干旱区生态环境知识资源中心(Arid): The Restoration Potential of the Grasslands on the Tibetan Plateau

Arid

DOI	10.3390/rs14010080
	The Restoration Potential of the Grasslands on the Tibetan Plateau
	Wang, Ruijing; Feng, Qisheng; Jin, Zheren; Liang, Tiangang
通讯作者	Feng, QS (corresponding author)，Lanzhou Univ, Key Lab Grassland Livestock Ind Innovat, Engn Res Ctr Grassland Ind,Minist Educ,Coll Pasto, State Key Lab Grassland Agroecosyst,Minist Agr &, Lanzhou 730000, Peoples R China.
来源期刊	REMOTE SENSING
EISSN	2072-4292
出版年	2022
卷号	14 期号:1
英文摘要	While the alpine grassland ecosystems on the Tibetan Plateau (TP) have generally improved in recent years, some grasslands still suffer from varying degrees of degradation. Studying the restoration potential (R) of the grasslands on the TP is crucial to the conservation and restoration of its alpine grassland ecosystems. Few studies have assessed the restoration value of the alpine grasslands on the TP. We attempt to estimate the actual (ANPP) and potential net primary productivity (PNPP) of the grasslands on the TP. On this basis, we defined R as the gap between the current and highest achievable levels of restoration of a grassland. Then, R estimates were yielded for the alpine grasslands on the TP, which we used to analyze the restoration value of these grasslands. Specifically, based on the meteorological data for the period 2001-2019, in conjunction with remote-sensing imagery acquired by a moderate-resolution imaging spectroradiometer for the same period, the Carnegie-Ames-Stanford approach model was selected to produce ANPP estimates for the grasslands on the TP. Then, the Thornthwaite memorial model, the principle of similar habitats, and the Chikugo model, were employed to generate PNPP estimates for these grasslands. In addition, the R of these grasslands was then assessed based on the difference between their PNPP and ANPP. The main results are summarized as follows. (1) A multiyear mean R of 332.33 g C center dot m(-2) (81.59% of the ANPP) was determined for the grasslands on the TP over the period 2001-2019. A notable spatial distribution pattern of high Rs in the southwestern, eastern and middle parts of the TP, and low Rs in the northwestern part of the TP were also identified. Most of the grasslands in areas such as the southern part of Nagqu, the southwestern part of Ngari, Xigaze, Garze Tibetan Autonomous Prefecture, Aba Tibetan and Qiang Autonomous Prefecture, Gannan Tibetan Autonomous Prefecture, Huangnan Tibetan Autonomous Prefecture, Haibei Tibetan Autonomous Prefecture, Guoluo Tibetan Autonomous Prefecture and Yushu Tibetan Autonomous Prefecture were found to have high restoration value. (2) Grasslands with a stable R account were the highest proportion (76.13%) of all the grasslands on the TP, followed by those with a decreasing R (19.62%) and those with an increasing R (4.24%). Grasslands with an increasing R were mainly concentrated in the southern part of Xigaze, and parts of Yushu Tibetan Autonomous Prefecture, Guoluo Tibetan Autonomous Prefecture and Garze Tibetan Autonomous Prefecture. (3) Analysis based on the local conditions of the TP revealed a high restoration value for three types of grassland (i.e., alpine meadows, mountain meadows, and temperate meadow steppes), the grasslands distributed at altitudes of 3000-4000 m, and the grasslands located in the warm temperate zone. The results of this study are expected to provide scientific and theoretical support for the formulation of policies and measures aimed at conserving grasslands, as well as restoring ecosystems and degraded grasslands on the TP.
英文关键词	Tibetan Plateau restoration potential net primary productivity potential net primary productivity dynamic variation
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000751439000001
WOS关键词	NET PRIMARY PRODUCTIVITY ; ALPINE GRASSLANDS ; CLIMATE-CHANGE ; DEGRADATION ; CARBON ; CHINA ; DESERTIFICATION ; PRECIPITATION ; IMPACTS ; ROLES
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Remote Sensing ; Imaging Science & Photographic Technology
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/376723
作者单位	[Wang, Ruijing; Feng, Qisheng; Jin, Zheren; Liang, Tiangang] Lanzhou Univ, Key Lab Grassland Livestock Ind Innovat, Engn Res Ctr Grassland Ind,Minist Educ,Coll Pasto, State Key Lab Grassland Agroecosyst,Minist Agr &, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Wang, Ruijing,Feng, Qisheng,Jin, Zheren,et al. The Restoration Potential of the Grasslands on the Tibetan Plateau[J],2022,14(1).
APA	Wang, Ruijing,Feng, Qisheng,Jin, Zheren,&Liang, Tiangang.(2022).The Restoration Potential of the Grasslands on the Tibetan Plateau.REMOTE SENSING,14(1).
MLA	Wang, Ruijing,et al."The Restoration Potential of the Grasslands on the Tibetan Plateau".REMOTE SENSING 14.1(2022).