Essays about: "drainage effect"

Showing result 1 - 5 of 69 essays containing the words drainage effect.

1. 1. Riparian plant biodiversity and community composition of ditches and straightened streams : identifying key environmental drivers in a boreal forest setting

   University essay from SLU/Dept. of Forest Ecology and Management

   Author : Rasmus Staaf; [2024]
   Keywords : artificial waterways; riparian zone; novel ecosystems; ; forestry; ditch network maintenance; species richness; hill-diversity; drainage ditches; coarse woody debris; ditch cleaning; ecology;

   Abstract : Modified ecosystems are typically seen as degraded and having no ecological value. In many cases, the modification of the ecosystem was done more than 100 years ago and may have had time to recover and become a refugia for species that were once more common in the landscape. READ MORE

3. 2. Långsiktig torvnedbrytning för olika vegetationstyper på dikad skogsmark

   University essay from SLU/School for Forest Management

   Author : Carl Carlsson; Sofie Jönsson; [2023]
   Keywords : växthusgaser; torvmark; dikning;

   Abstract : Skogsklädda torvmarker i Sverige dikades i stor utsträckning mellan 1930- och 1980-talen i syfte att höja virkesproduktionen. Till följd av klimatproblemet har intresset för dikade torvmarkers bidrag till växthusgasutsläppen ökat under de senaste decennierna. READ MORE

4. 3. Nitrogen legacies in agricultural catchments : an analysis of 170 years of nitrogen legacies data in four Swedish agricultural catchments

   University essay from SLU/Dept. of Soil and Environment

   Author : Laura-Ainhoa Prischl; [2023]
   Keywords : nitrogen mass balance; nitrogen surplus; land use trajectories; hysteresis effect; water quality; agriculture; nitrogen surplus; land use trajectories; hysteresis effect; water quality; agriculture;

   Abstract : Despite the enforcement of legislation and application of measures, nitrogen (N) levels continue to be high in streams. One of the reasons for the low N reduction, is the legacy accumulation of N. READ MORE

5. 4. Dagvatten och urbana ekosystemtjänster på bostadsgården : en platsanalys av Woodhouse Rosendal i Uppsala

   University essay from SLU/Dept. of Urban and Rural Development

   Author : Linus Sundberg; [2023]
   Keywords : bostadsgård; dagvattenhantering; regnbädd; ekosystemtjänster; urbana ekosystemtjänster; bostadsgårdens fyra roller; rymlighet; Woodhouse Rosendal;

   Abstract : Den kontinuerliga klimatförändringen resulterar i mer frekventa och intensiva skyfall. Framåt år 2100 förväntas Uppsala ha en ökad årlig medelnederbörd på 20–30 procent. Uppsala har planerat att öka antalet bostäder och utöka stadsdelar för att bemöta sin befolkningsökning. READ MORE

6. 5. The influence of spatial variations in rain intensity for cloudburst modelling : a case study of the Gävle cloudburst

   University essay from Uppsala universitet/Institutionen för geovetenskaper

   Author : Fanny Jeppsson Stahl; [2022]
   Keywords : Flood modelling; pluvial flooding; spatial variations in rain intensity; design storms; MIKE 21 Flow Model FM; 2D hydraulic modelling; Skyfallsmodellering; pluviala översvämningar; spatiala variationer i regnintensitet; typregn; MIKE 21 Flow Model FM;

   Abstract : With an intensification of heavy rain events in a changing climate and a rapid urbanization the risk for pluvial flooding is increasing in our societies. Pluvial flooding, which is formed when the rainfall rate exceeds the infiltration or drainage rate, can occur rapidly and cause great damages, large economic losses and possibly risk human lives. READ MORE