Weight and nutrient content of litter during secondary succession on well-drained uplands of the East Gulf Coastal Plain in Mississippi

1991 ◽  
Vol 21 (6) ◽  
pp. 848-857 ◽  
Author(s):  
L. E. Hlnesley ◽  
L. E. Nelson ◽  
G. L. Switzer
Keyword(s):  
Coastal Plain ◽  
Secondary Succession ◽  
Basal Area ◽  
Nutrient Content ◽  
Forest Litter ◽  
Nutrient Concentrations ◽  
Litter Production ◽  
Gulf Coastal Plain ◽  
Pine Stands ◽  
Mature Stands

Production of forest litter was examined over 2 years in a chronosequence of stands representing four stages of secondary succession on well-drained uplands of the East Gulf Coastal Plain in Mississippi. Average age for these stands was from 22 to 207 years. Early succession was dominated by dense pine stands, whereas mature forests were about 75% hardwood. Litter mass was greatest early in succession, when productivity was highest, and decreased as stands matured. Foliage was approximately 70% of the litter throughout succession. The remaining 30% was mostly large woody material in young pine stands, but a heavy reproductive component in mature stands. Stands dominated by pines produced litter throughout the year, whereas hardwood stands were more cyclic. In young pine stands, the N and P content of litter was already 80–90% of the maximum value realized later in succession, whereas Ca and Mg accumulated in proportion to hardwood basal area. Nutrient concentrations in litter varied by season, component, and stage of succession. Foliar litter that fell in the spring and summer had higher N and P concentrations than that that fell in the fall. Seasonal patterns of litter production, as well as variations in nutrient concentration, made the monthly variation of nutrients returned to the forest floor less extreme than that of foliar litter fall weights.

scholarly journals Structural peculiarities of forest litter in water protective pine stands in wet sites of Zhytomyr Polissia

2021 ◽  
Vol 12 (4) ◽  
Author(s):  
A. P. Rasenchuk ◽  
V. Yu. Yukhnovskyi
Keyword(s):  
Layer Structure ◽  
Age Groups ◽  
Forest Litter ◽  
Structural Peculiarities ◽  
Pine Stands ◽  
Composition Structure ◽  
Fallen Leaves ◽  
Active Processes ◽  
Age Range ◽  
Mature Stands

The results of the study of the fractional composition, structure and formation of forest litter in water protection pine plantations, which grow in the predominant moist forest vegetation conditions of Zhytomyr Polissia, are presented. The age range of stands varies between 18 and 85 years. It is established that water-protected pine stands in wet hygrotopes accumulate significant reserves of forest litter, which ranges from 33.0 t/ha in young plantations 77.0 t/ha in mature stands. The distribution of forest litter throughout area in most stands is uniform, although in young plantations its greater share is accumulated between rows. In terms of composition, the forest litter of pure pines is characterized by a medium dense structure, and in pines with an admixture of deciduous species, the litter is usually loose, due to the presence of annual fallen leaves in its upper horizon. The thickness of forest litter between rows of young plantations varies within and 2.6-2.9 cm without its clear distribution on the horizons. In medieval plantations, the horizons of the litter are already clearly distinguished. The total thickness of the litter is 4.0–4.3 cm. In the pre mature and mature pine stands the thickness of the forest litter profile varies between 6.0–6.3 cm. In the stands of older age groups the forest litter has mainly a three-layer structure. The trend of intensive accumulation of forest litter in the conditions of wet boreal and sub boreal conditions with the age of maturity is revealed. In pre mature plantations, the accumulation of litter slows down and in mature plantations; the processes of accumulation and decomposition of litter are leveled. The tendency of predominance of the active part and, accordingly, reduction of the inactive fraction of litter in the pre mature and mature plantations of wet sub boreal site compared to boreal conditions is indicated, which indicates more active processes of mineralization of litter in wet subboreal conditions.

