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Can we infer plant facilitation from remote sensing? a test across global drylands
2015
Ecological Applications
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Here we explore whether the frequency of plant spatial associations detected from high-resolution remotely sensed images can be used to infer plant facilitation at the community level in drylands around ...
They pave the road for a systematic global assessment of the role of facilitation in terrestrial ecosystems. ...
model and the remotely sensed data for the 65 drylands studied. ...
doi:10.1890/14-2358.1
pmid:26552256
pmcid:PMC4910861
fatcat:tpnd2yunhvbzvpbvwhkwmtzsjm
Dryland ecohydrology and climate change: critical issues and technical advances
2012
Hydrology and Earth System Sciences
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water budget and vegetation water use, with a focus on the use of stable isotopes and remote sensing. ...
</strong> Drylands cover about 40% of the terrestrial land surface and account for approximately 40% of global net primary productivity. ...
Lixin Wang acknowledges the financial support from Vice-Chancellor's postdoctoral research fellowship of University of New South Wales. ...
doi:10.5194/hess-16-2585-2012
fatcat:gtrs5j4sdjapbl3bd2t3ilmija
Mapping South America's Drylands through Remote Sensing—A Review of the Methodological Trends and Current Challenges
2022
Remote Sensing
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The scientific grasp of the distribution and dynamics of land use and land cover (LULC) changes in South America is still limited. ...
Still, such advancement in classification methods did not yet reflect in the upsurge of detailed mapping of dryland vegetation types and functional groups. ...
Conflicts of Interest: The authors declare no conflict of interest and the funders had no role in the design of the study; in the collection, analyses, or interpretation of data; in the writing of the ...
doi:10.3390/rs14030736
fatcat:ilz76uwsqreallzdzdbulhcrzy
Assessing landscape structure and pattern fragmentation in semiarid ecosystems using patch-size distributions
2011
Ecological Applications
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Overall, our results emphasize the complexity of structure assessment in dryland ecosystems, while recognizing the usefulness of the patch-size distribution of vegetation for monitoring semiarid ecosystems ...
Our assessment is based on the study of vegetation patterns derived from remote sensing in a series of semiarid Australian Mulga shrublands subjected to different disturbance levels. ...
the spatial organization of water-limited ecosystems (Sole 2007) . ...
doi:10.1890/10-2113.1
pmid:22073660
fatcat:osdkahewmbb3xfzqfhrmutggcq
Satellite Monitoring of Natural Reforestation Efforts in China's Drylands
2020
One Earth
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Liangyu Fu from the Asia Library at the University of Michigan for her help finding and accessing official reforestation data. ...
water from active microwave remote sensing. ...
and airplane planting, either by local communities or occasionally by the military. 39 This technique has been especially successful in wetter areas in China where ecosystems are not water limited ...
doi:10.1016/j.oneear.2019.12.015
fatcat:ta66554nkbbxrmr2kcgljw5rrm
Imaging spectroscopy for desertification studies: comparing aviris and eo-1 hyperion in argentina drylands
2003
IEEE Transactions on Geoscience and Remote Sensing
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Few multispectral remote sensing approaches have quantitatively resolved the spatial complexity of photosynthetic vegetation (PV), nonphotosynthetic vegetation (NPV), and bare soil in drylands. ...
The PV+NPV results indicated spatially discrete and widespread degradation of ecosystems that are not protected in Nacunan Reserve. ...
Tabeni for field, remote sensing, and GIS assistance. The also thank T. Brakke, R. Green, I. McCubbin, L. ...
doi:10.1109/tgrs.2003.812903
fatcat:eqc5rpymgbeqxgd7jqahgrfgae
Dynamics of Vegetation Greenness and Its Response to Climate Change in Xinjiang over the Past Two Decades
2021
Remote Sensing
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Here, we used the remote sensing datasets (MOD13A2 and TerraClimate) and data of meteorological stations to investigate the trends in the dynamic change in the Normalized Difference Vegetation Index (NDVI ...
Xinjiang, as a typical dryland in China, has received great attention lately for its unique ecological environment. ...
It is the appearance of remote sensing technology that has made up for the deficiencies of conventional monitoring methods. ...
doi:10.3390/rs13204063
fatcat:gazyxlzjgnd2hckvj4iltk3e4a
Applications of Remote Sensing to Alien Invasive Plant Studies
2009
Sensors
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We synthesize previous research efforts on remote sensing of invasive plants from spatial, temporal and spectral perspectives. ...
Remote sensing has been an important tool for large-scale ecological studies in the past three decades, but it was not commonly used to study alien invasive plants until the mid 1990s. ...
High Spatial Resolution Remote Sensing The most intuitive and straightforward remote sensing approach for alien plant detection is to use high spatial resolution images to visually inspect the spatial ...
doi:10.3390/s90604869
pmid:22408558
pmcid:PMC3291943
fatcat:cryvdls2efdtrlisotsbbbtnnu
The Assessment of Land Degradation and Desertification in Mexico: Mapping Regional Trend Indicators with Satellite Data
[chapter]
2016
Land Degradation and Desertification - a Global Crisis
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Understanding the patterns of land degradation and desertification to develop mitigation strategies requires identification of methods for accurate and spatially explicit assessment and monitoring. ...
