Results 21 to 30 of about 323,749 (316)

Precise Drought Threshold Monitoring in Winter Wheat Different Growth Periods Using a Multispectral Unmanned Aerial Vehicle

open access: yesDrones
Agricultural drought significantly affects crop growth and food production, making accurate drought thresholds essential for effective monitoring and discrimination.
Wenlong Song   +7 more
doaj   +1 more source

A hierarchically nested multi-scale modeling technique for urban pluvial floods

open access: yesShui kexue jinzhan, 2023
Aiming at the conflict between the modeling accuracy and the computation time cost faced by existing urban pluvial flood models, a hierarchically nested multi-scale model technique is proposed according to the spatial and temporal characteristics of ...
Hongping ZHANG   +5 more
doaj   +1 more source

Automatic Recognition Algorithm of Convergence Region Based on Relative Storm Radial Velocity Field

open access: yes应用气象学报, 2021
An algorithm for automatically identifying the mid-altitude radial convergence from the storm-relative radial velocity field is proposed. The algorithm first identifies the positive-negative velocity segments in each radial direction on the single ...
Zhu Li, Kang Lan
doaj   +1 more source

Variation characteristics of extreme climate events in Southwest China from 1961 to 2017

open access: yesHeliyon, 2023
Climate change is increasing the intensity of extreme climate events. Significant impacts of extreme climate events on human society and ecosystem have occurred in many places of the world, for example, Southwest China (SWC).
Chunxue Wang   +4 more
doaj   +1 more source

SPATIOTEMPORAL VARIATION OF NDVI IN THE YELLOW RIVER SOURCE REGION FROM 1998 TO 2016 [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
Quantification of vegetation change and its coupling relationship with climate change has become the central topic in current global change researches. The Normalized Difference Vegetation Index (NDVI) time series data and meteorological data from 1998 ...
J. Fu   +17 more
doaj   +1 more source

Propagation of Drought: From Meteorological Drought to Agricultural and Hydrological Drought [PDF]

open access: yesAdvances in Meteorology, 2016
1State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Nanjing 210098, China 2Department of Water Resources Management, Delft University of Technology, 2628 CN Delft, Netherlands 3National Drought Mitigation Center, University of Nebraska-Lincoln, 815 Hardin Hall, Lincoln, NE 68583-0988, USA 4Water Resources ...
Wang, Wen   +3 more
openaire   +3 more sources

Breeding drought tolerant cowpea: constraints, accomplishments, and future prospects

open access: yes, 2009
This review presents an overview of accomplishments on different aspects of cowpea breeding for drought tolerance. Furthermore it provides options to enhance the genetic potential of the crop by minimizing yield loss due to drought stress. Recent efforts
Visser, R.G.F.   +4 more
core   +1 more source

Optimizing crop management strategies for improved yield, water productivity, and sustainability of quinoa in shallow basaltic semi-arid regions

open access: yesFrontiers in Plant Science
IntroductionRecently, quinoa (Chenopodium quinoa Willd.) has gained global recognition as a nutritious, adaptable crop suitable to adverse soil and climatic conditions. However, knowledge about optimal management practices for its cultivation in marginal
Aliza Pradhan   +8 more
doaj   +1 more source

ANALYSIS OF LAND USE CHANGE IN INNER MONGOLIA REGION FROM 1978 TO 2018 BASED ON REMOTE SENSING [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
Land use change is an important theme of the research on the impact of human interaction on global change. In this paper, two phases of land use data were interpretated from remote sensing images of 1978 and 2018, and the spatial-temporal characteristics
W. Qu   +18 more
doaj   +1 more source

Sex and the drought [PDF]

open access: yesCurrent Biology, 2008
SummaryAsexual taxa, such as the bdelloid rotifers, are anticipated to help answer the question of what makes sexual reproduction so prevalent and persistent. But perhaps the secret of some asexuals' success lies in their ecological oddity. Florian Maderspacher takes a look.
openaire   +2 more sources

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