Jose Luiz Stape

• PhD
• Professor (Associate) at North Carolina State University

Realistic representations of plant carbon exchange processes are necessary to understand the growth and productivity of forests and to understand how plants will behave in future climate change scenarios. These processes are known to vary over depending on environmental and genetic factors. Here, we used the model by Farquhar et al. (Plant 149:78–9...

Carbon sequestration by forest plantations, for commercial or restoration purposes, is a nature-based solution to mitigate the impacts of climate change. One of the methodologies suggested by IPCC to quantify carbon sequestration in biomass by forest plantations is to use biomass expansion factors. These factors derive aboveground (BEF) and belowgr...

The Genetics-Genomics, Management-Modelling, Protection-Products (G2M2P2) experimental network consists of 71 experiments of five themes (C = clonal-protection, P = soil preparation, N = nutrition, E = spacing and M = weed -competition) installed in 2016-2017 in 18 places of edaphoclimatic representativeness of Suzano SA. In the “C” tests, a total...

Eucalyptus growth driver has been deeply studied and associated with species/clones, soil type, fertilization regime, spacing, weed control, temperature, and rainfall over the years. In parallel a lot of effort has been carried out to understand eucalypt root system, and at spot trials, proved to be important to fully describe Eucalyptus growth in...

Forest yield is significantly influenced by silvicultural practices. Moreover, environmental conditions play key role in trees’ growth and wood features. Accordingly, the aim of the current study is to explore the effects of age, location, fertilization and thinning on the wood quality of Pinus taeda trees grown in different sites in Southern Brazi...

The Global Ecosystem Dynamics Investigation (GEDI) is a high-resolution lidar instrument, facilitating landscape monitoring through forest structure and biomass assessments. Previous research has mainly focused on estimating forest attributes such as height and biomass from GEDI data. In this comprehensive study, we empirically investigate how Euca...

Forest inventory is an important activity for planning and decision-making in forest management. It is usually carried out in the field using different sampling methods and processes, which are usually limited by its high costs and by the scarcity of manpower. In this work, we evaluate deep learning methods in qualitative forest inventory of Eucaly...

Stocking in forests strongly influence stand growth by influencing resource capture, tree survival, and competition between trees and understory vegetation. Many studies have examined these patterns for specific locations and conditions, though with limited populations of inference. The influence of stocking was examined in the TECHS experimental p...

Silvicultural activities employed during stand development are used to manage the distribution of site resources (light, water and nutrients) to the trees within the stand. Because heterogeneity within forest plantations has been shown to increase the number of dominated trees and decrease stand productivity, the establishment of efficient and prod...

The extent of the potassium (K) limitation of forest productivity is probably more widespread than previously thought, and K limitation could influence the response of forests to future global changes. To understand the effects of K limitation on forest primary production, we have developed the first ecophysiological model simulating the K cycle an...

The aim of this study was to conduct single-and multi-trait genome wide association studies (GWAS) and identify quantitative trait loci (QTLs) for the expression of phenotypic traits in Eucalyptus grandis. We evaluated an open-pollinated breeding population with 1772 genotypes composed of 25 different families established using a randomized complet...

The extent of the potassium (K) limitation of forest productivity is probably more widespread than previously thought, and K-limitation could influence the response of forests to future global changes. To understand the effects of K-limitation on forest primary production, we have developed the first ecophysiological model simulating the K cycle an...

Sewage sludge (SS) application to Eucalyptus urograndis plantations can result in wood yields rivalling those achieved when mineral fertilizers are used. While climatic conditions determine Eucalyptus growth and wood production, the use of fertilizers containing boron (B) can mitigate the impact of drought on Eucalyptus growth. We hypothesized that...

The choice of initial spacing (stocking or density) for plantations influences the amount of growth resources available for each tree, rates of growth and survival, and the stand-level wood production and profit. A given number of trees per hectare can be arranged in various geometric ways, with designs varying the spacing between planting rows, an...

