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中蒙跨境经济合作区建设和对接问题研究 被引量:4
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作者 洪冬星 《财经理论研究》 2015年第6期38-45,共8页
在中国二连浩特与蒙古国扎门乌德两个边境双子城之间建设跨境经济合作区是中蒙边境经济合作的新兴发展模式,推进了两国跨边境区域经济合作发展的进程。本文在借鉴已有研究成果的基础上,提出中蒙跨境经济合作区建设与对接的战略构想,包... 在中国二连浩特与蒙古国扎门乌德两个边境双子城之间建设跨境经济合作区是中蒙边境经济合作的新兴发展模式,推进了两国跨边境区域经济合作发展的进程。本文在借鉴已有研究成果的基础上,提出中蒙跨境经济合作区建设与对接的战略构想,包括在国家新一轮对外开放战略框架下定位功能,逐步协调、试验探索,立足于两国优势并以蒙古国原产地为特色的外向型制造基地为核心定位,共建综合双方利益诉求的合作内容框架。最后就如何推进这一战略构想的顺利实施提出对策建议。 展开更多
关键词 中国—蒙古 跨境 经济合作 对策建议
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Vegetation landscape structure and dynamics in sandy forest-steppe ecotone
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作者 邹春静 韩士杰 +1 位作者 徐文铎 李道棠 《Journal of Forestry Research》 SCIE CAS CSCD 2003年第4期303-306,共4页
Sandy forest-steppe ecotone in Baiyinaobao Natural Reserve of Inner Mongolia Autonomous Region of China is one of the special landscape types in forest-steppe vegetation zone in China. Vegetation landscape types, land... Sandy forest-steppe ecotone in Baiyinaobao Natural Reserve of Inner Mongolia Autonomous Region of China is one of the special landscape types in forest-steppe vegetation zone in China. Vegetation landscape types, landscape patches, and patch size were measured by the field investigation, forest photograph, and airscape. The structure of landscape patches in sandy forest-steppe ecotone, including composition structure, and size structure, was studied and the dynamics and transformation of landscape patches were analyzed. The data obtained in this study could provide theoretical basis for the research on vegetation landscape in forest-steppe ecotones and other vegetation types. 展开更多
关键词 Vegetation landscape STRUCTURE DYNAMICS Sandy forest STEPPE ECOTONE
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New ratite eggshell material from the Miocene of Inner Mongolia,China
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作者 王烁 胡莹 王璐 《Chinese Birds》 2011年第1期18-26,共9页
Some Miocene ratite eggshell fragments from Gashunyinadege (about 17.5 Ma) and Baogedawula (7.11 ± 0.48 Ma), Inner Mongolia, China, are described. The outer surfaces of eggshell fragments from Gashunyinadege are ... Some Miocene ratite eggshell fragments from Gashunyinadege (about 17.5 Ma) and Baogedawula (7.11 ± 0.48 Ma), Inner Mongolia, China, are described. The outer surfaces of eggshell fragments from Gashunyinadege are smooth with a sting pore pattern, while their entire thickness is around 2.12 mm. In a cross-sectional view, the surface crystal layer is very thin and the ratio of cone layer to the those from Gashunyinadege, but seem much thinner and have a lower pore density. Both characteristics fit aepyornithid-type eggshells, implying that the distribution of aepyornithid-type eggshells can be extended to East Asia. The sediments at Gashunyinadege date to approximately 17.5 Ma, implying that the specimens from this locality are relatively early examples of aepyornithid-type eggshells. Aepyornithidtype eggshells seem to have appeared in Eurasia much earlier than struthionid-type eggshells. The faunal compositions in the two localities reflect gradual drying of the Mongolian plateau during the Miocene. A reduction in the number of pores 10 Ma ago, probably occurred in response to this drying process. 展开更多
关键词 China Inner Mongolia MIOCENE ratite eggshell
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Estimation of Sand Transportation Rate for Fixed and Semi-Fixed Dunes Using Meteorological Wind Data 被引量:3
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作者 HU Xia LIU Lian-You +2 位作者 LI Shun-Jiang XIAO Bi-Lin LIU Mu-Xin 《Pedosphere》 SCIE CAS CSCD 2009年第1期129-136,共8页
Taibus County, Inner Mongolia, China, lies in a farming-pastoral ecotone, where severe wind erosion and various aeolian sand hazards are prevalent and fixed and semi-fixed sand dunes occur frequently. This study was c... Taibus County, Inner Mongolia, China, lies in a farming-pastoral ecotone, where severe wind erosion and various aeolian sand hazards are prevalent and fixed and semi-fixed sand dunes occur frequently. This study was conducted to investigate the relationships between sand transportation rate and wind speed for the fixed and semi-fixed sand dunes based on field measurements. The annual quantity of soil erosion by wind was estimated using meteorological wind data. The results indicated that the sand transportation rate in Taibus County in 2000 was 57.38 kg