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赣南是江西南部的简称。赣南一般春、夏多雨,秋、冬干旱,常有旱、涝等自然灾害。全区现有各种旱地56万亩,约占总耕地面积的11.5%;还有可供开垦利用的红壤岗地、紫色土荒坡、荒地100万亩。目前赣南旱地土壤的状况是:1、分布广。山区、丘陵梯田与平原、河畔坝地均有分布,其中以丘陵旱地面积较大。2、条件差。旱地缺乏水源,没有灌溉设施,极易受水、旱灾害。3、土层薄。一般土层只有6~12厘米,质地粘重或属沙漏性土壤。4、酸性重。多属第四纪红色粘性土,紫色砂页岩风化的紫色土等,pH多为5~6。5、肥力低。有机质低于1.5%,土壤中有效养分少,由于土体结构性能差,土壤保肥供肥能力弱。6、侵蚀大。
Gannan is short for southern Jiangxi. Gannan spring, summer rainy, autumn and winter drought, drought, floods and other natural disasters. The region has a variety of 56 million mu of dry land, accounting for about 11.5% of the total arable land; there are available for reclamation and utilization of red hillock, purple soil and barren hills, 100 million mu of wasteland. At present, the status of dry land in southern Jiangxi is: 1, widely distributed. Mountain, hill terraces and plains, river dam are distributed, of which a larger area of hilly drylands. 2, poor conditions. Lack of water in drylands, no irrigation facilities, vulnerable to water, drought disaster. 3, thin soil. General soil is only 6 to 12 cm, the texture sticky or hourglass soil. 4, acidic weight. Mostly Quaternary red clay, purple sand weathered purple soil, etc., pH is mostly 5 to 6.5, low fertility. Organic matter is less than 1.5%, less effective nutrients in the soil, due to poor soil structure, soil fertilizer and fertilizer supply capacity is weak. 6, erosion big.