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Aihemaitijiang Rouzi
Key Laboratory of Oasis Ecology, College of Resources & Environmental Sciences, Xinjiang University, Sheng Li Road 666, Urumqi 830046, Xinjiang, China

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Journal article
Published: 10 April 2018 in 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 × 104 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.

ACS Style

Tayierjiang Aishan; Florian Betz; Umut Halik; Bernd Cyffka; Aihemaitijiang Rouzi. Biomass Carbon Sequestration Potential by Riparian Forest in the Tarim River Watershed, Northwest China: Implication for the Mitigation of Climate Change Impact. Forests 2018, 9, 196 .

AMA Style

Tayierjiang Aishan, Florian Betz, Umut Halik, Bernd Cyffka, Aihemaitijiang Rouzi. Biomass Carbon Sequestration Potential by Riparian Forest in the Tarim River Watershed, Northwest China: Implication for the Mitigation of Climate Change Impact. Forests. 2018; 9 (4):196.

Chicago/Turabian Style

Tayierjiang Aishan; Florian Betz; Umut Halik; Bernd Cyffka; Aihemaitijiang Rouzi. 2018. "Biomass Carbon Sequestration Potential by Riparian Forest in the Tarim River Watershed, Northwest China: Implication for the Mitigation of Climate Change Impact." Forests 9, no. 4: 196.

Journal article
Published: 15 January 2018 in Sustainability
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Increasing anthropogenic activities have significantly altered ecosystems in arid oasis regions. Estimating the impact on a wide range of ecosystem services is important for decision making and the sustainable development of these regions. This study analyzed time-series Landsat data to determine the influences of oasis land-use changes on the ecosystem services in the Kashgar region in Northwest China. The following results were found. The total value of the ecosystem services in the Kashgar region were approximately $10,845.3, $11,218.6, $10,291.7, and $10,127.3 million in 1986, 1996, 2005, and 2015, respectively. The water supply, waste treatment, biodiversity protection, and recreation and cultural services were the four ecosystem services with the highest service value, contributing 77.05% of the total ecosystem services. The combined contribution rate of food production and raw material value was only about 4.02%, relatively small. The sensitivity analysis indicated that the estimated total ecosystem service value (ESV) for this study area was relatively inelastic with respect to the value coefficients. The findings of this study will be crucial for maintaining the stability and sustainable development of the oasis region, where socio-economic development and the integrity of the natural ecosystem complement each other. Furthermore, the results provide a scientific basis for decision makers in land use management, and provide a reference for researchers in the Northwest China.

ACS Style

Aynur Mamat; Ümüt Halik; Aihemaitijiang Rouzi. Variations of Ecosystem Service Value in Response to Land-Use Change in the Kashgar Region, Northwest China. Sustainability 2018, 10, 200 .

AMA Style

Aynur Mamat, Ümüt Halik, Aihemaitijiang Rouzi. Variations of Ecosystem Service Value in Response to Land-Use Change in the Kashgar Region, Northwest China. Sustainability. 2018; 10 (1):200.

Chicago/Turabian Style

Aynur Mamat; Ümüt Halik; Aihemaitijiang Rouzi. 2018. "Variations of Ecosystem Service Value in Response to Land-Use Change in the Kashgar Region, Northwest China." Sustainability 10, no. 1: 200.

Journal article
Published: 24 December 2017 in Sustainability
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This study explores a paradigm of sustainable land use in the oases along the Tarim River of northwest China, where a fragile, semi-arid riparian ecosystem is being damaged by excessive land and water use for agriculture, especially for the growing of cotton. The reliance of agriculture on water-demanding cash crops in this region poses a grave threat to survival of the natural Tugai vegetation in the area and to the long-term sustainability of the region. We explored the hypothesis that the species Apocynum pictum (A. pictum), known as Lop-Kendir by locals, and the Chinese red date (Zyzyphus jujube) may act as sustainable crop substitutes for the region, thereby replacing the widely distributed cash crop of cotton that has high water demands. Therefore, we investigated current utilization and cost-revenue structure of these two alternative plants and compared the results to cotton. Three natural resource management types of A. pictum were both identified in the wild and cultivation, with cost-revenue analysis carried out for each. The results show that all three types of institutional arrangements of natural resources, which are namely open access, ranching and farming, were present in our study and at various levels for A. pictum. A. pictum farming costs 16,250.25 yuan/ha, generates 49,014.45 yuan/ha of revenue from raw materials and brings a profit of 32,764.2 yuan/ha, which is the highest of all three cash crops compared. The Chinese government encourages Chinese red date plantations with a “Grain for green” campaign in the Tarim Basin with this plant being more profitable than cotton, which could serve to diversify the region’s agriculture. We conclude that A. pictum offers opportunities for the restoration of vegetation in riparian ecosystems on salinized sites under the arid conditions of the Tarim Basin. Furthermore, it can serve as a viable land-use alternative to cotton for cash crop agriculture, as it may generate a certain income in the form of tea and fibers as well as fodder for livestock.

ACS Style

Aihemaitijiang Rouzi; Ümüt Halik; Niels Thevs; Martin Welp; Tayierjiang Aishan. Water Efficient Alternative Crops for Sustainable Agriculture along the Tarim Basin: A Comparison of the Economic Potentials of Apocynum pictum, Chinese Red Date and Cotton in Xinjiang, China. Sustainability 2017, 10, 35 .

AMA Style

Aihemaitijiang Rouzi, Ümüt Halik, Niels Thevs, Martin Welp, Tayierjiang Aishan. Water Efficient Alternative Crops for Sustainable Agriculture along the Tarim Basin: A Comparison of the Economic Potentials of Apocynum pictum, Chinese Red Date and Cotton in Xinjiang, China. Sustainability. 2017; 10 (2):35.

Chicago/Turabian Style

Aihemaitijiang Rouzi; Ümüt Halik; Niels Thevs; Martin Welp; Tayierjiang Aishan. 2017. "Water Efficient Alternative Crops for Sustainable Agriculture along the Tarim Basin: A Comparison of the Economic Potentials of Apocynum pictum, Chinese Red Date and Cotton in Xinjiang, China." Sustainability 10, no. 2: 35.

Journal article
Published: 19 August 2017 in Water
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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 × DBH1.553, R2 = 0.891; sapwood area = 0.915 × DBH1.618, R2 = 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 (R2 = 0.800 and 0.851), solar radiation (R2 = 0.732 and 0.778), vapor pressure deficit (R2 = 0.508 and 0.643) and groundwater depth (R2 = 0.301 and 0.171), while negative correlation with air humidity (R2 = −0.313 and −0.478).

ACS Style

Maierdang Keyimu; Ümüt Halik; Aihemaitijiang Rouzi. Relating Water Use to Tree Vitality of Populus euphratica Oliv. in the Lower Tarim River, NW China. Water 2017, 9, 622 .

AMA Style

Maierdang Keyimu, Ümüt Halik, Aihemaitijiang Rouzi. Relating Water Use to Tree Vitality of Populus euphratica Oliv. in the Lower Tarim River, NW China. Water. 2017; 9 (8):622.

Chicago/Turabian Style

Maierdang Keyimu; Ümüt Halik; Aihemaitijiang Rouzi. 2017. "Relating Water Use to Tree Vitality of Populus euphratica Oliv. in the Lower Tarim River, NW China." Water 9, no. 8: 622.