Ecological risk and regional differentiation in the Qinghai-Tibet Plateau

Yin, Liu; LIU, Feng-gui; Zhou, Qiang; Chen, Qiong; WANG, Sheng-zhen; Guo, Rong; Ma, Weidong

doi:10.31497/zrzyxb.20211216

Cited by 7 publications

(7 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For decades, 52 NNRs have acted as the cornerstone of conservation practice on the Qinghai-Tibet Plateau, and these have received substantial financial aid from the government (Fu et al, 2021;Liu et al, 2021). However, this plateau has recently been experiencing habitat fragmentation, alien invasion, and local ecosystem degradation (Fu et al, 2021), which indicates that merely protecting NNRs is not sufficient to maintain its ecological health.…”

Section: Methodology Study Areamentioning

confidence: 99%

Spatiotemporal Variations of Human Pressure on Key Biodiversity Areas in the Qinghai–Tibet Plateau: A Comparative Analysis

2022

View full text Add to dashboard Cite

A key biodiversity area (KBA) is one of the important emerging area-based conservation measures that is being implemented recently in China; however, the human pressure faced by a KBA is still unclear. This study analyzed the spatiotemporal variation of human pressure on KBAs from 1990 to 2017 and compared it with the human pressure on national natural reserves (NNRs) through a case study of the Qinghai–Tibet Plateau. In addition, changes in the trend of human pressure before and after 2010 were analyzed to examine the influence of conservation policies on human pressure. Results showed that human pressure on KBAs and NNRs gradually increased from 1990 to 2017. Furthermore, the growth rates and mean values of human pressure in KBAs were higher than those in NNRs. After the implementation of conservation policies in 2010, the growth rates of human pressure on both KBAs and NNRs have significantly slowed, and the areas with negative growth in both KBAs and NNRs have gradually expanded. In addition to providing an understanding of the changing spatiotemporal trends of human pressure on KBAs, this study can serve as a reference to formulate policies for the improvement of the effectiveness of conservation.

show abstract

Section: Methodology Study Areamentioning

confidence: 99%

Spatiotemporal Variations of Human Pressure on Key Biodiversity Areas in the Qinghai–Tibet Plateau: A Comparative Analysis

2022

View full text Add to dashboard Cite

show abstract

“…In addition to drainage for grazing, some additional drainage and extraction operations occurred for peat mining between the 1980s and 2002 (Zhang et al, 2011), with an estimated 138 large‐ and 82 medium‐scale peat mines on the Zoige Plateau (Liu & Bai, 2006). However, due to their damaging impacts, peat mining ceased in 2003 (Zhang et al, 2011).…”

Section: Land Management In Zoige Peatlandsmentioning

confidence: 99%

The impacts of land‐use and climate change on the Zoige peatland carbon cycle: A review

Gaffney,

Tang,

et al. 2023

WIREs Climate Change

View full text Add to dashboard Cite

The Zoige peatlands are the largest peatland area in China, and the largest high‐altitude peatland in the world. As with many peatlands worldwide, degradation from land management and climate change mean that the intact Zoige peatland area has decreased, potentially reducing the carbon (C) sink function and ecosystem services. This review summarizes current knowledge of the impacts of land‐use and climate change on the Zoige peatland C cycle in a global perspective and identifies future research and management directions. The existing literature suggests that artificial drainage carried out to lower water tables and improve grazing has a significant impact on the peatland C cycle. Drained and degraded areas may act as a net C source, through increased CO2 emissions, although the overall C balance of the Zoige peatlands is likely still a net C sink. Future climate change may also impact upon the peatland C cycle. Warming of 2°C may significantly reduce the strength of the C sink of intact peatland areas, which may shift the overall Zoige peatland C cycle balance to a net C source. The effect of warming on degraded Zoige peatlands is a major uncertainty, although the global literature suggests warming effects may be greater in degraded peatlands. Restoration of degraded peatlands (by blocking drains) may help reverse some of the impacts of degradation and gradually recover C sink function. However, there are fewer studies in Zoige peatlands than elsewhere. We conclude with several specific suggestions for future research on the peatland C cycle.This article is categorized under: Paleoclimates and Current Trends > Modern Climate Change Assessing Impacts of Climate Change > Observed Impacts of Climate Change Climate, Ecology, and Conservation > Observed Ecological Changes

show abstract

“…The climate is arid, with an annual sunshine duration exceeding 2886 h, an average annual temperature below 0°C, and average precipitation of about 400 mm, with no absolute frost-free period. The vegetation is diverse, with alpine meadows as the dominant type and Carex steppe as the secondary type (Guo et al, 2018;Liu et al, 2021). Soil types are complex and diverse.…”

Section: Study Areamentioning

confidence: 99%

Analysis of morphological characteristics of gravels based on digital image processing technology and self-organizing map

Qiu³

et al. 2023

J. Arid Land

View full text Add to dashboard Cite

A comprehensive understanding of spatial distribution and clustering patterns of gravels is of great significance for ecological restoration and monitoring. However, traditional methods for studying gravels are low-efficiency and have many errors. This study researched the spatial distribution and cluster characteristics of gravels based on digital image processing technology combined with a self-organizing map (SOM) and multivariate statistical methods in the grassland of northern Tibetan Plateau. Moreover, the correlation of morphological parameters of gravels between different cluster groups and the environmental factors affecting gravel distribution were analyzed. The results showed that the morphological characteristics of gravels in northern region (cluster C) and southern region (cluster B) of the Tibetan Plateau were similar, with a low gravel coverage, small gravel diameter, and elongated shape. These regions were mainly distributed in high mountainous areas with large topographic relief. The central region (cluster A) has high coverage of gravels with a larger diameter, mainly distributed in high-altitude plains with smaller undulation. Principal component analysis (PCA) results showed that the gravel distribution of cluster A may be mainly affected by vegetation, while those in clusters B and C could be mainly affected by topography, climate, and soil. The study confirmed that the combination of digital image processing technology and SOM could effectively analyzed the spatial distribution characteristics of gravels, providing a new mode for gravel research.

show abstract

Ecological risk and regional differentiation in the Qinghai-Tibet Plateau

Cited by 7 publications

References 17 publications

Spatiotemporal Variations of Human Pressure on Key Biodiversity Areas in the Qinghai–Tibet Plateau: A Comparative Analysis

Spatiotemporal Variations of Human Pressure on Key Biodiversity Areas in the Qinghai–Tibet Plateau: A Comparative Analysis

The impacts of land‐use and climate change on the Zoige peatland carbon cycle: A review

Analysis of morphological characteristics of gravels based on digital image processing technology and self-organizing map

Contact Info

Product

Resources

About