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以我国江西、浙江两省的森林植被为研究对象,基于1999—2003年间第六次全国森林清查数据及收集的1030个亚热带森林样地文献资料,依据林分生长的经验方程,估算了两个地区森林2004—2013年的固碳潜力,并基于455个样点的调查数据研究了不同森林管理措施(纯林间种、间伐、施肥)对森林未来固碳潜力的影响.结果表明:第六次森林清查以来的10年(2004—2013)间,江西森林植被年均自然固碳潜力约11.37TgC·a-1(1Tg=1012g),而浙江省森林植被年均自然固碳潜力约4.34TgC·a-1.纯林间种对江西、浙江两省森林植被固碳潜力影响最大,其次为间伐抚育,施肥的影响最小.纯林间种、间伐和施肥3种森林管理措施使江西省森林植被固碳潜力分别提高(6.54±3.9)、(3.81±2.02)和(2.35±0.6)TgC·a-1,浙江省森林植被固碳潜力分别提高(2.64±1.28)、(1.42±0.69)和(1.15±0.29)TgC·a-1.
Taking the forest vegetation in Jiangxi and Zhejiang provinces of our country as the research object, based on the sixth national forest inventory data from 1999 to 2003 and the collected literature data of 1030 subtropical forest plots, based on the empirical equations of stand growth, two Based on the survey data of 455 sampling sites, the effects of different forest management practices (pure forest inter-seeding, thinning and fertilization) on the future carbon sequestration potential of forests were studied.The results show that the sixth The annual average natural carbon sequestration potential of forest in Jiangxi province was 11.37TgC · a-1 (1Tg = 1012g) in the 10 years (2004-2013) since the forest inventory, while the annual average natural carbon sequestration potential of forest in Zhejiang Province was about 4.34TgC · A-1. Pure forest species had the greatest influence on the carbon sequestration potential of forest in Jiangxi and Zhejiang provinces, followed by the least effect of thinning, tending and fertilization. Three kinds of forest management measures of pure forest, thinning and fertilization made the forest of Jiangxi Province The carbon sequestration potentials of vegetation in Zhejiang Province increased by (6.54 ± 3.9), (3.81 ± 2.02) and (2.35 ± 0.6) TgC · a-1, and the carbon sequestration potentials increased by 2.64 ± 1.28 and 1.42 ± 0.69 (1.15 ± 0.29) TgC · a-1.