scholarly journals Regeneration Process of a Climax Species Calophyllum cf. soulattri in Tropical Rain Forest of West Sumatra.

Tropics ◽  
1992 ◽  
Vol 2 (1) ◽  
pp. 1-12 ◽  
Author(s):  
Erizal MUKHTAR ◽  
Eizi SUZUKI ◽  
Takashi KOHYAMA ◽  
Marlis RAHMAN
Keyword(s):  
Rain Forest ◽  
Tropical Rain Forest ◽  
Regeneration Process ◽  
Climax Species ◽  
West Sumatra

scholarly journals Spatial Distribution Pattern of Trees in Relation to Soil Edaphic Status in Tropical Rain Forest in West Sumatra, Indonesia II. Distribution of Non-Accumulating Trees.

Tropics ◽  
1998 ◽  
Vol 8 (1/2) ◽  
pp. 17-30 ◽  
Author(s):  
Tsugiyuki MASUNAGA ◽  
Daisuke KUBOTA ◽  
Usher WILLIAM ◽  
Mitsuru HOTTA ◽  
Yoshiaki SHINMURA ◽  
...  
Keyword(s):  
Spatial Distribution ◽  
Distribution Pattern ◽  
Rain Forest ◽  
Tropical Rain Forest ◽  
Spatial Distribution Pattern ◽  
West Sumatra

scholarly journals PENCUCIAN BAHAN ORGANIK TANAH PADA TIGA PENGGUNAAN LAHAN DI DAERAH HUTAN HUJAN TROPIS SUPER BASAH PINANG-PINANG GUNUNG GADUT PADANG

Jurnal Solum ◽  
2011 ◽  
Vol 8 (1) ◽  
pp. 34
Author(s):  
Yulnafatmawita Yulnafatmawita ◽  
Adrinal Adrinal ◽  
Arief Fauzan Hakim
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Rain Forest ◽  
Tropical Rain Forest ◽  
Soil Surface ◽  
Soil Samples ◽  
Annual Rainfall ◽  
Undisturbed Soil ◽  
Physical Laboratory ◽  
West Sumatra

Study about soil organic matter (SOM) leaching in soil profiles of tropical rain forest was conducted in Bukit Pinang-Pinang, the upper footslope of Mt. Gadut in West Sumatra, and in Soil Physical laboratory Andalas University Padang.  Bukit Pinang-Pinang is located on 480-640 m asl and geographically is between 100°29’40” and 100°30’20 E”  as well as between 0°54’55” and 0°55’45”S.  This rain forest area is known as a super wet area because it receives high annual rainfall (>3500 mm).  The objective of this research was to measure the amount of SOM leached from top soil into the deeper soil.  Undisturbed soil samples were taken from three different land uses, forest, bush, and mixed garden, on the top, middle, and foot slopes.  Undisturbed soil samples were leached with distilled water as the amount of rainfall accepted in natural condition. The results showed that, land use change from forest into ecosystems of mixed garden (for over 50 years with 100% soil surface coverage and without any cultivation) and bush land (for over 20 years left) did not cause the SOM content in the profiles decreased. Amount of SOM leached from the top 0-10 cm was found greater from mixed garden, then followed by forest on the upper slope, forest on the middle slope, and bush area.Keywords: SOM leaching, land use change, tropical rain forest, bush, mixed garden

Soil environment and tree species diversity in tropical rain forest, West Sumatra, Indonesia

1998 ◽  
pp. 159-167 ◽  
Author(s):  
Daisuke Kubota ◽  
Tsugiyuki Masunaga ◽  
Hermansah ◽  
Azwar Rasyidin ◽  
Mitsuru Hotta ◽  
...  
Keyword(s):  
Species Diversity ◽  
Tree Species ◽  
Rain Forest ◽  
Tropical Rain Forest ◽  
Tree Species Diversity ◽  
Soil Environment ◽  
West Sumatra

scholarly journals Characteristics and Stocks of Soil Nutrient under Various Land Use Types in a Super Wet Tropical Rain Forest Padang, West Sumatra

2018 ◽  
Vol 15 (1) ◽  
pp. 55
Author(s):  
Hermansah Hermansah ◽  
Nofrita Sendi ◽  
Yulnafatmawita Yulnafatmawita ◽  
Tsugiyuki Matsunaga ◽  
Toshiyuki Wakatsuki ◽  
...  
Keyword(s):  
Land Use ◽  
Rain Forest ◽  
Tropical Rain Forest ◽  
Soil Depth ◽  
Soil Nutrient ◽  
Nutrient Status ◽  
Land Use Type ◽  
Soil Nutrient Status ◽  
Land Use Types ◽  
West Sumatra

In order to clarify the characteristics and stocks of soil nutrient under various land use types in a super wet tropical rain forest in Padang, West Sumatera. We investigated the nutrient characteristics of the several samples of soils under different land use such as cacao plantation (CP), cinnamon plantation (CMP), mixed garden (MG), and primary forest (PF) in Gadut Mountain, Padang, West Sumatra. The soil nutrient characteristics varied among the different land use types. The range of nutrient characteristics under four land use type were 4.60 – 7.01% and 0.4 – 0.60 % for total carbon and total nitrogen and were 9.80 – 24.59, 0.68 – 2.07 and 0.30 – 0.8 mol (+) kg-1 for Ca, Mg and K, respectively. The highest content of soil nutrient status was found under MG, while the lowest soil nutrient status found at PF. This result indicated that the MG with various vegetation types might contribute in enriching the organic matter in soil. The soil nutrient content such as TN, exchangeable Ca, Mg and K tended to decrease with soil depth of each land use type. However, the sodium (Na) content in soil tended to increase within the soil depth. These were presumably due to evaporation of Na at surface soil within the study area was low. These study results showed that spatially the nutrient properties of soil were closely related to the land use type and management practices. It was suggested that the nutrient characteristics of soils under various land use types in a super wet tropical rain forest region, in Gadut Mountain, Padang West Sumatra were significantly affected by the land use types and land coverage.

Distribution characteristics of mineral elements in trees of tropical rain forest, West Sumatra, Indonesia

1998 ◽  
pp. 168-174 ◽  
Author(s):  
Tsugiyuki Masunaga ◽  
Daisuke Kubota ◽  
Mitsuru Hotta ◽  
Yoshiaki Shinmura ◽  
Toshiyuki Wakatsuki
Keyword(s):  
Rain Forest ◽  
Tropical Rain Forest ◽  
Mineral Elements ◽  
Distribution Characteristics ◽  
West Sumatra
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