珠江三角洲滨海低地土壤的特性及其改良利用途径

珠江三角洲是我国重要粮食基地之一,也是广东的“粮仓”,这里水分充足,热量丰富,土壤肥沃,有利于各种作物生长。滨海地区,每年都有大面积海滩地形成和发展,据调查统计,已具有围垦、扩垦条件的海滩地约有三十多万亩。充分利用海滩地,扩大耕地面积,对发展粮食作物(水稻)和经济作物(甘蔗)具有重大意义。

ON THE CHARACTERISTICS AND UTILIZATION OF LOWLAND SOILS OF CHUKIANG DELTA

Lowland soils derived from marine deposit along the coastal areas of Chukiang Delta are usually salinized due to frequent flood. The present paper gives the composition and seasonal variation of the salt content of the soils. Lowland soils have been subjetted for cultivation after diking. Intensive farming provided with good irrigation and drainage system accelerated the desalinization of the soils. Sugar-cane showed good endurance on saline soils and was planted in rotation with rice.