scholarly journals Classification of Natural Forest Types for Forest Resource Monitorin Survey Data(FORCOM 2011)

2013 ◽  
Vol 18 (2) ◽  
pp. 111-116
Author(s):  
Fumiaki Kitahara ◽  
Yasushi Mitsuda ◽  
Akio Inoue ◽  
Tsuyoshi Kajisa
1972 ◽  
Vol 30 ◽  
Author(s):  
M. Van Miegroet

The  following forest types are used as basic units for classification:    1. The natural forest    2. The semi-natural forest    3. The intermediary forest    4. The artificial forest    5. The naturalized forest    6. The marginal forest forms    The proposed classification of forests tries to establish a systematic  order, based partly on morphological aspects of the forest stand, but  principally on the degree and the characteristics of human interference as  expressed by use, treatment and the aims of management. Its application  belongs essentially to the domain of forest policy. The number of types it  covers is not to be considered limitative: practical use of the  classification will give the opportunity to find out its weaker points and  eventually lead to necessary modifications.     It can be used simultaneously with other classifications based on  floristic, ecological, phytosoeiological and phytogeographical  characteristics. Neither is it intended as a substitute for usual stand  description, needed for planning management and silvicultural treatment,  because it does not take into consideration the particularities of the local  situation.


Author(s):  
Heru Noviar ◽  
Tatik Kartika

Forests have important roles in terms of carbon storage and other values. Various studies have been conducted to identify and distinguish the forest from non-forest classes. Several forest types classes such as secondary forests and plantations should be distinguished related to the restoration and rehabilitation program for dealing with climate change. The study was carried out to distinguish several classes of important forests such as the primary dryland forests, secondary dryland forest, and plantation forests using Landsat 8 to develop identification techniques of specific forests classes. The study areas selected were forest areas in three districts, namely Karo, Dairi, and Samosir of North Sumatera Province. The results showed that using composite RGB 654 of Landsat 8 imagery based on test results OIF for the forest classification, the forests could be distinguished with other land covers. Digital classification can be combined with the visual classification known as a hybrid classification method, especially if there are difficulties in border demarcation between the two types of forest classes or two classes of land covers.


2020 ◽  
Vol 463 ◽  
pp. 118016 ◽  
Author(s):  
Janine Oettel ◽  
Katharina Lapin ◽  
Georg Kindermann ◽  
Herfried Steiner ◽  
Karl-Manfred Schweinzer ◽  
...  

2017 ◽  
Vol 76 (s1) ◽  
Author(s):  
Rossano Bolpagni ◽  
Mariano Bresciani ◽  
Stefano Fenoglio

This special issue stems from an increasing awareness on the key contribution made by biometrics and biological indices in the quality classification of aquatic ecosystems. This theme has been the subject of passionate debate during the 13th European Ecological Federation (EEF) and 25th Italian Society of Ecology’s (S.It.E.) joined congresses held in Rome in September 2015. In this frame, on the margins of the special symposium named “Biomonitoring: Lessons from the past, challenges for the future”, it was launched the idea of a special issue of the Journal of Limnology on the “aquatic” contributions presented at the conference. The present volume mainly reports these studies, enriched by few invited papers. Among the other things, the main message is the need of a better integration between sector knowledges and legislative instruments. This is even truer given the on-going climate change, and the necessity to record rapid changes in ecosystems and to elaborate effective/adaptive responses to them. 


2020 ◽  
Vol 12 (12) ◽  
pp. 2049
Author(s):  
Joongbin Lim ◽  
Kyoung-Min Kim ◽  
Eun-Hee Kim ◽  
Ri Jin

The most recent forest-type map of the Korean Peninsula was produced in 1910. That of South Korea alone was produced since 1972; however, the forest type information of North Korea, which is an inaccessible region, is not known due to the separation after the Korean War. In this study, we developed a model to classify the five dominant tree species in North Korea (Korean red pine, Korean pine, Japanese larch, needle fir, and Oak) using satellite data and machine-learning techniques. The model was applied to the Gwangneung Forest area in South Korea; the Mt. Baekdu area of China, which borders North Korea; and to Goseong-gun, at the border of South Korea and North Korea, to evaluate the model’s applicability to North Korea. Eighty-three percent accuracy was achieved in the classification of the Gwangneung Forest area. In classifying forest types in the Mt. Baekdu area and Goseong-gun, even higher accuracies of 91% and 90% were achieved, respectively. These results confirm the model’s regional applicability. To expand the model for application to North Korea, a new model was developed by integrating training data from the three study areas. The integrated model’s classification of forest types in Goseong-gun (South Korea) was relatively accurate (80%); thus, the model was utilized to produce a map of the predicted dominant tree species in Goseong-gun (North Korea).


2019 ◽  
Vol 8 (2) ◽  
pp. 95-98
Author(s):  
Jung Cheol Shin ◽  
Futao Huang

Abstract This introductory paper explains the background of the special issue Doctoral Education and Beyond and provides overviews of the selected eight articles. Six of the eight articles address policy-related topics such as career choice, international mobility, and time-to-degree, and two articles explore theory related topics, especially socialization theory for doctoral students. These articles are based on empirically collected data. Five articles are based on the GRN survey, and three articles are based on national survey data and international survey data collected by each research team. Although some findings in these articles resemble those from studies conducted in the West, mostly in the US, but similar findings do not necessarily mean doctoral students in East Asia have similar learning experiences to their colleagues in the West.


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