scholarly journals Remote sensing and GIS application in assessing the adaptability of some key crops in Dak Nong province

2022 ◽  
Vol 964 (1) ◽  
pp. 012003
Author(s):  
Nguyen Thi Thanh Huong ◽  
Ho Dinh Bao ◽  
Cao Thi Hoai ◽  
Phan Thi Hang ◽  
Ngo The Son ◽  
...  
Keyword(s):  
Remote Sensing ◽  
Scientific Information ◽  
Adaptation Level ◽  
Site Conditions ◽  
Crop Species ◽  
Soil Thickness ◽  
Gis Application ◽  
Rs And Gis ◽  
Natural Factors ◽  
Different Levels

Abstract Remote sensing (RS) and Geographic information system (GIS) is widely applied in the world and gradually affirms its role in Vietnam in managing agricultural and forest resources. This application is highly effective, providing information timely for managers to make decisions and build development strategies. In this study, RS and GIS were integrated to assess suitability for key crop species in Dak Nong province including coffee, rubber, cashew, and durian based on their suitability to site conditions such as soil (soil type, soil texture, soil thickness), topography (elevation, slope) and climate (temperature, precipitation). Using the restrictive method and overlapping map layers of natural factors, classified into adaptive levels according to FAO (1976). Results show that most land areas in Dak Nong province have different levels of potential suitability for key crop species ranging from non-adaptive to lesst-adaptive and moderately adaptive. However, most suitable areas for key crops are only at low (accounting for a large proportion) and the average adaptation level. The findings from the study are the scientific information for managers to make decisions regarding the structure of major crops in the province.

Study on the Wetland Change in Northeast China Based on RS and GIS Technology

2011 ◽  
Vol 356-360 ◽  
pp. 2886-2891
Author(s):  
Han Wen Cui ◽  
Qi Gang Jiang
Keyword(s):  
Remote Sensing ◽  
Current Distribution ◽  
Constructed Wetland ◽  
Human Activities ◽  
Northeast China ◽  
Transition Matrix ◽  
Gis Technology ◽  
Wetland Area ◽  
Rs And Gis ◽  
Data Source

Based on the RS and GIS technology, the remote sensing imageries MSS in 1975, ETM in 2000 and CBERS-2 in 2007 have been used as main data source in this paper. Wetland current distribution, spatiotemporal change principle and transition matrix have been analyzed in order to realize the wetland change situation in Northeast China during the 30 years. The results show that the wetland area in Northeast China, on the whole, is decreased first and then increased. The dramatic change happened in mire and constructed wetland. Mire is decreased first and then increased, but the whole is still decreased. While, constructed wetland is increased continuously. Constructed wetland increased owing to the transition from mire and non-wetland. The level of the transition from mire to constructed wetland is lower. In Northeast China, human activities have a great impact on wetland change than nature factors.

scholarly journals Monitoring Bemisia tabaci Gennadius (Hemiptera: Aleyrodidae) Infestation in Soybean Using Hyperspectral Remote Sensing

2020 ◽  
Author(s):  
Pedro P. S. Barros ◽  
Inana X. Schutze ◽  
Fernando H. Iost Filho ◽  
Pedro Takao Yamamoto ◽  
Peterson Fiorio ◽  
...  
Keyword(s):  
Remote Sensing ◽  
Bemisia Tabaci ◽  
Insect Pest ◽  
Remote Sensing Data ◽  
Management Program ◽  
Hyperspectral Remote Sensing ◽  
Negative Effects ◽  
Soybean Plants ◽  
Soybean Leaves ◽  
Different Levels

Although monitoring and observing insect pest populations in the fields is essential in crop management, it is still a laborious and sometimes ineffective process. High infestation levels may diminish the photosynthetic activity of soybean plants, affecting their development and reducing the yield. An imprecise decision making in integrated pest management program may lead to an ineffective control in infested areas or the excessive use of insecticides. In order to reach a more efficient control of arthropods population it is important to evaluate the infestation in time to mitigate its negative effects on the crop and remote sensing is an important tool for monitoring. It was proposed that infested soybean areas could be identified, and the arthropods quantified from non-infested areas in a field by hyperspectral remote sensing. Thus, the goals of this study were to investigate and discriminate the reflectance characteristics of soybean non-infested and infested with Bemisia tabaci using hyperspectral remote sensing data. Therefore, samples of infested and non-infested soybean leaves were collected and transported to the laboratory to obtain the hyperspectral curves. The results obtained allowed to discriminate the different levels of infestation and to separate healthy from whitefly infested soybean leaves based on their reflectance.

Intralinguistic analysis of medical research papers and abstracts

Terminology ◽  
2003 ◽  
Vol 9 (2) ◽  
pp. 247-268 ◽  
Author(s):  
Beatriz Méndez-Cendón ◽  
Belén López Arroyo
Keyword(s):  
Medical Research ◽  
Semantic Analysis ◽  
Scientific Information ◽  
Functional Approach ◽  
Levels Of Analysis ◽  
Research Papers ◽  
Discursive Strategies ◽  
Technical Writers ◽  
Similarities And Differences ◽  
Different Levels

Studies related to ESP genres have been carried out lately focusing on different levels of analysis, such as internal ordering, lexico-grammatical patterns or terminology. However, there are not many studies combining different levels of analysis so as to observe how information is rendered in scientific genres. The present study intends to offer a description of rhetorical and phraseological patterns observed in medical research papers and abstracts using a semantic and functional approach. Our methodology is descriptively performed on a comparable corpus composed of research papers and abstracts in the field of diagnostic imaging and published in esteemed journals. We will determine composition strategies by means of the description of the authors’ favourite structures found in our corpus. Once these favourite structures have been obtained for every genre, we will proceed with semantic analysis so as to establish their similarities and differences. Our results will, primarily, help translators, technical writers and ESP students to infer discursive strategies in these genres, as well as to better understand some of the discourse aspects of rendering scientific information in general.

Research on Quick Monitoring and Evaluating of Flood Disaster in Poyang Lake Area Based on Remote Sensing

2013 ◽  
Vol 303-306 ◽  
pp. 740-743
Author(s):  
Qun Sun
Keyword(s):  
Remote Sensing ◽  
Poyang Lake ◽  
Rapid Assessment ◽  
Economic Loss ◽  
Flood Disaster ◽  
Lake Area ◽  
Gis Technology ◽  
Remote Sensing Monitoring ◽  
Rs And Gis ◽  
Poyang Lake Area

Flood disaster happens frequently in Poyang Lake area, which causes a huge economic loss each year. In order to prevent and reduce the loss caused by flood disaster, and to promote the economic development in Poyang Lake area, the author has researched methods of quick monitoring and evaluating of flood disaster based on RS and GIS. Firstly, the author discusses the technical means of monitoring and assessment of flood disaster, which includes remote monitoring technology and GIS technology. Secondly, taking Poyang Lake area for example, the author introduces the methods and processes of remote sensing monitoring of flood disaster. Finally, various data of damage has been computed rapidly to achieve the purpose of rapid assessment of the loss by using the function of spatial analysis of GIS and withdrawing flooded areas from the remote sensing monitoring image combined with background data.

Sign in / Sign up

Export Citation Format

Share Document