Concentration, distribution and occurrence of mercury in Chinese coals

Mercury in coals is one of the important sources of atmospheric mercury, which is potentially harmful to the ecological environment. Based on the data of 970 coal samples, the concentration, spatial distribution and occurrence of mercury in Chinese coals were analyzed. The main conclusions are as follows: The distribution of mercury concentration in Chinese coalfields is uneven; medium and high mercury coals are mainly distributed in southwest China and eastern Inner Mongolia. The mercury concentrations in various coal-forming periods are as follows: K (0.320 mg/kg) > P2 (0.220 mg/kg) > C3 (0.179 mg/kg) > J (0.177 mg/kg) > D (0.165 mg/kg) > P1 (0.136 mg/kg) > C1 (0.090 mg/kg) > E (0.086 mg/kg) > T3 (0.066 mg/kg). The mercury concentrations in different coal ranks are as follows: Lignite (0.164 mg/kg), long flame coal (0.078 mg/kg), non-caking coal (0.256 mg/kg), weakly caking coal (0.086 mg/kg), gas coal (0.151 mg/kg), fat coal (0.122 mg/kg), coking coal (0.171 mg/kg), lean coal (0.393 mg/kg), meagre coal (0.161 mg/kg), anthracite (0.160 mg/kg). Sulfide bound state is the main form of mercury in coals, and pyrite is the main occurrence medium.

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Warm-induced aridification in eastern Inner Mongolia evidenced by tree rings

Dendrochronologia ◽

10.1016/j.dendro.2017.01.006 ◽

2017 ◽

Vol 42 ◽

pp. 73-79 ◽

Cited By ~ 2

Author(s):

Bo Sun ◽

Yu Liu ◽

Ying Lei ◽

Lingxia Guo

Keyword(s):

Tree Rings ◽

Inner Mongolia ◽

Eastern Inner Mongolia

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A Study of the Coupling Relation between Mineral Resources Exploitation and Ecological Environment: Evidence from the Grassland of Inner Mongolia

IOP Conference Series Earth and Environmental Science ◽

10.1088/1755-1315/811/1/012005 ◽

2021 ◽

Vol 811 (1) ◽

pp. 012005

Author(s):

Xing Long Xie

Keyword(s):

Inner Mongolia ◽

Mineral Resources ◽

Ecological Environment ◽

Resources Exploitation

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GENETIC DIVERSITY OF NEOTYPHODIUM ENDOPHYTES ISOLATED FROM <EM>ACHNATHERUM SIBIRICUM</EM> POPULATIONS IN MID_ AND EASTERN INNER MONGOLIA STEPPE, CHINA

Chinese Journal of Plant Ecology ◽

10.17521/cjpe.2006.0084 ◽

2006 ◽

Vol 30 (4) ◽

pp. 640-649 ◽

Cited By ~ 2

Author(s):

WEI Yu_Kun ◽

◽

GAO Yu_Bao ◽

LI Chuan ◽

XU Hua ◽

...

Keyword(s):

Genetic Diversity ◽

Inner Mongolia ◽

Eastern Inner Mongolia

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Geological Features and Ore Genesis of the Silver Polymetallic Mineralized Area Occurring in Bayanchagan, Central-eastern Inner Mongolia

Acta Geologica Sinica - English Edition ◽

10.1111/1755-6724.12383_7 ◽

2014 ◽

Vol 88 (s2) ◽

pp. 1513-1514 ◽

Cited By ~ 1

Author(s):

Zhe JIANG ◽

Fengjun NIE

Keyword(s):

Inner Mongolia ◽

Ore Genesis ◽

Geological Features ◽

Central Eastern ◽

Eastern Inner Mongolia

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Sustainability Governance in China: An Analysis of Regional Ecological Efficiency

Sustainability ◽

10.3390/su11071958 ◽

2019 ◽

Vol 11 (7) ◽

pp. 1958 ◽

Cited By ~ 5

Author(s):

Xiangxiang Sun ◽

Lawrence Loh

Keyword(s):

