Merrill. is one of important crops in the Changjiang River Basin.
大豆是长江流域重要的作物之一。
Mixed alder and cypress forest is a main mixed type on purple soil, playing an important role in the construction of protection forests in the Changjiang River basin.
桤柏混交林是紫色土的主要人工混交类型，在长江防护林建设中有重要作用。
By use of the observational data, the climatic and hydrological features of the catastrophic flood over the Changjiang River basin during the summer of 1998 are analysed, its cause is also explored.
利用实际观测资料来分析1998年夏发生在长江流域特大洪涝的气候与水文特征，并探讨其成因。
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