PREFACE 1A. the GENERAL CONCEPT 31.3 Land1.1 What is Soil? 41.2 the nature and the composition of the soil 6 1.3 water and air in the soil 6 1.4 nutrition and nutrition in soil volume multi 72. The definition of soil environment 8 3. What is soil pollution? 8B. 10-LAND pollutionI. the main cause of soil pollution 101. According to the origin arose 10 1.2 the artificial origin 111.2.1 the pollution caused by the waste of living 111.2.2 the pollution caused by industrial waste 121.2.3 the pollution due to agricultural waste. 151.2.3.1. Soil contamination due to chemical fertilizer 17 1.2.3.2 pollution caused by plant protection drugs (HERBICIDE) 181.2.3.3 irrigation mode 182. According to the polluting agent 182.1. soil contamination due to chemical agent 182.1.1 soil contamination by heavy metals 22 2.1.2 soil contamination due to chemical toxins 222.1.3 25 acid deposition2.2. Pollution caused by physical agents. 25thermal pollution 2.2.1 252.2.2 soil contamination caused by radioactive substances 252.3 pollution caused by biological agents. 252.4 other causes 282.4.1 soil contamination due to oil spills. 282.4.2 the pollution caused by the war to 282.4.3 the pollution caused by the disaster. 29II. Effects of soil contamination. 30III. Status of soil pollution.IV. Measures for improvement and minimize soil pollution. 35 The conclusion
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