We examine the distribution of Dracaena cinnabari, Socotran Dragon’s Blood Tree, an endangered species endemic to island Socotra (Yemen)—and we propose accessibility approach its conservation, taking proximity local communities and land users into account. Using present occurrence D. applied a machine learning algorithm (random forest classifier) estimate potential across (overall validation ac...

this study aims at comparing the performance of logistic regression, maximum entropy, and multilayer perceptron techniques in preparing the predictive habitat distribution map of amygdalus scoparia in rangelands of qom province. for this purpose, vegetation sampling was done using random systematic methods after identifying pure habitats of this species. for soil sampling, eight profiles were e...

Riverine ecosystems are linked to their watersheds, and both land use and physiographic environmental conditions influence nutrient dynamics and water quality. We assessed aquatic nutrients and their relationship with land use and physiographic conditions at multiple spatial scales in the Brazos River watershed (Texas, USA) to examine the interactions between land use and physiography and their...

In solving the engineering problems in practice of different specialties, design roads and roads, structures, determining physiographic conditions same regional areas: basin area (F), height (Z), average square difference (s), slope (J), parameters such as length main channel (L), width maximum water flow (V) its depth (h), that is determination calculated values morphological indicators, perfo...

The US Forest Service adopted the National Hierarchical Framework of Ecological Units in 1993 with the ecological landtype (ELT) and ecological landtype phase (ELTP) forming the lowest levels of the hierarchy. This study examines the potential of computer mapping ELTPs for the Hoosier National Forest (HNF) located in southern Indiana. ELTPs were sampled in 2001–2003 within four units of the HNF...

an approach to agricultural management is to select and to identify susceptible regions for sowing according to the climatologic and physiographic condition of the land. knowing this enables the farmers to farm in line with the physical and climatologic conditions of the land and to decrease the crop injuries due to the undesirable climatologic conditions. there fore, this approach can be an ef...