scholarly journals Soil nutrients, canopy gaps and topography affect liana distribution in a tropical seasonal rain forest in southwestern China

2020 ◽  
Author(s):  
Qi Liu ◽  
Frank J. Sterck ◽  
José A. Medina‐Vega ◽  
Li‐Qing Sha ◽  
Min Cao ◽  
...  
Keyword(s):  
Soil Nutrients ◽  
Rain Forest ◽  
Canopy Gaps ◽  
Southwestern China ◽  
Tropical Seasonal Rain Forest

scholarly journals Characteristics of thermal effects and seasonal variation on different thermal active surfaces of canopy gaps in tropical seasonal rain forest

2001 ◽  
Vol 09 (4) ◽  
pp. 366-372
Author(s):  
WANG Jin-Xin ◽  
ZHANG Yi-Ping ◽  
DOU Jun-Xia ◽  
MA You-Xin ◽  
LIU Yu-Hong ◽  
...  
Keyword(s):  
Seasonal Variation ◽  
Thermal Effects ◽  
Rain Forest ◽  
Canopy Gaps ◽  
Active Surfaces ◽  
Tropical Seasonal Rain Forest

scholarly journals EVALUASI TERHADAP PERUBAHAN STATUS BEBERAPA HARA TANAH SETELAH 10 TAHUN DI BUKIT GAJABUIH PADANG

Jurnal Solum ◽  
2008 ◽  
Vol 5 (1) ◽  
pp. 23
Author(s):  
Hermansah Hermansah ◽  
Juniarti Juniarti ◽  
Utami Maya Pribadi
Keyword(s):  
Soil Nutrients ◽  
Rain Forest ◽  
Tropical Rain Forest ◽  
Soil Nutrient ◽  
Nutrient Status ◽  
The Other ◽  
Experimental Plot ◽  
Soil Nutrient Status ◽  
P Content ◽  
The Relationship

This experiment is about the evaluation of characteristic alteration of soil nutrients after ten years at tropical rain forest Bukit Gajabuih Gunung Gadut Padang. This experiment was conducted from November 2006 - April 2007.  This experiment is arranged based on anova design with three treatments which was based on three great groups of land ( oxic-dystroudept (eutriccc, aquic), oxic-dystroudept (xanthic), oxic-typic-dystroudept (xanthic)).  The purpose of this experiment was to study the alteration of soil fertility characteristics  (K, Ca, Mg, Na, P and C/N) in ten years period (1995-2005) in tropical rain forest at Bukit Gajabuih Padang, to observe vegetation variety alteration, and the relationship with the land fertility characteristics.  From the experiment was found that nutrient status of the soils altered after ten years (*1995-2005).  Available P content increased about 77%, exchangeable Na and K  increased 86,04% and 53.65%, respectively.  On the other hand, exchangeable Mg and Ca decreased 3,05% and 65,88%, respectively.  Land C/N ratio decreased about 21,39%. The experimental plot had low soil pH.Key Words: tropical rain forest, soil nutrient status

Fog- and Rainwater Chemistry in the Tropical Seasonal Rain Forest of Xishuangbanna, Southwest China

2005 ◽  
Vol 167 (1-4) ◽  
pp. 295-309 ◽  
Author(s):  
Wen Jie Liu ◽  
Yi Ping Zhang ◽  
Hong Mei Li ◽  
Fan Rui Meng ◽  
Yu Hong Liu ◽  
...  
Keyword(s):  
Rain Forest ◽  
Southwest China ◽  
Rainwater Chemistry ◽  
Tropical Seasonal Rain Forest

Butterfly behavioural responses to natural Bornean tropical rain-forest canopy gaps

2011 ◽  
Vol 28 (1) ◽  
pp. 45-54 ◽  
Author(s):  
James S. Pryke ◽  
Sven M. Vrdoljak ◽  
Paul B. C. Grant ◽  
Michael J. Samways
Keyword(s):  
Rain Forest ◽  
Tropical Rain Forest ◽  
Forest Canopy ◽  
Canopy Gaps ◽  
Tree Canopy ◽  
Canopy Openness ◽  
Butterfly Species ◽  
Behavioural Responses ◽  
Light Heterogeneity ◽  
Closed Canopy

