CAJ | 학술논문

煤矸石山由于其堆积物的高含碳量和高自燃风险,是一类巨大的碳排放源,其温室气体排放亟需有效控制.虽然近年来国内外学者对温室气体的排放和吸收过程,生态系统各部分中的碳储量及其变化机制进行了大量研究,但是关于煤矸石堆积侵占土地与碳排放相互关系的研究至今还没有报道.文章以阳泉矿区煤矸石山为例,计算了煤矸石堆存带来的潜在碳排放量及其导致的陆地生态系统碳储鞋变化.结果表明,阳泉矿区煤矸石山堆存碳密度超过了其覆盖的当地原本自然生态系统碳储存密度的1000倍,二氧化碳排放风险很高.截止到2006年,阳泉矿区不到300hm~2的矸石山已白燃排放超过326Mt碳当量的二氧化碳,还有潜在碳排放量15.1Mt,此外矸石堆积还造成当地自然生态系统约13.12kt的碳损失.煤矸石山的生态修复能够防止自燃,固定煤矸石中的大量碳,还可以增加煤矸石山自然生态系统的碳储量,有着很好的碳减排效益.
매안석산유우기퇴적물적고함탄량화고자연풍험,시일류거대적탄배방원,기온실기체배방극수유효공제.수연근년래국내외학자대온실기체적배방화흡수과정,생태계통각부분중적탄저량급기변화궤제진행료대량연구,단시관우매안석퇴적침점토지여탄배방상호관계적연구지금환몰유보도.문장이양천광구매안석산위례,계산료매안석퇴존대래적잠재탄배방량급기도치적륙지생태계통탄저혜변화.결과표명,양천광구매안석산퇴존탄밀도초과료기복개적당지원본자연생태계통탄저존밀도적1000배,이양화탄배방풍험흔고.절지도2006년,양천광구불도300hm~2적안석산이백연배방초과326Mt탄당량적이양화탄,환유잠재탄배방량15.1Mt,차외안석퇴적환조성당지자연생태계통약13.12kt적탄손실.매안석산적생태수복능구방지자연,고정매안석중적대량탄,환가이증가매안석산자연생태계통적탄저량,유착흔호적탄감배효익.
Due to its high carbon content arid high self-ignition risk, coal gangue dump is a huge source of carbon emission whose greenhouse effect should be controlled effectively. Many scholars have done lots of research on the emission and absorption process of greenhouse gas as well as the carbon storage and its changing mechanism in all kinds of ecosystem. However, few reports discussed the relationship between carbon emission and coal gangue dumps. Taking ecosystem in Yangquan mining area as an example, potential carbon emission from coal gangue dumps and consequential change of carbon storage were measured. Results showed that carbon density of coal gangue dumps in Yangquan was 1,000 times higher than original local ecosystems. Till 2006, less than 300 hectares of coal gangue dumps in the area had already emitted more than 3.26Mt of carbon, with 15.1Mt carbon kept in the coal gangue facing a very high risk of emission. Carbon loss in the regional ecosystems had mounted to 13.12kt. Through self-ignition prevention,carbon conservation in coal gangue and increase of carbon storage in regional ecosystems, the restoration of coal gangue dumps can be of great benefit in reducing carbon emissions.