...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Proceedings of the National Academy of Sciences of the United States of America >Benchmark map of forest carbon stocks in tropical regions across three continents
【24h】

Benchmark map of forest carbon stocks in tropical regions across three continents

机译：三大洲热带地区森林碳储量基准图

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Developing countries are required to produce robust estimates of forest carbon stocks for successful implementation of climate change mitigation policies related to reducing emissions from de forestation and degradation (REDD). Here we present a "benchmark" map of biomass carbon stocks over 2.5 billion ha of forests on three continents, encompassing all tropical forests, for the early 2000s, which will be invaluable for REDD assessments at both project and national scales. We mapped the total carbon stock in live bio mass (above- and belowground), using a combination of data from 4,079 in situ inventory plots and satellite light detection and ranging (Lidar) samples of forest structure to estimate carbon storage, plus optical and microwave imagery (1-km resolution) to extrapolate over the landscape. The total biomass carbon stock of forests in the study region is estimated to be 247 Gt C, with 193 Gt C stored aboveground and 54 Gt C stored belowground in roots. Forests in Latin America, sub-Saharan Africa, and Southeast Asia accounted for 49%, 25%, and 26% of the total stock, respectively. By analyzing the errors propagated through the estimation process, uncertainty at the pixel level (100 ha) ranged from ±6% to ±53%, but was con strained at the typical project (10,000 ha) and national (＞ 1,000,000 ha) scales at ca. ±5% and ca. ±1%, respectively. The benchmark map illustrates regional patterns and provides methodologically comparable estimates of carbon stocks for 75 developing countries where previous assessments were either poor or incomplete.
机译：为了成功实施与减少毁林和退化（REDD）排放有关的气候变化减缓政策，发展中国家需要对森林碳储量做出可靠的估算。在这里，我们展示了2000年代初三大洲超过25亿公顷森林（包括所有热带森林）的生物量碳储量的“基准”图，这对于项目和国家规模的REDD评估都是无价的。我们结合了4,079个原地盘存图，卫星光探测和森林结构测距（Lidar）样本的数据，绘制了活生物体（地下和地下）中的总碳储量，以估算碳储量，以及光学和微波图像（1公里分辨率）以推断整个景观。研究区域森林的总生物量碳储量估计为247 Gt C，其中193 Gt C储存在地上，而54 Gt C储存在地下。拉丁美洲，撒哈拉以南非洲和东南亚的森林分别占总数的49％，25％和26％。通过分析在估计过程中传播的误差，像素级别（100 ha）的不确定性范围为±6％至±53％，但在典型项目（10,000 ha）和国家（> 1,000,000 ha）规模上受到限制ca. ±5％和分别为±1％。基准图说明了区域模式，并提供了方法上可比较的75个发展中国家的碳储量估计值，这些国家以前的评估要么很差，要么不完整。

著录项

  • 来源
  • 作者

    Sassan S. Saatchi; Nancy L. Harris; Sandra Brown; Michael Lefsky; Edward T. A. Mitchard; William Salas; Brian R. Zutta; Wolfgang Buermann; Simon L. Lewis; Stephen Hagen; Silvia Petrova; Lee White; Miles Silman; Alexandra Morel;

  • 作者单位

    Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109,lnstitute of Environment, University of California, Los Angeles, CA 90095;

    Winrock International, Ecosystem Services Unit, Arlington, VA 22202;

    Winrock International, Ecosystem Services Unit, Arlington, VA 22202;

    College of Natural Resources, Colorado State University, Fort Collins, CO 80523;

    Institute of Geography, School of Geosciences, University of Edinburgh, Edinburgh EH8 9XP, United Kingdom;

    Applied GeoSolutions, Durham, NH 03824;

    Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109,lnstitute of Environment, University of California, Los Angeles, CA 90095;

    lnstitute of Environment, University of California, Los Angeles, CA 90095;

    Earth and Biosphere Institute, University of Leeds, Leeds LS2 9JT, United Kingdom;

    Applied GeoSolutions, Durham, NH 03824;

    Winrock International, Ecosystem Services Unit, Arlington, VA 22202;

    Agence Nationale des Parcs Nationaux, Republique Gabonaise, BP 20379 Gabon;

    Applied GeoSolutions, Durham, NH 03824;

    Department of Biology, Wake Forest University, Winston-Salem, NC 27106 Environmental Change Institute, University of Oxford, Oxford OX1 3QY, United Kingdom;

  • 收录信息 美国《科学引文索引》(SCI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    forest biomass; forest height; microwave and optical imaging; error propagation; carbon cycling;

    机译：森林生物量;森林高度;微波和光学成像;误差传播;碳循环;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号