本文主要是介绍全球地面实测凋落物（Litterfall) 数据集，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！
1. 研究背景
[3]
主要结论：作者结合litterfall数据和SIF/EVI数据，揭示了物候的规律
1. 对于光照和降水异步的地区（Rclimate<0，背景是红色）
- 紫色点（赤道地区）：落叶和长叶都在旱季
- 红色点：落叶在旱季，长叶在雨季
2. 对于光照和降水同步的地区（Rclimate>0，背景是蓝色）
- 蓝色点：落叶和长叶都在雨季
2. 凋落物数据集空间分布
[3] 中的数据集 （全球，下图显示时候点和底图有偏移）
[2] 中的数据集 （南美，下图显示时候点和底图有偏移）
[6] 中的数据集（全球，下图显示时候点和底图有偏移）
3. 凋落物数据集来源
- [1] 泛亚热带：Wu J, Su Y, Chen X, et al. Leaf shedding of Pan-Asian tropical evergreen forests depends on the synchrony of seasonal variations of rainfall and incoming solar radiation[J]. Agricultural and Forest Meteorology, 2021, 311: 108691.
- [2] 南美：Gong F, Chen X, Yuan W, et al. Partitioning of three phenology rhythms in American tropical and subtropical forests using remotely sensed solar-induced chlorophyll fluorescence and field litterfall observations[J]. International Journal of Applied Earth Observation and Geoinformation, 2022, 107: 102698.
- [3] 全球：Yang X, Wu J, Chen X, et al. A comprehensive framework for seasonal controls of leaf abscission and productivity in evergreen broadleaved tropical and subtropical forests[J]. The Innovation, 2021, 2(4).
- [4] 中国：Dai Y, Gong F, Yang X, et al. Litterfall seasonality and adaptive strategies of tropical and subtropical evergreen forests in China[J]. Journal of Plant Ecology, 2022, 15(2): 320-334.
- [5] 中国：Liu X, Feng Y, Zhao X, et al. Climatic drivers of litterfall production and its components in two subtropical forests in South China: A 14-year observation[J]. Agricultural and Forest Meteorology, 2024, 344: 109798.
- [6] 全球：Holland, E.A., W.M. Post, E.G. Matthews, J.M. Sulzman, R. Staufer, and O.N. Krankina. 2014. A Global Database of Litterfall Mass and Litter Pool Carbon and Nutrients. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/1244
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