Spatial analysis in earth sciences is often based on the concept of spatial autocorrelation, expressed by W. Tobler as first law geography: “everything related to everything else, but near things are more than distant things." Here, we show that subsurface soil properties permafrost tundra terrain exhibit tremendous variability. We describe variability organic carbon (SOC) and ground ice conten...

Climbing dunes are typical aeolian landforms. The study of their formation and development mechanisms is necessary for the prevention control dune migration. gradient shape important geomorphic factors affecting climbing dunes, but influencing mechanism not clear at present. In this work, wind speed sand deposition on a sloping surface were monitored constant 8 m s−1 in wind-tunnel experiments,...

In much of the world, large scale soil maps which would better inform land use decisions are not available. The major impediment to collection of large scale data is the cost of field survey over large areas. One promising approach to increase the efficiency of soil survey is soil-landscape modelling. Soil-landscape models formalise relationships between soil attributes and other environmental ...

The world’s arid lands are some of the most beautiful landscapes on Earth, and their paucity of vegetation often makes it possible to see landforms and structures with great clarity (Figure 1.1). In addition, they have many characteristics both in terms of landforms and geomorphological processes that render them different from other major environments (see, for example, Laity, 2008; Parsons an...

knowledge about spatial soil variation in terms of measured pedodiversity offers the possibility to estimate the quality and variance within a soil map. diversity indices and abundance distribution models are statistical tools which ecologists have applied for decades for analyzing the intrinsic regularities of various ecological entities. in this study relationships between soils evolution, la...

Regional data needed for effective stream restoration include hydraulic geometry relationships (i.e., regional curves) and reference channel morphology parameters. Increasingly ecological conditions are being considered when designing, implementing, and assessing restoration efforts. We provide morphology relationships and associated ecological endpoint curves for reference streams in the Alaba...

GEOMORPHIC AND AQUATIC CONDITIONS INFLUENCING SALMONIDS AND STREAM CLASSIFICATION with application to ecosystem classification

The shoulder line is fundamental to geomorphic evolution and erosion monitoring research on the Loess Plateau, which represents boundary between positive terrain (intergully) negative (inner gully). existing extraction methods mainly suffer problems of unclear geological significance, poor landform application, low efficiency algorithms. This paper proposes a new loess automatic method, in topo...