论春秋战国之际楚国对江汉平原的经济开发

春秋战国之际，楚国开始衰落。但是楚国对江汉平原的开发在这一时期却取得了显著的成效。农业上，采用先进的生产工具和耕作技术，粮食生产效率高；手工业上，漆器制造业和丝织业发达；商业上，国内市场繁荣，对外贸易也比较发达。这种卓有成效的开发为后来宣威盛世的到来打下了坚实的经济基础。

Discussion on Economic Exploitation of Jianghan Plain by Chu State during Periods of Autumn-Spring and Warring States

Though the State of Chu began to weaken when entering the Spring-Autumn and Warring States Periods,economic exploitation on the Jianghan Plain still enjoyed great achievements.Agriculturally,advanced tools and farming techniques were adopted,rice was thus efficiently produced.Then in terms of handcraft,lacquer and silk industries were also flourishing.And commercially,both home market and foreign trade were thriving.In consequence,such fruitful developments laid a solid foundation for the later Prosperous Time of Xuanwei.