cm-1 year-1 for the semi-fixed dunes and 4.56 kg cm-1 year-1 for the fixed dunes. The total duration of erosive winds covered 12.5% of the time of the year, and spring posed the highest potential of sand transportation. Wind with low speed (≤ 17 m s-1) and high frequency plays a dominant role in sand transportation, while strong wind (≥ 17 m s-1) with low frequency significantly enhanced the sand transportation. Erosive wind speed, directions, and frequency were three crucial dynamic factors influencing sand hazards in the farming-pastoral ecotone. The dominant factors intensifying sand and dust storms in Taibus County might be related to the favorable wind condition in combination with the durable drought, which led to land desertification and vegetation degradation. 展开更多
关键词 fixed and semi-fixed dunes meteorological wind data sand transportation rate wind erosion
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Precipitation Pulses and Soil CO_2 Emission in Desert Shrubland of Artemisia ordosica on the Ordos Plateau of Inner Mongolia,China 被引量:8
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作者 JIN Zhao DONG Yun-She +1 位作者 QI Yu-Chun M. DOMROES 《Pedosphere》 SCIE CAS CSCD 2009年第6期799-807,共9页
Precipitation is the major driver of ecosystem functions and processes in semiarid and arid regions. In such waterlimited ecosystems, pulsed water inputs directly control the belowground processes through a series of ... Precipitation is the major driver of ecosystem functions and processes in semiarid and arid regions. In such waterlimited ecosystems, pulsed water inputs directly control the belowground processes through a series of soil drying and rewetting cycles. To investigate the effects of sporadic addition of water on soil CO2 effux, an artificial precipitation event (3 mm) was applied to a desert shrub ecosystem in the Mu Us Sand Land of the Ordos Plateau in China. Soil respiration rate increased 2.8 4.1 times immediately after adding water in the field, and then it returned to background level within 48 h. During the experiment, soil CO2 production was between 2 047.0 and 7 383.0 mg m^-2. In the shrubland, soil respiration responses showed spatial variations, having stronger pulse effects beneath the shrubs than in the interplant spaces. The spatial variation of the soil respiration responses was closely related with the heterogeneity of soil substrate availability. Apart from precipitation, soil organic carbon and total nitrogen pool were also identified as determinants of soil CO2 loss in desert ecosystems. 展开更多
关键词 desert shrub ecosystem Mu Us sand land soil respiration response water addition
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Retrieval and Analysis of Coal Fire Temperature in Wuda Coalfield, Inner Mongolia, China 被引量:7
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作者 JIANG Weiguo ZHU Xiaohua +3 位作者 WU Jianjun GU Lei MA Guobin LIU Xiaochen 《Chinese Geographical Science》 SCIE CSCD 2011年第2期159-166,共8页
Coal fire burning around the world is an environmental catastrophe characterized by the emission of noxious gases, particulate matter, and condensation by-products. In this study, coal fire temperature is retrieved ba... Coal fire burning around the world is an environmental catastrophe characterized by the emission of noxious gases, particulate matter, and condensation by-products. In this study, coal fire temperature is retrieved based on Landsat 5 TM images and Generalized Single-Channel Algorithm (GSCA), in Wuda coalfield, Inner Mongolia, China. Then coal fire zones are extracted by Jenks′ natural breaks and threshold methods based on temperature images. Changes of coal fire zones are analyzed from 1989 to 2008. The results are summarized as follows: 1) The coal fire temperature retrieval method based on Landsat 5 TM and the GSCA model is effective and feasible, because the temperature error is relatively small (from –2.9℃ to +2.6℃) between the measured temperature and the retrieved temperature. 2) The accuracy is relatively high to extract coal fire zones through the Jenks′ natural breaks and threshold methods, because 83.56% of surveyed area is located in the coal fire zones extracted in 2005. 3) The coal fire area increased 9.81 × 10 5 m 2 from 1989 to 2005, and the annual growth is about 6.1 × 10 4 m 2 , with an annual increasing rate of 2.48%. The area of coal fire decreased by 8.1 × 10 5 m 2 from 2005 to 2008. 展开更多
