Ecological regionalization and overview of the Loess Plateau

Yanfen, 杨艳芬 Yang; Bing, 王兵 Wang; Guoliang, 王国梁 Wang; Zongshan, 李宗善 Li

doi:10.5846/stxb201909031825

Cited by 5 publications

(14 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…While D had large areas transition into construction with urbanization (Chen et al, 2020), there were no clear negative impacts on vegetation resistance. The C sub-region also had a high proportion of grassland; however, there was a lower vegetation cover level (Yang et al, 2019) and a higher degree of drought (Liu et al, 2016) compared to other sub-regions. Zhao et al (2018) found that vegetation dynamics in the northwestern Loess Plateau had a strong relationship with drought.…”

Section: Vegetation Response To Meteorological Droughtmentioning

confidence: 96%

“…From Figure 13a, sub-regions A1 and A2 mainly showed hydraulic erosion. From Figure 12, sub-regions A1 and A2 also had higher proportions of grassland land cover, but soil erosion may be the main impact on vegetation growth (Yang et al, 2019). From Figure 1a, sub-regions A1 showed higher elevation and high-slope gullies (Yang et al, 2019) geographical conditions .…”

Section: Vegetation Response To Meteorological Droughtmentioning

confidence: 97%

“…From Figure 12, sub-regions A1 and A2 also had higher proportions of grassland land cover, but soil erosion may be the main impact on vegetation growth (Yang et al, 2019). From Figure 1a, sub-regions A1 showed higher elevation and high-slope gullies (Yang et al, 2019) geographical conditions . Therefore, soil erosion might be an important factor that negatively affect forest growth in A1.…”

Section: Vegetation Response To Meteorological Droughtmentioning

confidence: 97%

“…For A1 and A2, reducing hydraulic soil erosion for vegetation growth was more important than improving vegetation resistance (Jiang et al, 2019;Yang et al, 2019). Zhang, Song, et al (2021) found that shrub vegetation was more effective than other vegetation types at resisting soil erosion in the Loess Plateau.…”

Section: Strategies For Land Cover Change From Human Activity To Improve Vegetation Resistancementioning

confidence: 99%

“…Although, we found that the resistance ability of vegetation was impacted by the land cover change, the sub-regions also had different response times in different periods (Figure 7). To develop strategic land cover changes from human activities to improve the resistance of vegetation, it is important to analyze different sub-regions characteristics of the environment (Ding, Xu, et al, 2021;Yang et al, 2019).…”

Section: Vegetation Response To Meteorological Droughtmentioning

confidence: 99%

See 4 more Smart Citations

Estimating land use/land cover change impacts on vegetation response to drought under ‘Grain for Green’ in the Loess Plateau

Ding

Wang

et al. 2021

Land Degrad Dev

View full text Add to dashboard Cite

A series of serious environmental problems have appeared in North China, especially in the Loess Plateau. The 'Grain for Green Program' project has been implemented to address issues caused by vegetation degradation. Human beings play a key moderating role between drought and vegetation; however, it is not clearly understood how typical land cover changes from human activities impact the ability of vegetation to resist drought. To represent meteorological drought and vegetation dynamics, this study applied the standardized precipitation and evapotranspiration index and solarinduced chlorophyll fluorescence. We investigated the vegetation response relationship to drought and how changing land cover affected it. The land cover changes associated with strategic human activity were also analyzed using the response relationship and environmental characteristics. Our results showed that land cover changes contributed to abnormal changes in vegetation dynamics and type. From2001 to 2016, meteorological drought showed an insignificant difference in Loess Plateau. To a certain extent, land cover changes could extend vegetation response time with the implementation of the 'Grain for Green Progam'. Response time to the drought of different vegetation types in both changed and unchanged land cover showed an increasing trend from early-period to later-period. Similar response time to drought was among cropland, forest, grassland, construction land, and desert of unchanged land cover vegetation in different Grain for Green periods. Forest cover effectively improved vegetation response time and reduced vulnerability. This study improves the understanding of vegetation change and offers guidance for environmental protection projects and evaluating ecological restoration.

