Results 61 to 70 of about 82,682 (308)
Agriculture, 2023 The aging of the agricultural labor force is an irreversible trend that has become an important issue in China’s economic transformation. Previous studies on the effects of an aging population in developing countries on agriculture mainly focused on food
Pingping Fang +3 more
doaj +1 more source
Remote Sensing, 2019 In this paper, a method for extracting Fenglin and Fengcong landform units based on karst topographic feature points is proposed. First, the variable analysis window method is used to extract peaks, nadirs, and saddle points in the karst area based on ...
Xian-wu Yang +3 more
semanticscholar +1 more source
Energy Science &Engineering, EarlyView.This study reveals the temporal and spatial evolution law of roof separation under the karst aquifer and the dynamic water inrush mechanism of roof separation. The FAHP–EWM–CRITIC combination weighting method was established to obtain the risk zoning of bed separation water inrush in a karst landform mining area. ABSTRACT Coalfields in northern Guizhou
Xilong Zhu +5 more
wiley +1 more source
Vulnerability Analysis due to Dust Phenomenon in Kerman Province
جغرافیا و پایداری محیطMany arid and semi-arid regions are also exposed to the risk of dust storms due to their fragile environmental stability. This environmental hazard has caused displacement of surface soil, damage to agricultural lands and vegetation and has affected the ...
Ali Ahmadabadi; ّFateme Emadoddin; Sarah kiani
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Geomorphology of glaciated gorges in a granitic massif (Gredos range, central Spain)
Journal of Maps, 2018 A detailed geomorphological map on a 1:10,000 scale is presented for a high mountain area in Gredos range (Iberian Central System). Only few detailed geomorphological maps of the range are available despite the wide diversity of landforms.
Néstor Campos +2 more
doaj +1 more source
RUDN Journal of Ecology and Life Safety, 2020 The article gives a brief description of the Voronezh region, provides data on the cause of landslides in its territory. The cyclical nature of landslide processes is noted, which in the region is on average 6-8 years.
Andrey N. Timofeev
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A comparative Digital Soil Mapping (DSM) study using a non-supervised clustering analysis and an expert knowledge based model - A case study from Ahuachapán, El Salvador [PDF]
, 2020 DSM is the inference of spatial and temporal soil property variations using mathematical models based on quantitative relationships between environmental information and soil measurements.
Casares, Francisco +5 more
core +1 more source
Food Chemistry International, EarlyView.ABSTRACT In this study, honey produced from Apocynum venetum L. was collected from BC (Bachu County), SY (Shaya County), and YL (Yuli County) in Xinjiang. The basic physical and chemical properties of the honey, and the contents of total phenols, total flavonoids, and amino acids were analyzed, and 16 types of polyphenols were quantified using triple ...
Na Zhang +5 more
wiley +1 more source
Journal of Quaternary Science, EarlyView.Abstract We document the early decay of the Late‐Pleistocene Cordilleran Ice Sheet in the central portion of the Rocky and Cariboo Mountains and the Rocky Mountain Trench in east‐central British Columbia. Glacial lakes impounded at the eastern margin of the ice sheet occupied watersheds on the west flank of the central Rocky Mountains, leaving ...
Brendan G. N. Miller +2 more
wiley +1 more source
Assessment of Geo –Morpho- Tourism Landform Capabilities with Prolong MethodCase Study: Zanjan Province [PDF]
جغرافیا و آمایش شهری منطقهای, 2016 A kind of industrial tourism is profitable and appropriate from economical view that has a special position and role in the development of gepgraphical areas and by creatin of the cultural and social interactions and exchanges among different nations ...
Dr. Vakil. Heidari Sarban +2 more
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