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You searched for: Journal Southern forests Remove constraint Journal: Southern forests Publication Year 2014 Remove constraint Publication Year: 2014 Text Availability Citation in PubAg Remove constraint Text Availability: Citation in PubAg
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1. Characterising the diameter distribution of Sal plantations by comparing normal, lognormal and Weibull distributions at Tilagarh Eco-park, Bangladesh

Author:
Jiban Chandra Deb; Md Habibur Rahman Salman; Md Abdul Halim; Md Qumruzzaman Chowdhury; Anindita Roy
Source:
Southern forests 2014 v.76 no.4 pp. 201-208
ISSN:
2070-2639
Subject:
Shorea robusta; forest stands; foresters; forests; models; plantations; prediction; probability; stand structure; timber management; trees; Bangladesh
Abstract:
... For many years foresters have been using statistical probability density functions to describe and characterise stand structure. Predicting the current and future yields of a stand is essential for successful stand and timber management. Implicit prediction of current yield is accomplished by using diameter distribution methods. All diameter distribution yield systems predict the number of trees p ...
DOI:
10.2989/20702620.2014.947077

2. Culture-independent detection and quantification of Fusarium circinatum in a pine-producing seedling nursery

Author:
Gerda Fourie; Michael J Wingfield; Brenda D Wingfield; Nicky B Jones; Andrew R Morris; Emma T Steenkamp
Source:
Southern forests 2014 v.76 no.3 pp. 137-143
ISSN:
2070-2639
Subject:
Fusarium circinatum; conidia; dieback; forests; fungicides; inoculum; insect control; mortality; pathogens; quantitative polymerase chain reaction; root crown; sanitation; seedlings; shoots
Abstract:
... The primary symptoms associated with Fusarium circinatum infection in pine seedling nurseries are root and collar rot, shoot and tip die-back and seedling mortality. Management of this pathogen in nurseries usually involves the integration of various strategies relating to sanitation, insect control and fungicide treatment. The overall goal of this study was to use quantitative real-time PCR (qPCR ...
DOI:
10.2989/20702620.2014.899058

3. Difference in shade tolerance affects foliage–sapwood response to thinning by two eucalypts

Author:
Rui Ling Yao; Kevin Glencross; J Doland Nichols
Source:
Southern forests 2014 v.76 no.2 pp. 93-100
ISSN:
2070-2639
Subject:
Corymbia citriodora; Eucalyptus; canopy; forests; leaf area; leaves; plantations; sapwood; shade tolerance; trees; Australia
Abstract:
... In eucalypt plantations in subtropical Australia, Eucalyptus dunnii exhibits greater diameter increment after thinning than more shade-tolerant Corymbia citriodora . To elucidate the mechanism underlying this difference, we investigated relationships between tree leaf area and sapwood area following thinning in 11-year-old E. dunnii and C. citriodora plantations. There was no significant differenc ...
DOI:
10.2989/20702620.2014.917354

4. Diversity and structure of woody vegetation across areas with different soils in Gonarezhou National Park, Zimbabwe

Author:
Edson Gandiwa; Patience Zisadza-Gandiwa; David Goza; Clayton Mashapa; Never Muboko
Source:
Southern forests 2014 v.76 no.2 pp. 111-116
ISSN:
2070-2639
Subject:
conservation areas; ecosystems; edaphic factors; forests; national parks; savannas; soil; species diversity; vegetation structure; woodlands; woody plants; Zimbabwe
Abstract:
... Despite the importance of edaphic factors in influencing woody vegetation diversity and structure in savannas, there is still limited research on the topic across most savanna ecosystems. Here we investigate the differences and/or similarities of woody vegetation diversity and structure across areas with different edaphic factors (i.e. soil group) in Gonarezhou National Park, Zimbabwe. We stratifi ...
DOI:
10.2989/20702620.2014.921007

5. Effects of plantation residue management on the community structure of wattle regeneration invertebrate pests in South Africa

