Edaphic characterization and plant zonation in the Qaidam Basin, Tibetan Plateau

Xian-jie, Wang; Kong, Fanjing; Kong, Weibo; Xu, Wenning

doi:10.1038/s41598-018-20163-0

Cited by 11 publications

(6 citation statements)

References 19 publications

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“…However, the surprising finding in our results was that significantly higher diversity was found in in the middle‐ranging surface area. Large areas of water did not have the greatest diversity of aquatic plants, because some of the big lakes in our survey are salt lakes (Zheng & Liu, 2009; Zheng et al., 1989), and only a few aquatic plants could grow and reproduce in these conditions (Wang et al., 2018). The RDA analysis also showed a negative correlation between salinity and aquatic plant diversity.…”

Section: Discussionmentioning

confidence: 91%

Altitudinal diversity of aquatic plants in the Qinghai‐Tibet Plateau

et al. 2021

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Altitudinal diversity of terrestrial plants has been widely studied, whereas little is known for the patterns of aquatic plants. Here, we used a standardised field dataset to quantify the altitudinal patterns in the diversity and structure of aquatic plant assemblages, as well as the relationships between diversity indices and environmental variables. Large‐scale field investigations were carried out in 128 sites ranging from 2,280 to 5,020 m above sea level across the southern part of Qinghai‐Tibet Plateau, China. In total, 102 species of aquatic plants were recorded, belonging to 67 genera, 31 families. Five taxonomic, phylogenetic, and functional indices were calculated for each collection site. We firstly examined altitudinal patterns of these diversity indices, then quantified the variations of indices across water areas, water flow, and soil matrix, respectively. We also explored the relationships between diversity indices and environmental variables using redundancy and variance partitioning analysis, to detect the ecological variables that drove the diversity. The results showed that taxonomic, phylogenetic, and functional diversity of aquatic plants decreased with increasing altitude. Net relatedness index of aquatic plants showed a hump pattern along the altitude gradient, with a peak around 3,800 m above sea level. There was no obvious trend in the net functional relatedness index of aquatic plants with altitude. Annual mean temperature was the most important variable associated with the taxonomic, phylogenetic, and functional diversity. Water area and water flow were significantly associated with functional structure, but not phylogenetic structure. Soil matrix also correlated with aquatic plant diversity. A large‐scale altitudinal gradient can influence aquatic plant diversity. Environmental filtering and niche convergence might have played dominant roles in the increasing and decreasing stages of phylogenetic structure of aquatic plant assemblages, respectively, along the altitudinal gradient. Phylogenetic and functional structure of aquatic plant assemblages showed different patterns along the altitudinal gradient, and the environmental variables better explained the change of functional structure than did the phylogenetic variables. This is the first comprehensive study on the species, phylogeny, and function of aquatic plant assemblages along a large‐scale altitudinal gradient. We found an altitudinal decline in the diversity of aquatic plants and different patterns in the phylogenetic and functional structures of aquatic plant assemblages. These findings indicate that functional traits have high phenotypic plasticity and are more affected by environments than phylogenetic relationships which are mainly shaped by evolutionary processes.

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Section: Discussionmentioning

confidence: 91%

Altitudinal diversity of aquatic plants in the Qinghai‐Tibet Plateau

et al. 2021

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“…This could be achieved by retaining a large percentage of the annual runoff for irrigation purposes during the dry season. On another note, one of the strategies to maximizing the productivity of land resources is sustainable land allocation 38,47 . Thus, our generated suitability map ( Fig.…”

Section: Geospatial Relationship Between Cassava Yield and Environmenmentioning

confidence: 99%

Agro-Climato-Edaphic Zonation of Nigeria for a Cassava Cultivar using GIS-Based Analysis of Data from 1961 to 2017

Akinwumiju

Adelodun

Orimoogunje

2020

Sci Rep

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To investigate the optimal cultivation conditions for cassava cultivar (TMS98/0505) in Nigeria, we employed agro-ecological zoning to delineate the cultivated lands. Using GiS-based multi-criteria analysis, we researched the influence of some meteorological and soil parameters on the clone cultivation. From the multiple-parameter climato-edaphic zoning map, an average yield of 26 t ha −1 was estimated. The dry Rainforest and southern Guinea Savanna account for 80% of the favorable zones. However, with irrigation, the cultivar would yield optimally in the northern marginal zones. Further, the significant climatic parameters are sunshine hour (t = 3.292, α = 0.0064) and rainfall (t = 2.100, α = 0.0575). Thus, the potentials of a location for cassava cultivation in Nigeria largely depend on the soil conditions, sunshine hour, and rainfall. Generally, the cassava yield correlates strongly (+0.88) with the suitability map. Considering future climate variability based on the annual rainfall data, we projected an average annual rainfall range of 565-3,193 mm between 2070 and 2099. Likewise, the projected range of daily temperature for 2046-2100 is 24.57-31.94 °C. Consequently, with currently allotted farmlands, nigeria can double her current cassava production through soil fertility enhancement and irrigation.

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“…Qaidam Basin is surrounded by mountains that prevent warm, south-westerly air from entering the basin's interior, resulting in minimal precipitation (Wang et al, 2018). In winter, some rivers in the Qaidam Basin dry up, exposing their riverbeds.…”

Section: Discussionmentioning

confidence: 99%

Gut Microbiota enabled Goitered Gazelle (Gazella subgutturosa) to Adapt to Seasonal Changes

Qin¹,

Huang²,

Wang³

et al. 2020

PJZ

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Goitered gazelle (Gazella subgutturosa) mainly live in arid and semi-arid environments. In Qinghai Province, goitered gazelle are found only in the Qaidam Basin, which shows pronounced seasonal changes ranging from cold, dry winters to short, hot summers. The gut microbiota plays a very important role in host health, immunity, and digestion. Therefore, seasonal changes in gut microbiota can affect host digestion and metabolism in ways that help the host adapt to different forage conditions. Understanding the relationship between seasonal variations in the gut microbiota and host adaptability is a good basis for the protection of the goitered gazelle. Here, we present our findings on the diversity of the gut microbiota in fecal samples from wild goitered gazelle from Qiadam Basin, Qinghai-Tibet Plateau, which are the first such data to be reported. A total of 25 phyla were found, of which the dominant phyla are Firmicutes and Bacteroidetes in both summer and winter, representing more than 90% of the overall relative abundance. Diet is a key factor in shaping the gut microbiota. Because of large differences in host diet between summer and winter, there are significant differences in microbiota community structures according to Amova (SS=0.3871; MS=0.387; Fs=6.856; P<0.001 ** ). In winter, goitered gazelle must face cold weather as well as shortages in water and forage. To survive in a harsh environment, the relative abundance of Bacteroides, which enhances host metabolism of saccharides, increases significantly. In addition, water reabsorption was also significantly enhanced, which helps the goitered gazelles avoid dehydration in winter.

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Edaphic characterization and plant zonation in the Qaidam Basin, Tibetan Plateau

Cited by 11 publications

References 19 publications

Altitudinal diversity of aquatic plants in the Qinghai‐Tibet Plateau

Altitudinal diversity of aquatic plants in the Qinghai‐Tibet Plateau

Agro-Climato-Edaphic Zonation of Nigeria for a Cassava Cultivar using GIS-Based Analysis of Data from 1961 to 2017

Gut Microbiota enabled Goitered Gazelle (Gazella subgutturosa) to Adapt to Seasonal Changes

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