Matches in SemOpenAlex for { <https://semopenalex.org/work/W2341866092> ?p ?o ?g. }
Showing items 1 to 67 of
67
with 100 items per page.
- W2341866092 abstract "This dissertation presents a modeling approach to assess the long-term food producing capacities, and consequently food security, in China using a Web-based land evaluation system (WLES, http://weble.ugent.be). WLES implements a 3-step quantitative land evaluation model which evaluates the realistic yield of a field crop by considering the effects of (a) radiation and temperature regimes, (b) water stress, (c) limited soil fertility and (d) insufficient crop management. Homogeneous 5 km by 5 km grid datasets of climatic, soil, crop and management parameters were created. Food productions in 2030 and 2050 were simulated using production scenarios involving population growth, urbanization rate, cropland area, cropping intensity, management level and soil degradation. The model predicted that food crops may experience a 9.7% productivity loss by 2030 if the soil is degraded at the current rate (“business-as-usual” scenario, BAU); productivity loss will increase to an unbearable level of 36.7% by 2050, should the soil be twice more degraded than it is now (“double degradation” scenario, 2xSD). China's food producing capacity tends to decline in the long run if the general trend of soil degradation will not be reverted. China will be able to achieve a production of 430 million tons from food crops in 2030 and 410 million tons in 2050 under the BAU scenario, which are 11.5% and 15.5% lower than the 2005 level, respectively. In per capita terms, China will experience a food shortage of 9.8% in 2030 and 7.5% in 2050 even under the “zero-degradation” scenario (0xSD), compared to a 12.7% food surplus in 2005. Per capita food shortage in 2050 will be as high as 22.6% under the BAU scenario and 38.3% under the 2xSD scenario. The results suggest the present-day producing capacity (2005 level) will not be able to sustain the long-term needs under the current management level even if soil degradation is not becoming more limiting. The detrimental effect of soil degradation on food security is so evident that technical measures and policy levers must be activated today in order to avoid, or at least mitigate, the risks of food insecurity tomorrow." @default.
- W2341866092 created "2016-06-24" @default.
- W2341866092 creator A5026665736 @default.
- W2341866092 date "2008-01-01" @default.
- W2341866092 modified "2023-09-23" @default.
- W2341866092 title "Simulating long-term food producing capacities in China using a Web-based land evaluation system" @default.
- W2341866092 hasPublicationYear "2008" @default.
- W2341866092 type Work @default.
- W2341866092 sameAs 2341866092 @default.
- W2341866092 citedByCount "0" @default.
- W2341866092 crossrefType "dissertation" @default.
- W2341866092 hasAuthorship W2341866092A5026665736 @default.
- W2341866092 hasConcept C113052830 @default.
- W2341866092 hasConcept C118518473 @default.
- W2341866092 hasConcept C127413603 @default.
- W2341866092 hasConcept C144024400 @default.
- W2341866092 hasConcept C149923435 @default.
- W2341866092 hasConcept C162324750 @default.
- W2341866092 hasConcept C166957645 @default.
- W2341866092 hasConcept C205649164 @default.
- W2341866092 hasConcept C2908647359 @default.
- W2341866092 hasConcept C39432304 @default.
- W2341866092 hasConcept C48824518 @default.
- W2341866092 hasConcept C524765639 @default.
- W2341866092 hasConcept C549605437 @default.
- W2341866092 hasConcept C88463610 @default.
- W2341866092 hasConceptScore W2341866092C113052830 @default.
- W2341866092 hasConceptScore W2341866092C118518473 @default.
- W2341866092 hasConceptScore W2341866092C127413603 @default.
- W2341866092 hasConceptScore W2341866092C144024400 @default.
- W2341866092 hasConceptScore W2341866092C149923435 @default.
- W2341866092 hasConceptScore W2341866092C162324750 @default.
- W2341866092 hasConceptScore W2341866092C166957645 @default.
- W2341866092 hasConceptScore W2341866092C205649164 @default.
- W2341866092 hasConceptScore W2341866092C2908647359 @default.
- W2341866092 hasConceptScore W2341866092C39432304 @default.
- W2341866092 hasConceptScore W2341866092C48824518 @default.
- W2341866092 hasConceptScore W2341866092C524765639 @default.
- W2341866092 hasConceptScore W2341866092C549605437 @default.
- W2341866092 hasConceptScore W2341866092C88463610 @default.
- W2341866092 hasLocation W23418660921 @default.
- W2341866092 hasOpenAccess W2341866092 @default.
- W2341866092 hasPrimaryLocation W23418660921 @default.
- W2341866092 hasRelatedWork W1556748410 @default.
- W2341866092 hasRelatedWork W1978747933 @default.
- W2341866092 hasRelatedWork W1991927410 @default.
- W2341866092 hasRelatedWork W205998232 @default.
- W2341866092 hasRelatedWork W21397097 @default.
- W2341866092 hasRelatedWork W2160593568 @default.
- W2341866092 hasRelatedWork W2371849981 @default.
- W2341866092 hasRelatedWork W2768079294 @default.
- W2341866092 hasRelatedWork W2786982683 @default.
- W2341866092 hasRelatedWork W2953337897 @default.
- W2341866092 hasRelatedWork W2955466032 @default.
- W2341866092 hasRelatedWork W2970278740 @default.
- W2341866092 hasRelatedWork W2970774869 @default.
- W2341866092 hasRelatedWork W2990525267 @default.
- W2341866092 hasRelatedWork W2997541589 @default.
- W2341866092 hasRelatedWork W3002631549 @default.
- W2341866092 hasRelatedWork W3126671230 @default.
- W2341866092 hasRelatedWork W3138189821 @default.
- W2341866092 hasRelatedWork W3158160417 @default.
- W2341866092 hasRelatedWork W2185604711 @default.
- W2341866092 isParatext "false" @default.
- W2341866092 isRetracted "false" @default.
- W2341866092 magId "2341866092" @default.
- W2341866092 workType "dissertation" @default.