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黄土高原丘陵沟壑区高标准农田建设时序研究——以天水市麦积区为例 被引量:5
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作者 陈英 王东 王顺然 《浙江农业学报》 CSCD 北大核心 2017年第4期660-667,共8页
以天水市麦积区为例,从自然质量条件、工程建设条件、景观生态条件3方面,选取评价建设高标准农田建设时序的关键性指标,提出"整体参与综合评价、耕地质量存在差异、工程建设先易后难"的建设时序评价原则,并结合综合评价系数... 以天水市麦积区为例,从自然质量条件、工程建设条件、景观生态条件3方面,选取评价建设高标准农田建设时序的关键性指标,提出"整体参与综合评价、耕地质量存在差异、工程建设先易后难"的建设时序评价原则,并结合综合评价系数法及自然断点法确定麦积区高标准农田建设时序。结果表明,麦积区高标准农田建设时序近期、中期、远期整治区面积分别占区内耕地总面积的17.54%、51.87%、30.59%。研究结果可为麦积区及丘陵沟壑区高标准农田建设安排和政府决策提供借鉴。 展开更多
关键词 高标准农田 时序 综合评价系数法 麦积区
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A new approach for selecting best development face ventilation mode based on G1-coefficient of variation method 被引量:14
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作者 ZHOU Zhi-yong Mehmet KIZIL +1 位作者 CHEN Zhong-wei CHEN Jian-hong 《Journal of Central South University》 SCIE EI CAS CSCD 2018年第10期2462-2471,共10页
The current popular methods for decision making and project optimisation in mine ventilation contain a number of deficiencies as they are solely based on either subjective knowledge or objective information.This paper... The current popular methods for decision making and project optimisation in mine ventilation contain a number of deficiencies as they are solely based on either subjective knowledge or objective information.This paper presents a new approach to rank the alternatives by G1-coefficient of variation method.The focus of this approach is the use of the combination weighing,which is able to compensate for the deficiencies in the method of evaluation index single weighing.In the case study,an appropriate evaluation index system was established to determine the evaluation value of each ventilation mode.Then the proposed approach was used to select the best development face ventilation mode.The result shows that the proposed approach is able to rank the alternative development face ventilation mode reasonably,the combination weighing method had the advantages of both subjective and objective weighing methods in that it took into consideration of both the experience and wisdom of experts,and the new changes in objective conditions.This approach provides a more reasonable and reliable procedure to analyse and evaluate different ventilation modes. 展开更多
关键词 development face ventilation G1 method coefficient of variation method comprehensive evaluation OPTIMIZATION
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