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Author(s): |
MAKOWSKY Lutz, Faculty of Agricultural Sciences & Landscape Architecture, University of Applied Sciences Osnabrück,Osnabrück, Germany
NIX Kevin, Faculty of Agricultural Sciences & Landscape Architecture, University of Applied Sciences Osnabrück,Osnabrück, Germany
MEUSER Helmut, Faculty of Agricultural Sciences & Landscape Architecture, University of Applied Sciences Osnabrück,Osnabrück, Germany
Jia-ping Yan, School of Environmental and Earth Science, Anhui University of Science and Technology, Huainan, 232001, China
Liang-ji Xu, School of Environmental and Earth Science, Anhui University of Science and Technology, Huainan, 232001, China |
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Abstract: |
Hard coal mining is the dominating industry in the study area of Huainan (Province Anhui, China).Abstract: Hard coal mining is the dominating industry in the study area of Huainan (Province Anhui, China).As a consequence, subsidence of the surface takes place. Besides settlement area, flooding of the former terrestrialAbstract: Hard coal mining is the dominating industry in the study area of Huainan (Province Anhui, China).area mainly affects farmland. As a countermeasure, reclamation is done by depositing coal miningAbstract: Hard coal mining is the dominating industry in the study area of Huainan (Province Anhui, China).waste (CMW) and fly ash (FA) from the local coal mines and power plants. These substrates are afterwardsAbstract: Hard coal mining is the dominating industry in the study area of Huainan (Province Anhui, China).covered with local natural loamy soil to prepare the sites for agricultural use. To ensure sustainable and economicAbstract: Hard coal mining is the dominating industry in the study area of Huainan (Province Anhui, China).application of the cover soil, research is done to find out about the optimal range of cover soil thicknessAbstract: Hard coal mining is the dominating industry in the study area of Huainan (Province Anhui, China).for wheat biomass production. Two sites were selected where cover soil was underlain by substrates consistingAbstract: Hard coal mining is the dominating industry in the study area of Huainan (Province Anhui, China).of CMW (Datong, Xinzhuangzi) and FA (Shangyao A & B), respectively. The size of test sites rangedAbstract: Hard coal mining is the dominating industry in the study area of Huainan (Province Anhui, China).between 1.3 to 1.9 ha. The weight of wheat biomass was measured after harvesting 1 m2 test fields (n = 9-27Abstract: Hard coal mining is the dominating industry in the study area of Huainan (Province Anhui, China).test fields per test site). The test fields were placed at different cover soil thicknesses. Push probe and soil profileAbstract: Hard coal mining is the dominating industry in the study area of Huainan (Province Anhui, China).sampling enabled the description of cover soil thicknesses and horizon specific properties down to 1 mAbstract: Hard coal mining is the dominating industry in the study area of Huainan (Province Anhui, China).depth. The push probe soil surveys of the test sites resulted in an overall range of cover soil thickness of 25Abstract: Hard coal mining is the dominating industry in the study area of Huainan (Province Anhui, China).cm to 90 cm. Four thickness classes were delimited: ≤ 40 cm (low), 41-55 cm (medium), 56-70 cm (high) andAbstract: Hard coal mining is the dominating industry in the study area of Huainan (Province Anhui, China).> 70 cm (very high). The wheat biomass ranged between 5 t ha-1 and 27 t ha-1 revealing significantly higherAbstract: Hard coal mining is the dominating industry in the study area of Huainan (Province Anhui, China).wheat biomass at Xinzhuangzi compared with the other test sites. On the contrary, wheat biomass at ShangyaoAbstract: Hard coal mining is the dominating industry in the study area of Huainan (Province Anhui, China).B was significantly the lowest. Generally, wheat biomass increased with increasing cover soil thicknessAbstract: Hard coal mining is the dominating industry in the study area of Huainan (Province Anhui, China).at all test sites. In detail, no benefit was evident if applying more than 60?5 cm cover soil on the CMW testAbstract: Hard coal mining is the dominating industry in the study area of Huainan (Province Anhui, China).sites and 45?5 cm on FA test sites. This finding was derived from significant differences between the low andAbstract: Hard coal mining is the dominating industry in the study area of Huainan (Province Anhui, China).medium class in all cases. Simultaneously, medium and high cover soil thickness only partly showed significantAbstract: Hard coal mining is the dominating industry in the study area of Huainan (Province Anhui, China).differences. Further research should include additional test sites to testify the findings. Moreover, investigationsAbstract: Hard coal mining is the dominating industry in the study area of Huainan (Province Anhui, China).on the relevant processes and soil properties are recommended. This will provide further insight intoAbstract: Hard coal mining is the dominating industry in the study area of Huainan (Province Anhui, China).the relevant factors which influence the wheat biomass production. Finally, the findings on the optimal coverAbstract: Hard coal mining is the dominating industry in the study area of Huainan (Province Anhui, China).soil thickness can be modified.
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