scholarly journals Phylogeographic study of Chinese seabuckthorn ( Hippophae rhamnoides subsp.  sinensis Rousi) reveals two distinct haplotype groups and multiple microrefugia on the Qinghai‐Tibet Plateau

2014 ◽  
Vol 4 (22) ◽  
pp. 4370-4379
Author(s):  
Hongfang Wang ◽  
Han Liu ◽  
Mingbo Yang ◽  
Lei Bao ◽  
Jianping Ge
Land ◽  
2019 ◽  
Vol 8 (12) ◽  
pp. 183
Author(s):  
Lihui Tian ◽  
Wangyang Wu ◽  
Xin Zhou ◽  
Dengshan Zhang ◽  
Yang Yu ◽  
...  

The planting of sand-binding vegetation in the Qinghai Lake watershed at the northeastern edge of the Qinghai–Tibet Plateau began in 1980. For this paper, we took the desert on the eastern shore of Qinghai Lake as the study area. We analyzed a variety of aged Hippophae rhamnoides communities and aeolian activities, and we discuss the relationship between them. The main conclusions are as follows: (1) With an increasing number of binding years, the species composition became more abundant, natural vegetation began to recover, and biodiversity increased year by year. At the same time, plant height, canopy width, and community coverage increased, but H. rhamnoides coverage was reduced to 36.70% as coverage of Artemisia desertorum increased to 25.67% after 10 years of fixing. The biomass of H. rhamnoides increased significantly, especially the underground biomass. For example, the biomass of area 15a was about 10 to 30 times that of area 1a. (2) Plants are a useful obstacle to aeolian activity. The presence of plants reduced the wind flow in the upper parts of the plants, but it did not have obvious regular characteristics. The longer the fixation term, the lower the surface sediment transport. It is significant that the sediment transport amount in winter was four times that in the summer. After 15 years of binding, H. rhamnoides grows well, and the community is still stable in the study area.


Author(s):  
О. М. Бедарева ◽  
В. Г. Сильвандер ◽  
Любовь Семёновна Мурачёва ◽  
А. В. Матюха

В статье рассмотрены наиболее крупные площади популяций облепихи (Hippophae rhamnoides L.) на территории районов Калининградской области. Отмечена уникальность облепиховых фитоценозов для региона. Рекомендованы природоохранные мероприятия, направленные на сохранение вида.


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