O uso de índices de vegetação para estimar a área foliar e a biomassa do fuste tem apresentado grande aplicabilidade em plantios florestais permitindo conhecer os processos ecofisiológicos que controlam as florestas. Entretanto, o Pinus no Brasil ainda carece de pesquisas nesta área. Diante dessa carência, este estudo tem como objetivo caracterizar...

Sewage sludge (SS) application to Eucalyptus plantations can result in wood yields rivalling those achieved when mineral fertilizers are used. While climatic conditions determine Eucalyptus growth and wood production, the use of fertilizers containing boron (B) can mitigate the impact of drought on Eucalyptus growth. We hypothesized that SS applica...

Full waveform (FW) LiDAR systems have proven their effectiveness to map forest biophysical variables in the last two decades, owing to their ability of measuring, with high accuracy, forest vertical structures. The Global Ecosystem Dynamics Investigation (GEDI) system on board the International Space Station (ISS) is the latest FW spaceborne LiDAR...

Over the past two decades, spaceborne LiDAR systems have gained momentum in the remote sensing community with their ability to accurately estimate canopy heights and aboveground biomass. This study aims at using the most recent Global Ecosystem Dynamics Investigation (GEDI) LiDAR system data to estimate the stand-scale dominant heights (H<sub>dom</...

The Global Ecosystem Dynamics Investigation LiDAR (GEDI) is a new full waveform (FW) based LiDAR system that presents a new opportunity for the observation of forest structures globally. The backscattered GEDI signals, as all FW systems, are distorted by topographic conditions within their footprint, leading to uncertainties on the measured forest...

Understanding the processes that underlie the effects of tree diversity on primary production is of foremost importance to enhance climate change mitigation by tropical forests. Here, we investigated the effects of tree diversity on light interception over space and time in two tropical tree experiments, located in Panama—Sardinilla site (monocultu...

Cross-site patterns for multiple sites tend to be more broadly applicable and more useful for constructing and constraining models. We examined cross-site patterns of Eucalyptus plantation response to water supply (including irrigation and 1/3 precipitation removal), mean annual temperature (MAT), vapor pressure deficit during the daytime (VPD), an...

Phenotypic plasticity refers to the ability of a single genotype to express distinct phenotypes in response to the environment, a crucial feature for sessile organisms like forest trees, especially in a scenario of global climate change. Several studies show that epigenetic regulation plays an important role in this plastic adaptation response, dri...

Phosphate fertilizers used in planted forests mainly come from scarce and non-renewable sources, and there is a need for new sources of phosphorus (P). An alternative is the use of sewage sludge (SS), rich in organic matter, nitrogen, and P. The objectives were to evaluate the soil P availability and its effect on wood production in 22-month-old Eu...

Clonal plantations of Eucalyptus are among the most productive forests in the world, with intensification of silviculture and genetic breeding doubling the wood mean annual increments over the past four decades. The TECHS Project demonstrated that even with intensive silviculture, wood production varies by more than twofold across environmental gra...

We examined the influence of stand density and genotype on transpiration and water use efficiency in high productivity plantations. Three widely planted Eucalyptus clones that differ in drought tolerance and productivity (E. urophylla, E. urophylla × E. grandis and E. grandis × E. camaldulensis, clones IP, B2 and C3, respectively) were measured at...

High stocking short rotation plantations provide high yields for bioenergy use and have been adopted worldwide, especially in tropical areas. This silvicultural approach might alter ecosystem water balances compared with lower stocking, longer rotation practices. The sensitivity of water balance to stocking might also differ among genotypes. We eva...

Growth models have been applied to assess the growth potential for areas without previous forest plantation records and to update forest inventory when commercial stands have been planted. However, there is a lack of growth models capable of incorporating environmental variables for updating forest inventories and re-computing site quality througho...

Differences in growth rates between Eucalyptus clones depend on differences in the acquisition of resources, and the efficiency of using resources to produce carbohydrates and grow wood. We examined differences in canopy structure, light interception, and light use efficiency for the 18 TECHS clones in a common garden experiment in Brazil. The degr...

