Controls on aeolian sediment dynamics by natural riparian vegetation in the Eastern Tarim Basin, NW China

Betz, Florian; Halik, Ümüt; Kuba, Martin; Aishan, Tayierjiang; Cyffka, Bernd

doi:10.1016/j.aeolia.2015.04.005

Cited by 26 publications

(16 citation statements)

References 44 publications

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“…More seriously, more than 320 km of river channel along the lower reaches of the Tarim River were completely desiccated since the construction of Daxihaizi reservoir in 1973. Consequently, the groundwater level dropped to 10-12 m below the surface and became salinized [20][21][22][23][24]. As a result of ecosystem deteriorations, substantial amounts of carbon stored in this riparian vegetation have been lost due to the reduction in the amount of live biomass.…”

Section: Introductionmentioning

confidence: 99%

Biomass Carbon Sequestration Potential by Riparian Forest in the Tarim River Watershed, Northwest China: Implication for the Mitigation of Climate Change Impact

Aishan

Betz

Halik

et al. 2018

Forests

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Carbon management in forests has become the most important agenda of the first half of the 21st century in China in the context of the mitigation of climate change impact. As the main producer of the inland river basin ecosystem in arid region of Northwest China, the desert riparian forest maintains the regional environment and also holds a great significance in regulating the regional/global carbon cycle. In this study, we estimated the total biomass, carbon storage, as well as monetary ecosystem service values of desert riparian Populus euphratica Oliv. in the lower reaches of the Tarim River based on terrestrial forest inventory data within an area of 100 ha (100 plots with sizes of 100 m × 100 m) and digitized tree data within 1000 ha (with 10 m × 10 m grid) using a statistical model of biomass estimation against tree height (TH) and diameter at breast height (DBH) data. Our results show that total estimated biomass and carbon storage of P. euphratica within the investigated area ranged from 3.00 to 4317.00 kg/ha and from 1.82 to 2158.73 kg/ha, respectively. There was a significant negative relationship (p < 0.001) between biomass productivity of these forests and distance to the river and groundwater level. Large proportions of biomass (64% of total biomass) are estimated within 200 m distance to the river where groundwater is relatively favorable for vegetation growth and biomass production. However, our data demonstrated that total biomass showed a sharp decreasing trend with increasing distance to the river; above 800 m distance, less biomass and carbon storage were estimated. The total monetary value of the ecosystem service "carbon storage" provided by P. euphratica was estimated to be $6.8 × 10 4 USD within the investigated area, while the average monetary value was approximately $70 USD per ha, suggesting that the riparian forest ecosystem in the Tarim River Basin should be considered a relevant regional carbon sink. The findings of this study help to establish a better understanding of the spatial distribution pattern of P. euphratica forest under water scarcity and can also provide an alternative approach to local decision-makers for efficient and precise assessment of forest carbon resources for emission reduction programs.

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Section: Introductionmentioning

confidence: 99%

Biomass Carbon Sequestration Potential by Riparian Forest in the Tarim River Watershed, Northwest China: Implication for the Mitigation of Climate Change Impact

Aishan

Betz

Halik

et al. 2018

Forests

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“…is a rare, ancient, and endangered tree species which forms the floodplain forest ecosystem in inland river basins in central Asian arid regions [9,10]. Given its high capacity against environmental stressors, e.g., saline, high temperature, drought and sand storms, it plays an irreplaceable function in these areas [11][12][13][14]. However, due to the irrational water allocation along the upper and middle reaches of the Tarim River, the lower reaches (ca.…”

Section: Introductionmentioning

confidence: 99%

Relating Water Use to Tree Vitality of Populus euphratica Oliv. in the Lower Tarim River, NW China

Keyimu

Halik

Rouzi

2017

Water

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Abstract:This study aimed to compare the hydraulic characteristics of different vitalities of Populus euphratica to reveal the differences in their water use strategies and water consumption to provide useful data to scale water use of riparian poplar forests in the lower reaches of the Tarim River, Northwestern China. Our results showed that the sapwood area of P. euphratica could be estimated based on its correlation with tree biometric parameters. The sapwood area of vital poplars tended to be larger than the senesced poplar despite both having the same diameter at breast height. This indicates that poplar vitality should be taken into account when estimating its sapwood area. Therefore, we established two different sapwood area estimation models for vital and senesced poplar (sapwood area = 1.452 × DBH 1.553 , R 2 = 0.891; sapwood area = 0.915 × DBH 1.618 , R 2 = 0.718; DBH: diameter at breast height). The sap flow process of vital and senesced poplar had certain differences and similarities; the average diurnal sap flow velocity and water consumption of vital poplar were 15.85 cm/h and 45.95 L, respectively; for the senesced poplar, it was 9.64 cm/h and 18.17 L, respectively, which were smaller than that of vital poplars. The influence of environmental factors on the sap flow velocity of two different P. euphratica was similar; the sap flow of both vital and senesced poplar had positive correlation with air temperature (R 2 = 0.800 and 0.851), solar radiation (R 2 = 0.732 and 0.778), vapor pressure deficit (R 2 = 0.508 and 0.643) and groundwater depth (R 2 = 0.301 and 0.171), while negative correlation with air humidity (R 2 = −0.313 and −0.478).

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“…One frequent argument for these restorative measures is the protective function against the soil degradation served by this natural "Green Corridor". Given this, it is logical that the ability to control aeolian sediment is a powerful indicator for the effectiveness of a given restoration project [15]. Therefore, prevention of desertification, and wind-breaking and sand-fixation have become urgent problems faced by the local governments along the lower reaches of the Tarim River.…”

Section: Introductionmentioning

confidence: 99%

Ecological effect of the riparian ecosystem in the lower reaches of the Tarim River in northwest China

et al. 2019

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The riparian vegetation in the lower reaches of the Tarim River is an irreplaceable natural resource for its ecosystem, and also a guarantee for the transportation safety in this area. Here, we analyzed different plant influences on soil erosion and evaluate the main ecosystem service functions served by the riparian vegetation to study area. Results showed that the total amount of sand-fixation in the study area was 4.14×1013 t and that Tamarix chinensis had a greater influence on wind speed and sediment transport than Populus euphratica, and the Tamarix chinensis can be used as suitable vegetation for wind erosion measures and provide scientific basis for the optimization of vegetation matching and reasonable allocation scheme for ecological construction in arid areas. The total ecosystem service value was calculated to be $11.03×1011. Of the main ecosystem service functions, riparian vegetation primarily served as sand fixation. Results show that, this research was identical, and the construction of shelterbelt plays an important role in the promotion of wind and sand control measures. Finally, our findings highlights the need for further research on how vegetation function as windbreak and sand fixation.

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Controls on aeolian sediment dynamics by natural riparian vegetation in the Eastern Tarim Basin, NW China

Cited by 26 publications

References 44 publications

Biomass Carbon Sequestration Potential by Riparian Forest in the Tarim River Watershed, Northwest China: Implication for the Mitigation of Climate Change Impact

Biomass Carbon Sequestration Potential by Riparian Forest in the Tarim River Watershed, Northwest China: Implication for the Mitigation of Climate Change Impact

Relating Water Use to Tree Vitality of Populus euphratica Oliv. in the Lower Tarim River, NW China

Ecological effect of the riparian ecosystem in the lower reaches of the Tarim River in northwest China

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