soil reclamation
2.Experimental results of control showed that para-sitic nematodes of fruit trees can be controlled by using rootstock and varieties which are resistant to nema-todes,soil reclamation and nematocids。
4.There is no enough soil for subgrade reclamation of Maoming-Zhanjiang Expressway inTongcheng-Sanya National Trunk Highway because the soil resources nearby are mainly high liquid limit soil, which makes the borrow very difficult.
6.The statistic analysis revealed that as reclamation years increasing,the soil pH value reduced gradually compared with the no reclaimed soil and the range was between 9.95-6.58,whose maximum value appeared in no reclaims,while the minimum value appeared in the mine soil after 60 year-reclamation.
7.LARGE SOIL ANIMALS INDICATOR FUNCTIONS OF RECLAMATION OF ECOLOGICAL ERVIRONMENT IN IRON-MINE ABANDONED OF DAGUSHAN,ANSHAN CITY
8.The main cause of soil erosion is deforestation for farmland reclamation and cultivation on steep slopes.
9.The programs for building urban green shelter, afforestation in the remote area, development of ecological agriculture, soil erosion control and desert and barren land reclamation are all well under way.
10.The Research of the Soil Fertility Changes in Loess Area Large Opencast Coal Mines Different Reclamation Models and Reclamation Years——Taking Pingshuo ATB Opencast Coal Mine as Example
