气候变化领域集成服务门户(CCPortal): Considering the Adaptive Cycle and Resilience of the Ecosystem to Define Reference Conditions for Wetland Restoration

CCPortal

DOI	10.1029/2021EF002419
	Considering the Adaptive Cycle and Resilience of the Ecosystem to Define Reference Conditions for Wetland Restoration
	Liu, Hanxiang; Gao, Chuanyu; Wang, Guoping
通讯作者	Gao, CY ; Wang, GP (通讯作者)
发表日期	2022
EISSN	2328-4277
卷号	10 期号:4
英文摘要	Ecosystem resilience to pressures expanding and contracting within the adaptive cycle as slow variables change. However, little is known about their role in defining reference conditions for wetland restoration. Here, we applied paleoecological data of two wetlands that have been degraded (Honghe, riparian peatland) and disappeared (Shenjiadian, valley peatland) to evaluate ecosystem resilience to anthropogenic pressures as the phases of the adaptive cycle progress. The slow variables of plants and diatoms gradually began to change from moisture to dry loving species under severe disturbances in the late 1970s. Then regime shift took place around 1990 CE (Current Era) based on a sequential T-test analysis and F statistics on the slow variables. A drop in water level caused by human activities rather than climate moisture led to regime shifts in Honghe and Shenjiadian wetlands. Therefore, the ecosystem were in the conservation phase before the late 1970s, and were in the reorganization phase after 1990 CE. The ecosystems had high resilience and a stable state at the early conservation phase, and its characteristics can be used as reference conditions for wetland restoration. The reference water level was 11-13 cm and the NH4-N ranged from 0.8 to 1.2 mg/L. The dominant vegetation was Drepanocladus aduncus and the dominant diatom was Pinnularia brevicostata. The referred enrich factors of nitrogen, phosphorus, and heavy metals were under 4.45, 2.12, and 1.11, respectively. Considering both adaptive cycle and resilience to define reference conditions can provide insight into the future restoration and management of wetland ecosystems worldwide.
关键词	EARLY-WARNING SIGNALS REGIME SHIFT SANJIANG PLAIN THRESHOLDS DEPOSITION AUSTRALIA FRAMEWORK SERVICES
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Meteorology & Atmospheric Sciences
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000777489800001
来源期刊	EARTHS FUTURE
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/260587
推荐引用方式 GB/T 7714	Liu, Hanxiang,Gao, Chuanyu,Wang, Guoping. Considering the Adaptive Cycle and Resilience of the Ecosystem to Define Reference Conditions for Wetland Restoration[J]. 中国科学院青藏高原研究所,2022,10(4).
APA	Liu, Hanxiang,Gao, Chuanyu,&Wang, Guoping.(2022).Considering the Adaptive Cycle and Resilience of the Ecosystem to Define Reference Conditions for Wetland Restoration.EARTHS FUTURE,10(4).
MLA	Liu, Hanxiang,et al."Considering the Adaptive Cycle and Resilience of the Ecosystem to Define Reference Conditions for Wetland Restoration".EARTHS FUTURE 10.4(2022).