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1. Use of RGB images from unmanned aerial vehicle to estimate lettuce growth in root-knot nematode infested soil

Author:
Vytória Piscitelli Cavalcanti; Adão Felipe dos Santos; Filipe Almendagna Rodrigues; Willian César Terra; Ronilson Carlos Araújo; Clerio Rodrigues Ribeiro; Vicente Paulo Campos; Everlon Cid Rigobelo; Flávio Henrique Vasconcelos Medeiros; Joyce Dória
Source:
Smart agricultural technology 2023 v.3 pp. 100100
ISSN:
2772-3755
Subject:
vegetation cover,   etc   ; Lactuca sativa; decision making; flight; horticulture; lettuce; plant growth; root-knot nematodes; soil; unmanned aerial vehicles;     Show all 10 Subjects
Abstract:
... Lettuce (Lactuca sativa) is an important horticultural commodity all over the world, and its growth can be affected by root-knot nematodes (Meloidogyne spp.). To keep track of plant behaviors, growers are using new technologies. In this paper, aerial images were obtained using a low-cost unmanned aerial vehicle (UAV) to gather crop information in a short time giving acceptable accuracy for decisio ...
DOI:
10.1016/j.atech.2022.100100

2. Forest Soils: Functions, Threats, Management

Author:
Klaus von Wilpert
Source:
Soil systems 2022 v.6 no.3 pp. -
ISSN:
2571-8789
Subject:
vegetation cover,   etc   ; forests; soil;     Show all 3 Subjects
Abstract:
... The specific characteristic of forest soils is their long-term development under a more-or-less continuous vegetation cover [...] ...
DOI:
10.3390/soilsystems6030060

3. Can Managed Realignment Buffer Extreme Surges? The Relationship Between Marsh Width, Vegetation Cover and Surge Attenuation

Author:
Joshua Kiesel; Leigh R. MacPherson; Mark Schuerch; Athanasios T. Vafeidis
Source:
Estuaries and coasts 2022 v.45 no.2 pp. 345-362
ISSN:
1559-2723
Subject:
vegetation cover,   etc   ; coasts; hydrologic models; sea level;     Show all 4 Subjects
Abstract:
... Managed realignment (MR) involves the landward relocation of sea defences to foster the (re)creation of coastal wetlands and achieve nature-based coastal protection. The wider application of MR is impeded by knowledge gaps related to lacking data on its effectiveness under extreme surges and the role of changes in vegetation cover, for example due to sea-level rise. We employ a calibrated and vali ...
DOI:
10.1007/s12237-021-00984-5

4. First insight into the macroplastic storage in a mountain river: The role of in-river vegetation cover, wood jams and channel morphology

Author:
Maciej Liro; Paweł Mikuś; Bartłomiej Wyżga
Source:
Science of the total environment 2022 v.838 pp. 156354
ISSN:
0048-9697
Subject:
vegetation cover,   etc   ; environment; hydrodynamics; river flow; rivers;     Show all 5 Subjects
Abstract:
... Macroplastic storage in mountain rivers remains unexplored and it is unknown how river morphology and different surface types of river areas modulate this process. Therefore, we sampled macroplastic debris stored on the surface of emergent river areas with different vegetation cover and on wood jams in a channelized, single-thread reach and an unmanaged, multi-thread reach of the Dunajec River in ...
DOI:
10.1016/j.scitotenv.2022.156354

5. Identifying management‐driven dynamics in vegetation cover: Applying the Compere framework to Cooper Creek, Australia

Author:
Randall J. Donohue; Karel Mokany; Tim R. McVicar; Anthony P. O'Grady
Source:
Ecosphere 2022 v.13 no.3 pp. e4006
ISSN:
2150-8925
Subject:
vegetation cover,   etc   ; ecosystems; landscapes; streams; temporal variation; Australia;     Show all 6 Subjects
Abstract:
... The observed spatial and temporal dynamics in landscape and ecosystem resources are the net effects of natural processes and management activities. Monitoring the impact that humans have on these resources requires that these two sources of variability be partitioned, removing the natural variability to reveal variability due to management activities. Here, we present Compere, a relative benchmark ...
DOI:
10.1002/ecs2.4006

6. Novel vegetation indices for estimating photosynthetic and non-photosynthetic fractional vegetation cover from Sentinel data

