Prediction of groundwater depth in an arid region based on maximum tree height

Yang, Xiao Dong; Qie, Ya Dong; Teng, Dexiong; Ali, Arshad; Xu, Yan; Bolan, Nanthi; Liu, Wei Guo; Lv, Guang Hui; Li, Gang; Yang, Saini; Simayi, Zibibula

doi:10.1016/j.jhydrol.2019.04.022

Cited by 17 publications

(7 citation statements)

References 37 publications

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“…Our result showed that the contribution of per capita possession of water resources to urbanization was 14.18%, and it has the second highest profit among geographic environmental factors (Fig 8). This was probably because Xinjiang is located in an inland arid region, where water is one of the most important limiting factors for population migration, industrial and agricultural production and urbanization [42,62,63].…”

Section: Plos Onementioning

confidence: 99%

Evaluating the influencing factors of urbanization in the Xinjiang Uygur Autonomous Region over the past 27 years based on VIIRS-DNB and DMSP/OLS nightlight imageries

Yang

Gong

2020

PLoS ONE

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The Xinjiang Uygur Autonomous Region is the core economic area of the "Silk Road Economic Belt". The urbanization of this region plays a highly important role in economic and cultural communications between China, Central Asia and Europe. However, the influencing factors of urbanization in this region remain unclear. In this study, we presented a new modified thresholding method to extract the urban built-up areas from two nightlight remote sensing data sources, i.e., the DMSP/OLS and VIIRS/DNB nightlight imageries. Then, geographical detectors and hierarchical partitioning analysis were used to test the influences of anthropogenic and geographic environmental factors on urbanization. Our results showed that the relative error between the actual and the extracted urban built-up areas calculated using our method ranged from-0.30 to 0.27 in two biggest sample cities (Urumqi and Karamay) over the last 27 years. These errors were lower than those calculated by using the traditional method (-0.66 � relative error �-0.11). The expansion of urban built-up areas was greater in the northern regions than the southern regions of Xinjiang, as well as was greater in large cities than small and medium-sized cities. The influence of anthropogenic factors on urbanization has continually decreased over the past 27 years, while the influence of geographical environmental factors has increased. Among all influencing factors, fixed asset investment, topographic position index and per capita possession of water resources have the high contributions on urbanization, accounting for 18.75%, 15.62% and 14.18% of the variance of urbanization, respectively. Here, we provided a new method for studying urbanization by using remote sensing data. Our results are helpful for understand the driving factors of urbanization, and they provide guidance for the sustainable economic development of the Xinjiang Uygur Autonomous Region.

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Section: Plos Onementioning

confidence: 99%

Evaluating the influencing factors of urbanization in the Xinjiang Uygur Autonomous Region over the past 27 years based on VIIRS-DNB and DMSP/OLS nightlight imageries

Yang

Gong

2020

PLoS ONE

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“…The desert ecosystem is characterized by drought, little rain, large evaporation, serious wind erosion, low species diversity and productivity, which makes it very sensitive to human production activities. Moreover, its balance is easily broken and resilience is weak ( Yang et al 2019a ). Therefore, by studying the relationships between the stoichiometric ratios of the leaf and soil and the species diversity, we can further reveal the relationships between vegetation and soil in desert ecosystems, as well as the life strategies of vegetation in arid areas.…”

Section: Introductionmentioning

confidence: 99%

Impacts of plant and soil stoichiometry on species diversity in a desert ecosystem

