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以贵州喀斯特地区3种针叶林为研究对象,采用标准样地调查和生物量实测数据,对各生态系统的生物量、碳含量以及碳储量进行研究分析。结果表明:马尾松天然林、马尾松人工林和湿地松人工林生态系统乔木生物量分别为103.46、140.55、164.15 t/hm~2;林下植被及死地被物层生物量分别为7.762、6.994、8.622 t/hm~2。林木各器官含碳量:马尾松天然林0.427~0.530 g C/g、马尾松人工林0.443~0.574 g C/g、湿地松人工林0.444~0.466g C/g。3种森林生态系统碳储量分别为:马尾松天然林678.025 t/hm~2、马尾松人工林777.11 t/hm~2、湿地松人工林834.135 t/hm~2。其中植被层分别为48.199、70.788、76.438 t/hm~2;死地被物层为0.667、0.659、0.742 t/hm~2;土壤层为629.159、705.664、756.955 t/hm~2。碳储量分布格局为土壤层>植被层>死地被物层。研究结果可以为贵州喀斯特地区针叶林管理及运营提供基础数据。
Taking the three kinds of coniferous forests in karst area of Guizhou as the research object, the biomass, carbon content and carbon storage of each ecosystem were studied and analyzed by standard sample survey and biomass measurement data. The results showed that the arbor biomass of Pinus massoniana natural forest, Pinus massoniana plantation and Pinus elliottii plantation ecosystem were 103.46, 140.55 and 164.15 t / hm 2, respectively. The biomass of understory vegetation and dead layer was 7.762 and 6.994, respectively , 8.622 t / hm ~ 2. The carbon contents of various organs of forest trees were 0.427-0.530 g C / g in natural forest of Pinus massoniana, 0.443-0.574 g C / g in masson pine forest and 0.444-0.466 g C / g in P. elliottii forest. The carbon stocks of the three forest ecosystems were 678.025 t / hm ~ 2 for Pinus massoniana plantation, 777.11 t / hm ~ 2 for Pinus massoniana plantation and 834.135 t / hm2 for Pinus elliottii plantation respectively. The vegetation layers were 48.199, 70.788 and 76.438 t / hm ~ 2, respectively; the layers of dead and ground were 0.667, 0.659 and 0.742 t / hm ~ 2 respectively; the soil layers were 629.159, 705.664 and 756.955 t / hm ~ 2. The distribution pattern of carbon storage is soil layer> vegetation layer> dead layer. The results can provide basic data for the management and operation of coniferous forests in Guizhou Karst area.