[题目]据报载.我国江西省中南部山区出现大片“红色荒漠 .即在亚热带湿润的岩溶地区.土壤遭受严重侵蚀.基岩裸露.地表出现类似荒漠化景观的土地退化现象.据此.回答下列各题.[1]“红色荒漠形成的自然原因主要是A．风化作用 B．风蚀作用 C．水蚀作用 D．沉积作用[2]“红色荒漠形成的人为原因主要是A．过度放牧 B．滥伐森林 C．� 题目和参考答案——青夏教育精英家教网—

题目内容

【题目】据报载，我国江西省中南部山区出现大片“红色荒漠”，即在亚热带湿润的岩溶地区，土壤遭受严重侵蚀，基岩裸露，地表出现类似荒漠化景观的土地退化现象。据此，回答下列各题。

【1】“红色荒漠”形成的自然原因主要是

A．风化作用 B．风蚀作用 C．水蚀作用 D．沉积作用

【2】“红色荒漠”形成的人为原因主要是

A．过度放牧 B．滥伐森林 C．开山取石 D．环境污染

【3】根据“红色荒漠”的特点，对其进行治理首先要做的是

A．大力开荒种田，保持植物覆盖率

B．加强农业生产综合开发

C．退耕还林

D．发展以畜牧业为主的农业生产

【答案】

【1】C

【2】B

【3】C

【解析】

试题分析：

【1】江西省位于东南丘陵地区，这里气候湿热，降水丰富，流水侵蚀作用强盛，所以红色基岩裸露，分布着典型的丹霞地貌。

【2】江西省中南部山区属我国丘陵山区，“红色荒漠”的形成是水土流失的结果，其自然原因从外力作用看应是流水侵蚀作用，造成水土流失的人为原因主要是滥伐森林所致。

【3】低山丘陵地区既要保持水土又要发展经济，需要结合当地多山的自然环境，因地制宜，调整产业结构农林牧副渔相结合。

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