关键词 coal fire temperature retrieving Generalized Single-Channel Algorithm Landsat 5 TM Wuda coalfield Inner Mongolia
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Effects of biofertilizers and super absorbent polymers on plant growth and soil fertility in the arid mining area of Inner Mongolia,China 被引量:7
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作者 ZHANG Jian-feng ZHAO Ting-ning +4 位作者 SUN Bao-ping SONG Shuang-shuang GUO Hu-bo SHEN Hao-jie WU Yi 《Journal of Mountain Science》 SCIE CSCD 2018年第9期1920-1935,共16页
A pot experiment was conducted in the Institute of Tianlong Ecology of Baotou City in Inner Mongolia, China, to investigate the effects of the application of biofertilizers and super absorbent polymers(SAP) on plant g... A pot experiment was conducted in the Institute of Tianlong Ecology of Baotou City in Inner Mongolia, China, to investigate the effects of the application of biofertilizers and super absorbent polymers(SAP) on plant growth and soil improvement in arid mining area soil. Two typical species, namely, Syringa oblata Lindl.(SO) and Medicago sativa L.(MS), were present in the Bayan Obo mining area and used as representatives of shrubs and herbaceous plants in the pot experiment.(1) Biofertilizers and SAP significantly increased the tree height, the ground diameter of SO, and the total biomass of MS and improved the soil fertility of the mining area, especially its biological fertility, compared with those of the control group(CK). The application of biofertilizers and SAP decreased the mining soil p H and significantly increased available nitrogen, available phosphorus, available potassium, and soil organic matter.(2) After 180 days of growth, the microbial population(bacteria, fungi, and actinomycetes) and soil microbial biomass carbon and nitrogen significantly increased. Microbial ratios C: N significantly decreased compared with those of CK.(3) T5 and T6 treatments with the following dosages might be the optimum selection for the improvement of the studied mining area soil: 20 g SAP + 15 g biofertilizers(SO), 100 g/m2 SAP + 150 g biofertilizers(MS); 20 g SAP + 30 g biofertilizers(SO), and 100 g/m2 SAP + 200 g biofertilizers(MS). This study provided a promising reference for conducting future field studies and the local vegetation restoration. 展开更多
关键词 Bayan OboSoil amendmentsPlant growth Topsoil water contents Soilmicroorganism Soil nutrients
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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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Effects of Grazing Exclusion on Soil Carbon and Nitrogen Storage in Semi-arid Grassland in Inner Mongolia, China 被引量:10
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作者 WU Xing LI Zongshan +4 位作者 FU Bojie LU Fei WANG Dongbo LIU Huifeng LIU Guohua 《Chinese Geographical Science》 SCIE CSCD 2014年第4期479-487,共9页
The semi-arid grasslands in Inner Mongolia, China have been degraded by long-term grazing. A series of ecological restoration strategies have been implemented to improve grassland service. However, little is known abo... The semi-arid grasslands in Inner Mongolia, China have been degraded by long-term grazing. A series of ecological restoration strategies have been implemented to improve grassland service. However, little is known about the effect of these ecological restoration practices on soil carbon and nitrogen storage. In this study, characteristics of vegetation and soil properties under continued grazing and exclusion of livestock for six years due to a nationwide conservation program—′Returning Grazing Lands to Grasslands(RGLG)′ were examined in semi-arid Hulun Buir grassland in Inner Mongolia, China. The results show that removal of grazing for six years resulted in a significant recovery in vegetation with higher above and below-ground biomass, but a lower soil bulk density and pH value. After six years of grazing exclusion, soil organic C and total N storage increased by 13.9% and 17.1%, respectively, which could be partly explained by decreased loss and increased input of C and N to soil. The effects of grazing exclusion on soil C and N concentration and storage primarily occurred in the upper soil depths. The results indicate that removal of grazing pressure within the RGLG program was an effective restoration approach to control grassland degradation in this region. However, more comprehensive studies are needed to evaluate the effectiveness of the RGLG program and to improve the management strategies for grassland restoration in this area. 展开更多
