Litter production, decomposition and nutrient return of uplifted coral reef tropical forest

2006 ◽  
Vol 235 (1-3) ◽  
pp. 174-185 ◽  
Author(s):  
Jiung-Hao Liao ◽  
Hsiang-Hua Wang ◽  
Chen-Chi Tsai ◽  
Zeng-Yei Hseu
Keyword(s):  
Coral Reef ◽  
Tropical Forest ◽  
Litter Production ◽  
Nutrient Return

scholarly journals Integrating forest-pasture: Spatial analysis and delineation of zones of litter production and nutrient return

2015 ◽  
Vol 36 (6Supl2) ◽  
pp. 4377
Author(s):  
Sabino Pereira da Silva Neto ◽  
Antonio Clementino dos Santos ◽  
Raimundo Laerton de Lima Leite ◽  
José Expedito Cavalcante da Silva ◽  
Durval Nolasco Neves Neto ◽  
...  
Keyword(s):  
Spatial Analysis ◽  
Treatment Plant ◽  
Principal Component ◽  
Soil Surface ◽  
Plant Litter ◽  
Litter Production ◽  
Nutrient Accumulation ◽  
Nutrient Return ◽  
Forest Strata ◽  
Equidistant Points

This study aimed to quantify, describe, and identify plant litter production and nutrient accumulation zones in different forest-pasture integration (FPI) systems and forest strata of the Cerrado-Amazon transition on typical orthic Quartzarenic Neosol using spatial analysis, principal component analysis, and non-hierarchical fuzzy k-mean clustering logic techniques. The evaluations were performed at two FPI systems comprising a combination of Brachiaria brizantha cv. Marandu and thinned native vegetation with 50 and 75% (FPI-I and FPI-II, respectively) shade in an original thinned forest (NFI) and in an original intact forest (NF-II) with 80 and 95% shade, respectively. An area of 4,000 m² (40 x 100 m) that contained 32 sampling points arranged in a 4 x 25 m grid was demarcated for each treatment. Plant litter was collected using 32 collectors installed at equidistant points. Twelve nylon bags were placed on the soil surface at each point to evaluate the plant litter decomposition, totaling 384 bags per treatment. It was possible to quantify, describe, and define plant litter production and nutrient accumulation zones in different FPI systems and forest strata of the Cerrado-Amazon transition on orthic Quartzarenic Neosol using geostatistical analysis, principal components, and non-hierarchical fuzzy k-mean clustering logic procedures.

scholarly journals Broussonetia papyriferacontrols nutrient return to soil to facilitate its invasion in a tropical forest of Ghana

2017 ◽  
Vol 11 (6) ◽  
pp. 909-918 ◽  
Author(s):  
Alexander Kofi Anning ◽  
Bridget Gyamfi ◽  
Angelina Tima Effah
Keyword(s):  
Tropical Forest ◽  
Nutrient Return

Comparative study on litter production and nutrient return to soil in Tarai and Hill Sal (Shorea robusta Gaertn.) forests of eastern Nepal

2018 ◽  
Vol 28 (1) ◽  
pp. 11-19 ◽  
Author(s):  
K. P. Bhattarai ◽  
T. N. Mandal
Keyword(s):  
Comparative Study ◽  
Tree Species ◽  
Winter Season ◽  
Forest Litter ◽  
Tropical Region ◽  
Litter Production ◽  
Species Variation ◽  
Litter Fall ◽  
Nutrient Return ◽  
Sal Forest

Litter production and nutrient return to soil through litter fall is important pathway for the regulation of nutrient cycling and primary production of the forest. Litter fall dynamics is generally influenced by phenology of tree species, seasons and altitude of the forest stand. As most of the information on litter production are from temperate and dry tropical region. A comparative study on litter production and nutrient return were conducted in Terai Sal forest (TSF) and Hill Sal forest (HSF) located in moist tropical region of eastern Nepal. Litter samples were collected from the litter traps (1m × 1m size) placed randomly in the forest. Collection was done at two months interval for one year. Annual litterfall in TSF (8.82 Mg ha-1y-1) was significantly (p < 0.001) higher than in HSF (7.18 Mg ha-1y-1).There was distinct seasonality in litter production. In TSF and HSF, litterfall was maximum in the summer (6.57 Mg ha-1 and 5.05 Mg ha-1, respectively) and minimum in winter season (0.86 Mg ha-1 and 0.72 Mg ha-1, respectively). Amount of nutrient return to forest soil through litter fall (kg ha-1 y-1) was higher in TSF (72.44 N, 6.80 P and 33.23 K) than HSF (54.31 N, 4.84 P and 22.23 K). The difference in litter production between these two forests was influenced by the phenology of dominant tree species, variation in altitude and seasons. Nutrient return through litter fall is a great input of nutrients in soil which is required for production process. Thus, litter constitutes a significant role in forest management.Banko JanakariA Journal of Forestry Information for NepalVol. 28, No. 1, 2018, page: 11-19

