Kiril Manevski

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• PhD Agroecology; MSc. Geoinf. Manag.; Dipl. Env. Eng.
• Researcher at Aarhus University

Quantifying extreme weather events (EWEs) and understanding their impacts on vegetation phenology is crucial for assessing ecosystem stability under climate change. This study systematically investigated the ecosystem growing season length (GL) response to four types of EWEs—extreme heat, extreme cold, extreme wetness (surplus precipitation), and e...

Weather variability, erratic rainfall, and heatwave patterns negatively impact agriculture, the rural community, and the environment of the fragile African economies. Irrigation systems build the resilience of agriculture against weather variability, allowing farmers to tailor their cropping calendars according to demands. The primary goal of this...

Understanding how extreme weather events (EWEs) impact vegetation phenology is crucial for assessing ecosystem stability under climate change. This study systematically investigated the ecosystem growing season length (GL) response to four types of EWEs- extreme heat, extreme cold, extreme wetness (surplus precipitation), and extreme drought (lack...

This paper presents a modelling ensemble to estimate nitrogen requirements (NR) for perennial ryegrass and mixed grasslands from remotely sensed canopy reflectance. We designed a pipeline consisting of two layers, one estimating plant N concentration (PNC) using machine learning regression (MLR), and another estimating biomass production using an i...

Hydrological models with conceptual tipping bucket and process-based evapotranspiration formulations are the most common tools in hydrology. However, these models consistently fail to replicate long-term and slow dynamics of a hydrological system, indicating the need for model augmentation and a shift in formulation approach. This study employed an...

Determining transpiration characteristics and water use strategies of economic tree species is crucial for adaptability evaluations and orchard management in semi-arid areas. This research focused on peach (Prunus persica), walnut (Juglans regia L.), and apple (Malus pumila) trees to quantify variations in sap flow using the thermal dissipation pro...

This study offers new insights into the heterogeneity behind the widely accepted notion that irrigated crops contribute 40% to global food production. It also highlights the potential of irrigation to mitigate the negative effects of climate change on crop yields.

CONTEXT Integrating outdoor poultry production with agroforestry promotes both production and animal welfare, but very little data exist on field nitrate leaching and soil nitrogen (N) balances. OBJECTIVE The objective of the study was to quantify the effect of feed (soybean portion was partly replaced with ‘green’ protein from refined local bioma...

Emerging biorefinery technologies can lead to new applications and new markets for various types of crop biomass. This may allow significant changes in agricultural production from crop rotations dominated by annual grain and seed crops towards annual or perennial cropping systems composed with the aims of higher biomass yield and environmental sus...

Crop rotation and diversification can alleviate the high nitrate leaching associated with maize (Zea mays L.) monoculture, without reducing yields. Prior research focused on maize-legume/cereal rotations, with limited exploration of rotations with industrial crops destined for biorefining. In 2012, four-year rotation systems were established on san...

Field irrigation is the largest consumer of freshwater in the world covering 63 million hectares in the 1900s to 300 million hectares in the early 2000s to provide a multitude of benefits and ecosystem services to people around the globe, such as consistent food supply, higher crop productivity, and shared resource collectivism. Field irrigation in...

Enhancing biomass yield simultaneously with soil carbon (C) sequestration is a key aim of climate-smart cropping systems. Perennialization is believed to be a suitable mitigation strategy for climate change with the potential for enhancing soil C stocks. Based on a nine-year field experiment in Denmark, we measured the changes in soil C and nitroge...

Intercropping legume with grass has potential to increase biomass and protein yield via biological N2-fixation (BNF) benefits, whereas the joint effects of biochar (BC) coupled with deficit irrigation on intercropping systems remain elusive. A 15N isotope-labelled experiment was implemented to investigate morpho-physiological responses of faba bean...

Hydrological models with the conceptual tipping bucket and the process-based evapotranspiration models are the most common tools in hydrology. However, these models consistently fail to replicate long-term and slow dynamics of a hydrological system, indicating the need for model augmentation and shift in approach. This study employed an entirely di...

Reference evapotranspiration (ET 0), an essential variable used to estimate crop evapotran-spiration, is expected to change significantly under climate change. Detecting and attributing the change trend in ET 0 to underlying drivers is therefore important to the adoption of agricultural water management under climate change. In this study, we focus...

Achieving global food security requires an understanding of the current status and the future trends in the yield gap for cropping systems worldwide. The aim of this study was to scientifically understand the existing yield gap research, recognize the knowledge base and influential articles, and uncover key research themes and how these have evolve...

