Tropical grassy biomes: misunderstood, neglected, and under threat
Tropical grassy biomes: misunderstood, neglected, and under threat
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DOI：
10.1016/j.tree.2014.02.004
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发表时间：
2014-04-01
影响因子：
16.8
通讯作者：
Andersen, Alan N.
中科院分区：
文献类型：
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作者：
Parr, Catherine L.;Lehmann, Caroline E. R.;Andersen, Alan N.
热带草地生物群在全球范围内分布广泛，提供重要的生态系统服务，并影响地球大气系统。然而，全球应用的生物群定义忽视了对其功能和进化史至关重要的植被特征。因此，TGB的确定是不一致的，并曲解了支配植被结构的生态过程，对生物多样性造成了连锁的负面后果。在这里，我们讨论与TGB、清洁发展机制(CDM)和减少毁林和森林退化排放计划(REDD+)的定义相关的威胁，以及大气中二氧化碳的增加，这可能会促进未来的国家转移。三氯乙烷的退化是隐蔽的，与森林生物群相比不那么明显。由于人类对TGB的依赖以及它们对木本变化的倾向，生态学和进化史不仅是TGB识别的基础，也是它们未来持久性管理的基础。
Tropical grassy biomes (TGBs) are globally extensive, provide critical ecosystem services, and influence the earth atmosphere system. Yet, globally applied biome definitions ignore vegetation characteristics that are critical to their functioning and evolutionary history. Hence, TGB identification is inconsistent and misinterprets the ecological processes governing vegetation structure, with cascading negative consequences for biodiversity. Here, we discuss threats linked to the definition of TGB, the Clean Development Mechanism (CDM) and Reducing Emissions from Deforestation and Forest Degradation schemes (REDD+), and enhanced atmospheric CO2, which may facilitate future state shifts. TGB degradation is insidious and less visible than in forested biomes. With human reliance on TGBs and their propensity for woody change, ecology and evolutionary history are fundamental to not only the identification of TGBs, but also their management for future persistence.