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Characteristics of Hypertension Death in Low-income Regions of Inner Mongolia, China 被引量:2
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作者 YU Di DU Mao Lin +15 位作者 SUN De Jun QIAO Su Fang MA Yu Jia Wang Li GAO Yu Min CHEN Yong Sheng MENG Yong Liang SUN Xiao Ling GUO Wen Fang WANG Qing Xia ZHANG Hai Rong LI Wu Yun Ta Na JIA Lei HAO Jing ZHAO Neng Jun SUN Juan 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 2020年第1期53-57,共5页
Hypertension has been a major risk factor for cardiovascular disease[1].Hypertension overall prevalence in adults is 30%–45%,becoming>60%in people aged above 60 years[2],with a worldwide agestandardised prevalence... Hypertension has been a major risk factor for cardiovascular disease[1].Hypertension overall prevalence in adults is 30%–45%,becoming>60%in people aged above 60 years[2],with a worldwide agestandardised prevalence of 20 and 24%in women and men,respectively[3]. 展开更多
关键词 CHARACTERISTICS HYPERTENSION DEATH LOW-INCOME regionS inner mongolia China
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Does empowering women benefit poverty reduction?Evidence from a multi-component program in the Inner Mongolia Autonomous Region of China 被引量:1
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作者 GU Rui NIE Feng-ying 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2021年第4期1092-1106,共15页
Ending poverty is a top priority of the international development agenda,and governments worldwide have attached great importance to poverty alleviation measures.However,poverty reduction policies have mostly focused ... Ending poverty is a top priority of the international development agenda,and governments worldwide have attached great importance to poverty alleviation measures.However,poverty reduction policies have mostly focused on men,which has widened the gap in productivity and income between men and women and increased gender inequality.This paper aims to determine the impacts of a multi-component program on women's empowerment and poverty reduction,and explore the role empowered women play in poverty reduction.The dataset used in this study was collected in nine poor counties of Ulanqab City in the Inner Mongolia Autonomous Region of China at the end of 2014,yielding a sample of 900 households.Recall questions were used to reconstruct the baseline data and build a panel dataset.Smaller groups of rural households were further identified to better target the women in the beneficiary group.To control the selection bias,propensity score matching,inverse probability weighting,and the difference-in-differences matching method were used to analyze the effect of the program and undertake robust checks.The results show that the program has positive effects on women's empowerment and poverty reduction simultaneously.Empowering women also has positive effects on poverty reduction,and the women who were the beneficiaries have contributed to increasing the incomes and living standards of households.Training,microfinance,and associations are common means or strategies to empower women to address poverty.This paper provides new empirical evidence that women can benefit from a gender-focus program through portfolio intervention such as training,cooperatives,and credit.Empowered women further improve the livelihoods of poor households and help lift them out of poverty.The results suggest that researchers and policymakers need to pay more attention to poverty issues from the perspective of gender. 展开更多
关键词 WOMEN EMPOWERMENT poverty reduction inner mongolia Autonomous region
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First record of Early Cretaceous pterosaur from the Ordos Region, Inner Mongolia,China 被引量:2
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作者 Shu-an Ji 《China Geology》 2020年第1期1-7,共7页