Inner Mongolia ◽

Central Area ◽

Ecological Environment ◽

Chinese Government ◽

Data Envelopment ◽

Ecological Efficiency ◽

Eastern Area ◽

Sulfur Dioxide Emissions ◽

Sustainability Governance ◽

Ecological Governance

The Chinese government is committed to sustainability governance to alleviate the shortage of energy and the imbalance between ecological environment and economic development. This paper evaluates and analyzes the sustainability governance performance of China. A bootstrap data envelopment analysis (DEA) is proposed to evaluate sustainability governance performance of 30 provinces based on ecological efficiency in China from 1998 to 2015. The results indicate that the ecological efficiency of China significantly improved as a whole, which is related to the decline in sulfur dioxide emissions. Among these provinces, Jiangsu, Liaoning, and Inner Mongolia exhibited the highest values, while Gansu, Chongqing, and Sichuan had the lowest values. The 30 provinces were divided into four sub-areas. The average ecological efficiency of the eastern area was the highest, followed by the northeast area. Compared to the east area, northeast area, and central area, we find that west area obviously falls behind. As such, the results provide helpful guidance to improve ecological governance performance.

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Effects of cultivation and agricultural abandonment on soil carbon, nitrogen and phosphorus in a meadow steppe in eastern Inner Mongolia

Agriculture Ecosystems & Environment ◽

10.1016/j.agee.2020.107284 ◽

2021 ◽

Vol 309 ◽

pp. 107284

Author(s):

Chu Wang ◽

Linghao Li ◽

Yuchun Yan ◽

Yurong Cai ◽

Dawei Xu ◽

...

Keyword(s):

Soil Carbon ◽

Inner Mongolia ◽

Meadow Steppe ◽

Agricultural Abandonment ◽

Nitrogen And Phosphorus ◽

Eastern Inner Mongolia

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Optimization of the National Land Space Based on the Coordination of Urban-Agricultural-Ecological Functions in the Karst Areas of Southwest China

Sustainability ◽

10.3390/su11236752 ◽

2019 ◽

Vol 11 (23) ◽

pp. 6752 ◽

Cited By ~ 7

Author(s):

Xiaoqing Zhao ◽

Sinan Li ◽

Junwei Pu ◽

Peipei Miao ◽

Qian Wang ◽

...

Keyword(s):

Land Use ◽

Southwest China ◽

Arable Land ◽

Ecological Environment ◽

Spatial Structures ◽

Ecological Functions ◽

Land Protection ◽

Karst Areas ◽

Functional Areas ◽

Land Space

National land spatial planning is dominated by urban-agricultural-ecological functions and has become a Chinese national strategic issue. However, the three functional spaces have serious conflicts in the karst areas, causing inconsistencies in regional development and triggering poverty and a more serious situation for the ecological environment. In this study, we used the gray multi-objective dynamic programming model and the conversion of land use and its effects at small region extent model to simulate the developmental structures of future land use in the karst areas of Southwest China under a socioeconomic development scenario, an arable land protection scenario and an ecological security scenario. Finally, based on the coordination of the urban-agricultural-ecological functions, we used a functional space classification method to optimize the spatial structures of the national land space for 2035 year and to identify different functional areas. The results showed that the three scenarios with different objectives had differences in the quantities and spatial structures of land use but that the area of forestland was the largest and the area of water was the smallest in each scenario. The optimization of the national land space was divided into seven functional areas—urban space, agricultural space, ecological space, urban-agricultural space, urban-ecological space, agricultural-ecological space and urban-agricultural-ecological space. The ecological space was the largest and the urban-ecological space was the smallest among seven functional areas. The different types of functional spaces had significant differentiation characteristics in the layouts. The urban-agricultural space, urban-ecological space, agricultural-ecological space and urban-agricultural-ecological space can effectively alleviate the impacts of human activities and agricultural production activities in karst areas, promote the improvement of rocky desertification and improve the quality of the regional ecological environment. The results of this research can provide support for decisions about the balanced development of the national land space and the improvement of environmental quality in the karst areas.

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