This methodology was tested in a semi-deciduous ecosystem in the southeast of Mexico. ...
Acknowledgements Acknowledgment is extended to the Mexican Council for Science and Technology (CONA-CyT) and the National Institute of Forestry, Agriculture and Livestock Research (INIFAP) of Mexico for ...
doi:10.5772/64241
fatcat:7ps4q3n435gu5emfp5pfc4jwwe
DESERTIFICATION IN CENTRAL ARGENTINA: CHANGES IN ECOSYSTEM CARBON AND NITROGEN FROM IMAGING SPECTROSCOPY
2003
Ecological Applications
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Hotspots of grazing management (e.g., ranch centers, water sources) have undergone some woody vegetation encroachment, but the spatial patterns were localized and variable. ...
This study demonstrates a novel approach to remotely measure both surface and soil properties most indicative of progressive land degradation and desertification in dryland regions. ...
Tabeni for field, remote sensing, and GIS assistance. We thank I. McCubbin, R. Green, and the AVIRIS team for their efforts to acquire the imagery. Thanks to T. Harris, D. Peters, J. Paruelo, A. ...
doi:10.1890/1051-0761(2003)013[0629:dicaci]2.0.co;2
fatcat:22yiozv4kvbuhm2pdtxckov5ga
Discovery of fairy circles in Australia supports self-organization theory
2016
Proceedings of the National Academy of Sciences of the United States of America
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These results suggest that biomass-water feedbacks and resultant vegetation gap patterns are likely more common in remote drylands than is currently known. drylands | spatial pattern | Triodia grass | ...
Pattern-formation theory predicts that such highly ordered gap patterns should be found also in other water-limited systems across the globe, even if the mechanisms of their formation are different. ...
We thank two anonymous reviewers for their helpful comments. We are grateful to the Environmental Management of Rio Tinto for their logistic support in the region and for providing ...
doi:10.1073/pnas.1522130113
pmid:26976567
pmcid:PMC4822591
fatcat:kdbxlafnajdhflzsopvdh7njnu
Soil indicators to assess the effectiveness of restoration strategies in dryland ecosystems
2015
Solid Earth Discussions
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In this review paper, several soil indicators, which can be used to assess the effectiveness of restoration strategies in dryland ecosystems at different spatial and temporal scales, are discussed. ...
climate, and land management at different scales, which is particularly complex due to the heterogeneous pattern of ecosystems functioning in drylands, and (ii) the selection of the most suitable soil ...
COST Action ES1104 "Arid Lands Restoration and Combat of Desertification: Setting Up a Drylands and Desert Restoration Hub" is acknowledged for facilitating the establishment of the scientific network ...
doi:10.5194/sed-7-3645-2015
fatcat:xrpuv4ufxvfajefof3cifs5x7a
Patterns of plant rehydration and growth following pulses of soil moisture availability
2021
Biogeosciences
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Using satellite-based estimates of predawn plant and soil water content from the Soil Moisture Active Passive (SMAP) satellite, we quantify the timescales of plant water content increases following rainfall ...
In wetter regions, we find that plant water content increases rapidly and dries along with soil moisture, which we attribute to predawn soil–plant water potential equilibrium. ...
The authors thank Missy Holbrook, Tony Rockwell, Anju Manandhar, and Jess Gersony of the Holbrook Plant Physiology Laboratory at Harvard University for many insightful discussions. ...
doi:10.5194/bg-18-831-2021
fatcat:skq6tf74izcdje6pcudn72nskq
Variations in hydrological connectivity of Australian semiarid landscapes indicate abrupt changes in rainfall-use efficiency of vegetation
2012
Journal of Geophysical Research
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1] Dryland vegetation frequently shows self-organized spatial patterns as mosaic-like structures of sources (bare areas) and sinks (vegetation patches) of water runoff and sediments with variable interconnection ...
Disturbances can disrupt the spatial distribution of vegetation causing a substantial loss of water by increasing landscape hydrological connectivity and consequently, affecting ecosystem function (e.g ...
In fact, high resolution remote sensing allows the study of fine-scale spatial processes in these patchy landscapes . ...
doi:10.1029/2011jg001839
fatcat:7ufao7eodffrdc3jglfb4ik3em
Multiscale analysis of tree cover and aboveground carbon stocks in pinyon–juniper woodlands
2009
Ecological Applications
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Our results show how multiple remote-sensing observations can be used to map cover and C stocks at high resolution in drylands, and they highlight the role of P-J ecosystems in the North American C budget ...
The third most extensive vegetation type in the United States is pinyon-juniper (P-J) woodland, yet the spatial patterns of tree cover and aboveground biomass (AGB) of P-J systems are poorly quantified ...
ACKNOWLEDGMENTS We thank two anonymous reviewers for providing suggestions that greatly improved the manuscript. ...
doi:10.1890/07-2103.1
pmid:19425430
fatcat:4vc4bkmcordw5eowncsmqataxq
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