A new dsungaripterid pterosaur,Ordosipterus planignathus gen.et sp.nov.,is established on the incomplete articulated lower jaws from the Lower Cretaceous Luohandong Formation in Otog Qi,Ordos Region,Inner Mongolia,Chi... A new dsungaripterid pterosaur,Ordosipterus planignathus gen.et sp.nov.,is established on the incomplete articulated lower jaws from the Lower Cretaceous Luohandong Formation in Otog Qi,Ordos Region,Inner Mongolia,China.It differs from other dsungaripterids mainly by having broad and low dentary at and just behind the mandibular symphysis,flat dentary dorsal plane forming the distinct lateral ridge with the curved dentary lateral side,and lower alveoli arranged along the dentary dorsolateral margin with wide spacing that increases from rostral to caudal.It represents the first diagnostic pterosaur from the Ordos Region in Inner Mongolia,and further enlarges the geographical distribution of the family Dsungaripteridae from northwestern China(together with western Mongolia)to central North China. 展开更多
关键词 PTEROSAURIA Early Cretaceous Ordos region inner mongolia China
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Further development and sustainable utilization mode of grassland tourism resources: a case study of Inner Mongolia Autonomous Region, China 被引量:3
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作者 Liu Min Liu Aili Chen Tian 《Ecological Economy》 2007年第2期190-201,共12页
Tourism resources are important foundation for the development of tourism industry.Grassland is not only a kind of important resource but also a great attraction to visitors.Therefore,the integrated development and su... Tourism resources are important foundation for the development of tourism industry.Grassland is not only a kind of important resource but also a great attraction to visitors.Therefore,the integrated development and sustainable utilization of grassland tourism resources are of great significance.This paper,based on the analysis of literatures and the current problems existing in grassland tourism,summarizes the speciality of grassland tourism development,deals nation as example and carries out empirical research.Based on the status quo of grassland tourism resources in Inner Mongolia,this study analyzes the characteristics of grassland tourism resources,the necessity and feasibility of integrated development,then proposes the following suggestions: idea for development,mode of development,regional cooperation,tourism products development,especially the three modes of development based on the resources conditions - the mode of relying on market,the mode of combination aggregation and the mode of relying on quality. 展开更多
关键词 Grassland tourism resources Integrated development Sustainable utilization inner mongolia autonomous region
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Molecular Biomarker Characteristics of the Linxi Formation Source Rocks in the Middle-Western Region of Inner Mongolia:New evidence for late-stage tectonic evolution of the Paleo-Asian Ocean 被引量:1
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作者 ZHANG Yongsheng PENG Yuan +3 位作者 SHI Lizhi XING Enyuan GUI Baolin LI Kai 《Acta Geologica Sinica(English Edition)》 SCIE CAS CSCD 2017年第2期745-746,共2页
Objective Two important geological issues have long been controversial in the Xing-Meng area of North China. The first concerns the final closure of Paleo-Asian Ocean in Xing-Meng area, and the other concerns the fol... Objective Two important geological issues have long been controversial in the Xing-Meng area of North China. The first concerns the final closure of Paleo-Asian Ocean in Xing-Meng area, and the other concerns the folding and lifting of the Xing-Meng Trough. The focus of thses issues is the Late Permian sedimentary environment, which is generally considered to be either an exclusively continental environment or from the closed inland sea environment in the Early to Middle stage to continental lacustrine environment in the late stage. In recent years, we have successively discovered abundant typical marine fossils (e.g., bryozoans and calcareous algae) in the Upper Permian thick limestone layer from Linxi County and Ar Horqin Banner in eastern region of Inner Mongolia and Jiutain County in Jilin Province. These significant findings have attracted the attention from fellow academics. 展开更多
