简答题:中国能源现状

2025-02-09 03:25:27
推荐回答(1个)
回答1:

第一,人均能源资源相对不足,资源质量较差。 我国常规能源资源的总储量就其绝对量而言,是较为丰富的。1997年全国第三次煤炭资源评价:2000米内煤炭资源总量5.57万亿吨,1000米内2.86万亿吨,探明储量(A+B+C)6044亿吨,可采储量1145亿吨;煤炭储量中:烟煤占75%,无烟煤12%,褐煤13%;按用途分类:动力煤为83%,炼焦造气等原料煤为17%。1993年全国第二次油气资源评价,石油总资源量为940亿吨,天然气总资源量为38万亿立米,专家预测可采资源量:石油为130-150亿吨,天然气7-10万亿立米。煤层气:2000米内测算资源量30-35万亿立米。水能蕴藏量为6.76亿千瓦,可开发量为3.79亿千瓦。新能源与可再生能源:太阳能2/3国土面积年总辐射量超过60万焦/平方厘米,风能资源量估计为2530亿瓦,地热能已探明可采储量4627亿吨标煤,生物能:柴薪秸杆为3亿吨标煤,动物粪便等沼气原料为25亿吨;海洋能资源理论蕴藏量6.3亿千瓦,潮汐能可开发资源量218亿瓦,波浪能理论资源量129亿瓦,潮流能理论资源量140亿瓦,温差能13.2-14.8千亿瓦。然而,由于我国人口众多,就可采储量而言,人均能源资源占有量仅相当于世界平均水平的二分之一。有关专家估计,若按目前的开采水平,我国石油资源和东部的煤炭资源将在2030年耗尽,水力资源的开发也将达到极际。就质量而言,我国能源资源以煤炭为主,按各种燃料的热值计算,在目前的探明储量下,世界能源资源中,固体燃料和液、气体燃料的比例为4:1,而我国则远远落后于这一比值。目前,在世界能源产量中,高质量的液、气体能源所占比例为60.8%,而我国仅为19.1%。
  第二,能源生产消费以煤为主。 在我国的能源生产消费结构由煤炭始终占有较大的比重,1998年,原煤在一次能源生产中所占比重为74.2%,在能源消费结构中,所占比重为75.6%。根据UNEP和UNDP1995年的世界资源报告,在全球能源结构中,世界为:液体37.1%,气体23.7%,固体29.2%,一次电能9.9%;发达国家:液体36.7%,气体27.4%,固体24.1%,一次电能11.7%;发展中国家:液体37.3%,气体14.1%,固体43.7%,一次电能3.8%;而中国:液体17.5%,气体1.6%,固体75%,一次电能5.9%。

  第三、能源工业技术水平低下,劳动生产率较低。 1998年,我国煤炭工业职工总数约占世界煤炭职工人数的52%,而煤炭产量仅占世界总产量的21.5%,人均年产煤量仅为200吨,而世界其他采煤国总计的人均年产煤量为1017吨。全国共有5.1万个小煤矿,其中70%没有生产许可证,不具备起码的安全条件,技术装备和开采方法落后,回采率低下,造成死亡率高和资源严重浪费。全国4600套火电机组中,5万千瓦以下的机组3370台占到73%,其装机总容量仅为4350万千瓦,占总容量的16%。

  第四,交通运力不足,制约了能源工业发展。 我国能源资源存储的西富东贫和消费分布的不均衡性,大大增加了运输压力形成了西煤东运、北煤南运的大批量、远距离输送格局。多年来,由于运力不足造成了大量的煤炭积压,严重制约了煤炭工业的发展。

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