...
首页> 外文期刊>GIScience & remote sensing >Modelling dry season deciduousness in Mexican Yucatan forest using MODIS EVI data (2000-2011)
【24h】

Modelling dry season deciduousness in Mexican Yucatan forest using MODIS EVI data (2000-2011)

机译:使用MODIS EVI数据模拟墨西哥尤卡坦州森林的旱季落叶(2000-2011)

获取原文
获取原文并翻译 | 示例
           

摘要

This study maps interannual variation in the spatial extent of deciduousness in the dry tropical forests of the southern Yucatan (Mexico) from 2000 to 2011 using seasonal variability thresholds based on Moderate Resolution Imaging Spectroradiometer (MODIS) Enhanced Vegetation Index (EVI) data and relates deciduousness to precipitation- and temperature-derived climate variables using linear regressions. The annual occurrence of deciduousness is most frequently observed in forests located in a regional rain shadow at moderate elevations. Regression results suggest that deciduousness is more strongly associated with atypically hot conditions (+2℃; R~2 = 0.44) than with atypically dry conditions (R~2 = 0.19), in contrast to other phenological processes (e.g. leaf growth, peak productivity) driven primarily by precipitation.
机译:这项研究使用中度分辨率成像光谱仪(MODIS)增强植被指数(EVI)数据的季节性变化阈值,绘制了2000年至2011年南部尤卡坦州(墨西哥)干旱热带森林中落叶度的年际变化图,并将其与落叶性联系起来使用线性回归分析降水和温度衍生的气候变量。每年落叶的发生最常发生在中等海拔的区域雨影中的森林中。回归结果表明,与非典型干旱条件(R〜2 = 0.19)相比,与非典型干旱条件(R〜2 = 0.19)相比,落叶性与非典型高温条件(+ 2℃; R〜2 = 0.44)相关性更强。 )主要受降水驱动。

著录项

  • 来源
    《GIScience & remote sensing》 |2013年第1期|26-49|共24页
  • 作者单位

    Clark Graduate School of Geography, Clark University, Worcester, MA 01610, USA;

    Clark Graduate School of Geography, Clark University, Worcester, MA 01610, USA;

    Department of Geography and Environment, Rowan University, Glassboro, NJ 08028, USA;

    Clark Graduate School of Geography, Clark University, Worcester, MA 01610, USA;

    Department of Geography, Rutgers, the State University of New Jersey, Piscataway, NJ 08854, USA;

    Department of Environmental Sciences, University of Virginia, Charlottesville, VA 22904-4123, USA;

    Clark Graduate School of Geography, Clark University, Worcester, MA 01610, USA;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    phenology; deciduousness; MODIS;

    机译:物候学落叶莫迪斯;

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