• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文OA文献 >Biomass Growth from Multi-Temporal TanDEM-X Interferometric Synthetic Aperture Radar Observations of a Boreal Forest Site
【2h】

Biomass Growth from Multi-Temporal TanDEM-X Interferometric Synthetic Aperture Radar Observations of a Boreal Forest Site

机译：来自多时间串联X干涉性合成孔径雷达观测的生物量生长学

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务，本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文，但由于OA文献来源多样且变更频繁，仍可能出现获取不到、文献不完整或与标题不符等情况，如果获取不到我们将提供退款服务。请知悉。
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Forest growth estimation is important in forest research and forest management, but complex to analyze in diverse forest stands. Twelve summertime TanDEM-X acquisitions from the boreal test site, Krycklan, in Sweden, with a known digital terrain model, DTM, have been used to study phase height and aboveground biomass change over 3.2 years based on the Interferometric Water Cloud Model, IWCM. The maximum phase height rate was determined to 0.29 m/yr, while the mean phase height rate was 0.16 m/yr. The corresponding maximum growth rate of the aboveground dry biomass, AGB, was 4.0 Mg/ha/yr with a mean rate of 1.9 Mg/ha/yr for 27 stands, varying from 23 to 183 Mg/ha. The highest relative AGB growth was found for young stands and high growth rates up to an age of 150 years. Growth rate differences relative a simplified model assuming AGB to be proportional to the phase height were studied, and the possibility to avoid a DTM was discussed. Effects of tree species, thinning, and clear cutting were evaluated. Verifications using in situ data from 2008 and a different in situ dataset combined with airborne laser scanning data from 2015 have been discussed. It was concluded that the use of multi-temporal TanDEM-X interferometric synthetic aperture radar observations with AGB estimates of each individual observation can be an important method to derive growth rates in boreal forests.
机译：森林成长估计在森林研究和森林管理中是重要的，但在多样的森林站立中分析的复杂性。十二次夏季串联X X从北方测试站点获取克里克兰，在瑞典，具有已知的数字地形模型，DTM，基于干涉水云模型，IWCM，研究了3.2岁以上的阶段高度和地上生物量变化。最大相高速率确定为0.29米/毫升，而平均相高速率为0.16米/毫升。上述干生物质（AGB）的相应最大生长速率为4.0mg / ha / yr，平均速率为1.9mg / ha / yr，27个展位，从23-183 mg / ha不同。为年轻人和高增长率高达150年的高增长率，发现了最高的相对agb增长。研究假设AGB与相位高度成比例的简化模型的生长速率差异，并且讨论了避免DTM的可能性。评估树种，细化和清除切割的影响。已经讨论了从2008年使用的原位数据和来自2015年的空中激光扫描数据的校准数据的验证。得出结论是，使用多时间串联X干涉性合成孔径雷达观测，具有每个单独观察的AGB估计可以是北方森林中得出增长率的重要方法。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

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