نتایج جستجو برای: urbanizing areas
تعداد نتایج: 401901 فیلتر نتایج به سال:
Assessing the Impacts of Climate Change, Urbanization, and Filter Strips on Water Quality Using SWAT
Precipitation changes and urban growth are two factors altering the state of water quality. Changes in precipitation will alter the amount and timing of flows, and the corresponding sediment and nutrient dynamics. Meanwhile, densification associated with urban growth will create more impervious surfaces which will alter sediment and nutrient loadings. Land and water managers rely on models to d...
In a rapidly urbanizing world, trace element pollution may represent a threat to human health and wildlife, and it is therefore crucial to assess both exposition levels and associated effects of trace element contamination on urban vertebrates. In this study, we investigated the impact of urbanization on trace element contamination and stress physiology in a wild bird species, the common blackb...
1.1 Urban forestry in the United States: Status and scope The United States has observed unprecedented urban growth over the last few decades. Nowak et al. (2005) noted that between 1990 and 2000, the share of urban land area in the nation increased from 2.5% to 3.1%. Existing urban areas in the U.S. maintain average tree coverage of 27% (Nowak et al. 2001), and consist of millions of trees alo...
The rapid expansion of urbanization has promoted the prosperity economy and society but also caused rural ecological problems. This study takes Dujiangyan Irrigation District as an example, to construct recreation patterns, it breaks through pattern construction mode using a single factor that been used in previous studies. We analyzed impact landscape connectivity area thresholds at different ...
The world is rapidly urbanizing, thereby transforming natural landscapes and changing the abundance distribution of organisms. However, insights into effects urbanization on species interactions, plant–pathogen interactions in particular, are lacking. We investigated powdery mildew infection Quercus robur at continental within-city scales. At scale, we compared levels between urban rural areas ...
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