关键词 grazing exclusion soil carbon storage soil nitrogen storage grassland management Returning Grazing Lands to Grasslands(RGLG) program semi-arid grassland Hulun Buir grassland
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The Fault Line in Chinese Reflective Thinking 被引量:1
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作者 Jim Platts 《Journal of Philosophy Study》 2013年第10期945-957,共13页
Behind what is called "Needham's Grand Question" (why was China overshot by the West in science and technology?) lies a deeper question of how China came to lose the capacity of deeply reflective thought clearly... Behind what is called "Needham's Grand Question" (why was China overshot by the West in science and technology?) lies a deeper question of how China came to lose the capacity of deeply reflective thought clearly present in the ancient Chinese philosophers. This is a loss felt by all Chinese as a psychological sense of hollowness, a loss of identity, made worse by the seeming inaccessibility of the ancient Chinese wisdom to the modern Chinese mind. It is clear that at some historical point China suffered an extreme psychological blow sufficient to traumatise it at the threshold of reflective thought, unable to look inwards any more. The paper identifies that point as the utter devastation wrought by Kublai Khan and the Mongols 750 years ago. What devastates reflective thought is wilfulness, the insistent focusing of all attention and energy on external, material things, and Kublai Khan was wilful in the extreme. What confirms this as the crippling point is that, in response to Kublai Khan's Mongol invasion the Chinese, over time, not only completely altered the geography of China itself, moving their capital to the North (Beijing), but have ever since fought to establish as "China" all the territory over which Kublai Khan ruled. China is clearly not free of Kublai Khan's shadow. But even more precisely, in the process of doing this--and showing their own wilfulness--in building the Forbidden City in Beijing they built it in the shape of the Chinese metaphysical model of the universe, the Chinese version of the Tree of Life metaphysical glyph But it has an error in it. And the error is precisely that in where it places things, it makes what would have been the attributes of reflective thought subservient to wilfulness. The model itself thus shows the hollowness of the Chinese mind from that moment on. The outer form--the "appearance"---of the ancient wisdom was still there. But the content--the "substance"--of it was not. And with no reflective thought, true creativity disappears. 展开更多
关键词 Needham's grand question Kublai Khan the Forbidden City the Tree of Life reflective thinking wilfulness psychological block
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Administrative Urbanization and City-making in Post-reform China: A Case Study of Ordos City, Inner Mongolia 被引量:4
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作者 YIN Guanwen LIU Yungang 《Chinese Geographical Science》 SCIE CSCD 2017年第6期891-903,共13页
In post-reform China, local governments, instead of the central state, have become major promoters of urbanization. Differing from the existing literature based on Western theories, this article argues that a localize... In post-reform China, local governments, instead of the central state, have become major promoters of urbanization. Differing from the existing literature based on Western theories, this article argues that a localized perspective, ‘administrative urbanization', can provide a contextual explanation for the mechanism of urbanization in the reform era. The case study of Ordos indicates that new town construction, especially in the inland area, has become the main strategy for investment attraction and economic development. The local government has played a dominant role in this construction through a series of administrative measures, including avoidance of central state regulations, land leasing, high standard infrastructure construction, relocation policies and industrial attraction. This article also explores the issue of unsustainability in the new town, and identifies that underdeveloped industrialization, slow population agglomeration and real estate bubbles are primary threats to the sustainability of administrative urbanization. 展开更多
关键词 administrative urbanization local government sustainability ORDOS China
