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Taking IGBP/GCTE terrestrial transects (NETC and CST) as study areas, the present work extracted NDVI of terrestrial eco-regions in the transects using the MODIS/16-day NDVI from 2004.04 to 2010.08, to investigate the phonological responding of different ecosystems to global changing in Northeast Asia through monitoring the pheological trends such as Onp, EndP, DurP, MaxP, MaxV and RanV from actual...
The objective of this research is to explore the spatial correlation between impervious surface, green space and urban heat island based on a case study of Nanjing, China. The Landsat TM image was used to retrieve land surface temperature. According to the impervious surface area (ISA) and the fractional vegetation cover (Fr) having an inversely relation in urban built-up areas, the spatial pattern...
A decision tree is an analysis skill and a classification algorithm, whose basic principle is the combination of probability theory and an analysis tool of tree shapes. It derives a hierarchy of partition rules with respect to a target attribute of a large dataset. Nowadays, concrete coordinates exist in lots of datasets, which leads to the spatial distribution of datasets. However, conventional decision...
Supported by coordinate multiple view (CMV) environment, triple-space is discussed in our previous paper [1]. In this paper, using eye movement technique, an evaluation work is discussed to understand whether the concept of triple space can help user to find their work space, and guide the users to find the answer easily and efficiently.
Green coverage is an important indicator of health status of rangeland, and it's meaningful to improve the efficiency, accuracy and objectivity of green coverage measurement. Digital image analysis (DIA) technique becomes more attractive; however, there have been few advances in automatic measurement methods. In this paper, we automate rangeland green coverage measure by DIA, which is a novel threshold...
Vegetation plays an important part in the carbon, water, and energy exchange at the land surface. Vegetation cover fraction is one of the most important variables in land surface modeling. HJ-1 satellites (Environment and Disaster monitoring and forecasting Satellite constellation) are advanced in revisit frequency and image coverage. It improves the abilities in monitoring vegetation dynamics from...
Since the beginning of 1998, China has begun its gradual and but incremental implementation of housing reform nationwide. Over the last decade, residential housing is leading the growth and expansion of China's real estate market. There is a need to understand how housing prices are spatially structured and differentiated in metropolitan areas in order to provide relevant information for policy makers...
Green spaces, an important component of ecosystems, not only provide many environmental and social services that contribute to the quality of life, but also are the important carriers for biodiversity conservation. Rapid urbanization has led to fragmentation of green space, and it is a great threat for biodiversity conservation. One of the key tasks for planners is to optimize the benefits of green...
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