Abstract:Natural tree canopy gaps allow sunlight to penetrate to the forest floor, a major environmental component and resource for many tropical rain-forest species. We compare here how butterflies use sunny areas created by the natural gaps in canopies in comparison with adjacent closed-canopy areas. We chose butterflies as our focal organisms as they are taxonomically tractable and mobile, yet habitat sensitive. Previous studies have shown that butterfly diversity in tropical forests responds to varying degrees of canopy openness. Here we assess butterfly behavioural responses to gaps and equivalent sized closed-canopy patches. Butterfly occupancy time and behaviour were simultaneously observed 61 times in gaps and 61 times in equivalent sized closed-canopy patches across four sites in a tropical rain forest in northern Borneo. Out of the 20 most frequently recorded species, 12 were more frequently recorded or spent more time in gaps, four occurred more frequently in closed-canopy areas, and four showed no significant differences. Overall agonistic, basking, patrolling and resting were more common in gaps compared with the closed canopy. Many butterfly species have complex behavioural requirements for both gaps and closed canopies, with some species using these different areas for different behaviours. Each butterfly species had particular habitat requirements, and needed both canopy gaps and closed canopy areas for ecological and behavioural reasons, emphasizing the need for natural light heterogeneity within these systems.

Species associations of congeneric species in a tropical seasonal rain forest of China

2016 ◽  
Vol 32 (3) ◽  
pp. 201-212 ◽  
Author(s):  
Guoyu Lan ◽  
Yunbing Zhang ◽  
Fangliang He ◽  
Yuehua Hu ◽  
Hua Zhu ◽  
...  
Keyword(s):  
Species Interactions ◽  
Rain Forest ◽  
Biotic Interactions ◽  
Second Order ◽  
Small Scale ◽  
Order Effects ◽  
Congeneric Species ◽  
First Order ◽  
Large Trees ◽  
Tropical Seasonal Rain Forest

Abstract:In tropical plant communities with diverse species, many congeners are found to coexist. Do environment or biotic interactions structure the coexistence of congeners in tropical forest communities? In this paper, we aimed to disentangle the effect of environment (first-order effects) and species interactions (second-order effects) on the spatial distributions of tree species. We used a classification scheme and torus-translation to test the first-order interaction of 48 species from 17 genera in a fully mapped 20-ha dipterocarp tropical seasonal rain-forest plot in Xishuangbanna, south-west China. Then we used heterogeneous Poisson null models to reveal significant uni- and bivariate second-order interactions. The results demonstrated that (1) 34 of the 48 studied species showed a significant relation with at least one topographic variable. This confirmed that topographical heterogeneity is important for distribution of these congeners. Spatial segregation (36.6%) and partial overlap (34.8%) were the most common bivariate association types in Xishuangbanna plot, which indicated first-order effects (environment) were strong. (2) For small-scale associations, 51% saplings (1 to ≤ 5 cm) (68.8% for large trees with dbh > 5 cm) of the species showed non-significant associations. For large-scale associations, 61.6% saplings (81.2% for large trees) of the species showed non-significant associations. Lack of significant species interactions provides evidence for the unified neutral theory. In conclusion, both environment and biotic interactions structure congeneric species' coexistence in tropical seasonal rain forest in this region.

FOG CHARACTERISTICS IN A TROPICAL SEASONAL RAIN FOREST IN XISHUANGBANNA, SOUTHWEST CHINA

2004 ◽  
Vol 28 (2) ◽  
pp. 264-270
Author(s):  
LIU Wen-Jie ◽  
ZHANG Yi-Ping ◽  
LI Hong-Mei ◽  
DUAN Wen-Ping
Keyword(s):  
Rain Forest ◽  
Southwest China ◽  
Tropical Seasonal Rain Forest
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