Soil Nutrient Analysis of Different Utilization Types in Coal Mining Subsidence Area

2015 ◽  
Vol 768 ◽  
pp. 752-757
Author(s):  
Xiu Jie Zhou ◽  
Hong Bo Zhao ◽  
Fei Liu ◽  
Qiang Zhang ◽  
Liang Zuo Shu

Soil nutrient of different utilization types in coal mining subsidence area had been analyzed. Results showed that: In greenhouse reclamation area, the content of organic matter and elements was higher, the pH-value was slightly high, followed by was cropland reclamation area; but in forest reclamation area (Include new reclamation area and intercropping reclamation area), as the reclamation and cropping were prolonged, soil fertility was improved.

2013 ◽  
Vol 726-731 ◽  
pp. 3828-3831 ◽  
Author(s):  
Ting Ting Yang ◽  
Yong Gao ◽  
Guo Zheng Yao ◽  
Peng Li

Ground surface subsidence will cause enormous impact to ecological environment in Coal Gob. But the study concerning the effect of the surface subsidence on soil nutrients is little. Taking Bulianta (Sandstorm--subsidence Area) and Yujialiang (Loess-subsidence Area) coal mine in Shenfu-Dongsheng coal field as study object, The characteristics of soil nutients in non-collapse area and the effect of collapse on soil nutrients are sdudied systematicly by Field sampling and laboratory analysis.The results showed that: With the increasing of soil depth, total soil nutrient content gradually reduced in both stduy areas, While in Sandstorm-subsidence Area, Total nitrogen and total phosphorus increased with soil depth. The total nitrogen and total phosphorus in Sandstorm-subsidence Area is lower than those in Loess-subsidence Area, but the total K is higher than that in Loess-subsidence Area. In a word, the effect of coal mining subsidence on total soil nutrients in both Areas is on the small side.


2014 ◽  
Vol 641-642 ◽  
pp. 80-83
Author(s):  
Jia Zhong Zheng ◽  
Mei Zhu ◽  
Zheng Long Wang

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.


2014 ◽  
Vol 1010-1012 ◽  
pp. 254-258 ◽  
Author(s):  
Jia Xing Xu ◽  
Hua Zhao ◽  
Gang Li

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.


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

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