Evolution of soil salinization under the background of landscape patterns in the irrigated northern slopes of Tianshan Mountains, Xinjiang, China

Zhuang, Qingwei; Shao, Zhenfeng; Huang, Xiao; Zhang, Ya; Wu, Wenfu; Feng, Xiaoxiao; Lv, Xianwei; Qiu-lin, Ding; Cai, Bowen; Altan, Orhan

doi:10.1016/j.catena.2021.105561

Cited by 39 publications

(14 citation statements)

References 50 publications

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“…NGP is affected by nature, economy, society, and institutions. Owing to the comprehensive effect of various factors, the driving factors of NGP are distinct at different scales, but they mainly include subjective factors from farmers themselves, the objective natural environment of cultivated land, and socioeconomic factors [45][46][47][48][49].…”

Section: Drivers Of Ngpmentioning

confidence: 99%

Spatiotemporal Evolution of Non-Grain Production of Cultivated Land and Its Underlying Factors in China

Zhu

Dai

et al. 2022

IJERPH

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Food security is the foundation of development. We comprehensively characterized the spatiotemporal patterns of non-grain production (NGP) areas in China and elucidated the underlying factors driving NGP. Our objectives were to map NGP on cultivated land (NGPCL) in China, and to quantify its spatiotemporal patterns, to investigate the factors underlying NGP spatial differentiation, and to provide a scientific basis for developing NGP management policies and reference points for protecting cultivated land in other countries. We mapped NGPCL in China from 2000 to 2018 using remote sensing and geographic information system data. The spatiotemporal evolution of the NGP rate (NGPR) was also investigated. The dominant factors driving NGP progression and associated interactions were identified using geographic detectors. From 2000 to 2018, the NGPR gradually decreased from 63.02% to 52.82%. NGPR was high in the west and low in the east, and its spatial differentiation and clustering patterns were statistically significant. Precipitation, temperature, altitude, and soil carbon content were the dominant factors affecting the spatial differentiation in NGPR. The interaction between these factors enhanced the spatial differentiation.

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Section: Drivers Of Ngpmentioning

confidence: 99%

Spatiotemporal Evolution of Non-Grain Production of Cultivated Land and Its Underlying Factors in China

Zhu

Dai

et al. 2022

IJERPH

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“…At the same time, soluble sulfate chloride easily accumulates in the middle and lower part of the abandoned cultivated land, the fluvial fan, or the pluvial alluvial plain; chloride or sulfate chloride is deposited along the fan margin below the fan margin zone. Salt in mountainous areas is brought to irrigation by surface water and groundwater, which becomes a source of soil salt supply (Zhuang et al, 2021). It should be noted that relatively high groundwater depth and high salinity are additional factors that cannot be ignored (Hu et al, 2012;Zhuang et al, 2021).…”

Section: Research On Soil Salinization In Xinjiangmentioning

confidence: 99%

An over review of desertification in Xinjiang, Northwest China

Lei

Gao

2022

J. Arid Land

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Desertification research in arid and semi-arid regions has always been actively pursued. In China, the problem of desertification in Xinjiang has also received extensive attention. Due to its unique geography, many scholars have conducted corresponding research on the desertification status of Xinjiang. In this paper, we comprehensively reviewed desertification in Xinjiang, and compared the underlying mechanisms of desertification and the status of desertification conditions after the implementation of ecological control projects. On a larger scale, desertification in Xinjiang can be divided into soil salinization inside oases and sandy desertification on the edges of oases. Human activities are considered the main cause of desertification, but natural factors also contribute to varying degrees. Research on the mechanisms of desertification has effectively curbed the development of desertification, but unreasonable use of land resources accelerates the risk of desertification. For desertification control, there are several key points. First, desertification monitoring and the early warning of desertification expansion should be strengthened. Second, monitoring and reversing soil salinization also play an important role in the interruption of desertification process. It is very effective to control soil salinization through biological and chemical methods. Third, the management of water resources is also essential, because unreasonable utilization of water resources is one of the main reasons for the expansion of desertification in Xinjiang. Due to the unreasonable utilization of water resources, the lower reaches of the Tarim River are cut off, which leads to a series of vicious cycles, such as the deterioration of ecological environment on both sides of the river and the worsening of desertification. However, in recent years, various desertification control projects implemented in Xinjiang according to the conditions of different regions have achieved remarkable results. For future studies, research on the stability of desert-oasis transition zone is also significantly essential, because such investigations can help to assess the risk of degradation and control desertification on a relatively large scale.

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“…With population aggregation and economic development, the expansion of cities and agriculture has transformed natural ecosystems into human-driven or naturally coupled ecosystems [16,17]. Many studies have shown that anthropogenic activities play an important role in increasing biomass and improving vegetation productivity and cover [5,18,19]. However, the loss of cultivated land caused by extensive construction activities is considered one of the most serious problems limiting food security in China [20].…”

Section: Introductionmentioning

confidence: 99%

Where Anthropogenic Activity Occurs, Anthropogenic Activity Dominates Vegetation Net Primary Productivity Change

Xie

Zhuang

et al. 2022

Remote Sensing

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Anthropogenic activities and climate change affect the type, structure and function of ecosystems, resulting in important changes in vegetation net primary productivity (NPP). Therefore, in this study we used the vegetation photosynthesis model (VPM) to reveal the spatiotemporal variations in NPP in Xinjiang from 2000 to 2019. The impacts of climate change and anthropogenic activities on NPP changes were quantified and separated by the residual analysis-control variables (RES-CON) method. The results showed that the average NPP in Xinjiang increased by 17.77% from 2000 to 2019. Anthropogenic activities and climate change generally had a positive impact on NPP from 2000 to 2019. The most important anthropogenic activity was land use and land cover (LULC) transformation from grass to arable land, which significantly increased vegetation productivity. Regarding climate change, precipitation has played a significant role in promoting the productivity of vegetation. Overall, the average contribution of climate change (temperature and precipitation) to NPP variation (21.44%) is much greater than the contribution of anthropogenic activities (3.46%), but in areas where anthropogenic activities occur, the average contribution of anthropogenic activities to NPP variation (75.01%) is much greater than the average contribution of climate change (15.53%). Where there are no anthropogenic activities, the average contribution of climate change to NPP variation is 21.72%. In summary, anthropogenic activities are the main driver of NPP variation in areas where anthropogenic activities occur, while the total area in Xinjiang where climate change is the most important driver is larger than the total area where anthropogenic activities are the dominant driver.

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Evolution of soil salinization under the background of landscape patterns in the irrigated northern slopes of Tianshan Mountains, Xinjiang, China

Cited by 39 publications

References 50 publications

Spatiotemporal Evolution of Non-Grain Production of Cultivated Land and Its Underlying Factors in China

Spatiotemporal Evolution of Non-Grain Production of Cultivated Land and Its Underlying Factors in China

An over review of desertification in Xinjiang, Northwest China

Where Anthropogenic Activity Occurs, Anthropogenic Activity Dominates Vegetation Net Primary Productivity Change

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