Author:
Prem Govender
Source:
Southern forests 2014 v.76 no.4 pp. 229-236
ISSN:
2070-2639
Subject:
Acacia mearnsii; Diplopoda; Elateridae; Formicidae; Isoptera; Nematoda; Orthoptera; Quercus; community structure; cutworms; death; fallow; forests; grasshoppers; growing season; guidelines; mortality; multivariate analysis; pesticide application; plantations; planting; seedlings; silviculture; soil invertebrates; spatial distribution; South Africa
Abstract:
... There is a limited availability of land for the expansion of South African black wattle plantations. One way to increase productivity is to ensure the survival of seedlings during regeneration, thereby increasing the stocking of compartments. Soil invertebrate pests constitute one of the important causes of seedling mortality. The effect of different plantation residue management practices on the ...
DOI:
10.2989/20702620.2014.957596

6. Genetic parameters for Fusarium circinatum tolerance within openpollinated families of Pinus patula tested at screening facilities in South Africa and the USA

Author:
Andre Nel; Gary R Hodge; Kgosi E Mongwaketsi; Arnulf Kanzler
Source:
Southern forests 2014 v.76 no.3 pp. 145-150
ISSN:
2070-2639
Subject:
Fusarium circinatum; Pinus patula; breeding; crops; forests; fungi; genetic variation; greenhouses; hygiene; mortality; open pollination; screening; seedlings; trees; South Africa; United States
Abstract:
... The pine pitch canker fungus, Fusarium circinatum , has caused large-scale mortality of Pinus patula Schiede & Deppe ex Schltdl. & Cham. crops in South African nurseries. This disease is now managed with strict hygiene practices and mortality in commercial nurseries has been drastically reduced. During the last 10 years, however, the disease started to manifest in the field, impacting on post-plan ...
DOI:
10.2989/20702620.2014.916500

7. Modelling dominant height and site index in different edaphoclimatic zones of Nothofagus dombeyi secondary forest in the Andes of south-central Chile

Author:
Carlos Esse; Pablo J Donoso; Víctor Gerding; Celso Navarro; Francisco Encina-Montoya
Source:
Southern forests 2014 v.76 no.4 pp. 221-228
ISSN:
2070-2639
Subject:
Nothofagus dombeyi; forest resources; foresters; growth models; landowners; secondary forests; site index; trees; Andes region; Chile
Abstract:
... Nothofagus dombeyi grows in a wide variety of sites. The information about its productivity is still scarce, which makes it difficult for foresters and landowners to take decisions about the best practices to maintain and/or improve the goods and services derived from the forest. The aim of this study was to construct dominant tree height functions and site index curves for secondary forests of No ...
DOI:
10.2989/20702620.2014.956026

8. Models for estimation of tree volume in the miombo woodlands of Tanzania

Author:
Ernest W Mauya; Wilson A Mugasha; Eliakimu Zahabu; Ole M Bollandsås; Tron Eid
Source:
Southern forests 2014 v.76 no.4 pp. 209-219
ISSN:
2070-2639
Subject:
branches; forest management; forests; models; prediction; tree and stand measurements; trees; woodlands; Tanzania
Abstract:
... Volume of trees is an important parameter in forest management, but only volume models with limited geographical and tree size coverage have previously been developed for Tanzanian miombo woodlands. This study developed models for estimating total, merchantable stem and branches volume applicable for the entire miombo woodlands of Tanzania. We used data from 158 destructively sampled trees, includ ...
DOI:
10.2989/20702620.2014.957594

9. Re-use of seedling containers and Fusarium circinatum association with asymptomatic Pinus patula planting stock

Author:
Andrew R Morris; Gerda Fourie; Izette Greyling; Emma T Steenkamp; Nicoletta B Jones
Source:
Southern forests 2014 v.76 no.3 pp. 177-187
ISSN:
2070-2639
Subject:
Fusarium circinatum; Pinus patula; containers; control methods; crops; discoloration; forests; hygiene; inoculum; mortality; open pollination; pathogens; planting; root systems; sanitation; screening; seedling growth; seedlings; steam; Southern Africa
Abstract:
... Fusarium circinatum is a pathogen causing serious post-planting mortality of Pinus patula seedlings in southern Africa. Containerised planting stock that is asymptomatic but associated with F. circinatum in the nursery is thought to be the cause of this problem. The aim of this study was to determine if re-use of seedling containers could be a source of inoculum resulting in asymptomatic planting ...
DOI:
10.2989/20702620.2014.957491

10. Survival, growth, wood basic density and wood biomass of seven-year-old Casuarina species/provenances grown at Kongowe, Kibaha, Tanzania

