scholarly journals Effects of forest canopy condition on the establishment of Castanopsis fargesii seedlings in a subtropical evergreen broad-leaved forest

2019 ◽  
Vol 43 (1) ◽  
pp. 55-64 ◽  
Author(s):  
WU Xiao-Qi ◽  
◽  
YANG Sheng-He ◽  
HUANG Li ◽  
LI Xiao-Han ◽  
...  
Keyword(s):  
Forest Canopy ◽  
Broad Leaved Forest ◽  
Castanopsis Fargesii ◽  
Leaved Forest

scholarly journals Difference between rainfall and throughfall chemistry for different forest stands in the Qinling Mountains, China

2021 ◽  
Author(s):  
Shengli Zhang ◽  
Jinxin Yu ◽  
Taichen Pan ◽  
Xiaoxiao Gao ◽  
Zhibin Qiu ◽  
...  
Keyword(s):  
Forest Canopy ◽  
Coniferous Forest ◽  
Pinus Tabulaeformis ◽  
Qinling Mountains ◽  
Forest Canopies ◽  
Broad Leaved Forest ◽  
Throughfall Chemistry ◽  
Leaved Forest ◽  
Pb Concentration ◽  
Selection Of

Abstract This study compared the effects of four forest canopies on throughfall chemistry in the Qinling Mountains, China. Rainfall and throughfall samples were collected in stands of Quercus aliena (Qa) var. Acuteserrata, Pinus tabulaeformis (Pt), P. armandii (Pa), and mixed broad-leaved (Mb) trees from 2009 to 2011. The results indicated that the pH of the rainfall, which was mildly acidic, increased as it passed through the forest canopy. The pH increased more within the broad-leaved forest canopy than the coniferous forest. Concentrations of decreased as rainfall passed through the Qa canopy but increased after passing through the other species. The concentrations of and Zn, Cd and Pb decreased as rainfall passed through the four canopies. The coniferous forest canopy was more effective than the broad-leaved forest in reducing in rainwater. The decreases in Cd concentrations were similar among the four canopies. The Pb concentration decreased the most among the heavy metals, and the order of the decrease was Qa > Pt > Pa > Mb. The results may provide a basis for the selection of tree species for afforestation in water sources in the Qinling Mountains and similar areas.

Classification of vegetation in Cucphuong National Park with the aim of large-scale mapping, Vietnam

1996 ◽  
pp. 64-67 ◽  
Author(s):  
Nguen Nghia Thin ◽  
Nguen Ba Thu ◽  
Tran Van Thuy
Keyword(s):  
National Park ◽  
Large Scale ◽  
Satellite Images ◽  
Field Work ◽  
Aerial Photographs ◽  
Vegetation Map ◽  
Dense Forest ◽  
Broad Leaved Forest ◽  
Leaved Forest

The tropical seasonal rainy evergreen broad-leaved forest vegetation of the Cucphoung National Park has been classified and the distribution of plant communities has been shown on the map using the relations of vegetation to geology, geomorphology and pedology. The method of vegetation mapping includes: 1) the identifying of vegetation types in the remote-sensed materials (aerial photographs and satellite images); 2) field work to compile the interpretation keys and to characterize all the communities of a study area; 3) compilation of the final vegetation map using the combined information. In the classification presented a number of different level vegetation units have been identified: formation classes (3), formation sub-classes (3), formation groups (3), formations (4), subformations (10) and communities (19). Communities have been taken as mapping units. So in the vegetation map of the National Park 19 vegetation categories has been shown altogether, among them 13 are natural primary communities, and 6 are the secondary, anthropogenic ones. The secondary succession goes through 3 main stages: grassland herbaceous xerophytic vegetation, xerophytic scrub, dense forest.

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