Comprehensive assessment of regional selenium resources in soils based on the analytic hierarchy process: Assessment system construction and case demonstration

Liang, Ruoyu; Shi, Song; Shi, Yajing; Shi, Yunfeng; Lü, Yonglong; Zheng, Xiaoqi; Xu, Xiaofang; Wang, Yurong; Han, Xuesong

doi:10.1016/j.scitotenv.2017.06.150

Cited by 19 publications

(4 citation statements)

References 28 publications

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“…Then, the Analytic Hierarchy process will be used to determine the weight of each index. (Table 1) [51,52]. As for determination of the scores of the indexes at each level, please see Table S1 in the Supplementary Materials.…”

Section: The Construction Of An Index System and Identification Of Weightsmentioning

confidence: 99%

The Spatial Distribution Characteristics of the Cultivated Land Quality in the Diluvial Fan Terrain of the Arid Region: A Case Study of Jimsar County, Xinjiang, China

Sheng

Liu

et al. 2021

Land

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Environmental constraints are not only important aspects that affect the cultivated land quality but also necessary factors that shall be considered when evaluating the cultivated land quality scientifically. Moreover, identifying the quality condition of cultivated land accurately is the premise for guaranteeing food security. Based on the case study of diluvial fan terrain in Jimsar County, Xinjiang in the arid region of Northwest China, this study utilizes a geographic information system spatial analysis and a multifactor comprehensive evaluation method and constructs a comprehensive evaluation index system for cultivated land quality on account of three dimensions, namely soil properties, farming conditions, and natural environmental conditions. To reduce the Modifiable Areal Unit Problem (MAUP) effect and improve the accuracy of the quality evaluation results of cultivated land, this study compares the spatial interpolation methods of Inverse Distance Weighted Matrix (IDW), Ordinary Kriging (OK), and Spline Functions (Spline) based on different cultivated land evaluation units. Through the assessment on the comparison results, we finally adopted large-scale cultivated land as the quality evaluation unit of cultivated land and Ordinary Kriging (OK) as the spatial interpolation method. The results indicated that the average grade of the quality index of cultivated land in the diluvial fan terrain of Jimsar County is 6.66 at the middle or lower level; the quality of cultivated land and natural environment conditions reduce with the rise of elevation of the diluvial fan terrain, indicating a vertical zonality differentiation rule; the farming conditions keep sliding from the middle part of diluvial fan terrain to the edge of the diluvial fan terrain and the piedmont slope. The major factors affecting the quality of the cultivated land include the soil capacity, soil pH, soil organic matter, the quantity of straw returning to the field, source of irrigation water, water delivery method, part of the diluvial fan, groundwater level depth, and geomorphic type. Therefore, the measures to improve the quality of the cultivated land are put forward, mainly including improving the soil, carrying out land consolidation projects, and developing highly efficient water-saving irrigation agriculture. This study provides favorable references and directions for the sustainable utilization and quality improvement of cultivated land resources in arid regions.

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Section: The Construction Of An Index System and Identification Of Weightsmentioning

confidence: 99%

The Spatial Distribution Characteristics of the Cultivated Land Quality in the Diluvial Fan Terrain of the Arid Region: A Case Study of Jimsar County, Xinjiang, China

Sheng

Liu

et al. 2021

Land

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“…The results of the four indicators are summarized in Table.2. It is di cult to carry out comprehensive analysis and evaluation when applying multi-indicators assessment, because of the different dimensions of indicators and the value of different indicators [21]. Therefore, the data of each evaluation indicator needed to be dimensionless, as shown in Table.2.…”

Section: Measured Data Of Assessment Indicatorsmentioning

confidence: 99%

The design optimization of Chinese medicinal compound for the treatment of co-infection of Mycoplasma gallisepticum and Escherichia Coli

Fan

Bao

et al. 2020

Preprint

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Background: A new Chinese medicinal compound including Isatdis Radix, Forsythiae Fructus, Mori Cortex, Ginkgo Folium, Licorice and Radix Salviae was pre-screened through the method of network pharmacology for the treatment of co-infection of Mycoplasma gallisepticum and Escherichia Coli. While, the optimal combination of Chinese medicine is still an obstacle to the development of the Chinese medicinal compound.Results: A multi-indicators evaluation method was used in this study to establish a comprehensive assessment system based on the minimal inhibitory concentration of Mycoplasma gallisepticum and Escherichia Coli in vitro, air sac and tracheal lesion scores in vivo. We used the min-max normalization method to normalize the scores of the four metrics and gave them the same proportion of weights to calculate the total score. Then, according to the method of uniform test, the six-factor ten-level experiment (U*10(106) was designed, with the total score as the index. The multi-nonlinear regression equation was established by data processing system according to the comprehensive index. The results showed that the ratio of Isatdis Radix, Forsythiae Fructus, Ginkgo Folium, Mori Cortex, Licorice and Radix Salviae were 14:7:11:12:5:3, which showed effective treatment. Conclusions: It turned out that uniform design can be effectively used to solve dose optimization for combined use of multiple compounds. In addition, this study also proposes a new method to comprehensively evaluate medicinal compounds for respiratory diseases such as Mycoplasma gallisepticum and Escherichia Coli infection.

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“…There are two main types of methods to determine the weight of indices: the subjective assignment method and objective assignment method [ 12 , 16 ]. The subjective weighting method is a method to determine weights based on people's subjective opinions, such as the Delphi method, binomial coefficient method, Analytic Hierarchy Process (AHP), and so on [ 17 , 18 ]. It is superficial but subjective and arbitrary.…”

Section: Introductionmentioning

confidence: 99%

River Ecosystem Health Assessment Using a Combination Weighting Method: A Case Study of Beijing Section of Yongding River in China

Chen

Jiji

et al. 2022

IJERPH

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(1) Background: River health assessment provides the foundation for sustainable river development and management. However, existing assessments have no uniform standards and methods. (2) Methods: The combination weighting method was proposed, drawing on the advantages of subjective and objective weighting methods. To comprehensively investigate the river health level, an index system based on 16 indices selected from river morphology, river water environment, riparian condition, and social services level was established. The method and framework were applied to the Beijing section of Yongding River in China. (3) Results: The comprehensive weights of river morphology, river water environment, riparian condition, and social services are 0.1614, 0.3170, 0.4459, and 0.0757, respectively. The river health comprehensive index of Yongding River is 3.805; the percentages of excellent, healthy, sub-healthy, unhealthy, and sick river segments are 0%, 11%, 69%, 20%, and 0%, respectively. (4) Conclusions: The results indicate that Yongding River is in a sub-healthy state, and the riparian condition is the key factor that affects the river ecosystem health. Health level exhibited a remarkable spatial variation, mainly influenced by anthropogenic activities, and effective measures are needed to minimize the impact in fragile ecological areas.

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Comprehensive assessment of regional selenium resources in soils based on the analytic hierarchy process: Assessment system construction and case demonstration

Cited by 19 publications

References 28 publications

The Spatial Distribution Characteristics of the Cultivated Land Quality in the Diluvial Fan Terrain of the Arid Region: A Case Study of Jimsar County, Xinjiang, China

The Spatial Distribution Characteristics of the Cultivated Land Quality in the Diluvial Fan Terrain of the Arid Region: A Case Study of Jimsar County, Xinjiang, China

The design optimization of Chinese medicinal compound for the treatment of co-infection of Mycoplasma gallisepticum and Escherichia Coli

River Ecosystem Health Assessment Using a Combination Weighting Method: A Case Study of Beijing Section of Yongding River in China

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