关键词 In As Molecular Biomarker Characteristics of the Linxi Formation Source Rocks in the Middle-Western region of inner mongolia:New evidence for late-stage tectonic evolution of the Paleo-Asian Ocean
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Income and Expenditure of the Herdsman in Inner Mongolia Autonomous Region: A Case Study of Xianghuang Banner in Xilin Gol League 被引量:1
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作者 LI Peng YANG Ting-ting +2 位作者 SHI Hong-xiao WU Xin-hong Qin Yan 《Asian Agricultural Research》 2012年第9期36-39,45,共5页
Based on the household survey data concerning herdsmen's families in Xianghuang Banner, Xilin Gol League, Inner Mongolia, we analyze the income and consumption structure of herdsmen's families in the western r... Based on the household survey data concerning herdsmen's families in Xianghuang Banner, Xilin Gol League, Inner Mongolia, we analyze the income and consumption structure of herdsmen's families in the western regions during the period 2008-2009. The results show that the herdsman's source of income is single, mainly focusing on livestock sale, with poor ability to resist risks; the share of purchase expenses of forage in the consumer spending is the greatest, growing rapidly, followed by spending on food, education and health care; there are many policy subsidies for housing. The characteristics of herdsman's income and consumption are jointly determined by natural factors, market factors, policy factors and personal factors. Based on this, corresponding recommendations are put forth in order to increase herdsman's income and improve the consumption structure: the herdsman should strengthen breeding techniques to improve scientific breeding and increase income, change consumer attitudes, save moderately, and strengthen ability to resist risks; the government should increase the policy subsidies for pastoral areas, strengthen education, training, health care for herdsman, and promote herdsman's quality. 展开更多
关键词 HERDSMAN Source of INCOME CONSUMPTION structure In
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Study on the Moment Magnitude of Small and Moderate Earthquakes Located in the Inner Mongolia Region
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作者 Liu Fang Zhang Fan +1 位作者 Li Bin Na Re 《Earthquake Research in China》 CSCD 2018年第1期53-63,共11页
Based on digital seismic waveform data from Inner Mongolia Digital Seismic Network,the source spectrum parameters of 182 small and moderate earthquakes from January,2009to September,2016 are derived,and the seismic mo... Based on digital seismic waveform data from Inner Mongolia Digital Seismic Network,the source spectrum parameters of 182 small and moderate earthquakes from January,2009to September,2016 are derived,and the seismic momentmoment magnitude MW of the earthquakes are calculated.Theand the relationship between stress drop and magnitude are obtained using the linear regression method.It is clear that incorporating the moment magnitude into the seismic quick report catalog and the official earthquake catalog can enrich earthquake observation report content,thus providing better service for earthquake emergency and earthquake scientific research. 展开更多
关键词 The central and western regions of inner mongolia SMALL and MODERATE earthquake MOMENT MAGNITUDE Seismic MOMENT
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Behavior Analysis of Self-Driving Tourists Based on Content Analysis of Network Travel Notes: A Case Study of the Inner Mongolia Autonomous Region