Author:
Abeid I Kindo; Ezekiel Edward; Mathew A Mndolwa; Shabani AO Chamshama
Source:
Southern forests 2014 v.76 no.2 pp. 85-92
ISSN:
2070-2639
Subject:
Casuarina equisetifolia; biomass production; forests; national parks; planting; provenance; wood; wood density; Benin; Egypt; Indonesia; Tanzania; Thailand; Timor
Abstract:
... A performance comparison of seven-year-old individuals of 13 Casuarina species/provenances in terms of survival, growth (diameter, height and volume), wood basic density and wood biomass was undertaken at Kongowe, Kibaha, Tanzania. The trial was laid out using a randomised complete block design with four replications. The results showed significant differences (P < 0.0001) in all parameters. Casua ...
DOI:
10.2989/20702620.2014.915370

11. Testing pelargonic acid and pyraflufen-ethyl with glyphosate as alternatives to paraquat dichloride for the preparation of fire-break tracer lines at Underberg, South Africa

Author:
Keith M Little; Ryan Nadel
Source:
Southern forests 2014 v.76 no.2 pp. 67-73
ISSN:
2070-2639
Subject:
application timing; fire break; forests; glyphosate; paraquat; pelargonic acid; risk; screening; spraying; summer; vegetation cover; South Africa
Abstract:
... Over the past 31-year period, about 18 700 ha annum ⁻¹ of planted forests in South Africa have been lost through fire. In forested areas where the risk of fire entering compartments is always high, fire-break tracer lines are prepared by spraying with a suitable herbicide such that the adjacent vegetation is still 'green' when these tracer lines can be burned. Once the vegetation between these tra ...
DOI:
10.2989/20702620.2014.893683

12. Variation in strength, stiffness and related wood properties in young South African-grown Pinus patula

Author:
C Brand Wessels; Francois S Malan; Daan G Nel; Tim Rypstra
Source:
Southern forests 2014 v.76 no.1 pp. 37-46
ISSN:
2070-2639
Subject:
Pinus patula; forests; modulus of elasticity; modulus of rupture; pith; prediction; sawlogs; softwood; trees; wood properties; South Africa
Abstract:
... The objective of this study was to examine the variation in and intercorrelation among wood properties determining the suitability of 16- to 20-year-old South African-grown Pinus patula trees for structural timber. A total of 1 112 sawn boards from 340 logs, 170 trees and 17 different compartments were examined. Sawlogs were taken from two height levels from each tree. The mean modulus of elastici ...
DOI:
10.2989/20702620.2013.870406

13. A comparison of productive and non-productive green water-use efficiency of Podocarpus henkelii and Pinus patula in the KwaZulu-Natal Midlands

Author:
Hartley H Bulcock; Mark B Gush; Graham PW Jewitt
Source:
Southern forests 2014 v.76 no.2 pp. 75-84
ISSN:
2070-2639
Subject:
Pinus patula; Podocarpus; afforestation; canopy; evaporation; forest plantations; forests; fynbos; grasslands; introduced species; models; planning; planting; soil; transpiration; trees; water management; water use efficiency; South Africa
Abstract:
... A number of studies undertaken in South Africa to quantify the green water-use (total evaporation) of introduced commercial forestry species have shown conclusively that green water-use from commercial forest plantations is substantially higher than from the original grasslands or fynbos that were replaced by afforestation. Green water can be categorised into productive (transpiration) and non-pro ...
DOI:
10.2989/20702620.2014.915451

14. The role of the forestry industry for the success of community forestry: a comparative input–output analysis across India and the Philippines

Author:
Jungho Suh
Source:
Southern forests 2014 v.76 no.1 pp. 29-36
ISSN:
2070-2639
Subject:
community forestry; forest industries; forests; issues and policy; supply chain; timber production; wood; India; Philippines
Abstract:
... This paper uses the 'input–output analysis' technique to investigate why the Joint Forest Management program in India has expanded while the uptake of the Community-based Forest Management program in the Philippines has been relatively slow. The forward linkage of the forestry sector with downstream industries in the Philippines was found to be weak when compared with India. In contrast, the wood ...
DOI:
10.2989/20702620.2013.870401

