欢迎访问《应用生态学报》官方网站,今天是 分享到:

应用生态学报 ›› 2010, Vol. 21 ›› Issue (07): 1681-1688.

• 研究报告 • 上一篇    下一篇

气候变化条件下小兴安岭林区森林采伐面积模拟

郭 锐1,2,布仁仓1**,胡远满1,常 禹1,贺红士1,刘晓梅1,2,张志全3   

  1. 1中国科学院沈阳应用生态研究所, 沈阳 110016;2中国科学院研究生院,北京 100049;3沈阳大学, 沈阳 110044
  • 出版日期:2010-07-20 发布日期:2010-07-20

Simulation of timber-harvesting area in Xiao Xing’anling Mountains under climate change.

GUO Rui1,2, BU Ren-cang1, HU Yuan-man1, CHANG Yu1, HE Hong-shi1,LIU Xiao-mei1,2, ZHANG Zhi-quan3
  

  1. 1Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China;2Graduate University of Chinese Academy of Sciences, Beijing 100049, China;3Shenyang University, Shenyang 110044, China
  • Online:2010-07-20 Published:2010-07-20

摘要: 运用空间直观景观模型LANDIS 6.0 PRO,以采伐面积代替蓄积量作为采伐量,模拟了气候变化条件下,不同采伐强度交替采伐(交替时间分别为10、20、30年)情况下小兴安岭地区2000—2400年间当前采伐方案和11组模拟采伐预案下的森林采伐面积比.结果表明:不同采伐强度的交替进行,一定程度上可以增加研究区采伐面积;与当前采伐方案相比,短期内(10~30年),研究区模拟预案下每10年的采伐面积将增加3%~5%,中期(40~60年)内,研究区模拟预案下每10年的采伐面积将增加2.5%~7%,长期(70~100年)内,研究区模拟预案下每10年的采伐面积将增加3.5%~8%.总体上,研究区当前总采伐面积仍然过高,改变采伐模式虽然可以在一段时间内增加采伐面积,但不具有可持续性.若使研究区森林可持续发展,还需降低采伐强度、转变森林经营管理理念,变可持续林业产出为森林生态系统可持续管理.

关键词: 气候变化, 采伐面积, 可持续采伐, 小兴安岭, LANDIS 6.0 PRO模型, 塔克拉玛干西部, 别里库姆, 胡杨沙堆, 地下水, 数字地面模型, 实时动态控制系统

Abstract: By using the spatially explicit forest landscape model (LANDIS 6.0 PRO), the percentages of timber-harvesting area in Xiao Xing’anling Mountains under current harvesting scenario and under 11 harvesting scenarios with alternating harvesting intensities (alternating time was 10, 20 and 30 years, respectively) in 2000-2400 under climate change were simulated. Alternating harvesting intensity could increase the harvesting area. Comparing with current harvesting scenario, the simulated scenarios could increase the harvesting area by 3%-5% at shortterm (10-30 years), 2.5%-7% at medium term (40-60 years), and 3.5%-8% at long term (70-100 years). On the whole, the current total harvesting area was still high. Alternating harvesting-intensity could increase the harvesting area within a definite term, but the effect  would be  unsustainable. To have a sustainable development of forestry in the study area, it is necessary to reduce the harvesting intensity and change the forest management policy.

Key words: climate change, timber-harvesting area, sustainable timber-harvesting, Xiao Xing’anling Mountains, LANDIS 6.0 PRO model, west of Taklimakan, Birkum, Populus euphratica groundwater, digital terrain model, real-time kinematic system.