Feasibility of sewage sludge compost of TEDA sewage Treatment Plant using on saline soil amelioration in coastal area was analyzed. Potential problems and relevant solutions were presented.

Through the analyzing about the situation of soil pollution and the legal basis in China, put forward the necessity and feasibility of laying down the soil pollution control law in China.

Elaborate environment characteristic of chernozem soil area, analysis feasibility of planting licorice with ecological benefit? zoology benefit? society benefit and production technology.