Early responses of elevated nutrient input on above-ground net primary production of a lower-montane tropical forest in Uganda

2020 ◽  
Author(s):  
Raphael Manu ◽  
Marife D. Corre ◽  
Edzo Veldkamp ◽  
Oliver van Straaten
Keyword(s):  
Primary Production ◽  
Tropical Forest ◽  
Tropical Forests ◽  
Net Primary Production ◽  
Forest Growth ◽  
Nutrient Addition ◽  
Litter Production ◽  
N Addition ◽  
Litter Fall ◽  
Montane Tropical Forest

&lt;p&gt;Nutrient availability in tropical forest ecosystems plays a critical role in sustaining forest growth and productivity. Observational evidence for nutrient limitations on net primary productivity (NPP) in the tropics is rare yet crucial for predicting the impacts of human-induced changes on tropical forests, particularly for underrepresented tropical regions in Africa. In an ecosystem-scale nutrient manipulation experiment, we assessed the response of different components of above-ground net primary production (ANPP) to nutrient addition of nitrogen (N), phosphorus (P), potassium (K) and all possible combinations (NP, NK, PK, and NPK) at rates of 125 kg N ha&lt;sup&gt;-1&lt;/sup&gt;yr&lt;sup&gt;-1&lt;/sup&gt;, 50 kg P ha&lt;sup&gt;-1&lt;/sup&gt; yr&lt;sup&gt;-1&lt;/sup&gt; and 50 kg K ha&lt;sup&gt;-1&lt;/sup&gt;yr&lt;sup&gt;-1&lt;/sup&gt;.&lt;/p&gt;&lt;p&gt;We established 32 (8 treatments &amp;#215; 4 replicates) experimental plots of 40 &amp;#215; 40 m&lt;sup&gt;2&lt;/sup&gt; each and measured stem growth of over 15,000 trees with diameter at breast height (dbh) &amp;#8805; 1 cm as well as litter production and above-ground woody biomass production (AWBP), of a lower-montane tropical forest (1100 m a.s.l.) in northwestern Uganda.&lt;/p&gt;&lt;p&gt;After 18 months of nutrient addition, we found that different aspects of ANPP, including litter production and AWBP are controlled by multiple soil nutrients. Specifically, we measured higher total fine-litter production in the N (13.6 &amp;#177; 1.4 Mg ha&lt;sup&gt;-1 &lt;/sup&gt;yr&lt;sup&gt;-1&lt;/sup&gt;) and K (13.3 &amp;#177; 1.8 Mg ha&lt;sup&gt;-1 &lt;/sup&gt;yr&lt;sup&gt;-1&lt;/sup&gt;) addition plots than the control (11.1 &amp;#177; 0.6 Mg ha&lt;sup&gt;-1 &lt;/sup&gt;yr&lt;sup&gt;-1&lt;/sup&gt;) plots. Both reproductive litter (flowers and fruits; 10% of total fine-litter fall) and leaf litter (62% of total fine-litter fall) significantly increased with K addition. In general, fine-litter production in our plots is higher than what has been reported so far for lower-montane tropical forests. Increased AWBP is associated with N addition plots. The response of trees to nutrient addition however, varied with tree sizes. Trees with dbh between 10 &amp;#8211; 30 cm increased significantly in AWBP under PK addition. There was no effect of nutrient addition associated with either smaller (1 &amp;#8211; 10 cm dbh) or larger trees (dbh &gt; 30 cm). The medium-sized trees which may have experienced resource competition but have now transitioned into the canopy layer (exposed to sunlight) are able to use additional nutrient for active growth. In contrast, bigger trees may allocate extra nutrient for reproduction and leaf-vitality, while smaller trees remain shaded, co-limited by sunlight and therefore unable to utilize increased available nutrients for stem diameter growth. ANPP increased by 39% with N addition and marginally by 23% with K additions relative to the control. In conclusion, our experiment provides evidence of N and potentially K limitation of ANPP in this lower-montane tropical forest, and highlights that, in a highly diverse ecosystem different components of ANPP may be regulated by multiple nutrients.&amp;#160;&lt;/p&gt;