Author:
Jiali Liu; Jianrong Fan; Chao Yang; Fubao Xu; Xiyu Zhang
Source:
International journal of applied earth observation and geoinformation 2022 v.109 pp. 102793
ISSN:
1569-8432
Subject:
fractional vegetation cover,   etc   ; biomass; photosynthesis; satellites; spatial data;     Show all 5 Subjects
Abstract:
... The empirical retrieval method based on vegetation indices (VIs) has been extensively utilized to estimate the photosynthetic vegetation fractional cover (FPV) and non-photosynthetic vegetation fractional cover (FNPV). These indices, however, saturate in high biomass environments and are easily influenced by external factors. Three red edge (RE) bands (i.e., RE1, RE2, RE3) are available on the Sen ...
DOI:
10.1016/j.jag.2022.102793

7. Regolith mapping and geochemistry of hydrothermally altered, weathered and clay minerals, Western Jahajpur belt, Bhilwara, India

Author:
Mahesh Kumar Tripathi; H. Govil
Source:
Geocarto international 2022 v.37 no.3 pp. 879-895
ISSN:
1752-0762
Subject:
vegetation cover,   etc   ; alluvium; clay; color; cropland; geochemistry; regolith; India;     Show all 8 Subjects
Abstract:
... Mapping of regolith is significant to identify and discriminate geomorphic expression, regolith evolution, weathering histories and assistance in clarification of relationships between parent and surface materials. In this research work, the hydrothermally altered regolith of Western Jahajpur Belt, Bhilwara, India is studied using ASTER and AVIRIS imageries by PCA, decorrelation stretching supervi ...
DOI:
10.1080/10106049.2020.1745302

8. Study on the Impact of Spatial Resolution on Fractional Vegetation Cover Extraction with Single-Scene and Time-Series Remote Sensing Data

Author:
Yanfang Wang; Lu Tan; Guangyu Wang; Xinyu Sun; Yannan Xu
Source:
Remote Sensing 2022 v.14 no.17 pp. -
ISSN:
2072-4292
Subject:
fractional vegetation cover,   etc   ; Landsat; time series analysis; woodlands; China;     Show all 5 Subjects
Abstract:
... The spatial resolution of remote sensing images directly affects the accuracy, efficiency, and computational cost of extracting the fractional vegetation cover (FVC). Taking the Liyang woodland region, Jiangsu Province, as the study area, FVCs with varying spatial resolutions were extracted separately from Sentinel-2, Landsat-8, MOD13Q1, and MOD13A1. The variations in FVCs extracted from remote se ...
DOI:
10.3390/rs14174165

9. The need to understand the stability of arctic vegetation during rapid climate change: An assessment of imbalance in the literature

Author:
Terry V. Callaghan; Roberto Cazzolla Gatti; Gareth Phoenix
Source:
Ambio 2022 v.51 no.4 pp. 1034-1044
ISSN:
0044-7447
Subject:
vegetation cover,   etc   ; biomass; climate; ecological balance; satellites; Arctic region;     Show all 6 Subjects
Abstract:
... In early studies, northern vegetation response to global warming recognised both increases in biomass/cover and shrinking of species’ distributional ranges. Subsequent field measurements focussed on vegetation cover and biomass increases (“greening”), and more recently decreases (“browning”). However, satellite observations show that more than 50% of arctic vegetation has not changed significantly ...
DOI:
10.1007/s13280-021-01607-w

10. The Impact of NPV on the Spectral Parameters in the Yellow-Edge, Red-Edge and NIR Shoulder Wavelength Regions in Grasslands

Author:
Dandan Xu; Yanqing Liu; Weixin Xu; Xulin Guo
Source:
Remote Sensing 2022 v.14 no.13 pp. -
ISSN:
2072-4292
Subject:
vegetation cover,   etc   ; leaf area index; regression analysis; soil; wavelengths;     Show all 5 Subjects
Abstract:
... Even though research has shown that the spectral parameters of yellow-edge, red-edge and NIR (near-infrared) shoulder wavelength regions are able to estimate green cover and leaf area index (LAI), a large amount of dead materials in grasslands challenges the accuracy of their estimation using hyperspectral remote sensing. However, the exact impact of dead vegetation cover on these spectral paramet ...
DOI:
10.3390/rs14133031