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Scale Effect of Climate and Soil Texture on Soil Organic Carbon in the Uplands of Northeast China 被引量:17
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作者 WANG Dan-Dan SHI Xue-Zheng +5 位作者 WANG Hong-Jie D. C. WEINDORF YU Dong-Sheng SUN Wei-Xia REN Hong-Yan ZHAO Yong-Cun 《Pedosphere》 SCIE CAS CSCD 2010年第4期525-535,共11页
Understanding how spatial scale influences commonly-observed effects of climate and soil texture on soil organic carbon (SOC) storage is important for accurately estimating the SOC pool at different scales. The rela... Understanding how spatial scale influences commonly-observed effects of climate and soil texture on soil organic carbon (SOC) storage is important for accurately estimating the SOC pool at different scales. The relationships among climate factors, soil texture and SOC density at the regional, provincial, city, and county scales were evaluated at both the soil surface (0-20 cm) and throughout the soil profile (0-100 cm) in the Northeast China uplands. We examined 1 022 profiles obtained from the Second National Soil Survey of China. The results indicated that the relationships between climate factors and SOC density generally weakened with decreasing spatial scale. The provincial scale was optimal to assess the relationship between climate factors and SOC density because regional differences among provinces were covered up at the regional scale. However, the relationship between soil texture and SOC density had no obvious trend with increasing scale and changed with temperature. There were great differences in the impacts of climate factors and soil texture on SOC density at different scales. Climate factors had a larger effect on SOC density than soil texture at the regional scale. Similar trends were seen in Heilongjiang and eastern Inner Mongolia at the provincial scale. But, soil texture had a greater effect on SOC density compared with climate factors in Jilin and Liaoning. At the city and county scales, the influence of soil texture on SOC density was more important than climate factors. 展开更多
关键词 FACTOR PRECIPITATION spatial scale temperature
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Changes to the Natural Regional Boundaries in China During 1961-2007
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作者 YU Zhen-Yan FAN Guang-Zhou +3 位作者 DONG Yi-Ping WANG Lei HUA Wei ZHOU Ding-Wen 《Atmospheric and Oceanic Science Letters》 2011年第4期199-203,共5页
Daily temperature data from 599 stations across China for the years 1961 to 2007 were used to analyze the changes in the natural regional boundaries. The results show that the accumulated temperature ≥10℃ and its du... Daily temperature data from 599 stations across China for the years 1961 to 2007 were used to analyze the changes in the natural regional boundaries. The results show that the accumulated temperature ≥10℃ and its duration changed dramatically from the end of 1990s to the early 21 st century. The amplitude of natural regional boundaries was greater in the 21st century than it was in the 20th century. In the eastern region of China, the climatic zones were migrating generally northward, with the northern edge of the subtropical zone and the eastern section of the warm temperate zone showing an obvious northward shift of up to 1-3° of latitude. The climatic zones moved south in the Qinghal-Tibet Plateau, western Inner Mongolia, and some areas of western Xinjiang, and slightly to the north in other parts of the western region. 展开更多
关键词 accumulated temperature DURATION natural regional boundary global warming
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On scientif ic expedition tourism of desert region:a case of eastern Ulan Buh Inner Mongolia
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作者 Liu Jun Chen Yuansheng +2 位作者 Cheng Shengkui Jiang Yiyi Qi Deli 《Ecological Economy》 2008年第4期496-502,共7页
