scholarly journals Nutrient variation induced by rodent disturbance in Haloxylon ammodendron as a target transfer strategy

2021 ◽  
Author(s):  
Wenqin Zhao ◽  
Hanli Dang ◽  
Tao Zhang ◽  
Jianrui Dong ◽  
Hongwei Chen ◽  
...  
Keyword(s):  
Haloxylon Ammodendron

Dynamics of water usage in Haloxylon ammodendron in the southern edge of the Gurbantünggüt Desert

2014 ◽  
Vol 38 (11) ◽  
pp. 1214-1225 ◽  
Author(s):  
DAI Yue ◽  
◽  
ZHENG Xin-Jun ◽  
TANG Li-Song ◽  
and LI Yan
Keyword(s):  
Water Usage ◽  
Haloxylon Ammodendron

State of Saxaul Plantations in Kazakhstan’s Section of the Aral Sea Region

2020 ◽  
Vol 7 (1) ◽  
pp. 128-157
Author(s):  
Zhuldyz Salmukhanbetova ◽  
A.A. Imanalinova ◽  
L.A. Dimeyeva ◽  
N.E. Zverev
Keyword(s):  
Survival Rate ◽  
Sandy Loam ◽  
Aral Sea ◽  
Forest Plantations ◽  
Haloxylon Ammodendron ◽  
Grass Roots ◽  
Grant Support ◽  
Seed Regeneration ◽  
International Fund ◽  
Black Saxaul

The article aims to assess the survival rate of saxaul plantations on the dry seabed of the Aral Sea (DSAS) and these close to the villages along the original seacoast. Protective black saxaul (Haloxylon ammodendron) plantations on the DSAS were established in the course of 2009-2019 with the grant support of the International Fund for Saving the Aral Sea (IFAS), Japan’s environmental funds, UNDP Kazakhstan, as well as under the Grass-Roots Program of the Embassy of Japan in Kazakhstan. During September 1-14, 2020, the target plantation plots at 24 sites adjacent to the villages of Aralkum and Karateren underwent examination, including forest surveying, projected species cover determination, as well as seed regeneration and survival rate assessment. The findings of 2020 revealed the varying condition of target saxaul plantations. Thus, the survival rate of saxaul inside forest plantations ranged between 0.12 and 78.0%. The actual number of saxaul trees varied from 1 (one) to 1,000 per ha on the DSAS and from 888 to 2,633 per ha in Aralkum village. The novelty of the obtained results is due to the fact that they clearly demonstrate that the survival rate and development of forest plantations, as well as saxaul seed self-renewal, above all, depend on the overall ecological conditions at specific sites. Saxaul demonstrated the best survival rate and growth at the sites with sandy loam and saline light loamy soils with sandy cover, and the worst – at the sites with crusty and takyr (dry-type playa) saline soils.

Water source and transmission in Haloxylon ammodendron in the desert margin of the Manas River Basin, China

2021 ◽  
pp. 1-12
Author(s):  
Wanjing Li ◽  
Li Zhao ◽  
Guang Yang ◽  
Ke Yan ◽  
Xinlin He ◽  
...  
Keyword(s):  
Soil Water ◽  
Ecological Restoration ◽  
Moisture Transfer ◽  
Water Source ◽  
Desert Plant ◽  
Contribution Rate ◽  
Haloxylon Ammodendron ◽  
Water Transportation ◽  
Stem Flow ◽  
Average Contribution

Abstract Analysis of water source and moisture transfer characteristics of desert plants is of great significance for ecological restoration in arid areas. In this study, the water source utilized by the desert plant, Haloxylon ammodendron, was analysed using the stable isotope technique, and the water transportation characteristics were obtained based on the proportional heat balance method under different weather conditions. The results showed that (1) before raining, the moisture of H. ammodendron mainly relied on groundwater (the average contribution rate was 34.14%) and on soil water located at a depth of 120–180 cm (the average contribution rate was 29.87%). After the rain, H. ammodendron mainly absorbed soil water from a depth of 60–120 cm (the average contribution rate was 33.19%) and groundwater (the average contribution rate was 30.67%); (2) the stem flow of H. ammodendron showed an obvious diurnal variation, showing a “midday rest” phenomenon. The stem flow showed a peak value, and in sunny days, it was ~2 fold higher than that in cloudy days. (3) The stem flow rate of H. ammodendron varied regularly overtime as follows: August > July > September > June > May, and the meteorological factors affecting its stem flow were solar radiation (0.826) > atmospheric temperature (0.598) > humidity (-0.573). The results provide basic support for the ecological conservation of the desert plant H. ammodendron, while also having important implications for ecological restoration in arid regions.

Characteristic on the Stability of Haloxylon Ammodendron Plantation in the Southern Fringe of Gurbantunggut Desert, Northwest China

2021 ◽  
Author(s):  
Qinghong Luo ◽  
Qimin Chen ◽  
Miao He ◽  
Na Li
Keyword(s):  
Northwest China ◽  
Gurbantunggut Desert ◽  
Haloxylon Ammodendron ◽  
Coordinated Development ◽  
Soil System ◽  
Management Measures ◽  
Gurbantünggüt Desert ◽  
The Stability ◽  
Southern Fringe ◽  
System Coupling

Using chronosequence theory and method, the characteristics of vegetation-soil coupling and structure stability of Haloxylon ammodendron plantations in the southern fringe of Gurbantunggut Desert were analyzed. The results showed, the canopy storey of H. ammodendron plantation experienced three stages, rapid growth (the age of 7 to 20), then slow growth (the age of 20 to 28) and last decline (over the age of 28). The best natural regeneration started from 17-yr-old plantation. Vegetation-soil system coupling degree (C) and coupling coordinative degree (D) of plantations with different age were not one-to-one correspondence. The system of H. ammodendron plantations always stayed in disorder recession, vegetation and soil were prone to loss type during the process of sand-fixation. Five principal components evaluated that the first rank was 42-yr-old plantation. It was inferred that the trend of the vegetation and soil system was from senescence to harmonious development. So the trend of coordinated development between vegetation and soil would be promoted, if the artificial tending and management measures strengthened.

Carbon Exchange Dataset of Haloxylon ammodendron Community: From Leaf to Community

GCdataPR ◽  
2020 ◽  
Author(s):  
Shoujuan LI ◽  
Shoujuan LI ◽  
Shoujuan LI ◽  
Jie MA ◽  
Jie MA ◽  
...  
Keyword(s):  
Carbon Exchange ◽  
Haloxylon Ammodendron
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