11. Leishmaniasis tegumentaria y flebótomos en la localidad de Colonia Santa Rosa del norte de Argentina

Author:
Lorena V. Aramayo; Griselda N. Copa; Carlos L. Hoyos; María C. Almazán; Marisa Juarez; Silvana P. Cajal; Alejandro J. Krolewiecki; Julio R. Nasser; José F. Gil
Source:
Revista argentina microbiología 2022 v.54 no.2 pp. 143-151
ISSN:
0325-7541
Subject:
vegetation cover,   etc   ; Leishmania; Phlebotominae; cutaneous leishmaniasis; temporal variation; Argentina;     Show all 6 Subjects
Abstract:
... Tegumentary leishmaniasis (TL) is caused by parasites of the genus Leishmania and transmitted by the sandfly species, insects belonging to the order Diptera, family Psychodidae. Historically, the most endemic area of TL in Argentina has been the northern region. The aim of this work was to analyze the presence and temporal variation of TL cases reported between 1985 and 2019 in Colonia Santa Rosa ...
DOI:
10.1016/j.ram.2021.06.002

12. A Multiview Semantic Vegetation Index for Robust Estimation of Urban Vegetation Cover

Author:
Asim Khan; Warda Asim; Anwaar Ulhaq; Randall W. Robinson
Source:
Remote Sensing 2022 v.14 no.1 pp. -
ISSN:
2072-4292
Subject:
vegetation cover,   etc   ; automation; biomass; color; urban forestry; vegetation index; Australia;     Show all 7 Subjects
Abstract:
... Urban vegetation growth is vital for developing sustainable and liveable cities in the contemporary era since it directly helps people’s health and well-being. Estimating vegetation cover and biomass is commonly done by calculating various vegetation indices for automated urban vegetation management and monitoring. However, most of these indices fail to capture robust estimation of vegetation cove ...
DOI:
10.3390/rs14010228

13. New records and range extension of Euphractus sexcinctus (Linnaeus, 1758) (Cingulata, Chlamyphoridae) in Rondônia state, Brazil

Author:
Raul Afonso Pommer Barbosa; Marcela Alvares Oliveira
Source:
Check list 2022 v.18 no.2 pp. 265-268
ISSN:
1809-127X
Subject:
vegetation cover,   etc   ; Cingulata; deforestation; forests; geographical distribution; road kills; Brazil;     Show all 7 Subjects
Abstract:
... We report two new records of occurrence of Six-banded Armadillo, Euphractus sexcinctus (Linnaeus, 1758), in the state of Rondônia, Brazil, based on roadkills. These new records extend the geographic distribution of this species by 70 km. The records are from the region with a high deforestation rate called the “Arc of Deforestation”, which includes the state of Rondônia. Euphractus sexcinctus was ...
DOI:
10.15560/18.2.265

14. An approach to evaluate the dominant river biogeomorphic succession phase at the reach-scale

Author:
Meiqin Han; Gary Brierley; Baotian Pan; Haopeng Geng; Yan Shi
Source:
Catena 2022 v.217 pp. 106455
ISSN:
0341-8162
Subject:
vegetation cover,   etc   ; botanical composition; catenas; landforms; models; rivers; Yellow River;     Show all 7 Subjects
Abstract:
... The Fluvial Biogeomorphic Succession phase model (FBS model) differentiates Geomorphic (G), Pioneer (P), Biogeomorphic (B) and Ecological (E) phases of hydro-geophysical-biological interactions in river systems. To date, quantitative applications of this model have been restricted to field surveys of vegetation composition analysis at the patch-scale. Here we develop a biogeomorphic landform mappi ...
DOI:
10.1016/j.catena.2022.106455

15. Extent, accuracy and repeatability of bare sand and vegetation cover in dunes mapped from aerial imagery is highly variable

Author:
Thomas A.G. Smyth; Ryan Wilson; Paul Rooney; Katherine L. Yates
Source:
Aeolian research 2022 v.56 pp. 100799
ISSN:
1875-9637
Subject:
vegetation cover,   etc   ; land classification; land cover; remote sensing; research; sand;     Show all 6 Subjects
Abstract:
... Vegetation cover on coastal sand dunes has been increasing worldwide since at least the 1940s. Analysis of aerial and satellite imagery has been the principal source used to measure this change, however no studies have systematically evaluated the accuracy of remotely sensed estimates. Using established land cover classification methods and in-situ field measurements, we show that both the extent ...
DOI:
10.1016/j.aeolia.2022.100799

