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一、基本情况四川盆地丘陵区总土地面积121234.7平方公里,其中耕地面积5330万亩、林地面积2042万亩、草山草坡面积1844万亩,分别占总土地面积的29.4%、11.2％和10.2%.丘陵主要分布在海拔200～700米的紫色砂、页岩地区.区内人口众多,现已达到6224万人,也就是说,在全省21.2％的土地上,集中了61.1%的人口。该区耕地占全省的55.8%,粮、棉油、蔗、蚕桑、柑桔等产量占全省的比重较大,工农业总产值达337亿元,占全省总产值759亿元的44.4%,是四川省工农业生产的主要基地.
I. BASIC INFORMATION The total land area in the hilly area of Sichuan Basin is 121,234.7 km 2, of which 53.3 million mu is arable land, 20.42 million mu is woodland and 18.44 million mu is grassy hillside, accounting for 29.4%, 11.2% and 10.2% of the total land area respectively. The hills are mainly distributed in purple sand and shale areas of 200-700 meters above sea level, with a large population of 62.24 million people, which means that 61.1% of the population is concentrated on 21.2% of the province’s land. The cultivated area in this area accounts for 55.8% of the province’s total. The output of grain, cottonseed oil, cane, sericulture and citrus accounts for a large proportion of the province’s total output. The total output value of agriculture and industry reaches 33.3 billion yuan, accounting for 44.4% of the province’s total output value of 75.9 billion yuan %, Is the main base of industrial and agricultural production in Sichuan Province.