Desert-based adventure tourism is a rapidly expanding tourism market segment after the late 20^th century around the world. Perhaps the most significant factor in the development of desert adventure tourism is the ext... Desert-based adventure tourism is a rapidly expanding tourism market segment after the late 20^th century around the world. Perhaps the most significant factor in the development of desert adventure tourism is the extent to which common tourists are really engaged in scientific expedition. Inner Mongolia has long been considered as the resources accumulation area of desert tourism. The investigation on the Ulan Bah Desert has discovered that the desert animals, the vegetation, the insects, the fungus, tire landfrom and the climate are impressive for both the researchers and the mass tourists. After the resources investigation a survey was carried out in 2007 to get the detailed information of the tourists' attitude toward the planning desert scientific product in the Ulan Buh Desert. Based on the resources and market analysis, this paper tries to make a planning of the desert scientific expedition tour of the Ulan Bah Desert. The planning includes the functional division, expedition route design, tour-explaining system, facility of safety guaranty and service planning, and the professional training base. 展开更多
关键词 Scientific expedition tourism Planning Desert Ulan Bah Inner Mongolia
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Geology and geochemistry of Huanggangliang stratabound skarn deposit in Inner Mongolia,China 被引量:2
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作者 WANG Changming 《Global Geology》 2010年第2期61-69,共9页
Over the recent three decades, exploration of a large-size Sn-Fe polymetallic ore deposit at the Huanggangliang, the Da Hinggan Mountains, Inner Mongolia, China, has been largely focused on the premise that the minera... Over the recent three decades, exploration of a large-size Sn-Fe polymetallic ore deposit at the Huanggangliang, the Da Hinggan Mountains, Inner Mongolia, China, has been largely focused on the premise that the mineralization represents epigenetic magmatic hydrothermal ore deposit in genetic connection with the Mesozoic magmatism. The Huanggangliang Sn-Fe polymetallic ore deposits occurred in Permian strata, with silt- stone/marble of the Zhesi Formation and spilite/andesite/tuff of the Dashizhai Formation. The characteristics of geological and geochemical data demonstrated that sedimentary hydrothermal mineralization occurred during the basin evolution at the Permian, rather than representing epigenetie magmatic hydrothermal genesis with the following evidences. The ore-bearing skarus are stratiform with underlying metasedimentary rocks and overlying volcanic sedimentary rocks. Sedimentary hydrothermal textures and structures are observed in the stratabound ore-bearing skarn such as bedded-laminated skarn and magnetite ores with small-size folding or soft deforma- tion, synsedimentary breccia of skarn and magnetite ores and concentric shell structure of magnetite ores. So the stratabound ore-bearing skarns associated with magnetite ore and micro-disseminated tin, are peculiar examples of exhalite. The REE contents of the stratabound ore-bearing skarns display ∑LREE-rich (36.91×10^-6) but EHREE-depletion (6. 42 ×10^-6) , with positive Eu anomaly (Eu/Eu * 1.28) and negative Ce anomaly (Ce/ Ce * 0.88 ) , which is totally different from REE pattern of the Huanggang magmatic rocks( with ∑REE 277.73 ×10^-6, ELREE 220.24 ×10^-6, ∑HREE 57.49 ×10^-6, Eu/Eu* 0.06, Ce/Ce* 1.52) , which is comparable with modern sea-floor hydrothermal fluid,sedimentary hydrothermal ore deposit and associated hydrothermal sedimentary rocks. Calcite samples with δ13CPDB from -5. 400 ‰ to -4. 397 ‰ and δ18SOSMOW from 9. 095 ‰ to 9. 364 ‰ in the stratabound ore-bearing skarns show sedimentary hydrothermal genesis of the Huanggangliang deposit. This proposition is useful not only for interpretation of the genesis of the Huanggangliang large Sn-Fe polymetallic ore deposit but also significant for mineral exploration in the area especially for finding large deposits caused by sedimentary exhalative mineralization processes. 展开更多
关键词 stratabound skarn exhalative genesis REE carbon isotope Huanggangliang ore deposit
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Treatment and survival status of patients with EGFR mutation-positive stage Ⅳ lung adenocarcinoma: five-year follow-up results in the Ordos Area of Inner Mongolia, China
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作者 Gaowa Jin Wenjuan Wang +14 位作者 Shuqin Deng Caihong Jiang Xiaojun Bai Jun Zhao Feng Chen Jixiang Hou Lanzhen Zhao Hui Li Ziyu Lu Lenggaowa Da Yungaowa Wu Xiaoyun Ma Yahan Wu Jiali Gao Quanfu Li 《Oncology and Translational Medicine》 2018年第4期158-162,共5页
