Fractional Vegetation Cover (FVC) is an important parameter for soil erosion equation. The of typical county in red region South China was calculated by revision method (PRM) and fusion (FM).The results the two methods were compared from parts FVC level 24 half-months FVC. show that PRM concentrated high level, FM mainly medium-high level. time variation same, but majority value higher than FM....

Knowledge and protection of natural plant assemblages are key objectives of the California Native Plant Society (CNPS). The CNPS Vegetation Program has a floristic classification system to define and map vegetation in the state, including rare and common vegetation. Rare vegetation represents important and distinctive assemblages of biodiversity, and over 60% of the described vegetation allianc...

The goal of this study is to improve our understanding of the interactive function of impervious and vegetation covers at different levels of the local and intra-urban spatial scales in relation to air temperatures in an urban environment. A multiple regression model was developed using impervious and vegetation fractions at different scales to predict maximum air temperature for the entire Pho...

The GRASS system has been used to evaluate avalanche risk. This has been done by combining heterogeneous data. Val di Pejo, located in the north-western Trentino, an Italian alpine region which shows frequent and sometimes huge avalanche phenomena, has been selected as test area. A morphologic risk has been defined in those areas where the slope is between 28° and 55° for a minimum surface of a...

The purpose of this paper is to present two agents’ societies responsible for group formation (sub-communities) in CV-Muzar (Augusto Ruschi Zoobotanical Museum Virtual Community of the University of Passo Fundo). The first is a static society that intends to investigate the groups in the CV-Muzar. The second is a dynamical society that will analyze the existing groups and look for participants ...

As first steps towards establishing software engineering as an engineering discipline, we need to create explicit models of its building blocks, i.e., projects, processes, products, and various quality perspectives; organize these models for effective reuse across project boundaries; and establish measurable criteria for project guidance. This paper investigates the possibilities of providing m...