Phenology of Vegetation Photosynthesis
Phenology of Vegetation Photosynthesis
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DOI：
10.1007/978-94-007-0632-3_29
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发表时间：
2003
期刊：
影响因子：
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通讯作者：
L. Gu;W. Post;D. Baldocchi;T. Andy Black;Shashi B. Verma;T. Vesala;S. Wofsy
中科院分区：
文献类型：
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作者：
L. Gu;W. Post;D. Baldocchi;T. Andy Black;Shashi B. Verma;T. Vesala;S. Wofsy
在本章中，我们通过表征植被光合作用的植物群落生长活动，扩展了植物物候学的传统研究领域。我们引入了一种系统方法来客观地确定植被光合作用季节变化的各个阶段。我们得出了一套物候指数，可用于描述各种植被类型的季节性植被光合作用活动。这些指数可以量化不同植被类型对气候条件变化的响应之间的差异和相似之处。我们的研究表明，植被功能类型可以被视为物候研究的基本单位。我们发现春季光合作用的发展速度与秋季光合作用衰退的速度相关，并且发展速度总体上快于衰退速度。
In this chapter, we expanded the traditional research area of plant phenology by characterizing plant community growth activities from vegetation photosynthesis. We introduced a systematic approach to objectively determine the various stages in the seasonal march of vegetation photosynthesis. We derived a suite of phenological indices that can be used to describe seasonal vegetation photosynthetic activities for a variety of vegetation types. These indices make it possible to quantify the differences and similarities between different vegetation types in their responses to changes in climatic conditions. Our study indicates that vegetation functional types may be considered as basic units in phenological studies. We found that the pace of photosynthesis development in the spring is related to the pace of photosynthesis recession in the fall, and development is in general faster than recession.