Objective We aimed to determine the epidermal growth factor receptor (EGFR) mutation status and treatment survival of patients with stage IV lung adenocarcinoma living in the Ordos area of Inner Mongolia, China. Met... Objective We aimed to determine the epidermal growth factor receptor (EGFR) mutation status and treatment survival of patients with stage IV lung adenocarcinoma living in the Ordos area of Inner Mongolia, China. Methods EGFR testing and first-line tyrosine kinase inhibitor (TKI) treatment rates of patients with stage IV lung adenocarcinoma were analyzed from June 2012 to June 2016. Kaplan-Meier survival curves were constructed to compare patients who received different treatment strategies and those harboring different EGFR mutation statuses. Results EGFR testing and mutation rates were 65.60% and 52.90%, respectively, and improved continuously from June 2012 to June 2016. Among patients with EGFR mutations, 38.9% had EGFR 19 del, 48.2% had L858R, 4.2% had co-existing mutations in exons 19 and 21, and 8.4% had uncommon mutations. The median overall survival (OS) was 29.5, 26.5, and 16.0 months for patients receiving both TKI and chemotherapy, TKI alone, and chemotherapy alone, respectively (P = 0.047). The OS was 26.5 and 30.0 months for patients harboring EGFR 19 del and L858R mutations, respectively (P = 0.096). Conclusion The high OS rates of stage IV lung adenocarcinoma patients living in the Ordos area may be attributed to continuous improvements in EGFR testing and first-line TKI treatment rates. In the era of TKIs, chemotherapy for increasing OS times should be emphasized. 展开更多
关键词 epidermal growth factor receptor (EGFR) tyrosine kinase inhibitor (TKI) minority areas
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Effects of Climate Comfort on Tourists' Network Attention: A Case Study of the Inner Mongolia Autonomous Region
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作者 WANG Gongwei 《Journal of Landscape Research》 2018年第4期149-152,共4页
Based on the data of climate and Baidu Index, the temporal and spatial variation of climate comfort and toudsts9 network attention in Inner Mongolia was analyzed, and the effect of dimate comfort on tourists, net... Based on the data of climate and Baidu Index, the temporal and spatial variation of climate comfort and toudsts9 network attention in Inner Mongolia was analyzed, and the effect of dimate comfort on tourists, network attention. The results showed, tiiat ① Inner Mongolia had a summer-comfortable toudsm climate, and it was uncomfortable to visit Inner Mongolia in winter. With the decrease of latitude, the climate comfort index gradually rose in Inner Mongolia, with a distribution pattern of l"ow in the east and high in the west". There were three types of distribution of the climate comfort index: M-shaped, inverted U-shaped, and inverted V-shaped ② Toutasts5 network attention had certain dependence on the development level of tourism in wrious regions. The degree of network attention of regions with a high level of tourism development was also relatively high, and its distribution was more uniform. Monthly indexes of the tourists, network attention had three types: M-shaped, inverted U-shaped, and inverted V-shaped. ③ On the whole, climate comfort had a positive impact on the degree of network attention, butwith the improvement of the level of tourism development, the impact of climate comfort on the degree of attention of visitors would be weakened.④ The impact of climate comfort on the tourists, network. 展开更多
关键词 Tourism climate Climate comfort Network attention Baidu Index Inner Mongolia
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Characteristics of Momentum and Heat Transfer over Semiarid Grasslands with Different Grazing Intensities in Inner Mongolia,China 被引量:1
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作者 WANG Lei LIU Hui-Zhi +2 位作者 Bettina KETZER FENG Jian-Wu Christian BERNHOFER 《Atmospheric and Oceanic Science Letters》 2011年第5期264-269,共6页
The drag coefficient (Ca) and heat transfer coefficient (Ch) with the bulk transfer scheme are usually used to calculate the momentum and heat fluxes in meteorological models. The aerodynamic roughness length (z0... The drag coefficient (Ca) and heat transfer coefficient (Ch) with the bulk transfer scheme are usually used to calculate the momentum and heat fluxes in meteorological models. The aerodynamic roughness length (z0m) and thermal roughness length (z0h) are two crucial parameters for bulk transfer equations. To improve the meteorological models, the seasonal and interannual variations of Z0m, Z0h, coefficient kB-1, Cd, and Ch were investigated based on eddy covariance