Growth and yield (G &Y) model systems aim at forecasting forest productivity. The lack of environmental variables to account for how water availability constrains eucalyptus production in Brazil, however, is argued to be a major drawback of these model systems. Thus, this study aimed to develop a stand-level G & Y model system that accounts for wat...

Growth and yield (G &Y) model systems aim at forecasting forest productivity. The lack of environmental variables to account for how water availability constrains eucalyptus production in Brazil, however, is argued to be a major drawback of these model systems. Thus, this study aimed to develop a stand-level G & Y model system that accounts for wat...

Several approaches for modeling whole-stand survival or mortality have been reported in the literature, although this component is often times neglected for clonal eucalypt stands in Brazil. In addition, the traditional form for projecting whole-stand survival appears incomplete for clonal eucalypt stands, since this tree species is highly sensitiv...

Linking individual-tree and stand-level growth models is required for estimating future forest stand structure, while maintaining the desired accuracy for forest management decision making. There is a scarcity of studies addressing this issue for clonal Eucalypt stands in Brazil. Thus, this paper aims to develop a compatible individual tree and sta...

The research objective of this paper was to group eleven widely planted eucalypt clones based on their volume yield pattern by assessing how climatic variation impacts their productivity in tropical Brazil. A total of 187 plots evenly distributed across eleven clones and 17 sites (from Paraná to Pará State) were used. Plot measurements were carried...

Lack of generalized equations has prevailed in Brazil, because it is assumed that localized or climate-specific equations are needed. This study aimed to develop generalized stem taper and volume equations applicable to 11 eucalyptus clones and evaluate if climate variation impacts the accuracy of the estimates. A total of 693 trees evenly distribu...

Although Brazil is predominantly a tropical country, frosts are observed with relative high frequency in the Center-Southern states of the country, affecting mainly agriculture, forestry, and human activities. Therefore, information about the frost climatology is of high importance for planning of these activities. Based on that, the aims of the pr...

Previous work indicates that Pinus taeda L. grows faster and has a higher carrying capacity when grown outside its native range. We were interested in examining the hypotheses that growth, light use efficiency (volume growth and absorbed photosynthetically active radiation relationship, LUE) and volume growth per unit heat sum is the same for nativ...

Integrated Pest Management (IPM) is a silvicultural tool for the detection, monitoring and control of insects to maintain the forest productivity. Suzano Pulp and Paper has silvicultural operations in more than 550,000 ha of Eucalyptus plantations under subtropical, tropical and equatorial climatic conditions, and the Red gum lerp psyllid (PSC-Glyc...

Forest companies across the world, from the tropics to temperate climates, are increasingly use Eucalyptus plantations as the main source of wood as raw material for wood and non-wood products, such as firewood, charcoal, pulp and paper, sawtimber and essential oils. This broad adaptation and application of Eucalyptus are linked with the natural ge...

Global climatic changes may deeply affect the functioning ofEucalyptusplantations, es-pecially through the increase in frequency and duration of droughts and storms. However,the long-term responses of trees to the interactions of the different changing environmentalfactors remain largely unknown. It is therefore crucial to gain knowledge on the dri...

www.ipef.br/eucalyptusguide This book aims to serve as a field tool for rural producers and city planners to identify the main Eucalyptus species grown in Brazil. The book also brings relevant information to researchers and forest professionals on the specific climatic needs for each species in the form of charts, tables, and maps. An identificatio...

In Brazil, and especially in the Paraíba Valley region, Southeastern Brazil, Eucalyptus plantations are expanding to high declivity areas formerly occupied by degraded pastures, due to the limited agricultural value of these topographies and their forestry aptitude. The objective of this study was to evaluate the effect of different methods of soil...

A mensuração sistemática e de alta frequência do crescimento das árvores fornece subsídios fundamentais para estudos de ecologia e manejo florestal. Medições repetidas do tamanho da árvore, tomadas diretamente com suta ou fita diamétrica, podem ser fontes de alguns erros de observação. As fitas dendrométricas são normalmente usadas para minimizar o...

