Effect of Land Reclamation on Nutrient Distribution in Reclaimed Farmlands Overlying Xuzhou Underground Coal Mines *1English Full Text
B. M. KOROMA 1, ZHU YINMEI 1, ZHENG CHUNRONG 2 and CHEN HUAIMAN 2 1 College of Natural Resources and Environmental Sciences, Zhejiang Agricultural University, Hangzhou 310029 (China) 2 Institute of Soil Science, the Chinese Academy of
Abstract: This research was carried out to evaluate the effect of the reclamation procedure with respect to soil fertility and nutrient distribution pattern in the reprecipitated reclaimed soil. Although there was an obvious indication of low levels of essential nutrients in the reclaimed farmlands (organic matter=0.32 g kg -1 ,total N=380.8 mg kg -1 , available P=4.7 mg kg -1 ), compared to the undisturbed farmlands (organic matter=2.5 g kg -1 , total N=1 220 g kg -1 , available P=20.8 mg kg -1 ), the uneven pattern of nutrient distribution was also shown to have been the major limitation to successful reclamation. Further improvement can be achieved through the integration of intensive eco farming systems using proper fertilizer field correction (PFFC) and organic manure for successful reestablishment and management of newly reclaimed farmlands overlying the Xuzhou coal mine subsidence.
Keywords:
coal mine subsidence; hydraulic dredge pump technique; land reclamation; nutrient distribution;
- Series:
(D) Agriculture
- Subject:
Fundamental Science of Agriculture; Agronomy; Forestry
- Classification Code:
S156
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