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作者 HAN Dong TANG Jia +1 位作者 HUANG Lihua JIA Lei 《Journal of Landscape Research》 2018年第4期138-144,共7页
Self-diiviiig tour is one of the most important wajrs for people to travel, and network travel notes actually reflect the traveling information of self-driving tourists. In this paper, witii the network travel notes o... Self-diiviiig tour is one of the most important wajrs for people to travel, and network travel notes actually reflect the traveling information of self-driving tourists. In this paper, witii the network travel notes of self-driving tourists as the tesearch object^ methods such as text analysis and visualization were adopted to study behavior patterns of self-driving tourists, tourism experience, time-space migration, and distribution of tourism resources in Inner Mongolia, fi:om the multiple dimensions of mobile drivers, perceived, dimensions, and spatial migration. The results showed tiiat ①self-cidviiig tourists had a variety of motivations for traveling, in which love for nature dominated; ②self-driving tour destinations were mainly Hulunbuir, Ordos, and Alxa League; ③spatial migration was characterized by obvious seasonal fluctuations. The fesearch on the behavior of self-driving tourists in Inner Mongolia is an important part of the study of the connection between tourism resources and market connection in Inner Mongolia, and is of significance for guiding the theory, practice and poliqr foimuktion of self-doving tours in Inner Mongolia. 展开更多
关键词 Self-driving tour Tourists behavioia inner mongolia Autonomous region
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Impacts of Sand and Dust Storms on Regional Economy Based on Stochastic CGE Model : A Case Study in Inner Mongolia, China
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作者 Xinjiletu YANG Yanwei YUE +2 位作者 Weihong HAN Huiyan YIN Chunyan MAO 《Asian Agricultural Research》 2022年第11期48-55,61,共9页
[Objectives]The paper was to study the impacts of sand and dust storms(SDS)on regional economy.[Methods]In this paper,we combined the computable general equilibrium(CGE)model and the Monte Carlo method to examine the ... [Objectives]The paper was to study the impacts of sand and dust storms(SDS)on regional economy.[Methods]In this paper,we combined the computable general equilibrium(CGE)model and the Monte Carlo method to examine the impact of SDS on the regional economy,with a focus on GDP,price index,employment rate,industrial structure and output,income and expenditure.We extended the standard CGE model,introduced the stochastic parameters into the production module,which had significant impact on economic output,and inserted the rate of change of the total labor supply and the expenditure share of early warning and protective measures into the income and expenditure module.[Results]SDS had significant impacts on regional GDP,employment rate,and industrial output from a macro perspective,and can reduce the income of residents and enterprises and increase expenditures from a micro perspective.The impact can be reduced by taking early warning and protective measures.[Conclusions]The protective measures taken for different grades of SDS have different effects. 展开更多
关键词 Stochastic CGE Sand and dust storm(SDS) regional economy inner mongolia
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Cultural Events in the Inner─Mongolia Autonomous Region in 1999
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《China & The World Cultural Exchange》 1999年第2期48-48,共1页
关键词 Cultural Events in the inner mongolia Autonomous region in 1999
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Study on Eco-environmental Stress Trend of Inner Mongolia Based on Ecological Stress Index 被引量:1
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作者 HAO Chen-guang SHAN Wen-guang 《Meteorological and Environmental Research》 CAS 2012年第3期57-60,64,共5页
