Afforestation Technology And Farming Techniques Testing Coal Mining Subsidence Of Arid And Semi-aird Areas

In this paper,5aspects of Daliuta coal mining subsidence were invesgated by outdoor and indoor measurements, with software SPSS11.5for data processing and analysis, the results were as follows:1.To evaluate the effects of different planting patterns on the growth of trees, Siberian Apricot. Xanthoceras sorbifolia Bunge, Cerasus humilis, prunus peduncula ta Pall.were chosen to be planted with different ways andthe growth indicators su ch as survival rate were measured.The results show that:with coating film method, the survival rate of Xanthoceras sorbifolia Bunge reached the highest of18%,and the increment of new branches and the treetops was17.97cm and24.49cm at the most. with200g aquasorb,the survival rate of prunus pedunculata Pall. reached the highest of18%,and the increment of new branches and the treetops was26.27cm and35.91cm at the most.2. to evaluate the effects of different matrix treatments on corn yield, the amount under different treatments were comparatively analysised.The results showed that:under the interaction of fertilization and aquasorb, the highest yield of maize reached to8225.05kg/hm.3. to evaluate the effects of interplant on corn yield, different ways and ratio of interplant were carried out.The results showed that:corn yield with treatment of corn+soybean (1:1) was5426.7kg/hm,which was greater than the yield with treatment of corn+corn crop potatoes (2:1)4246.65kg/hm. so the of role soy in promoting the growth of corn is stronger than potatoes.4. to evaluate whether the interplanting way would be able to lead to higher economic income, The results showed that:at the same acreage, the revenue of interplanting corn and soybean at the ratio of2:1was significantly higher than the revenue of corn or potatoes alone.5. improvement experiments on soil organisms by planting legume,the differences of soil between before planting and after planting were analysised. The results showed that:after plantingMedicaga sativa L、Melilotus Officinalis、Semen Vignae radiatae and Glycine max, the amount of Soil nitrogen, available nitrogen and soil organic matter content has increased, while the amount of soil total phosphorus, available phosphorus, total potassium and potassium content has decreased,so planting legume plants can effectively improve soil nutrients in the soil organic matter,total nitrogen and available nitrogen content.