Effect of Altitude and Age of Chir Pine Stands on Litter Production in Mid Hills of Himachal Pradesh

2014 ◽  
Vol 37 (1) ◽  
pp. 17-24
Author(s):  
J. Sharma ◽  
Sandeep Sharma
Keyword(s):  
Management Strategies ◽  
Himachal Pradesh ◽  
Pine Forests ◽  
Litter Production ◽  
Pine Needle ◽  
Fire Control ◽  
Needle Litter ◽  
Pine Stands ◽  
Chir Pine ◽  
Mature Stands

The litterfall under different aged (sapling, pole and mature) Chir pine stands were studied at two sites viz. Nauni and Moti Kona (Kasauli) having altitudes 1250-1275m and 1720-1745m amsl., respectively in the mid hills of Himachal Pradesh throughout the year. The litter comprised of needles, twigs / branch and bark under sapling and pole stands of Chir pine whereas cones were also the part of the total litter production under mature stands at both sites. The litterfall was maximum under mature stands followed by pole and sapling stands at Site-I whereas it was maximum under pole stand followed by mature and sapling stands at Site-II. The needles had the maximum share (93 to 99%) in the total litter under all the Chir pine stands. The average annual litter production under sapling,pole and mature stands was 64.68, 73.49 and 102.01 q/ha, respectively at Site-I whereas at Site-II, it was 33.34, 55.20 and 37.84 q/ha, respectively. The needle fall was maximum in summer months i.e. April and May under all the Chir pine stands at both the sites and it was about 60 to 70 per cent of the total litterfall of the year. The information generated from the present study may be beneficial for devising management strategies for Chir pine needle litter and can also help in making the strategies for fire control in Chir pine forests of mid hills of Himalayas.

Basal-area projection equations for thinned natural even-aged forest stands

1988 ◽  
Vol 18 (7) ◽  
pp. 827-832 ◽  
Author(s):  
Paul A. Murphy ◽  
Robert M. Farrar Jr.
Keyword(s):  
Coastal Plain ◽  
Basal Area ◽  
Shortleaf Pine ◽  
Gulf Coastal Plain ◽  
The West ◽  
General Technique ◽  
Using Data ◽  
Projection Equations ◽  
Better Than

Several existing basal-area projection equations, including one with a thinning term, were compared by using data from a long-term thinning study in natural even-aged stands of loblolly (Pinustaeda L.) and shortleaf pine (Pinusechinata Mill.) in the West Gulf Coastal Plain. The model with the thinning term was no better than existing models with no thinning variable. These results prompted a search to improve the projection models that include thinning. A general technique for introducing a thinning variable into basal-area projection models was developed. This study found that the efficacy of adding a thinning term depends upon the accuracy requirements of the user.

Response of Midrotation Pine Stands to Fertilizer and Herbicide Application in the Western Gulf Coastal Plain

2013 ◽  
Vol 37 (2) ◽  
pp. 69-74 ◽  
Author(s):  
Hal O. Liechty ◽  
Conner Fristoe
Keyword(s):  
Coastal Plain ◽  
Herbicide Application ◽  
Gulf Coastal Plain ◽  
Pine Stands

Loblolly Pine Plantation Development is Influenced by Site Preparation and Soils in the West Gulf Coastal Plain

1989 ◽  
Vol 13 (1) ◽  
pp. 17-21 ◽  
Author(s):  
James D. Haywood ◽  
James D. Burton
Keyword(s):  
Loblolly Pine ◽  
Coastal Plain ◽  
Basal Area ◽  
Site Preparation ◽  
Additional Treatment ◽  
Phosphorus Fertilization ◽  
Gulf Coastal Plain ◽  
The West ◽  
Burn Treatment ◽  
Growing Seasons

Abstract Productivity of upland loblolly pine (Pinus taeda L.) plantations was studied under seven site preparation treatments and five soil classes, with and without fertilizer, in the West Gulf Coastal Plain. Generally, the chop-burn-harrow and shear-windrow-harrow treatments resulted in themost basal area (ave. 112 ft²/ac), but the chop-burn-harrow treatment produced the most fiber (2,109 ft³/ac) after 12 growing seasons. Harrowing as an additional treatment after chopping-and-burning increased productivity by 394 ft³/ac over the chop-burn treatment. The leastproductive treatments were underplant-inject and shear-windrow. Generally, basal area per acre was comparatively high on the silty, slowly permeable clay, and very slowly permeable clay soils (ave. 105 ft ²/ac). Two of the soils, silty and slowly permeable clay, had comparatively highvolume production (ave. 1,878 ft³/ac). The least productive sites had gravelly subsoils. Generally, phosphorus fertilization did not influence pine productivity. South. J. Appl. For. 13(1):17-21.

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