نتایج جستجو برای: land fragmentation
تعداد نتایج: 151571 فیلتر نتایج به سال:
Background: Arable land protection is the key to guaranteeing food security in China, as well protecting ecological environment and ensuring continuous increase of farmers’ income. Crop rotation one many forms arable protection. Objectives: In this paper, we aim estimate possible influence fragmentation, famers’ willingness rotate, behavior China. Combining rotate using theory intermediary effe...
Predicting the capacity of ecosystems to absorb impacts from disturbance events (resilience), including land-use intensification and landscape fragmentation, is challenging in the face of global change. Little is known about the impacts of fragmentation on ecosystem functioning from a multi-dimensional perspective (multiple traits). This study used 58 500-m linear transects to quantify changes ...
One method of understanding landscape pattern changes is through an land use/land cover (LULC) changes, which are closely related to changes. Previous studies have monitored LULC across North Korea but did not consider at a local scale. Using multiple products construct sample points, the was classified using random-forest algorithm and Landsat satellite dataset. The overall accuracy classifica...
The aim of this research was to compare the rangelands structure and landscape degradation in Iril sub-watersheds, Ardabil province. Land use map and the Landscape Fragmentation Tool were used to determine 4 classes of patch, edge, perforated and core through 5, 10, 15 and 20m cell sizes. The landscape metrics of LPI, ED, cohesion, mesh, split, and AI were calculated using Fragstats software. R...
Kane County is located on the western fringe of the greater Chicago metropolitan area. Development pressures there have caused rapid increases in land consumption and property values. The county’s Forest Preserve District is actively purchasing land for conservation, but it is important to understand the long-term costs associated with current conservation goals. We developed 18 future scenario...
Since the Chinese government carried out the reform and opening up policy, Xishuangbanna Dai Autonomous Prefecture has experienced rapid urbanization and dramatic land use change. This research aims at analyzing urban expansion in Xishuangbanna and its impact on the land use pattern using combined methods, including radar graph, the gradient-direction method and landscape metrics. Seven land us...
Changes in forested landscapes may have important consequences for ecosystem services and biodiversity conservation. In northern Spain, major changes in land use occurred during the second half of the 20th century, but their impacts on forests have not been quantified. We evaluated the dynamics of landscape and forest distribution patterns between 1957 and 2003 in Fragas do Eume Natural Park (n...
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