How precipitation legacies affect broad-scale patterns of primary productivity: Evidence from the Inner Mongolia grassland

doi:10.1016/j.agrformet.2022.108954

	How precipitation legacies affect broad-scale patterns of primary productivity: Evidence from the Inner Mongolia grassland
	Zhao, Yujin ; Lu, Xiaoming 1; Wang, Yang ; Bai, Yongfei1
	2022
发表期刊	AGRICULTURAL AND FOREST METEOROLOGY
ISSN	0168-1923
卷号	320
摘要	The legacy effects of precipitation, defined as the impact of precipitation from previous years on current-year net primary productivity (NPP), have been well recognized in field experiments and site-level observational studies. However, it remains unclear how consecutive dry or wet years influence the directions and magnitude of legacies and broad-scale patterns of NPP. Here, we quantified the spatial and temporal patterns of legacy effect across different numbers of consecutive wet and dry years from 2000 to 2020 in the Inner Mongolia grassland. Spatially, the response of legacies to precipitation transitions was asymmetric along the mean annual precipitation gradient. The positive response of legacies to precipitation decrease was found for desert steppe and typical steppe after preceding wetness. In contrast, the response of legacies to precipitation increase was negative for desert steppe and meadow steppe after preceding drought. Moreover, legacies were more sensitive in desert steppe than that in typical steppe and meadow steppe for both the preceding wetness and preceding drought. However, the meadow steppe showed the highest response to the inter-annual precipitation change among the three grassland types. Furthermore, the legacies responded more strongly to precipitation decrease (preceding consecutive wet years) than the increase (preceding consecutive dry years) for meadow steppe and typical steppe. Yet, the desert steppe showed the opposite response to precipitation change. Temporally, the legacy effects lasted for only one year and could be transmitted year by year. Our findings highlight that consecutive wet and dry years play essential roles in controlling the NPP responses to climate fluctuations in arid and semi-arid grasslands. Understanding ecosystem responses to climatic periods can provide insights into the effects of directional changes in rainfall associated with climate change.
关键词	Arid and semi-arid grassland Mongolia plateau Net primary production (NPP) Variability in primary production Precipitation legacy Climate change
学科领域	Agronomy ; Forestry ; Meteorology & Atmospheric Sciences
DOI	10.1016/j.agrformet.2022.108954
收录类别	SCI
语种	英语
WOS关键词	NET PRIMARY PRODUCTIVITY ; TERRESTRIAL ECOSYSTEMS ; USE EFFICIENCY ; CLIMATE ; DROUGHT ; MEMORY ; DYNAMICS ; VARIABILITY ; RESISTANCE ; INCREASES
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000795681100007
出版者	ELSEVIER
文献子类	Article
出版地	AMSTERDAM
EISSN	1873-2240
资助机构	National Key R&D Program of China [2017YFA0604702] ; National Natural Science Foundation of China [32192464]
作者邮箱	yfbai@ibcas.ac.cn
引用统计
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/28977
专题	植被与环境变化国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, 20 Nanxincun, Beijing 100093, Peoples R China 2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Zhao, Yujin,Lu, Xiaoming,Wang, Yang,et al. How precipitation legacies affect broad-scale patterns of primary productivity: Evidence from the Inner Mongolia grassland[J]. AGRICULTURAL AND FOREST METEOROLOGY,2022,320.
APA	Zhao, Yujin,Lu, Xiaoming,Wang, Yang,&Bai, Yongfei.(2022).How precipitation legacies affect broad-scale patterns of primary productivity: Evidence from the Inner Mongolia grassland.AGRICULTURAL AND FOREST METEOROLOGY,320.
MLA	Zhao, Yujin,et al."How precipitation legacies affect broad-scale patterns of primary productivity: Evidence from the Inner Mongolia grassland".AGRICULTURAL AND FOREST METEOROLOGY 320(2022).

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