Analysis of land cover changes in southwestern China since the 1990s

Zhaoju, 郑朝菊 Zheng; Yuan, 曾源 Zeng; Zhao, Yujin; Wenwen, 高文文 Gao; Dan, 赵旦 Zhao; Bingfang, 吴炳方 Wu

doi:10.5846/stxb201511102277

Cited by 4 publications

(1 citation statement)

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“…The Northwestern Sichuan Plateau (NSP), located on the northeastern edge of the Tibetan Plateau, plays a crucial role as an ecological barrier and water conservation area in the upper reaches of the Yangtze River and the Yellow River, and is also considered ecologically fragile and sensitive to climate change [21,22]. Gaining an in-depth understanding of WUE and its changing patterns is of great importance; it not only helps enhance the ability to predict and mitigate the adverse impacts of climate change on the ecosystem, but also promotes the healthy development of the ecological environment.…”

Section: Introductionmentioning

confidence: 99%

Spatiotemporal Variation of Vegetation Water Use Efficiency and Its Response to Extreme Climate in Northwestern Sichuan Plateau

Wang,

Feng,

Cui

et al. 2023

Sustainability

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The Northwestern Sichuan Plateau, characterised by complex topography, is located on the northeastern edge of the Tibetan Plateau where ecosystems are rapidly changing in response to climate change. However, the spatiotemporal characteristics of water use efficiency (WUE) and its response to climate change remain unclear, especially different responses to changes in climate mean and extremes. In this study, we found that the seasonal variation of WUE for different types of vegetation demonstrates a “unimodal” pattern, with high values during May to September. The variation of WUE is largely dependent on altitude. The annual WUE showed an overall increasing trend from 2001 to 2021 for most types of vegetation, while a decreasing trend was found for wetland, and grassland had a stronger adaptability to altitude and climate change. Mean climatic variables exerted stronger impacts on WUE than climate extremes, and mean temperature change had a stronger impact on WUE than precipitation. However, the synergistic effects of climate extremes and mean climate exerted significant impacts on WUE, with extreme cold events and mean precipitation events generally being unfavourable for an increase in WUE. The WUE of cropland and forest land demonstrated more sensitive responses to climate extremes than other types. The response of the same type of vegetation to climate extremes has obvious regional heterogeneity. However, the diurnal range of temperature, the length of the growing season, and the persistent humidity index had significant influences on the change of WUE for the entire region.

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Section: Introductionmentioning

confidence: 99%

Spatiotemporal Variation of Vegetation Water Use Efficiency and Its Response to Extreme Climate in Northwestern Sichuan Plateau

Wang,

Feng,

Cui

et al. 2023

Sustainability

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What is the relationship between ecosystem services and urbanization? A case study of the mountainous areas in Southwest China

Wang

2019

J. Mt. Sci.

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Quantifying and Evaluating the Cultivated Areas Suitable for Fallow in Chongqing of China Using Multisource Data

Shi

Wang

et al. 2021

Land

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The quantitative evaluation of the suitability of land fallow is of great significance to the effective implementation of fallow system in rural China. The purpose of this study is to systematically evaluate the cultivated areas suitable for fallow in Chongqing, China. The results show that: (1) a comprehensive index of cultivated land fallow (ILF) was developed by employing a series of multi—source data, and the ILF has been proven as an effective proxy to identify the cultivated areas suitable for fallow; (2) cultivated land with ILF values above the average value accounts for 34.38% (9902 km2) of the total cultivated land; (3) the ILF is negatively correlated with the population density, transportation proximity, and proportion of inclined area. This study argued that the ILF can reflect the cultivated areas suitable for fallow in Chongqing and can provide guidance for the spatial distribution of cultivated land fallow. The findings indicated that the differences in geographical elements between karst and non—karst areas must be further investigated, and the evaluation accuracy of the cultivated areas suitable for fallow must be improved.

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Analysis of land cover changes in southwestern China since the 1990s

Cited by 4 publications

References 0 publications

Spatiotemporal Variation of Vegetation Water Use Efficiency and Its Response to Extreme Climate in Northwestern Sichuan Plateau

Spatiotemporal Variation of Vegetation Water Use Efficiency and Its Response to Extreme Climate in Northwestern Sichuan Plateau

What is the relationship between ecosystem services and urbanization? A case study of the mountainous areas in Southwest China

Quantifying and Evaluating the Cultivated Areas Suitable for Fallow in Chongqing of China Using Multisource Data

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