Biopolymer-biocement composite treatment for stabilisation of soil against both current and wave erosion     

Dubey  Anant Aishwarya  Hooper-Lewis  Jack  Ravi  K.  Dhami  Navdeep Kaur  Mukherjee  Abhijit 《Acta Geotechnica》2022,17(12):5391-5410

Acta Geotechnica - Increased frequency of extreme weather events has made the conservation of riverbanks and coastlines a global concern. Soil stabilisation via microbially induced calcite...  相似文献   

Phenology of trees and urbanization: a comparative study between New York City and Ithaca,New York     

Ishwar Dhami  Kathryn G. Arano  Timothy A. Warner  Rico M. Gazal  Sudiksha Joshi 《国际地球制图》2013,28(7):507-526

The ‘global warming’ effect has been found to influence vegetation phenological processes. Heat island phenomenon associated with urbanized area presents a unique place to investigate its local warming effects. This study compares the date of budburst (DOBB) of street London plane trees (Platanus × acerifolia) between highly urbanized New York City (NYC) and relatively less urbanized Ithaca, New York in 2007 and 2008. It also linked DOBB with land surface temperature and fractional vegetation cover derived from Landsat satellite images. The DOBB in NYC and Ithaca differed significantly as budburst occurred 3 and 4 days earlier in NYC than in Ithaca in 2007 and 2008, respectively. The intensity of the heat island effect and its effect on tree phenology were greater in NYC. Results show that DOBB can be explained by temperature, and findings could be extrapolated to make inferences on the potential impact of global warming on vegetation communities.  相似文献   

Evaluation of the SWAT model for water balance study of a mountainous snowfed river basin of Nepal     

Birsingh Dhami  Sushil Kumar Himanshu  Ashish Pandey  Amar Kant Gautam 《Environmental Earth Sciences》2018,77(1):21

In this study, a semi-distributed hydrologic model Soil and Water Assessment Tool (SWAT) has been employed for the Karnali River basin, Nepal to test its applicability for hydrological simulation. Further, model was evaluated to carry out the water balance study of the basin and to determine the snowmelt contribution in the river flow. Snowmelt Runoff Model (SRM) was also used to compare the snowmelt runoff simulated from the SWAT model. The statistical results show that performance of the SWAT model in the Karnali River basin is quite good (p-factor = 0.88 and 0.88, for daily calibration and validation, respectively; r-factor = 0.76 and 0.71, for daily calibration and validation, respectively). Baseflow alpha factor (ALPHA_BF) was found most sensitive parameter for the flow simulation. The study revealed that the average annual runoff volume available at the basin outlet is about 47.16 billion cubic metre out of which about 12% of runoff volume is contributed by the snowmelt runoff. About 25% of annual precipitation seems to be lost as evapotranspiration. The results revealed that both the models, SWAT and SRM, can be efficiently applied in the mountainous river basins of Nepal for planning and management of water resources.  相似文献