scholarly journals Chiropteran Diversity in Different Settings of the Uplifted Coral Reef Tropical Forest of Taiwan

2007 ◽  
Vol 88 (5) ◽  
pp. 1239-1247 ◽  
Author(s):  
Ya-Fu Lee ◽  
Yen-Min Kuo ◽  
Wen-Chen Chu ◽  
Yu-Hsiu Lin
Keyword(s):  
Coral Reef ◽  
Tropical Forest

scholarly journals Pattern of litterfall and return of nutrients in five Oak species of mixed Oak forest of Manipur, North-East India

2017 ◽  
Vol 2 (1) ◽  
pp. 1 ◽  
Author(s):  
Ng. Lamnganbi Devi ◽  
E. Jadu Singh
Keyword(s):  
Leaf Litter ◽  
Tree Species ◽  
Forest Floor ◽  
Turnover Time ◽  
Litter Production ◽  
Oak Forest ◽  
Nutrient Return ◽  
North East India ◽  
North East ◽  
Leaf Litterfall

Litterfall and its nutrient return in five oak species were studied in the mixed Oak forest in Senapati District, Manipur .Litter production was measured by litter trap method. The total annual litterfall was 958.9 g m-2yr-1.Leaf and non leaf litterfall comprises 76.7 % and 23.3 % of the total litterfall. Maximum litterfall was found in the month of April (193.5 g m-2) and minimum in the month of July (23.7 g m-2).About 70% of the forest floor was replaced each year with turnover time of 1.42 yr.The amount of nutrient return through leaf litter was found to be maximum in Q.polystachya and minimum in C.indica. Nutrients (NPK) concentration of leaf litter of five different tree species was varied among different tree species.

scholarly journals Integrating forest-pasture: Spatial analysis and delineation of zones of litter production and nutrient return

2015 ◽  
Vol 36 (6Supl2) ◽  
pp. 4377
Author(s):  
Sabino Pereira da Silva Neto ◽  
Antonio Clementino dos Santos ◽  
Raimundo Laerton de Lima Leite ◽  
José Expedito Cavalcante da Silva ◽  
Durval Nolasco Neves Neto ◽  
...  
Keyword(s):  
Spatial Analysis ◽  
Treatment Plant ◽  
Principal Component ◽  
Soil Surface ◽  
Plant Litter ◽  
Litter Production ◽  
Nutrient Accumulation ◽  
Nutrient Return ◽  
Forest Strata ◽  
Equidistant Points

<p>This study aimed to quantify, describe, and identify plant litter production and nutrient accumulation zones in different forest-pasture integration (FPI) systems and forest strata of the Cerrado-Amazon transition on typical orthic Quartzarenic Neosol using spatial analysis, principal component analysis, and non-hierarchical fuzzy k-mean clustering logic techniques. The evaluations were performed at two FPI systems comprising a combination of <em>Brachiaria brizantha </em>cv. Marandu and thinned native vegetation with 50 and 75% (FPI-I and FPI-II, respectively) shade in an original thinned forest (NFI) and in an original intact forest (NF-II) with 80 and 95% shade, respectively. An area of 4,000 m² (40 x 100 m) that contained 32 sampling points arranged in a 4 x 25 m grid was demarcated for each treatment. Plant litter was collected using 32 collectors installed at equidistant points. Twelve nylon bags were placed on the soil surface at each point to evaluate the plant litter decomposition, totaling 384 bags per treatment. It was possible to quantify, describe, and define plant litter production and nutrient accumulation zones in different FPI systems and forest strata of the Cerrado-Amazon transition on orthic Quartzarenic Neosol using geostatistical analysis, principal components, and non-hierarchical fuzzy k-mean clustering logic procedures.</p>

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