Details for research topic, deadline and submission procedure on https://www.mdpi.com/journal/remotesensing/special_issues/K7E9Z9I99H

https://www.mdpi.com/journal/remotesensing/special_issues/K7E9Z9I99H Special Issue of MDPI Remote Sensing - "Irrigation Mapping Using Satellite Remote Sensing II", edited by Dr. Kiril Manevski, Prof. Mathias N. Andersen, Dr. Junxiang Peng and Prof. Dr. Juan Antonio Rodríguez Díaz.

The two-source energy balance model estimates canopy transpiration (Tr) and soil evaporation (E) traditionally from satellite partitions of remotely sensed land surface temperature (LST) and the Priestley-Taylor equation (TSEB-PT) at seasonal time with limited accuracy. The high spatial-temporal resolution spectral data collected by unmanned aerial...

Agricultural droughts cause a great reduction in winter wheat productivity; therefore, timely and precise irrigation recommendations are needed to alleviate the impact. This study aims to assess drought stress in winter wheat with the use of an unmanned aerial system (UAS) with multispectral and thermal sensors. High-resolution Water Deficit Index...

Intercropping is advantageous for optimizing crop productivity and resources utilization efficiency compared to monocultures. Yet, the effects of water/fertilizer management on crop growth and water use efficiency (WUE) in intercropping systems composed of legumes and non-legumes remain largely elusive. Biochar, as a soil amendment, could increase...

Achieving a pathway for green development is a critically important challenge for agriculture in China and beyond. The current study evaluates the effects of a range of management interventions including planting, fertilizer nitrogen (N) rate optimization and increasing farm size to promote agricultural green development across the North China Plai...

Sustainable agriculture should aim to increase biomass yield and yield stability, while protecting soil carbon (C) and nitrogen (N) content. However, few studies have concurrently explored changes in biomass yield, yield stability and soil C and N content under different cropping systems targeting biorefinery. In this study, 10 different cropping s...

Drought events and their impacts vary spatially and temporally due to diverse pedo-climatic and hydrologic conditions, as well as variations in exposure and vulnerability, such as demographics and response actions. While hazard severity and frequency of past drought events have been studied in detail, little is known about the effect of drought man...

Drought stress often occurs concurrently with heat stress, yet the interacting effect of high vapor pressure deficit (VPD) and soil drying on the physiology of potato plants remains poorly understood. This study aimed to investigate the physiological and growth responses of potatoes to progressive soil drying under varied VPDs. Potato plants were g...

Greening of the Earth is observed during the past several decades and both climatic and non-climatic factors drive this process. However, the greening spatio-temporal patterns and the role of human activities such as agricultural intensification in hyper-arid regions remain unclear. This study aimed to (i) reveal the greening pattern in southern Xi...

Food systems have the potential to promote human health and enhance environmental sustainability; yet most African countries have decadal starvation and malnourishment due to unstable food systems lacking basic nutritional profiles. To understand the key questions of the African food production and food security crisis, it is important to evaluate...

Nitrogen (N) dynamics in ley-arable cropping systems require better understanding in order to assess the potential of such systems to contribute to improved productivity and reduced nutrient losses in crop production. Large inputs of organic matter after termination of the ley phase result in increased mineralization and N availability to subsequen...

Economic tree species growing in the semi-arid Loess Plateau of China are important for maintaining sound economic viability and protecting the fragile hydro-ecological environment. However, their water use strategies and ecological adaptation to dryland environments remain poorly understood. In this study, we measured variations in soil water cont...

It is essential for the sustainable development of farmland landscapes to balance ecosystem service trade-offs and improve resource use efficiency during crop production. Thus, an integrative and concept-centric qualitative approach was applied by combining the patch–corridor–matrix model of landscape ecology and the crop layout theory of farming s...

Drought events and their impacts vary spatially and temporally due to diverse pedo-climatic and hydrologic conditions, as well as variations in exposure and vulnerability, such as demographics and response actions. While hazardous severity and frequency of past drought events have been studied in detail, little is known about the effect of drought...

Remote sensing can be used for precision management to assess plant nitrogen (N) and water (W) status in a spatially detailed and real-time manner. Recent advances in satellite-and drone technology calls for further study and refinement of methodological aspects for estimating plant N and W status. In our field experiment, we used multispectral dat...

The enzymatic activities and ratios are critical indicators for organic matter decomposition and provide potentially positive feedback to carbon (C) loss under global warming. For agricultural soils under climate change, the effect of long-term warming on the activities of oxidases and hydrolases targeting C, nitrogen (N) and phosphorus (P) and the...