Jiang

et al. 2022

AoB PLANTS

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Plant and soil stoichiometric ratios can be used to explain changes in the structural and functional characteristics of plant communities. Exploring the relationships between the stoichiometric ratios and plant diversity is helpful to further elucidate the effects of soil and nutrient constraints on community vegetation. However, such studies remain poorly understood in desert ecosystems. In this study, we analyzed the effects of soil moisture and salt content on soil and leaf stoichiometry, species diversity and their relationships in the desert ecosystem of the Ebinur Lake basin. The results showed that: (1) compared with the low soil moisture and salinity (SW2) environment, the soil and leaf C, N, P contents and soil stoichiometric ratios were larger in the high soil moisture and salinity (SW1) environment, and the leaf stoichiometric ratios were smaller. (2) in SW1 environment, species diversity was negatively correlated with soil C:N and C:P, but weakly correlated with soil stoichiometric ratios in SW2 environment. In addition, the relationships between it and leaf stoichiometric ratios were reversed in different moisture and salinity environments. (3) structural equation modeling showed that leaf C:P, C:N and soil C:P had strong effects on species diversity. This research aims to provide a scientific reference for maintaining plant diversity, vegetation reconstruction and ecosystem restoration in desert areas, and enrich the ecological stoichiometric theory of desert ecosystems.

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“…The Ebinur Lake Wetland National Nature Reserve (ELWNNR) is a treasure house of biodiversity in arid desert areas of the Xinjiang Uygur Autonomous Region in the NW China, which provides a good place for studying the maintenance of diversity on community stability in arid desert ecosystem ( Jiang L. et al, 2022 ). Affected by arid climatic conditions, the local ecosystem is relatively sensitive and vulnerable to environmental changes ( Yang et al, 2019 ; Token et al, 2022 ). Although the relationship between plant diversity and community stability in arid desert system have been reported, they mainly focus on the effects of species diversity and functional diversity on community stability under different water and salt gradients, whereas did not discuss the influences of phylogenetic and beta diversity.…”

Section: Introductionmentioning

confidence: 99%

Different contributions of plant diversity and soil properties to the community stability in the arid desert ecosystem

et al. 2022

Self Cite

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As a one of the focuses of ecological research, understanding the regulation of plant diversity on community stability is helpful to reveal the adaption of plant to environmental changes. However, the relationship between plant diversity and community stability is still controversial due to the scale effect of its influencing factors. In this study, we compared the changes in community stability and different plant diversity (i.e., species, functional, and phylogenetic diversities) between three communities (i.e., riparian forest, ecotone community, and desert shrubs), and across three spatial scales (i.e., 100, 400, and 2500 m2), and then quantified the contribution of soil properties and plant diversity to community stability by using structural equation model (SEM) in the Ebinur Lake Basin Nature Reserve of the Xinjiang Uygur Autonomous Region in the NW China. The results showed that: (1) community stability differed among three communities (ecotone community > desert shrubs > riparian forest). The stability of three communities all decreased with the increase of spatial scale (2) species diversity, phylogenetic richness and the mean pairwise phylogenetic distance were higher in ecotone community than that in desert shrubs and riparian forest, while the mean nearest taxa distance showed as riparian forest > ecotone community > desert shrubs. (3) Soil ammonium nitrogen and total phosphorus had the significant direct negative and positive effects on the community stability, respectively. Soil ammonium nitrogen and total phosphorus also indirectly affected community stability by adjusting plant diversity. The interaction among species, functional and phylogenetic diversities also regulated the variation of community stability across the spatial scales. Our results suggested that the effect of plant diversities on community stability were greater than that of soil factors. The asynchronous effect caused by the changes in species composition and functional traits among communities had a positive impact on the stability. Our study provided a theoretical support for the conservation and management of biodiversity and community functions in desert areas.

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Prediction of groundwater depth in an arid region based on maximum tree height

Cited by 17 publications

References 37 publications

Evaluating the influencing factors of urbanization in the Xinjiang Uygur Autonomous Region over the past 27 years based on VIIRS-DNB and DMSP/OLS nightlight imageries

Evaluating the influencing factors of urbanization in the Xinjiang Uygur Autonomous Region over the past 27 years based on VIIRS-DNB and DMSP/OLS nightlight imageries

Impacts of plant and soil stoichiometry on species diversity in a desert ecosystem

Different contributions of plant diversity and soil properties to the community stability in the arid desert ecosystem

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