论文部分内容阅读
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。
Hilly area is the main producing area of grain, oil, cotton, hemp, fruit and pig in Sichuan Province. Soil and water loss is the main problem in agricultural development in this area. Precipitation concentrated and strong intensity; topography hilly area accounted for more than 80%, Jurassic and Cretaceous purple sandstone weathering material and its soil soft, weak impact erosion resistance; coupled with densely populated, 521 people / km ~ 2, This area is the main reason for soil and water loss. A typical survey shows that 45.58% of arable land on sloping land is the main source of soil and water loss in this area. Therefore, the improvement of slope farmland (slope to ladder, fertilize the soil), to promote ditch, hut, pool, Taipa combined storage project, the Sha Taipa, reservoir, septic tank three pool of supporting experience is the effective management of hilly slopes Measures. The article puts forward the measures and opinions on how to improve the control of soil and water loss from the aspects of rural policies such as responsibility and benefit of slope management, fund allocation and comprehensive management according to local conditions.