Biochar has been advocated as a sustainable and eco-friendly practice to improve soil fertility and crop productivity which could aid in the mitigation of climate change. Nonetheless, the combined effects of biochar and irrigation on tobacco growth and soil nutrients in diverse soil types have been incompletely explored. We applied a split-root exp...

Microsensors are able to accurately quantify nitrous oxide (N2O) emissions in microenvironments at high spatio-temporal resolution; yet, limited studies have been conducted on agricultural soils due to the inability to obtain electrical signal under conditions of low soil moisture. This study improved the calibration of a microelectrode for measuri...

Precision irrigation is a promising method to mitigate the impacts of drought stress on crop production with the optimal use of water resources. However, the reliable assessment of plant water status has not been adequately demonstrated, and unmanned aerial systems (UAS) offer great potential for spatiotemporal improvements. This study utilized UAS...

Continuous cultivation of staple crops to feed a growing population in the semi-deciduous agro-ecological zone of eastern Ghana (SDAG) has led to degraded soils and decreased crop yields. Biochar constitutes a potential remedy as it is often reported to improve soil health and increase crop yield of infertile soils. We thus conducted an experiment...

Water-saving technologies have long been seen as an effective method to reduce irrigation water use and alleviate regional water shortage. However, growing reports of more severe water shortage and increasing application of water-saving technologies across the world have necessitated reassessment of agricultural water-saving. This study develops a...

Remote sensing can be used for precision nutrient management to assess plant nitrogen (N) status in a spatially detailed and real-time manner. Despite recent advances in satellite-and drone technology and machine learning, neither differences between platforms nor methodological aspects for estimating plant N status have been sufficiently investiga...

Modulation of stomatal morphology and behavior is associated with changes in water use of the plant due to varied input of water, yet the underlying mechanism of such association remains largely elusive. We investigated the effects of reduced irrigation on leaf gas exchange and stomatal morphology of tobacco (Nicotiana tabacum L.) plants grown in a...

Intercepted photosynthetically active radiation (Ipar, MJ m-2 d-1) is a key biophysical variable governing plant photosynthetic rate and net primary productivity (NPP, g m-2 d-1). Under optimal growth conditions, Ipar scales proportionally to NPP by a factor termed 'optimum radiation use efficiency' (RUE opt). The Carnegie-Ames-Stanford approach (C...

Irrigation schedule is essential for improving crop production and allocating water resources in agricultural regions that heavily rely on irrigation. This study designs a framework based on the AquaCrop model to optimize the irrigation schedule of winter wheat under dry, normal and wet hydrologic scenarios over a large region in China. The model p...

Modelling N transformations within cropping systems is crucial for N management optimization in order to increase N use efficiency and reduce N losses. Such modelling remains challenging because of the complexity of N cycling in soil-plant systems. In the current study, the uncertainties of six widely used process-based models (PBMs), including APS...

An improved understanding of the productivity and water use efficiency (WUE) of global croplands is essential for coping with the growing demand for food and water. At present, the spatiotemporal distribution and trends of WUE and the associated gross primary production (GPP) and evapotranspiration (ET) for croplands remain poorly quantified at the...

Soil contamination by heavy metals is common in floodplains throughout the world. Apart from other assessment techniques available, hyperspectral remote sensing is widely used as it offers a lucrative and fast assessment. The current work explores the possibility of on-field and laboratory spectroradiometry investigations together with geochemical...

In this research, sterile soil columns with different contents of biochar made from apple-tree residues (0, 1 and 5% w/w) at three levels of water filled pore space (40, 60, and 80%) were set up in the laboratory to study nitrous oxide diffusion and binding processes. The results indicated that nitrous oxide emission can be effectively mitigated at...

The research focus on detection of drought stress in winter wheat using the unmanned aerial vehicle (UAV) thermal imagery on a field scale. The experiment was performed in 30 m x 30 m plots on coarse sandy soil (Danish soil classification, JB 1) in central Jutland, Denmark. A total of 24 experimental plots with three different irrigation regimes we...

Aipar showed the same pattern for the three methods but with different spatial resolution Biomass growth showed significant correlation to Aipar. The relationship was influenced by year probably due to differences in weather.

Leaf area index (LAI; ratio between sum of foliar area and soil surface) is key variable to characterize plants canopies as it is related to light and energy capture. LAI estimated from UAV (MicaSense RedEdge Camera) and Sentinel-2 data had significant but weak relation with field measured LAI. Work goes on to improve LAI calculation and apply the...

