Chronosequence-based population structure and natural regeneration of Haloxylon ammodendron plantation in the southern edge of the Gurbantunggut Desert, Northwestern China

Qinghong, Luo; Chen, Qimin; Ning, Husen; Zhao, Chengyi

doi:10.1134/s1067413617040130

Cited by 7 publications

(7 citation statements)

References 27 publications

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“…A total of fifteen plants were selected from burrowed and control areas. H. ammodendron in the height range of 30-100 cm was considered as young plant, H. ammodendron of 100-200 cm was considered as middle-aged plant, and those over 200 cm was considered as mature plant (Zhang et al, 2016;Luo et al, 2017). Assimilating branches of H. ammodendron in all four directions of east, south, west and north were collected (annual branches were used to analyze photosynthetic pigments, and 1 a to 3 a branches were used to analyze nutrient contents).…”

Section: Collection and Analysis Of Assimilating Branchesmentioning

confidence: 99%

Effects of rodent-induced disturbance on eco-physiological traits of Haloxylon ammodendron in the Gurbantunggut Desert, Xinjiang, China

et al. 2020

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Disturbance by rodents alters the morphologies and nutrients of plants as well as the physical-chemical properties of the soils. Changes in plants are considered to be mechanisms of defense against the disturbance by rodents. Rodents gnaw on the assimilating branches of Haloxylon ammodendron (CA Mey.) Bunge and burrow under the bushes in the desert ecosystems of Xinjiang, China. However, eco-physiological responses of different age groups of H. ammodendron to the disturbance by rodents are not well understood. In this study, soil physical-chemical properties under the shrubs and the above-ground morphological, physiological and biochemical features of assimilating branches of H. ammodendron of different age groups (i.e., young, 30−100 cm; middle-aged, 100−200 cm; and mature, >200 cm) in burrowed and non-burrowed (control) areas were studied in 2018. We found that disturbance by rodents significantly increased the crown width and total branching rates of young and middle-aged H. ammodendron. Photosynthetic pigment contents of assimilating branches of H. ammodendron were significantly reduced under the disturbance by rodents. In term of plant nutrients, the main differences among different age groups of H. ammodendron under the disturbance by rodents occurred in the total soluble sugar and reducing sugar contents that decreased in young plants, increased in middle-aged plants, and did not affect in mature plants. Crude protein and phosphorus contents significantly increased, while crude fiber and calcium contents significantly decreased in young plants. Crude fat and calcium contents significantly decreased in middle-aged plants. Soil organic matter (SOM), total nitrogen (TN), available nitrogen (AN) and available potassium (AK) contents in the topsoil (0-20 cm), which are conducive to forming ''fertile islands'', also increased under the disturbance by rodents. In particular, soil AN and AK were the major factors affecting the above-ground morphological characteristics of H. ammodendron in burrowed areas. Overall, the response and defense strategies of H. ammodendron to the disturbance by rodents differed among different age groups, and the effect of the disturbance by rodents on H. ammodendron gradually weakened with the increasing plant age.

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Section: Collection and Analysis Of Assimilating Branchesmentioning

confidence: 99%

Effects of rodent-induced disturbance on eco-physiological traits of Haloxylon ammodendron in the Gurbantunggut Desert, Xinjiang, China

et al. 2020

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“…H . ammodendron is highly resistant to harsh environments and is extensively used for restoring degraded drylands (Li et al, 2013 ; Luo et al, 2017 ). The three groups and the comprehensive results show that precipitation has had an attenuating effect on the distribution of the two species.…”

Section: Discussionmentioning

confidence: 99%

“…Before the 1980s, H. ammodendron was widely distributed in northern China under natural conditions, and C. deserticola parasitized the roots of H. ammodendron (Tu et al, 2011). H. ammodendron is highly resistant to harsh environments and is extensively used for restoring degraded drylands (Li et al, 2013;Luo et al, 2017). The three groups and the comprehensive results show that precipitation has had an attenuating effect on the distribution of the two species.…”

Section: Key Environment Variables and Ecological Characteristicsmentioning

confidence: 97%

Predicting the suitable habitats of parasitic desert species based on a niche model with Haloxylon ammodendron and Cistanche deserticola as examples

et al. 2021

Ecology and Evolution

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“…Three sub-quadrats (10 × 10 m) with different growth stages were set in each plot, and the distance between each sub-quadrat exceeded 20 m. Each plot included at least 30 plants. According to the classification of Zhang et al [ 29 ] and Luo et al [ 30 ], H. ammodendron was divided into three growth stages based on plant height: young age (30–100 cm), middle age (100–200 cm), and adult age (>200 cm).…”

Section: Methodsmentioning

confidence: 99%

Effects of Great Gerbil Disturbance on Photosynthetic Characteristics and Nutrient Status of Haloxylon ammodendron

Shi,

Hao,

Wang

et al. 2024

Plants

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Rodents, such as those that feed on plants and nest in plant roots, can significantly affect the growth and development of desert plants. The aim of this study was to investigate the effects of Rhombomys opimus disturbance on the photosynthetic characteristics and nutrient status of Haloxylon ammodendron at different growth stages in the Gurbantunggut Desert. The effects of great gerbil disturbance on the photosynthetic characteristics of H. ammodendron at different growth stages were investigated by measuring the gas exchange parameters, instantaneous water use efficiency, and chlorophyll fluorescence parameters of H. ammodendron at different ages (young, middle, and adult) under the disturbance of great gerbils. The soil nutrients in the assimilated branches and rhizosphere of H. ammodendron at different growth stages were tracked to reveal the relationship between the H. ammodendron nutrient content and gerbil disturbance. The results showed that great gerbil disturbance decreased the organic carbon content in the rhizosphere soil of adult H. ammodendron and increased the total nitrogen content in the rhizosphere soil and the nitrogen and potassium contents in the assimilated branches at each growth stage. The net photosynthetic rate and instantaneous water use efficiency of H. ammodendron decreased at each growth stage, and the maximum photochemical efficiency and non-photochemical quenching parameters of the young H. ammodendron decreased. However, the actual photochemical efficiency and photochemical parameters of the middle H. ammodendron increased. It was concluded that the disturbance of great gerbils decreased the photosynthetic capacity of H. ammodendron and increased the content of total nitrogen in the soil and nitrogen and potassium in the plant. This study revealed that the Gurbantunggut Desert great gerbil and H. ammodendron do not have a simple predation relationship. It laid a foundation for the study of the moderate disturbance threshold and better use of the mutually beneficial relationship between the two.

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Chronosequence-based population structure and natural regeneration of Haloxylon ammodendron plantation in the southern edge of the Gurbantunggut Desert, Northwestern China

Cited by 7 publications

References 27 publications

Effects of rodent-induced disturbance on eco-physiological traits of Haloxylon ammodendron in the Gurbantunggut Desert, Xinjiang, China

Effects of rodent-induced disturbance on eco-physiological traits of Haloxylon ammodendron in the Gurbantunggut Desert, Xinjiang, China

Predicting the suitable habitats of parasitic desert species based on a niche model with Haloxylon ammodendron and Cistanche deserticola as examples

Effects of Great Gerbil Disturbance on Photosynthetic Characteristics and Nutrient Status of Haloxylon ammodendron

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