坡耕地治理是四川省丘陵区防治水土流失的根本途径

丘陵区是四川省粮、油、棉、麻、果、猪等的主产区,水土流失是该区农业发展中的主要问题。降水集中,强度大;地形起伏丘陵面积占80%以上,侏罗系和白垩系紫色沙泥岩风化物和其土壤松软,抗冲抗蚀力弱;加上人口密集,521人/km~2,是该区水土流失的主要原因。典型调查表明,占耕地45.58%的旱坡地是该区水土流失的主要源地。因此,改造坡耕地(坡改梯、培肥土壤),推广沟、坎、池、凼结合的蓄排工程,沙凼、蓄水池,粪池三池配套经验,是治理丘陵坡地行之有效的措施。文章从坡地治理的责权利等农村政策、资金投放、因地制宜综合治理等方面,提出搞好坡地水土流失治理的措施和意见。

Slope Farm Harness Is the Main Way to Control Soil and water loss in Sichuan Hill Area

Hill area in sichuan is the main production place of food,cook oil,cotton,flax,fruit,pig,etc.The main problem is soil and water loss in this area. Hill area with heavy storm make up more than 80% of the total area.The most important facts which affect erosion are loose soil with high erodibility and high population density of 606 person per square kilometer).According to the typical investigation, the dry slope farm land is about 45.58% of the cultivation land. The slope land is the chief source of the sediment.So the drain and store up method by means of terraced field, count plough, flood storing flood is the effective measures for hill region harness. In this paper we would make some suggestion for soil and water conservation of slope farm land, such as countcy side law, investment, compreshensive measures, etc.