[Objective] The study aimed to analyze the eco-environrnental stress trend of Inner Mongolia using ecological stress index method. [Methed] On the basis of the improved ecological stress index (ESI) analysis method,... [Objective] The study aimed to analyze the eco-environrnental stress trend of Inner Mongolia using ecological stress index method. [Methed] On the basis of the improved ecological stress index (ESI) analysis method, the eco-environmental stress trend of Inner Mongolia from 1996 to 2009 was analyzed, as well as the changes of eco-environmental stress in major industrial cities of Inner Mongolia in 2008. [ Result] With the economic development of Inner Mongolia from 1996 to 2009, the U-shape change could be found in the eco-environmental stress, showing an upward trend on the whole, especially since 2003, and there was a sharp raise in the environmental pollution index. In addition, the eco-enviren- mental stress lessened in most major cities of Inner Mongolian in 2008, but it was in a polarization state, that is, Baotou, Wuhai and Hohhot biased resource and energy consumption, while Ordos and Chifeng biased environmental pollution. [ Conclusion] The research could provide scientific ref- erences for the protection of ecological environment and the adjustment of industrial structure in Inner Mongolia. 展开更多
关键词 Eco-environmental stress regional economy Resource and energy consumption Environmental pollution inner mongolia China
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Opportunities of Inner Mongolia's economic development under the background of the “Silk Road Economic Belt” 被引量:1
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作者 XU Jie 《Ecological Economy》 2016年第1期94-100,共7页
"The Silk Road Economic Belt" is a great strategic thought, through which China deepens allround reform and opening up, especially in the major move of opening up to the west. Inner Mongolia autonomous regio... "The Silk Road Economic Belt" is a great strategic thought, through which China deepens allround reform and opening up, especially in the major move of opening up to the west. Inner Mongolia autonomous region owns the superior geographical position and was closely related to the Silk Road in ancient times. In the new stage, Inner Mongolia autonomous region should seize the opportunity of the development strategy, and strive to develop economic construction under the background of the belt of Prairie Silk Road, and play an important role in the economic belt of the "Prairie Silk Road". 展开更多
关键词 "Silk ROAD Economic belt" inner mongolia Autonomous region the PRAIRIE SILK ROAD op portunity strategy
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The Crustal Velocity Structure of Western Inner Mongolia
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作者 Zhao Yanhong Jia Xiye 《Earthquake Research in China》 CSCD 2018年第1期89-99,共11页
The terrain of Inner Mongolia is long and narrow, and the geological structure is complicated. The South China crustal velocity model and Inner Mongolias optimal crustal velocity model 2015 cannot fully meet the ear... The terrain of Inner Mongolia is long and narrow, and the geological structure is complicated. The South China crustal velocity model and Inner Mongolias optimal crustal velocity model 2015 cannot fully meet the earthquake location requirements of Inner Mongolia. Based on the seismological observations produced by Inner Mongolia Seismic Digital Network from 2009 to 2016,the initial model was obtained by using the linear fit of the seismic phases and the converted travel time curve. The Hyposat results of 225 earthquakes that occurred in western Inner Mongolia were scanned using this model,and the velocity model for western Inner Mongolia was determined as follows: V1= 6. 06 km/s;VPb= 6. 61 km/s; Vn= 8. 12 km/s; H1= 30 m; and the Moho depth H = 44 km. Comparison of the test results of the new model and the reference model shows that the residual error of the new model and the mean deviation of the epicenter location have obviously decreased. 展开更多
