining areas. The conclusions can provide a theoretical basis for environmental protection work in rare earth mining areas.

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Irrigation Salinity Risk Assessment and Mapping in Arid Oasis, Northwest China

Cited by 10 publications

References 61 publications

Landscape Design as a Tool to Reduce Soil Salinization: The Study Case of Keriya Oasis (NW China)

Landscape Design as a Tool to Reduce Soil Salinization: The Study Case of Keriya Oasis (NW China)

Risk Assessment of Upper-Middle Reaches of Luanhe River Basin in Sudden Water Pollution Incidents Based on Control Units of Water Function Areas

A Quantitative Scenario Analysis Method for Ecological Safety Development Trends in Rare Earth Mining Areas

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