Effects of biochar application on the abundance and community composition of denitrifying bacteria in a reclaimed soil from coal mining subsidence area

2018 ◽  
Vol 625 ◽  
pp. 1218-1224 ◽  
Author(s):  
Yuan Liu ◽  
Jirong Zhu ◽  
Chengyu Ye ◽  
Pengfei Zhu ◽  
Qingsong Ba ◽  
...  
Keyword(s):  
Coal Mining ◽  
Community Composition ◽  
Denitrifying Bacteria ◽  
Mining Subsidence ◽  
Subsidence Area ◽  
Reclaimed Soil ◽  
Coal Mining Subsidence

Effects of the Stability of Reclaimed Soil Aggregates on Organic Carbon in Coal Mining Subsidence Areas

2018 ◽  
Vol 34 (5) ◽  
pp. 843-854 ◽  
Author(s):  
Jun Feng Qu ◽  
Min Tan ◽  
Yu Le Hou ◽  
Meng Yu Ge ◽  
An Ni Wang ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Coal Mining ◽  
Soil Aggregates ◽  
Critical Role ◽  
Mining Subsidence ◽  
Subsidence Area ◽  
Reclaimed Soil ◽  
Coal Mining Subsidence ◽  
Over Time

Abstract. Reclaimed soil aggregates play a critical role in the accumulation of soil organic carbon. The purpose of this article is to investigate the effects of reclaimed soil aggregate development on organic carbon and explore changes in reclaimed agricultural soil over time in a coal mining subsidence area. Adjacent to the control sample plot (CKN), six sample plots of different reclamation time series: 2001 (R15), 2003 (R13), 2005 (R11), 2007 (R9), 2009 (R7), and 2011 (R5) were collected. Soil analyses included aggregate fractionation and organic carbon. Over time, the distribution characteristics of water-stable aggregates in reclaimed soil gradually improved. The concentration of organic carbon in reclaimed soil increased with aggregate size, and the organic carbon concentration of all aggregates increased with reclamation age. As the number of reclamation years increased, organic carbon also increased, first in the free light fraction (fLF) and later in mineral-bound carbon (mineral-C). Accumulation of organic carbon was related to the development of soil aggregates. The formation and carbon sequestration of reclaimed soil aggregates was consistent with the conceptual model of “aggregate turnover.” The transformation and accumulation of organic carbon was consistent with the physical protection mechanism of soil organic carbon. Keywords: Aggregate, Coal mining subsidence area, Reclaimed soil, Soil organic carbon.

Research and Application on Technology of Flood-Storage and Flood-Detention of Coal Mining Subsidence Area of Suzhou Coal Mine

2014 ◽  
Vol 641-642 ◽  
pp. 80-83
Author(s):  
Jia Zhong Zheng ◽  
Mei Zhu ◽  
Zheng Long Wang
Keyword(s):  
Coal Mining ◽  
Dynamic Change ◽  
Storage Conditions ◽  
Flood Routing ◽  
Mining Subsidence ◽  
Subsidence Area ◽  
The Status ◽  
Suzhou City ◽  
Change Trend ◽  
Coal Mining Subsidence

The artical is based on the investigation of the basis of the status quo of Zhuxianzhuang and Luling coal mining subsidence area in Anhui province Suzhou city(hereinafter referred to as the "Zhu Lu subsidence area"), a preliminary analysis of the dynamic change trend of detention space in Zhu Lu subsidence area, and based on the hysteresis storage conditions of subsidence area, use the flood routing model to simulate the hysteresis effect of storage at different subsidence scenarios of different frequency flood. Finally, using the experience type channel evolution model and peak delay routing model further revealed storage effect on flood process of Zhu Lu subsidence area.

Geological Environmental Impact Assessment of Mining Subsidence Area Based on Multilayer Fuzzy Synthetic Evaluation

2014 ◽  
Vol 1010-1012 ◽  
pp. 254-258 ◽  
Author(s):  
Jia Xing Xu ◽  
Hua Zhao ◽  
Gang Li
Keyword(s):  
Coal Mining ◽  
Land Reclamation ◽  
Mining Subsidence ◽  
Geological Environment ◽  
Fuzzy Synthetic Evaluation ◽  
Subsidence Area ◽  
Coal Mining Subsidence ◽  
Landscape Ecological ◽  
Different Levels ◽  
Synthetic Evaluation

Multilayer fuzzy synthetic evaluation is an effective method of the qualitative analysis into the quantitative analysis, and can reflect the different levels of objective things factors, avoiding the difficult to assign weights due to excessive factors. Geological environment of Jiawang coal mining subsidence area in Xuzhou was evaluated with an indices system based on multilayer fuzzy synthetic evaluation. Through evaluation, the serious damage region of geological mining of Jiawang mining subsidence area is 1918.966 hm2, and the more serious damage region is 2524.088 hm2, and the less affected area is 1366.971 hm2. The results showed that the geological environment of Jiawang mining subsidence damage is more serious. The farmland was destroyed seriously, and water due to land collapse was quite serious, which was difficult to land reclamation. It is believed that this work may provide scientific reference for land reclamation and landscape ecological restoration of coal mining subsidence area.

scholarly journals Characters of hydrochemistry and their influenced factors of different waters in the Linhuan coal mining subsidence area of Huaibei City

2017 ◽  
Vol 29 (5) ◽  
pp. 1158-1167 ◽  
Author(s):  
KONG Lingjian ◽  
◽  
JIANG Chunlu ◽  
ZHENG Liugen ◽  
CHENG Hua ◽  
...  
Keyword(s):  
Coal Mining ◽  
Mining Subsidence ◽  
Subsidence Area ◽  
Coal Mining Subsidence
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