show abstract

Section: Vegetation Response To Meteorological Droughtmentioning

confidence: 96%

Section: Vegetation Response To Meteorological Droughtmentioning

confidence: 97%

Section: Vegetation Response To Meteorological Droughtmentioning

confidence: 97%

Section: Strategies For Land Cover Change From Human Activity To Improve Vegetation Resistancementioning

confidence: 99%

Section: Vegetation Response To Meteorological Droughtmentioning

confidence: 99%

See 3 more Smart Citations

Estimating land use/land cover change impacts on vegetation response to drought under ‘Grain for Green’ in the Loess Plateau

Ding

Wang

et al. 2021

Land Degrad Dev

View full text Add to dashboard Cite

show abstract

Ecological restoration success on the Loess Plateau of China: A qualitative and quantitative exploration based on rephotography

Liu,

Gao,

Chen

et al. 2024

Earth Surf Processes Landf

View full text Add to dashboard Cite

Ecological restoration programs such as the “Grain for Green Project” (GFGP) have significantly reduced soil erosion and increased vegetation cover on the Loess Plateau (LP) of China over the last decades. The LP has become the paragon of ecological restoration and soil and water conservation across the world and has been highlighted by numerous reports in the literature. However, there is a lack of “seeing is believing” evidence (that is, a picture is worth a thousand words) depicting the effectiveness of the ecological restoration on the LP. Rephotography (repeat photography) was used in this study to compare historical and current photographs of the same locations to explore the landscape changes associated with ecological restoration. Twenty‐nine photo pairs between 1925 and 2021 were compiled and combined with satellite imagery and the deduced Normalized Difference Vegetation Index (NDVI) between 1986 and 2021. This allowed the establishment of a rephotography library reflecting the achievements of ecological remediation and reconstruction on the LP. This in turn provides intuitive and detailed evidence for the ecological environment construction of the LP and resonates with the notion of “lucid waters and lush mountains being invaluable assets”. In addition to presenting a great opportunity to investigate landscape change over time, which is difficult to discern using other approaches, the study provides a scientific reference and a basis for government decision‐making. The potential use of rephotography for calibrating remote sensed data was also discussed. Good agreement was found between the NDVI derived from rephotography of large areas and NDVI derived from satellite imageries, which may facilitate the accurate reconstruction of time series NDVI.

show abstract

Assessment of land degradation risks in the Loess Plateau

Yu,

Deng,

et al. 2024

Land Degrad Dev

View full text Add to dashboard Cite

Human activity and climate change are degrading the environmentally fragile Loess Plateau in dry and semiarid regions. Land deterioration threatens human and ecological existence. To prevent additional land degradation and ensure the ecological development and quality of arable land in the region, China launched “Grain for Green” in the late 1990s. This effort greatly boosted Loess Plateau vegetation. However, land degradation is complex, and so we must also examine natural and social variables to prevent additional degradation. Thus, this study presents a comprehensive index system to quantify land degradation on the Loess Plateau and uses machine learning to anticipate high‐risk locations. The project improved land degradation, and the spatial distribution of degradation risk is high in the northern and low in the eastern and southern regions of the Plateau. Gross Domestic Product and population density are the main drivers of land degradation. Industrialization and urbanization have raised the risk of land degradation, which now accounts for 1%–2% of the area. This study emphasizes sustainable land management in the Loess Plateau, a critical area for sustainable development in China. The integrated assessment indicator system and random forest modeling machine learning help grasp the current status and future preventive measures. The outcome of this study advances the Loess Plateau land degradation research and sustainable land management. The research findings possess significant scientific reference value in terms of mitigating and managing land degradation in environmentally vulnerable regions worldwide.

show abstract

Ecological regionalization and overview of the Loess Plateau

Cited by 5 publications

References 0 publications

Estimating land use/land cover change impacts on vegetation response to drought under ‘Grain for Green’ in the Loess Plateau

Estimating land use/land cover change impacts on vegetation response to drought under ‘Grain for Green’ in the Loess Plateau

Ecological restoration success on the Loess Plateau of China: A qualitative and quantitative exploration based on rephotography

Assessment of land degradation risks in the Loess Plateau

Contact Info

Product

Resources

About