15. The socioeconomic impact of the phasing out of plantations in the Western and Southern Cape regions of South Africa

Author:
M Carien de Beer; Cori Ham; Dirk W Längin; Francois Theron
Source:
Southern forests 2014 v.76 no.1 pp. 57-64
ISSN:
2070-2639
Subject:
business enterprises; community service; employment opportunities; forestry; forests; plantations; stakeholders; supply chain; unemployment; South Africa
Abstract:
... This study investigates the possible socioeconomic impact of the phasing out of nearly 22 500 ha of plantations within the Southern and Western Cape regions of South Africa as a result of a decision made by government in 2000. Data was collected in 2007 from three plantations (one near Grabouw in the Western Cape, and two near George in the Southern Cape) managed by Mountain to Ocean Forestry (Pty ...
DOI:
10.2989/20702620.2013.870386

16. Association of the pitch canker pathogen Fusarium circinatum with grass hosts in commercial pine production areas of South Africa

Author:
Cassandra L Swett; Bernice Porter; Gerda Fourie; Emma T Steenkamp; Thomas R Gordon; Michael J Wingfield
Source:
Southern forests 2014 v.76 no.3 pp. 161-166
ISSN:
2070-2639
Subject:
Briza maxima; DNA; Ehrharta; Fusarium circinatum; Pinus; Pseudotsuga menziesii; disease occurrence; endophytes; forests; fungi; grasses; host range; hosts; inoculum; nucleotide sequences; pathogens; plantations; sanitation; virulence; California; South Africa
Abstract:
... The pitch canker pathogen, Fusarium circinatum , has major impacts on production in pine nurseries and plantations in South Africa. Thus far, efforts to reduce local spread have focused on rouging of infected pines and sanitation to eliminate local sources of inoculum. Although the host range of F. circinatum was thought to be limited to pines and Douglas-fir, recent studies in California indicate ...
DOI:
10.2989/20702620.2014.916087

17. Comparison of the tolerance of Pinus patula seedlings and established trees to infection by Fusarium circinatum

Author:
R Glen Mitchell; Michael J Wingfield; Emma T Steenkamp; Jolanda Roux; Steven Verryn; Teresa A Coutinho
Source:
Southern forests 2014 v.76 no.3 pp. 151-159
ISSN:
2070-2639
Subject:
Fusarium circinatum; Pinus patula; clones; foresters; forests; greenhouse experimentation; greenhouses; open pollination; pathogens; screening; seedlings; seeds; trees; South Africa
Abstract:
... Since the first appearance of Fusarium circinatum in South Africa in 1990, foresters have been challenged with poor field survival of Pinus patula seedlings at establishment. One of the best long-term solutions is to improve the genetic tolerance of P. patula to infection by the pathogen. Currently, large numbers of families are routinely screened for their tolerance to F. circinatum by infecting ...
DOI:
10.2989/20702620.2014.899061

18. Dynamic base-age invariant site index models for Tectona grandis in peninsular India

Author:
Vindhya P Tewari; Juan G Álvarez-González; Klaus von Gadow
Source:
Southern forests 2014 v.76 no.1 pp. 21-27
ISSN:
2070-2639
Subject:
Tectona grandis; equations; forests; models; prediction; site index; trees; variance; India
Abstract:
... Data from 27 remeasured sample plots were used to evaluate dynamic base-age invariant site index models for teak (Tectona grandis) forests in Karnataka, India. The data were obtained in observational field studies covering a wide range of sites in Karnataka and provided up to three interval measurements per plot. All the functions were fitted simultaneously using iterative seemingly unrelated regr ...
DOI:
10.2989/20702620.2013.870398

19. Effect on nursery and field performance of Pinus patula seedlings after inoculation with Fusarium circinatum

Author:
Nicoletta B Jones; Craig M Ford; Marnie E Light; Ryan L Nadel; Izette Greyling; Gerda Fourie; Michael J Wingfield; Andrew R Morris
Source:
Southern forests 2014 v.76 no.3 pp. 125-136
ISSN:
2070-2639
Subject:
Fusarium circinatum; Pinus patula; forestry; forests; fungi; inoculum; mortality; pathogens; plant establishment; seedlings; water stress; South Africa
Abstract:
... Fusarium circinatum is an important fungal pathogen of Pinus species. In South Africa, it is the most significant pathogen of Pinus patula seedlings in forestry nurseries where it presents a substantial constraint to productivity and can continue to cause mortality in-field for up to two years after establishment. This study describes the results from two trials where P. patula seedlings were inoc ...
DOI:
10.2989/20702620.2014.916503

