2005-2020年西双版纳热带季节雨林凋落物回收量和现存量动态数据集

A dataset of the litterfall recovery amount and the standing crop dynamics in the tropical seasonal rainforests of Xishuangbanna(2005–2020)

凋落物是指植物地上部分产生并归还到地表的所有有机质的总称,是链接陆地生态系统地上和地下生态过程的关键媒介。凋落物回收量和现存量包括枯枝、枯叶、落果(花)、树皮、苔藓地衣及杂物的干重。枯落叶年总产量可评价森林生产力提供数据支撑,落果(花)对森林种子雨的研究具有重要价值,凋落物各组分的比例是影响生态系统碳循环过程和养分循环的重要因素。本数据集收集了2005–2020年西双版纳热带季节雨林凋落物各组分回收量和现存量动态数据。建立和共享本数据集可以为深入探讨全球水热格局变化情形下的植被结构和生态系统功能提供本底资料,为推动凋落物研究和热带季节雨林的研究提供依据。

Litterfall refers to the collective organic matter generated by the aboveground parts of plants that accumulates on the surface.It is a key medium linking the ecological processes between the aboveground and the underground in terrestrial ecosystems.Litterfall recovery and the standing crop comprise the dry weight of branches,leaves,flowers and fruits,bark,moss and lichen,and so on.The annual yield of leaf litterfall can provide data support for the assessment of forest productivity,and the falling flowers and fruits are of great value to the research of forest seed rain.The proportion of each component is an important factor affecting nutrient cycling and carbon cycling in the ecosystem.The dataset collects the litterfall recovery amount and the standing crop of the tropical seasonal rainforest in Xishuangbanna during 2005–2020.The establishment and sharing of this dataset can furnish fundamental data for the in-depth examination of vegetation structure and ecosystem function under the global hydrothermal pattern changes,and serve as a foundation for advancing the study of the litterfall and tropical seasonal rain forests.