Soil nutrient recovery after shelterwood timber harvesting in a temperate oak hardwood forest: Insights using a twenty-five-year chronosequence

2021 ◽  
Vol 499 ◽  
pp. 119604
Author(s):  
Romy Carpenter ◽  
Elisabeth B. Ward ◽  
Jessica Wikle ◽  
Marlyse C. Duguid ◽  
Mark A. Bradford ◽  
...  
2010 ◽  
Vol 161 (10) ◽  
pp. 401-412
Author(s):  
Renato Lemm ◽  
Oliver Thees ◽  
Urs Hensler ◽  
Jörg Hässig ◽  
Anton Bürgi ◽  
...  

Abstract A model named NBM was developed to judge quantitatively the risks of soil nutrient extraction due to timber harvesting in Switzerland. The model can be used for forest enterprises as well as for larger regions. It assesses nutrient extraction at the level of the single stand as part of a scenario analysis. The extraction of nine nutrients as a result of harvesting is quantified under conditions with different silvicultural and bucking methods. The results are then compared to the soil potentials and changes in these potentials. The simulation results are assessed with respect to sustainability. Two criteria are used to evaluate the long-term risk of nutrient deficiency. The validity of the model in a practical context is limited as more soil informations would be needed. The paper describes structure and functions of the model, its computational implementation, and the results obtained from its first application in the forest enterprise of Bremgarten, Wohlen, Waltenschwil. It ends with a critical analysis of this first implementation of the model.


2020 ◽  
Vol 7 (1) ◽  
pp. 21
Author(s):  
Faradina Marzukhi ◽  
Nur Nadhirah Rusyda Rosnan ◽  
Md Azlin Md Said

The aim of this study is to analyse the relationship between vegetation indices of Normalized Difference Vegetation Index (NDVI) and soil nutrient of oil palm plantation at Felcra Nasaruddin Bota in Perak for future sustainable environment. The satellite image was used and processed in the research. By Using NDVI, the vegetation index was obtained which varies from -1 to +1. Then, the soil sample and soil moisture analysis were carried in order to identify the nutrient values of Nitrogen (N), Phosphorus (P) and Potassium (K). A total of seven soil samples were acquired within the oil palm plantation area. A regression model was then made between physical condition of the oil palms and soil nutrients for determining the strength of the relationship. It is hoped that the risk map of oil palm healthiness can be produced for various applications which are related to agricultural plantation.


1997 ◽  
Author(s):  
Stephen G. Pallardy ◽  
Robert A. Cecich ◽  
H. Eugene Garrett ◽  
Paul S. Johnson
Keyword(s):  

1993 ◽  
Author(s):  
Andrew R. Gillespie ◽  
George R. Parker ◽  
Phillip E. Pope ◽  
George Rink
Keyword(s):  

1985 ◽  
Author(s):  
Robert S. Seymour ◽  
Gordon D. Mott ◽  
Steven M. Kleinschmidt ◽  
Peter Triandafillou ◽  
Robert Keane

1999 ◽  
Author(s):  
Jeffrey W. Stringer ◽  
David L. Loftis ◽  
Michael Lacki ◽  
Thomas Barnes ◽  
Robert A. Muller
Keyword(s):  

2019 ◽  
Author(s):  
João Macedo Moreira ◽  
Aldrin Martin Pérez-Marin ◽  
Jucilene Silva Araújo ◽  
George Rodrigues Lambais ◽  
Aldo Sales

The study aimed to evaluate the efficiency of nutrient use in three cactus forage (CF) cultivars (Opuntia stricta and Nopalea cochenillifera), 365 days after planting under different types of fertilizer in two research sites (Condado and Riachão) of the semi-arid region of Paraiba state, Brazil. The experimental design was a randomized block design with treatments in a factorial scheme (3×4), three cultivars of CF (Orelha de elefante Mexicana; Miúda; Bahiana), and four fertilizer treatment (Control; Manure; Manure with Nitrogen; Mineral fertilization) with four replications. The CF cultivars did not differ significantly in nutrient use. That means of physiological efficiency by CF cultivars were 1.62, and 2.36 kg of biomass per kg of nutrient applied in Condado and Riachão, respectively. The efficiency of nutrient recovery was 16% for the Condado, according the following order: K> P> Ca> N> C = Mg and 12% for Riachão: K> P> N> C = Ca = Mg. In the two research sites, the treatment with mineral fertilization significantly increased the efficiency use of N, P and K in comparison to the other treatments. The average for efficiency of nutrient utilization was 25% and 19% for Condado and Riachão, respectively, in the following order for Condado: K> P> N> Ca = Mg> C, and Riachão: K> P> N> C> Mg = Ca. In a CF production system aiming to obtain a yearly harvest cycle, it is necessary to replenish of K and P to maintain the nutritional balance between the soil and CF plant.


Sign in / Sign up

Export Citation Format

Share Document