نتایج جستجو برای: barren land

تعداد نتایج: 118987  

Journal: :پژوهش های جغرافیای طبیعی 0
مژگان احمدی ندوشن علیرضا سفیانیان سیدجمال الدین خواجه الدین

land cover map is important for many urban planning and management activities. in this study, in order to produce land cover map of arak city, digital image of liss-iii scanner acquired on 16 june 2006 were employed. first of all, geometric correction with rmse 0.58 pixel was applied. considering the mountainous condition of the study area, topographic correction was applied to the image. in su...

unprincipled changes in land use are major challenges for many countries and different regions of the world, which in turn have devastating effects on natural resources, Therefore, the study of land-use changes has a fundamental and important role for environmental studies. The purpose of this study is to detect and predicting of land use/ land cover (LULC) changes in Darab plain through the Ma...

Journal: :محیط زیست طبیعی 0
مهدی شیخ گودرزی دانشجوی کارشناسی ارشد محیط زیست، دانشکده منابع طبیعی، دانشگاه تهران، ایران افشین علیزاده شعبانی استادیار محیط زیست، دانشکده منابع طبیعی، دانشگاه تهران، ایران عبدالرسول سلمان ماهینی دانشیار محیط زیست، دانشکده شیلات و محیط زیست، دانشگاه گرگان، ایران جهانگیر فقهی دانشیار جنگلداری، دانشکده منابع طبیعی، دانشگاه تهران، ایران

human activities induced changes in land cover/use have extensive impacts on the landscape. in recent years, these changes had an increasingly growth due to irrational use of the natural resources in iran. hence, considering the negative effects of the inappropriate use of land and land-use change, understanding of the landscape changes over time is necessary to planning and implementation of s...

2015
Zhu Chen Wenliang Wu Xiaoming Shao Li Li Yanbin Guo Guochun Ding Manuel Reigosa

The Grain to Green Project (GGP) is an unprecedented land restoration action in China. The project converted large areas (ca 10 million ha) of steep-sloped/degraded farmland and barren land into forest and grassland resulting in ecological benefits such as a reduction in severe soil erosion. It may also affect soil microorganisms involved in ammonia oxidization, which is a key step in the globa...

2005
N. V. Shabanov R. B. Myneni

[1] This paper presents an ARTMAP neural network approach for burn detection in Moderate Resolution Imaging Spectroradiometer (MODIS) data using two methods: discrete and continuous classifications. The study area covers the states of Idaho and Montana in the United States, where extensive fire events took place during the months of July and August in the year 2000. The proposed approach differ...

2016
Ying Chen Jinwei Dong Xiangming Xiao Min Zhang Bo Tian Yunxuan Zhou Bo Li Zhijun Ma

Tidal flats play a critical role in supporting biodiversity and in providing ecosystem services but are rapidly disappearing because of human activities. The Yangtze Estuary is one of the world's largest alluvial estuaries and is adjacent to the most developed economic zone in China. Using the Yangtze Estuary as a study region, we developed an automatic algorithm to estimate tidal flat areas ba...

2011
Daya Gupta Bidisha Das

The aim of this paper is to propose a systematic overview of membrane computing model in land cover feature extraction. Membrane computing is a new branch of natural computation which has a great deal of distribution and handles maximal parallelism. The bio-inspired technique is used for image classification and these images are remote sensing satellite image. The terrain features like water, b...

2014
Mohsen Dadras Helmi Zulhaidi Mohd Shafri Noordin Ahmad Biswajeet Pradhan Sahabeh Safarpour

The process of land use change and urban sprawl has been considered as a prominent characteristic of urban development. This study aims to investigate urban growth process in Bandar Abbas city, Iran, focusing on urban sprawl and land use change during 1956-2012. To calculate urban sprawl and land use changes, aerial photos and satellite images are utilized in different time spans. The results d...

Journal: :Water 2022

Land use land cover (LULC) has altered dramatically because of anthropogenic activities, particularly in places where climate change and population growth are severe. The geographic information system (GIS) remote sensing widely used techniques for monitoring LULC changes. This study aimed to assess the changes predict future trends Selangor, Malaysia. satellite images from 1991–2021 were class...

Journal: :Sustainability 2021

Dynamic change in vegetation is an integral component of terrestrial ecosystems, which has become a significant research area the current context global climate warming. Jilin Province northeast China ecologically fragile area, and there urgent need to understand its changes responses both climatic factors human activities. The normalized difference index (NDVI) was used analyze trends growth, ...

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