The role and significance of the Gobi Desert pavement in controlling sand movement on the cliff top near the Dunhuang Magao Grottoes

2001 ◽  
Vol 48 (3) ◽  
pp. 357-371 ◽  
Author(s):  
Qu Jianjun ◽  
Huang Ning ◽  
Dong Guangrong ◽  
Zhang Weimin
2009 ◽  
Vol 364 (1-2) ◽  
pp. 128-141 ◽  
Author(s):  
Jinzhu Ma ◽  
Zhenyu Ding ◽  
W. Mike Edmunds ◽  
John B. Gates ◽  
Tianming Huang

Asian Affairs ◽  
2009 ◽  
Vol 40 (3) ◽  
pp. 408-417 ◽  
Author(s):  
John Hare
Keyword(s):  

1928 ◽  
Vol 71 (3) ◽  
pp. 291
Author(s):  
F. E. Y. ◽  
Mildred Cable ◽  
Francesca French
Keyword(s):  

2010 ◽  
Vol 5 (2-3) ◽  
pp. 107-113 ◽  
Author(s):  
D. Hülle ◽  
A. Hilgers ◽  
U. Radtke ◽  
C. Stolz ◽  
N. Hempelmann ◽  
...  
Keyword(s):  

1991 ◽  
Vol 69 (7) ◽  
pp. 1593-1599 ◽  
Author(s):  
César S. B. Costa ◽  
Ulrich Seeliger ◽  
César V. Cordazzo

We studied the effect of nutrient status and sand movement on the population biology of Panicum racemosum Spreng. over a 5-year period (1982–1986) on mobile, semifixed and fixed coastal foredune habitats in southern Brazil. The soils were deficient in nitrate, phosphate, and potassium (<0.5, 0.2–1.2, and 3–5 mg/kg, respectively) in all habitats, and a gradient of decreasing availability existed from the mobile to the fixed dunes. Half-lives of leaves were shorter in the fixed dune as compared with the mobile dune. Similarly, half-lives of leaves were shorter in summer than in winter. Experiments using cuttings of P. racemosum tillers showed that as P. racemosum plants grew, so did the deposition of sand on mobile foredunes. The mechanical deposition of sand itself did not stimulate P. racemosum growth. The deposition of saline sand provided a substrate that supported vertical growth of P. racemosum rhizomes and tillers and was a source of adsorbed nutrients. Also, active sand deposition limited the invasion of frontal dunes by other species. Panicum racemosum populations changed from "invader" to "mature" to "regressive" age states over a 5-year period, apparently in response to the spatial patterns of sand deposition and salt spray input. Key words: Panicum, leaf demography, growth vigour, sand dunes, temporal changes.


Parnassus ◽  
1936 ◽  
Vol 8 (4) ◽  
pp. 38
Author(s):  
A. Philip McMahon ◽  
Sven Hedin
Keyword(s):  

Nature ◽  
1926 ◽  
Vol 118 (2962) ◽  
pp. 198-199 ◽  
Author(s):  
HENRY FAIRFIELD OSBORN
Keyword(s):  

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