[题目]下表为“我国部分地区的土地生产潜力和最大可能人口密度表 .结合下表.回答下列各题.地区年生物量可承载人口(万)最大可能人口密度东北地区10510023000229长江中下游地区8860022000395台湾岛.海南岛224005600486西北地区85600850032青海.西藏1000010004[1]表中信息反映的影响人口容量的主导因素是题目和参考答案——青夏教育精英家教网—

题目内容

【题目】下表为“我国部分地区的土地生产潜力和最大可能人口密度表”。结合下表，回答下列各题。

地区	年生物量（万吨）	可承载人口（万）	最大可能人口密度（人/k㎡）
东北地区	105100	23000	229
长江中下游地区	88600	22000	395
台湾岛、海南岛	22400	5600	486
西北地区	85600	8500	32
青海、西藏	10000	1000	4

【1】表中信息反映的影响人口容量的主导因素是（）

A. 科技水平 B. 自然资源 C. 开放程度 D. 消费水平

【2】下列关于青藏地区人口容量的说法，正确的是（）

①地域广大，资源丰富，人口容量大 ②地处内陆气候干早，人口容量小

③生态脆弱，环境人口容量小 ④充分利用该地区丰富的太阳能资源，增大人口容量

A. ①② B. ①③ C. ③④ D. ②④

【答案】

【1】B

【2】B

【解析】试题分析:

【1】根据表中信息可知：东北地区、长江中下游地区、青海、西藏这三个地区的生物总量是105100万吨，88600万吨，10000万吨，它们的承载力是23000万人，22000万人，1000万人，因此影响人口容量的主导因素是自然资源．故选：B．

【2】青藏地区环境承人口载力的特点：地理环境“高、寒”，生态脆弱，环境人口承载力小；充分利用该地区丰富的太阳辐射能，可提高土地生产潜力和环境人口承载力。

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【2】A. so B. but C. and D. then

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【4】A. something B. anything C. everything D. nothing

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【16】A. for B. on C. by D. of

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