关键词 inner mongolia region South China CRUSTAL VELOCITY MODEL Optimal CRUSTAL VELOCITY MODEL of 2015 WESTERN inner mongolia CRUSTAL VELOCITY MODEL
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Sensitivity of livelihood strategy to livestock production and marketization:An empirical analysis of grasslands in Inner Mongolia,China
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作者 Saheed Olaide JIMOH DING Wenqiang +4 位作者 DONG Haibin BAI Haihua YIN Yanting LIU Huihui HOU Xiangyang 《Regional Sustainability》 2021年第4期363-374,共12页
Recent researches have primarily focused on the relationship between livelihood strategies and livelihood capital,with few empirical studies on the sensitivity of livelihood strategies to livestock production and mark... Recent researches have primarily focused on the relationship between livelihood strategies and livelihood capital,with few empirical studies on the sensitivity of livelihood strategies to livestock production and marketization in Inner Mongolia Autonomous Region of China.This study used an income distribution approach to categorize livelihood strategies of the respondents(n=394)into three types,i.e.,herder livelihood strategy(LS1),petty-herder livelihood strategy(LS2),and non-herder livelihood strategy(LS3).Using the multinomial logistic regression model,we compared livestock production and marketization across the three livelihood strategies.Our findings showed that(1)livestock production and marketization tended to favor LS1;(2)an increase in the land asset(contracted and rented grassland)and off-take rate increased the probability of households choosing LS1;(3)stocking rate was higher for LS1;and(4)the higher critical market-related risks perceived by herders were animal price and hay and corn price.Moreover,higher livestock price acted as a deterrent to diversifying into other livelihood strategies(LS2 and LS3).Finally,this study advocates for policies that will promote the land transfer market,adopt modern techniques in animal husbandry,improve the medium for disseminating market information to herders,and provide incentives for long-term livelihood transformation. 展开更多
关键词 Livelihood strategy Livestock production MARKETIZATION Livelihood diversification GRASSLAND inner mongolia Autonomous region
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The Fourth Tourism Ministerial Conference of China,Russia and Mongolia Held in Inner Mongolia
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作者 Zheng Siming 《China & The World Cultural Exchange》 2019年第7期9-9,共1页
On June 23,the Fourth Tourism Ministerial Conference of China,Russia and Mongolia was held in Ulanqab,a city in the Inner Mongolia Autonomous Region?At the Conference,the representatives of the three countries shared ... On June 23,the Fourth Tourism Ministerial Conference of China,Russia and Mongolia was held in Ulanqab,a city in the Inner Mongolia Autonomous Region?At the Conference,the representatives of the three countries shared their achievements of cultural and tourist cooperation,and visualized the direction and modality of their trilateral cultural and tourist cooperation in the future. 展开更多
关键词 The FOURTH TOURISM Ministerial CONFERENCE the inner mongolia Autonomous region in the future
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The Focal Depth Analysis of the Inner Mongolia-Ningxia Border Area Earthquakes
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作者 Liu Yongmei Liu Fang +1 位作者 Liu Gaimei Zhang Fan 《Earthquake Research in China》 CSCD 2018年第2期233-244,共12页
