Ecological footprint analysis based on RS and GIS in arid land
Arid area ; China ; Concept ; Ecology ; Forecast ; Gansu ; Geographical information system ; Methodology ; Model ; Sustainable development
are introduced. On this basis, the study brings forward the method of ecological footprint and capacity prediction. Models and methods are employed to calculate EF and EC (ecological capacity) in 1995 and 2000 and predict them in 2005 in Hexi Corridor (northwest
The ecological footprint (EF) is a kind of concise method of quantifiably measuring the natural capital consumption and it can reflect the goal of sustainability. In this paper, the concept, the theory and method of ecological footprint
Land use change and its corresponding ecological responses : a review
Biodiversity ; China ; Ecology ; Impact ; Land use ; Model ; Soil properties ; Sustainable development ; Water quality
Providing a scientific understanding of the process of land use change, the impacts of different land use decisions, and the ways that decisions are affected by a changing environment and increasing ecological variability are the priority areas
for research : explanation of scale dependency of drivers of land use change; quantification of driving factors of land use change; incorporation of biophysical feedbacks in land use change models; and underlying processes and mechanisms of ecological impacts
Ecological epidemiology : the role of landscape structure in the transmission risk of the fox tapeworm Echinococcus multilocularis (Leukart 1863) (Cestoda : Cyclophyllidea : Taeniidae)
China ; Disease ; Ecology ; Epidemiology ; Habitat ; Land use ; Landscape ecology ; Life cycle ; Risk ; Spatial analysis
The larval form of the fox tapeworm, Echinococcus multilocularis, causes a fatal liver infection in human and has high prevalence in western China. This paper introduces the tapeworm and reviews the current understanding of its transmission ecology
classification and spatial analysis. The link between desease, remote sensing and landscape ecology is an expanding research area.
Attempts to combine hydrology and ecology in classifying rivers and in setting flow objectives to favour biota are reviewed, together with integrated approaches to river management that aim to promote ecological quality. A significant scale
Impacts of climate and river flooding on the hydro-ecology of a floodplain basin, Peace-Athabasca Delta, Canada since A.D. 1700
Alberta ; Canada ; Climatic variability ; Delta ; Flood ; Floodplain ; Human impact ; Hydraulic works ; Palaeo-ecology ; Palaeo-environment ; Palaeohydrology ; Quaternary
of the Peace River since 1968. The study demonstrates that profound changes in hydro-ecological conditions are clearly a natural feature of this ecosystem, independent of human influence.
A long-term landscape ecological project in Central Norway offers new material that is used to interpret the grazing impact of reindeers in comparable ecosystems. A gradient was studied from central Norway, where there is no reindeer grazing
, to western Greenland with a natural population of reindeers, and finally to northern Norway, where overgrazing already exceeds the carrying capacity. With the help of ecological mapping, especially of vegetation and soils, and measurements of environmental
processes, differences due to grazing reindeer populations in the 3 regions have been identified. The article presents the results of the investigations and discusses the ecological background for determining degradation and possible regeneration processes
China ; Ecology ; Impact ; Land use ; Model ; Northern China ; Scenario ; Simulation ; Years 1990-99
A system dynamics (SD) model with the aim to modelling scenarios of land use change and assessing ecological impact in northern China in the next 50 years is developed here. The accuracy assessment with the historic data from 1990 to 2001 indicated
the SD model is robust. The aim of this work is to provide a foundation for the understanding of the responses of regional land use to ecological security and future development of tempo-spatial land use models satisfying ecological security requirements.
A comparison between different ecological de-farming modes in the loess hilly-gully region in China
Agricultural land use ; Agricultural technique ; Agriculture ; China ; Comparative study ; Ecology ; Erosion control ; Gansu ; Gully erosion ; Loess ; Ningxia ; Plateau ; Shaanxi ; Shanxi ; Soil erosion
terraces, enlarged garden plots and restored vegetation, and compares the differences of two modes of de-farming area, ecological reestablishment index, investment demand amount and benefits. The results show that RTD mode has many advantages, including
suitable investment, sufficient grain supply and great benefits, and will be the best ecological reestablishment mode in the loess hilly-gully region. RD mode which is being carried out in this region should be replaced by RTD mode as soon as possible.
combined with multivariate analyses for Tenerife as an example. The goal of the studies was to construct a vegetation classification for Tenerife which is based on its physiognomic, ecological and plant-sociological criteria as well as cartographical