20. Estimating wood volume from canopy area in deciduous woodlands of Zimbabwe

Author:
Tawanda W Gara; Amon Murwira; Emmerson Chivhenge; Timothy Dube; Tsitsi Bangira
Source:
Southern forests 2014 v.76 no.4 pp. 237-244
ISSN:
2070-2639
Subject:
canopy; climatic factors; forests; prediction; regression analysis; remote sensing; trees; variance; wood; woodlands; Zimbabwe
Abstract:
... In this study we tested the predictive ability of canopy area in estimating wood volume in deciduous woodlands of Zimbabwe. The study was carried out in four sites of different climatic conditions. We used regression analysis to statistically quantify the prediction of wood volume from canopy area at species and stand level using field data. Our results revealed that canopy area significantly (P < ...
DOI:
10.2989/20702620.2014.965981

21. Generic linear mixed-effects individual-tree biomass models for Pinus massoniana in southern China

Author:
Liyong Fu; Weisheng Zeng; Huiru Zhang; Guangxing Wang; Yuancai Lei; Shouzheng Tang
Source:
Southern forests 2014 v.76 no.1 pp. 47-56
ISSN:
2070-2639
Subject:
Pinus massoniana; aboveground biomass; allometry; forests; models; tree and stand measurements; trees; China
Abstract:
... Quantification of forest biomass is important for practical forestry and for scientific purposes. It is fundamental to develop generic individual-tree biomass models suitable for large-scale forest biomass estimation. However, compatibility of forest biomass estimates at different scales may become a problem. We developed generic individual-tree biomass models using a mixed-effects modeling approa ...
DOI:
10.2989/20702620.2013.870389

22. Mixed-effects height–diameter models for ten conifers in the inland Northwest, USA

Author:
Curtis L VanderSchaaf
Source:
Southern forests 2014 v.76 no.1 pp. 1-9
ISSN:
2070-2639
Subject:
conifers; forest inventory; forests; models; trees; United States
Abstract:
... To demonstrate the utility of mixed-effects height–diameter models when conducting forest inventories, mixed-effects height–diameter models are presented for several commercially and ecologically important conifers in the inland Northwest of the USA. After obtaining height–diameter measurements from a plot/stand of interest, these mixed-effects models can be calibrated to produce localised individ ...
DOI:
10.2989/20702620.2013.870396

23. Modelling of wander ratios, travel speeds and productivity of cable and grapple skidders in softwood sawtimber operations in South Africa

Author:
Pierre Ackerman; Reino Pulkki; Elizabeth Gleasure
Source:
Southern forests 2014 v.76 no.2 pp. 101-110
ISSN:
2070-2639
Subject:
data collection; forests; harvesting; humans; models; planning; prediction; regression analysis; sawlogs; skidders; softwood; supply chain; trees; South Africa
Abstract:
... The objective of this study was to develop predictive models for cable and grapple skidder wander ratios, travel speeds (loaded and unloaded), and productivity in softwood roundwood sawtimber harvesting operations. For field data collection, the study utilised on-board computing systems supported by manual time study. Four-hundred and twenty-seven extraction cycles over varying terrain and tree si ...
DOI:
10.2989/20702620.2014.917355

24. Percentile-based Weibull diameter distribution model for Pinus kesiya stands in Benguet province, Philippines

Author:
Roscinto Ian C Lumbres; Young Jin Lee
Source:
Southern forests 2014 v.76 no.2 pp. 117-123
ISSN:
2070-2639
Subject:
Pinus kesiya; Weibull statistics; equations; forests; managers; models; prediction; site index; trees; Philippines
Abstract:
... This study was conducted to develop a diameter distribution model for Pinus kesiya stands in Benguet province, Philippines, using the percentile-based Weibull model. The performance of the different equations was examined using evaluation statistics such as the fit index (FI) and root mean square error (RMSE). Results showed a FI range from 0.48799 (minimum diameter) to 0.94071 (95th diameter perc ...
DOI:
10.2989/20702620.2014.918689

25. Pinus patula and pine hybrid hedge productivity in South Africa: a comparison between two vegetative propagation systems exposed to natural infection by Fusarium circinatum