Background and aims While the role of deep roots in major ecosystem services has been shown for tropical forests, there have been few direct measurements of fine root dynamics at depths of more than 2 m. The factors influencing root phenology remain poorly understood, creating a gap in the knowledge required for predicting the effects of climate ch...

Intensively managed plantations account for 1.5% of the world’s forests, but they meet one-third of the demand for wood products. Eucalyptus plantations are among the most productive, with rates of growth depending heavily on genetics, silviculture, and climate. The TECHS Project examines productivity at 36 locations across a 3500 km gradient from...

Finding suitable models of canopy reflectance in forward simulation mode is a prerequisite for their use in inverse mode to characterize canopy variables of interest, such as leaf area index (LAI) or chlorophyll content. In this study, the accuracy of the three-dimensional reflectance model DART (Discrete Anisotropic Radiative Transfer) was assesse...

The goals of this study were to identify and group three eucalyptus clones, each under coppice and clear-cut management regimes, into two or more groups based on similar growth rates; and fit a site index equation as a function of rainfall variables for each group to evaluate how different groups were impacted by climatic variation. The database ca...

O objetivo desse trabalho foi caracterizar a madeira serrada de clones de Eucalyptus com 7 a 13 anos, plantados comercialmente na região de Entre Rios e Esplanada, BA. Para efeito de comparação e como referência, foram utilizadas amostras de Eucalyptus cloeziana com 22 anos, em função da ótima aptidão dessa espécie para serraria. As amostras foram...

The choice of planting density and tree genotype are basic decisions when establishing a forest stand. Understanding the interaction between planting density and genotype, and their relationship with biomass production and potential water stress, is crucial as forest managers are faced with a changing climate. However, few studies have investigated...

Climate models predict that the frequency, intensity and duration of drought events will increase in tropical regions. Although water withdrawal from deep soil layers is generally considered to be an efficient adaptation to drought, there is little information on the role played by deep roots in tropical forests. Tropical Eucalyptus plantations man...

Eucalyptus plantations of Brazil are expanding to areas subjected to water stress, and the water stress is considered a main environmental factor that limit growth and productivity of plantations, this occurrence implies the necessity for advance knowledge about physiological processes of Eucalyptus under different conditions of water availability....

www.ipef.br/publicacoes/guiaeucalyptus Este guia tem como objetivo servir de ferramenta de campo ao produtor rural e urbanistas para identificação das principais espécies de Eucalyptus cultivadas no Brasil. O livro traz ainda informações relevantes a pesquisadores e profissionais florestais sobre as necessidades climáticas das espécies na forma de...

Supplementary information from doi: 10.1111/1365-2435.12727

Soil CO2 flux (Fs) can be measured either manually or automatically. While manual measurements are well suited to capture the spatial variability of Fs, automated measurements are able to capture its temporal variability at fine time scales. The manual method is the most commonly used method to estimate annual carbon budgets. However, such estimate...

Brazilian forest-based industries are supported by more than 5.5 million hectares of Eucalyptus growing under different climatic conditions with different degrees of favourability for rust Puccinia psidii, including both traditional and expanding areas, where such disease is of major concern for the industry, foresters and scientists. The main obje...

Fertilization of Pinus radiata plantations mid-rotation after thinning can alter soil nitrogen availability. However, the magnitudes and durations of tree and stand growth responses are not well understood across different soils with specific site conditions. Two mid-rotation fertilization trials in Pinus radiata plantations with unexpected sustain...

Understanding the consequences of changes in climatic and biological drivers on tree carbon and water fluxes is essential in forestry. Using a metamodeling approach, sensitivity and uncertainty analyses were carried out for a tree-scale model (MAESPA) to isolate the effects of climate, morphological and physiological traits, and intertree competiti...

Justificativa: O objetivo deste manual é auxiliar as empresas participantes do projeto PPPIB na determinação do IAF nos momentos propostos (junto ao inventário anual), uma vez que os aparelhos utilizados apresentam limitações em virtude das condições climáticas necessárias para a medição. No entanto, este manual não visa substituir a medição realiz...