Technological advances in hyperspectral remote sensing have been widely applied in heavy metal soil contamination studies, as they are able to provide assessments in a rapid and cost-effective way. The present work investigates the potential role of combining field and laboratory spectroradiometry with geochemical data of lead (Pb), zinc (Zn), copp...

Plant growth promoting rhizobacteria (PGPR) play an important role in improving crop growth but have not been studied sufficiently. A wire house experiment was conducted in Pakistan to determine the combined effect of inoculating wheat seeds with PGPR on the subsequent growth and yield of the wheat. The experiment included four treatments: T0 – no-...

This chapter provides information pertaining to LULC mapping from a view of hyperspectral remote sensing across scales. First, current advancements in spaceborne hyperspectral LULC studies and methods are presented, emphasizing the classification algorithms and associated factors. In this context, case studies with critical reviews are also include...

Supporting information

Future biorefineries will prefer crops with high biomass yields, thus may precipitate fundamental changes to the agricultural landscape and the biomass production systems. Understanding the fate of nitrogen (N) in novel agricultural land uses is vital for product optimisation and environmental protection. This work reports and investigates the firs...

Evaporation from land surfaces is a critical component of the Earth water cycle and of water management strategies. The complementary method originally proposed by Bouchet, which describes a linear relation between actual evaporation (E), potential evaporation (Epo) and apparent potential evaporation (Epa) based on routinely measured weather data,...

Crop coefficient (Kc) is a very useful and widely used variable in evapotranspiration estimation in cropland. Traditional methods in calculating Kc are based on field water balance, which is limited by long measurement interval and small study area. In addition, there is the need for Kc under new agronomy practice such as plastic mulching and drip...

Subsoil denitrification is an important mechanism to reduce nitrate leaching into groundwater. However, regulating mechanisms of soil denitrification, especially those in the subsoil beneath the crop root zone, have not been well documented. In the current study, soil columns of 0-12 m depth were collected from intensive farming fields in the North...

In order to supply future biorefineries there is a need to sustainably intensify the biomass production on current agricultural land. The aim of this work was to determine biomass yield and associated radiation utilisation for novel perennial grasses and annual crops in rotations optimised for biomass production, and compare their performance with...

Remote sensing of land covers utilizes an increasing number of methods for spectral reflectance processing and its accompanying statistics to discriminate between the covers’ spectral signatures at various scales. To this end, the present chapter deals with the field-scale sensitivity of the vegetation spectral discrimination to the most common typ...

The sustainability of growing a maize—winter wheat double crop rotation in the North China Plain (NCP) has been questioned due to its high nitrogen (N) fertiliser use and low N use efficiency. This paper presents field data and evaluation and application of the soil–vegetation–atmosphere transfer model Daisy for estimating crop production and nitra...

Understanding the effects of stand age and forest type on soil respiration is crucial for predicting the potential of soil carbon sequestration. Thus far, however, there is no consensus regarding the variations in soil respiration caused by stand age and forest type. This study investigated soil respiration and its temperature sensitivity at three...

An integrated modelling strategy was designed and applied to the Soil-Vegetation-Atmosphere Transfer model Daisy for simulation of crop production and nitrate leaching under pedo-climatic and agronomic environment different than that of model original parameterisation. The points of significance and caution in the strategy are: i) Model preparation...

Aim To study maize (Zea mays L.) growth and soil nitrogen (N) dynamics in monocrop and intercropped systems in a North European climate and soil conditions with the support of a simulation model. Methods Field data for 3 years at two sites/soil types in Denmark and three main factors: (i) cropping history (maize or grass-clover), (ii) maize monocro...

Perceptions of a warming climate and recent experience of warmer weather has increased the agronomic interest for maize in North Europe. Experiences from warm regions can help to better understand the dynamics of maize growth in cool/temperate regions. Crop models are especially useful for that purpose because they provide an explicit illustration...

In Denmark silage maize substitutes the labor-intensive forage crops such as grass and grass-clover. The period after harvest is often with bare soil and coincides with high drainflow season, increasing the amount of nitrogen (N) leaching. Catch crop extends the growth season to avoid bare soil during autumn and winter, thus to minimize N leaching....

This chapter discusses the contribution of field spectroradiometry and hyperspectral remote sensing in extracting information related to land cover mapping. It provides an overview on the use of field spectroradiometry in examining the spectral discrimination between different land cover targets. An overview on the main statistical approaches emplo...

Mapping the spatial distribution of Mediterranean vegetation is crucial for understanding current ecosystem equilibrium and combating present phenomena, such as desertification and wildfires. Conclusive evidence on the spectral discrimination of such plants is thus necessary. To this end, this study focuses on the discrimination among three trees a...