Filtering methods based on morphological operations have been developed in some previous studies. The biggest challenge for these methods is how to keep the terrain features unchanged while using large window sizes for the morphological opening. Zhang et al. (2003) tried to achieve this goal, but their method required the assumption that the slope is constant. This paper presents a new method t...

In this paper, we evaluate the capability of the high spatial resolution airborne Digital Airborne Imaging System (DAIS) imagery for detailed vegetation classification at the alliance level with the aid of ancillary topographic data. Image objects as minimum classification units were generated through the Fractal Net Evolution Approach (FNEA) segmentation using eCognition software. For each obj...

et al. (1991), and has since been utilized by several researchers (Tarara and Ham, 1997; Ren et al., 1999; The dual-probe heat-pulse (DPHP) technique is emerging as a Song et al., 1999; Campbell et al., 2002). These studies useful technique for measuring soil volumetric water content ( ). have shown that the DPHP technique can provide accuHowever, few published data are available regarding the ...

This study proposes a new metric called canopy geometric volume G, which is derived from small-footprint lidar data, for estimating individual-tree basal area and stem volume. Based on the plant allometry relationship, we found that basal area B is exponentially related to G (B 1G, where 1 is a constant) and stem volume V is proportional to G (V 2G, where 2 is a constant). The models based on t...

through the food chain via uptake from contaminated soils may adversely affect human health (Arnt et al., Background As concentrations in soils are important for defining 1997). While the regulations governing As contaminawhether a soil is polluted. Arsenic concentrations in 441 taxonomically tion in waters are well defined, the regulatory cleanup and geographically representative surface soils...

Taxonomic and geographic distributions of background P concentration in soils are important when Taxonomic and geographic distributions of background P concendeciding whether a site is influenced by anthropogenic trations are important in assessing whether a soil P level is influenced by anthropogenic activities. This study was conducted to establish an input of P. Knowledge of background conce...

Schistosomiasis is a water-borne parasitic disease endemic in tropical and subtropical areas. Its transmission depends upon the presence of snails, which serve as intermediate hosts for the parasite. Some efforts have been made to classify snail habitats with remotely sensed data, but not to estimate snail abundance that is an important parameter in schistosomiasis transmission modeling. In thi...

Ecological agriculture (eco-agriculture) is an approach to agriculture that seeks a balance between ecological and economic benefits to promote the sustainable development of both. This paper proposes a scientific method for analyzing the environmental and economic effects of eco-agriculture and simulating their long-term trend. Here, we focus on the eco-agriculture system of Kongtong District,...

Time-series terrestrial parameters derived from NOAA/AVHRR, SPOT/VEGETATION, TERRA, or AQUA/MODIS data, such as Normalized Difference Vegetation Index (NDVI), Leaf Index Area (LAI), and Albedo, have been extensively applied to global climate change. However, the noise impedes these data from being further analyzed and used. In this paper, a wavelet-based method is used to remove the contaminate...

The use of fluorescent protein fusions has revolutionized cell biology by allowing exploration of proteins in their native context. However, the utilization of current techniques is limited by the size and placement of the fused fluorescent protein. This is especially true for proteins that oligomerize or assemble into large complexes in which the fluorescent protein fusion can lead to improper...