Author:
Craig M Ford; Nicoletta B Jones; Paxie WC Chirwa
Source:
Southern forests 2014 v.76 no.3 pp. 167-175
ISSN:
2070-2639
Subject:
Fusarium circinatum; Pinus patula; Pinus tecunumanii; bags; bark; forests; growing media; hybrids; hydroponics; mortality; pathogens; sand; vegetative propagation; South Africa
Abstract:
... In response to the Fusarium circinatum pine pathogen threat in southern Africa, research has been conducted on the development of F. circinatum- tolerant P. patula and P. patula hybrids. The objective of this study was to investigate the propagation potential of these taxa in two vegetative propagation systems, hydroponic sand beds and polythene bags with composted pine bark growing medium. Signif ...
DOI:
10.2989/20702620.2014.916501

26. Productivity and cost analysis of semi-mechanised and mechanised systems on the Viphya forest plantations in Malawi

Author:
Elisha Ngulube; Michal Brink; Paxie W Chirwa
Source:
Southern forests 2014 v.76 no.4 pp. 195-200
ISSN:
2070-2639
Subject:
Pinus kesiya; chainsaws; economic feasibility; forest plantations; forests; harvest date; inventories; logging; mechanization; models; operating costs; Malawi
Abstract:
... At least 200 000 m ³ of timber is harvested annually using semi-mechanised harvesting systems on the Viphya forest plantations in Malawi. Although these systems have long been used on the Viphya, no investigation on their productivity has so far been reported. Additionally, the absence of localised productivity analyses in Malawi has created a paucity of information on appropriate timber harvestin ...
DOI:
10.2989/20702620.2014.938294

27. Stand structure and regeneration of harvested Araucaria araucana–Nothofagus stands in central Chile

Author:
Rafael M Navarro-Cerrillo; Fernando Olave; Francisco Moreno; Sergio de Miguel; Margarita Clemente
Source:
Southern forests 2014 v.76 no.1 pp. 11-19
ISSN:
2070-2639
Subject:
harvesting; logging; Araucaria araucana; saplings; juveniles; seedlings; principal component analysis; mature plants; shade; stand density; stand basal area; Nothofagus pumilio; stand structure; forests; Chile
Abstract:
... In this study we examined the current structure and regeneration status of mixed Araucaria araucana–Nothofagus spp. stands that had been logged 20 years ago. We measured stand density of saplings, juvenile and adult trees, as well as stand basal area of A. araucana and Nothofagus spp. in 69 plots distributed in five sites in order to characterise diameter distributions using a Weibull function. Ar ...
DOI:
10.2989/20702620.2013.870394

28. Three new and important insect pests recorded for the first time in Colombian plantations

Author:
Carlos A Rodas; Rubén Serna; Brett P Hurley; Maria D Bolaños; Ginna M Granados; Michael J Wingfield
Source:
Southern forests 2014 v.76 no.4 pp. 245-252
ISSN:
2070-2639
Subject:
Pineus; plantations; Glycaspis brimblecombei; Pinus; insect pests; Eucalyptus; hosts; Geometridae; trees; Heteronemiidae; Formicidae; Cupressus; Monalonion; forests; Colombia
Abstract:
... Subsequent to 1950, commercially propagated and non-native trees, including Pinus, Eucalyptus and Cupressus species in Colombian plantations, have been damaged by several native defoliating insects, residing mainly in the Lepidoptera (Geometridae), Phasmatodea (Heteronemiidae) and the Hymenoptera (Formicidae). We report on the relatively recent appearance of three important and damaging new insect ...
DOI:
10.2989/20702620.2014.965983

29. Variability in growth of Vachellia nilotica provenances tested in the Sudano-Sahelian zone of Niger

Author:
Mahamane Larwanou; Rabiou Issa; Mahamane Saadou; Anders Ræbild
Source:
Southern forests 2014 v.76 no.4 pp. 189-194
ISSN:
2070-2639
Subject:
tree and stand measurements; trees; provenance; Vachellia nilotica; stand basal area; forests; Senegal; Pakistan; Yemen; Niger
Abstract:
... A provenance trial of Vachellia nilotica (Acacia nilotica) was conducted in Niger in order to assess variability in growth among 10 provenances from Africa (subsp. adstringens from Niger, Senegal and Cameroun) and outside the continent (subsp. indica from Pakistan and Yemen). Tree height, diameter at breast height and crown diameter were measured 15 years after trial establishment. Comparison of b ...
DOI:
10.2989/20702620.2014.932633