We selected the 103 M_L≥2. 5 earthquake waveform data from the Inner Mongolia-Ningxia border during 2009-2015,which was recorded by the Inner Mongolia Digital Seismic Networks and used the simplex method, Hyposat met... We selected the 103 M_L≥2. 5 earthquake waveform data from the Inner Mongolia-Ningxia border during 2009-2015,which was recorded by the Inner Mongolia Digital Seismic Networks and used the simplex method, Hyposat method, double difference location method,and deterministic method (PTD) for the determination of focal depth,and compared the results. The CAP moment tensor inversion method is used to determine the focal depths of the Alxa Left Banner M5. 8 and M4. 2 earthquakes. The final results of the focal depth by the deterministic method (PTD) and the double difference location method fit well with the tectonic characteristics of the Inner Mongolia-Ningxia border area,but those of the simplex method and the Hyposat method do not. The average depth of the Inner Mongolia-Ningxia border seismic tectonic zone is 13. 32 ± 8 km. 展开更多
关键词 The inner mongolia-Ningxia BORDER region The FOCAL depth Determination of four methods Comparison and ANALYSIS
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不同草原防火政策下内蒙古草原火灾发生风险及其驱动因素的研究 被引量:1
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作者 张恒 诺敏 +4 位作者 班擎宇 赵鹏武 常禹 弥宏卓 殷继艳 《中国草地学报》 CSCD 北大核心 2024年第4期100-111,共12页
草原火灾是草原生态系统中重要的干扰因子之一,不同时期的草原防火政策可能会导致草原火灾发生概率及驱动因素发生变化。本研究基于内蒙古1981~2020年草原火灾数据,以新旧《草原防火条例》实施时间(旧《草原防火条例》1993年10月5日颁... 草原火灾是草原生态系统中重要的干扰因子之一,不同时期的草原防火政策可能会导致草原火灾发生概率及驱动因素发生变化。本研究基于内蒙古1981~2020年草原火灾数据,以新旧《草原防火条例》实施时间(旧《草原防火条例》1993年10月5日颁布并实施,新《草原防火条例》2008年11月19日颁布并于2009年1月1日起实施)为界线,通过随机森林模型分4个时期(1981~2020年、1981~1993年、1994~2008年、2009~2020年)对内蒙古草原火灾发生概率与驱动因素进行比较与分析,并绘制草原火灾风险等级区划图。结果表明:(1)4个时期建模的全样本AUC在0.930~0.940之间,精度优异。(2)在不同时期,气象因素(日平均相对湿度、气温日较差等)始终是影响草原火灾的主导因素,海拔、距火点最近公路距离等因素也是内蒙古草原火灾发生的重要驱动因素;(3)1981~1993年和1981~2020年草原火灾风险区基本相似,中、高、极高草原火灾风险区主要集中在呼伦贝尔市大部分地区和兴安盟北部,1994~2008年中、高、极高草原火灾风险区主要集中在呼伦贝尔市,而2009~2020年中、高、极高草原火灾风险区主要集中在呼伦贝尔市西部、锡林郭勒盟北部、阿拉善盟东南部、乌海市和鄂尔多斯市东部。 展开更多
关键词 内蒙古自治区 草原火灾 草原防火条例 驱动因素 火灾风险区划
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内蒙古自治区就业质量有效性评估指标体系设计及运用 被引量:3
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作者 谷素华 安锦 《阴山学刊》 2024年第2期82-88,共7页
就业率和失业率一直都是研究就业的主要内容,它们可以作为研究就业现状的指标,但更应该关注就业质量问题。新常态下,供给侧结构性改革引发了劳动力供需不匹配、结构性就业矛盾等问题,即劳动力供需不匹配与就业质量水平较低。在此背景下... 就业率和失业率一直都是研究就业的主要内容,它们可以作为研究就业现状的指标,但更应该关注就业质量问题。新常态下,供给侧结构性改革引发了劳动力供需不匹配、结构性就业矛盾等问题,即劳动力供需不匹配与就业质量水平较低。在此背景下,内蒙古自治区提升就业质量的重要性日益凸显。 展开更多
关键词 就业质量 效果评估 内蒙古自治区
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新质生产力推动内蒙古产业结构优化升级的理论逻辑与路径 被引量:1
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作者 任军 孟佳佳 《工业技术经济》 CSSCI 北大核心 2024年第9期55-61,共7页
新质生产力与产业结构之间具有内在逻辑,它能够以新要素为产业结构优化调整注入创新活力。本文旨在分析新质生产力的内涵与特征,探讨新质生产力在推动内蒙古产业结构优化升级中的理论逻辑,结合内蒙古当前产业结构存在的问题,提出新质生... 新质生产力与产业结构之间具有内在逻辑,它能够以新要素为产业结构优化调整注入创新活力。本文旨在分析新质生产力的内涵与特征,探讨新质生产力在推动内蒙古产业结构优化升级中的理论逻辑,结合内蒙古当前产业结构存在的问题,提出新质生产力推动内蒙古产业结构转型升级的路径,以期为内蒙古经济高质量发展提供理论和实践指导。 展开更多
关键词 新质生产力 产业结构优化升级 内蒙古 高质量发展 数字技术 科技创新 可持续发展 区域布局
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蒙陕接壤区煤层顶板涌水水源智能判别方法
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作者 王皓 孙钧青 +3 位作者 曾一凡 尚宏波 王甜甜 乔伟 《煤田地质与勘探》 EI CAS CSCD 北大核心 2024年第4期76-88,共13页
蒙陕接壤区煤炭高强度开采诱发的煤层顶板水害问题日益凸显,高效智能地判别煤层顶板涌水水源是顶板水害防治的关键。以蒙陕接壤区3个典型矿井为研究对象,将无机指标K^(+)+Na^(+)、Ca^(2+)、Mg^(2+)、Cl^(-)、SO_(4)^(2-)、HCO_(3)^(-)、... 蒙陕接壤区煤炭高强度开采诱发的煤层顶板水害问题日益凸显,高效智能地判别煤层顶板涌水水源是顶板水害防治的关键。以蒙陕接壤区3个典型矿井为研究对象,将无机指标K^(+)+Na^(+)、Ca^(2+)、Mg^(2+)、Cl^(-)、SO_(4)^(2-)、HCO_(3)^(-)、TDS和有机指标UV_(254)、TOC、溶解性有机质(DOM)的荧光光谱作为判别指标,利用主成分分析法(PCA)对80组地下水水样数据进行主成分提取,提出一种人工鱼群算法(AFSA)改进随机森林(RF)的PCA-AFSA-RF顶板涌水水源智能判别方法。首先,建立PCA-RF判别模型,其准确率(A_(c))、精确率(P_(r))、召回率(R_(c))和F-measure指数(f_(1))分别达到了83.00%、83.17%、80.42%和79.57%;其次,通过AFSA对PCA-RF判别模型中决策树数目、树深和内部节点分裂所需的最小样本数进行寻优,在AFSA中引入遗传机制以避免陷入局部最优,建立基于PCA-AFSA-RF的煤层顶板涌水水源智能判别模型,该模型A_(c)、P_(r)、R_(c)、f_(1)分别达到92.18%、91.11%、87.58%和88.82%,较PCA-RF分别提高9.18%、7.94%、7.16%和9.25%,回代准确率达到97.50%;最后,利用该模型对12个矿井水水样进行判别,结果与现场实际相一致,表明AFSA改进后的PCA-RF模型具有更好的准确性和泛化能力。研究结果可为煤层顶板涌水水源的准确判别提供新方法。 展开更多
关键词 蒙陕接壤区 顶板涌水 无机-有机指标 机器学习 智能判别
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