16. Mosaic Pattern of Soil and Vegetation Cover Stocks in Pine Forests under Conditions of Aerotechnogenic Pollution

Author:
I. V. Lyanguzova; A. I. Belyaeva
Source:
Russian journal of ecology 2022 v.53 no.2 pp. 68-82
ISSN:
1067-4136
Subject:
vegetation cover,   etc   ; Betula; Russia; biomass; forest litter; pollution; taiga; toxicity;     Show all 8 Subjects
Abstract:
... The effect of mature pine and birch trees on the mosaic pattern of the soil and vegetation cover of northern taiga pine forests exposed to long-term atmospheric emissions from the copper-nickel plant (the town of Monchegorsk, Murmansk oblast) is considered. In the background area, the biomass stock of live ground cover increases and the mortmass stock concentrated in plant and forest litter decrea ...
DOI:
10.1134/S1067413622020060

17. Quantifying spatiotemporal dynamics of vegetation and its differentiation mechanism based on geographical detector

Author:
Guangjie Wang; Wenfu Peng
Source:
Environmental science and pollution research 2022 v.29 no.21 pp. 32016-32031
ISSN:
0944-1344
Subject:
vegetation cover,   etc   ; ecological restoration; pollution; research; rivers; soil types; temperature;     Show all 7 Subjects
Abstract:
... The influence of factors on vegetation changes in different regions is still largely unknown. We applied the geographic detector, a new spatial statistical method, to study the interactive effects of factors on the spatial patterns of normalised vegetation index (NDVI) changes and determine the optimal characteristics of key impact factors beneficial to vegetation growth. Our results show that fro ...
DOI:
10.1007/s11356-021-17544-w

18. Improving vegetation segmentation with shadow effects based on double input networks using polarization images

Author:
Lan Yang; Wei Chen; Pengshuai Bi; Hongzhao Tang; Fengjiao Zhang; Zhe Wang
Source:
Computers and electronics in agriculture 2022 v.199 pp. 107123
ISSN:
0168-1699
Subject:
fractional vegetation cover,   etc   ; agriculture; algorithms; color; electronics; light intensity; solar radiation;     Show all 7 Subjects
Abstract:
... Fractional vegetation cover (FVC) plays an important role in the study of vegetation growth state, and the key issue is accurately segmenting and extracting green vegetation from the background. However, the shadows generated by natural lights produce extreme illuminance differences in images, which greatly reduces the vegetation extraction accuracy. The polarization information for ground objects ...
DOI:
10.1016/j.compag.2022.107123

19. Legal reserves ensure alpha and beta ant diversity in highly modified agricultural landscapes

Author:
Kelley Rita Przybyszewski; Ricardo Eduardo Vicente; José Victor Alves Ferreira; Mônica Josene Barbosa Pereira; Thiago Junqueira Izzo; Danielle Storck-Tonon
Source:
Perspectives in ecology and conservation 2022 pp. -
ISSN:
2530-0644
Subject:
vegetation cover,   etc   ; agroecosystems; biodiversity; cerrado; farmers; indigenous species; landscapes; politics; soybeans;     Show all 9 Subjects
Abstract:
... To preserve biodiversity, the Brazilian law postulates that rural properties must keep a percentage of native vegetation cover, denominated as “Legal Reserve” (LR). Recent political efforts are being made to disoblige the farmer to keep the LRs. In this study we evaluated the role of LRs in ensuring the ant biodiversity on LRs and soybean plantations. Ants were collected in 42 landscapes within Am ...
DOI:
10.1016/j.pecon.2022.08.001

20. Vegetation mapping of the Dzharylhach Island (Ukraine)

Author:
Daniella Ivanova; Zoya M. Tsymbalyuk; Anastasia Davydova
Source:
Hacquetia 2022 v.21 no.1 pp. 163-172
ISSN:
1854-9829
Subject:
vegetation cover,   etc   ; Hacquetia; halophytes; hydrology; soil; vegetation maps; Black Sea; Ukraine;     Show all 8 Subjects
Abstract:
... Dzharylhach Island is the largest one in the Black Sea. It is the part of the “Dzharylhatskyi” National Nature Park, which located in the Southern Ukraine. A 1 : 10000 scale vegetation map of Dzharylhach Island has been developed. The main unit for mapping is a complex of associations. In total 28 of such complexes were identified. The map shows the territorial differentiation of vegetation. It ha ...
DOI:
10.2478/hacq-2021-0021