We examined the change in spatial structures of Eucalyptus plantations across different types of silvicultural treatments over a full rotation. Clonal and seed-origin Eucalyptus plots applied with differing levels of fertilization (high vs. traditional) and irrigation (irrigated vs. non-irrigated) treatments were investigated. Additionally, for the...

The leaf area index (LAI) has been used as a forestry management tool, since it can be used as a reference for the performance of biophysical and physiological processes. Several indirect methods used to determine LAI have been used, but few studies address the calibration of these methodologies at different ages of the forest crop cycle. The LAI-2...

This study aimed to map the stem biomass of an even-aged eucalyptus plantation in southeastern Brazil based on canopy height profile (CHPs) statistics using wall-to-wall discrete return airborne laser scanning (ALS), and compare the results with alternative maps generated by ordinary kriging interpolation from field-derived measurements. The assess...

A nutrient dose and application frequency study was installed in Eucalyptus grandis stands at six sites in the Colombian Andes to examine three hypotheses: (1) individual sites have different treatment responses (there is a significant site effect); (2) the relationship between volume growth response and applied nitrogen is not linear (there is an...

The effects of tillage, vegetation control, and fertilizer treatments applied at stand establishment of Pinus radiata D. Don. at three sites (Sand, Clay, and Ash) in Chile were examined 10 years after planting. Selected sites were typical of sites that routinely received tillage as a normal part of site preparation operations in Chile. At each site...

Leaf wetness duration (LWD) is recognized as a very important conditioner of crops and forests diseases, but clearly, there is a considerable gap in literature on temporal models for prediction of LWD in broad regions from standard meteorological data. The objective of this study was to develop monthly LWD models based on the relationship between h...

Key messageThe selection of stable metrics can generate reliable models between different data sets. The height metrics provide the greatest stability, specifically the higher percentiles and the mode. Height metrics transfer more predictive power than density metrics.ContextIn forestry, there is an increasing development of aerial laser scanning (...

We tested the hypotheses that Pinus taeda L. ecosystems (trees plus forest floor plus soil) can retain nitrogen, phosphorus, potassium, calcium, and magnesium applied as fertilizer. We accomplished this by comparing the ecosystem nutrient content in fertilized plots with the content in nonfertilized plots under ambient rainfall and ambient rainfall...

O objetivo deste trabalho foi analisar o histórico do perigo de incêndio florestal dos últimos 70 anos na região de Piracicaba e validar a Fórmula de Monte Alegre (FMA) com dados de focos de calor provenientes de sensoriamento remoto orbital. Foram usados dados de umidade relativa do ar (URd) e precipitação de uma estação meteorológica convencional...

This study aimed at analyzing the historic of the forest fire danger in the last 70 years in Piracicaba and to validate the Monte Alegre Formula (FMA) with data of heat spots from remote sensing. A database of relative humidity (RHd) and rainfall from a conventional weather station (EMC) and from an automatic weather station (EMA), both located in...

Background/Question/Methods Background/Question/Methods Short rotation eucalyptus plantations offer great potential for increasing wood-fiber production in the southeastern United States. Eucalyptus plantations can be highly productive (>35 m3 ha-1 year-1), but they use a lot of water and this has raised concern about how expansion of eucalyptu...

Development of a relatively simple growth modelling approach for plantation species that allows derivation of cardinal (base, optimum and ceiling) air temperatures for growth, whilst accounting for changes in organism size, would represent a considerable advance over existing models. Such an approach would provide insight into species phenology and...

There is growing interest in using switchgrass (Panicum virgatum L.) as a biofuel intercrop in forestry systems. However, there are limited data on the longevity of intercropped bioenergy crops, particularly with respect to light availability as the overstory tree canopy matures. Therefore, we conducted a greenhouse study to determine the effects o...

Os plantios clonais de Eucalyptus são hoje uma regra na eucaliptocultura, tanto nas áreas tradicionais de produção como nas novas fronteiras florestais. No entanto, enquanto nas áreas tradicionais há uma maior segurança quanto à adaptação e capacidade produtivida dos clones, nas novas áreas há maiores riscos associados à produção florestal devido a...