data over different grazed semiarid grasslands of Inner Mongolia during the growing seasons (May to September) from 2005 to 2008. For an ungrazed Leymus chinensis grassland (ungrazed since 1979), Z0m and z0h had significant seasonal and in- terannual variations. Zorn was affected by the amount and distribution of rainfall, kB 1 exhibited a relatively negative variation compared with z0h, which indicates that the seasonal variation of z0h cannot be described by kB 1. To parameterize Zorn and z0h, the linear regressions between ln(z0m), ln(z0h), and the leaf area index (LAI) were performed with R2=0.71 and 0.83. The monthly average kB-1 was found to decrease linearly with LAI. The four-year averaged values of Ca and Ch were 4.5 × 10^-3 and 3.9× 10^-3, respectively. The monthly average Cd only varied by 8% while the variation of Ch was 18%, which reflects the dif- ferent impacts of dead vegetation on momentum and heat transfer at this natural grassland. Moreover, with the removal of vegetation cover, grazing intensities reduced Z0m, Z0h, Cd, and Ch. 展开更多
关键词 surface roughness length bulk transfer coefficient grazing intensity semiarid grassland
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The Study on Trade Policy and Openness of Mongolia: Influences on Trade Flows Between China-Mongolia-Russia (Past and Future) 被引量:1
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作者 Fu Qiang Sodnomdargia Bayanjargal 《Chinese Business Review》 2016年第5期249-264,共16页
This paper aimed to highlight the effects of conflict in Mongolia on trade policy and openness, by estimating the trade flows with neighbor countries (China and Russia). Fourteen years' (2000-2013) data of Mongol... This paper aimed to highlight the effects of conflict in Mongolia on trade policy and openness, by estimating the trade flows with neighbor countries (China and Russia). Fourteen years' (2000-2013) data of Mongolian imports and exports were collected and gone through principal component analysis (PCA) and empirical analysis for grouping various trades with China and Russia. The empirical analysis identified the determining factors of Mongolian trade flow and openness with China and Russia. Empirical analysis evidenced that Mongolian trade and openness policy raised bilateral trade between China and Russia, leaving a great influence on economic size. Two main questions represented as empirically tested by each sample country. How did Mongolian trade policy and openness influence trade flows between China and Russia and economic growth of Mongolia? Did Mongolian trade policy and the bilateral trade with China and Russia increase on trade openness? Finally, the study focused on the forecasts from 2016 to 2018 to examine Mongolian trade flows with China and Russia using ordinary least squares method and autoregressive-moving-average (ARMA) model. China-Mongolia-Russia trade flows will continue to dominate during the forecasted period. As shown by the structure of export and import, goods with China and Russia influenced the mutual trade amount. Moreover, China and Russia traded to continue with Mongolia for goods in long run. Trade policy and openness, the major contributor in Mongolian economy, are significantly playing roles in trade and economy. 展开更多
关键词 trade policy OPENNESS neighbour countries influence
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Features of the M7.9 Earthquake in the Russia-Mongolia-China Boundary Region
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作者 RouJie YangYouling SongHeping 《Earthquake Research in China》 2004年第4期357-364,共8页
At 19:33 p.m on September 27, 2003, an earthquake with M7.9 occurred in the Russia-Mongolia-China boundary Region. It was strongly felt in the Altay region of Xinjiang. The losses caused by the earthquake was 76 milli... At 19:33 p.m on September 27, 2003, an earthquake with M7.9 occurred in the Russia-Mongolia-China boundary Region. It was strongly felt in the Altay region of Xinjiang. The losses caused by the earthquake was 76 million yuan (RMB). Some information about the earthquake was outlined, including basic parameters, focal mechanism, evaluation of earthquake disaster losses and so on. The satellite remote sensing information worked initial analysis for deformation of ground and failure phenomenon. 展开更多
关键词 Russia-Mongolia-China boundary region The M7.9 earthquake Focal mechanism Remote sensing Seismotectonic environment
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