CAJ | 학술논문

以南亚热带地区广西宁明县米老排成熟林（34年生）为研究对象，采用标准样地法对其碳库及其分布格局进行研究。结果表明：①米老排不同器官碳素含量在472.6～509.3 g· kg－1之间，各器官碳素含量排序依次为树叶、干材、干皮、树枝、树根。灌木层、草本层、凋落物层碳素含量分别为480.4、469.1、483.2 g· kg－1。土壤（0～100 cm）土层中碳素含量为8.94 g· kg－1，随土层加深土壤中碳素含量逐渐减少。②米老排人工林生态系统碳库为272.80 t· hm－2，其中乔木层为143.47 t· hm－2，占52.59％；灌木层为0.44 t· hm－2，占0.18％；草本层为0.18 t· hm－2，占0.07％；凋落物层为5.07 t· hm－2，占1.86％；土壤层为123.64 t· hm－2，占45.32％。③米老排成熟林年净生产力为10.17 t· hm－2· a－1，碳素年净固定量为5.37 t· hm－2· a－1，折合成CO2的量为19.69 t· hm－2· a－1。
이남아열대지구엄서저명현미로배성숙림（34년생）위연구대상，채용표준양지법대기탄고급기분포격국진행연구。결과표명：①미로배불동기관탄소함량재472.6～509.3 g· kg－1지간，각기관탄소함량배서의차위수협、간재、간피、수지、수근。관목층、초본층、조락물층탄소함량분별위480.4、469.1、483.2 g· kg－1。토양（0～100 cm）토층중탄소함량위8.94 g· kg－1，수토층가심토양중탄소함량축점감소。②미로배인공림생태계통탄고위272.80 t· hm－2，기중교목층위143.47 t· hm－2，점52.59％；관목층위0.44 t· hm－2，점0.18％；초본층위0.18 t· hm－2，점0.07％；조락물층위5.07 t· hm－2，점1.86％；토양층위123.64 t· hm－2，점45.32％。③미로배성숙림년정생산력위10.17 t· hm－2· a－1，탄소년정고정량위5.37 t· hm－2· a－1，절합성CO2적량위19.69 t· hm－2· a－1。
The standard plot method was used to study the carbon stock and distribution of mature M.laosensis plantation(34-year-old) in Ningming County of Guangxi,China.The results showed that carbon content in different organs of M.laosensis ranged from 472.6 g· kg-1 to 509.3 g· kg-1 and was in the order as:leaf>stem>bark>branch>root.The carbon content in shrub layer, herb layer and litter floor were 480.4 g· kg-1 ,469.1 g· kg-1 and 483.2 g· kg-1 respectively.Carbon content in the soil(0~100 cm) was 8.94 g · kg-1 and declined with soil depth.The total carbon stock in M.laosensis plantation ecosystems amounted to 272.80 t· hm-2 ,of which over-storey of M.laosensis stored 143.47 t· hm-2 and accounted for 52.59%,the shrub layer stored 0.44 t· hm-2 and accounted for 0.18%, the herb layer stored 0.18 t· hm-2 and accounted for 0.07%, the litter floor Stored 5.07 t· hm-2 and accounted for 1.86%, and the soil stored 123.64 t· hm-2 and accounted for 45.32%.The annual net productivity of M.laosensis trees was 10.17 t· hm-2 · a-1 ,and annual net carbon fixation was up to 5.37 t· hm-2 · a-1 ,amounted CO2 to 19.69 t· hm-2 · a-1 .