000029020 001__ 29020
000029020 037__ $$aARTICLE--2013-028
000029020 041__ $$aEnglish
000029020 100__ $$aBhatt, D.
000029020 100__ $$aMaskey, S.
000029020 100__ $$aBabel, M.
000029020 100__ $$aUhlenbrook, S.
000029020 100__ $$aPrasad, K. 
000029020 245__ $$aClimate Trends and Impacts on Crop Production in the Koshi River Basin of Nepal
000029020 260__ $$c2013
000029020 300__ $$a1-11
000029020 511__ $$aKoshi, Article
000029020 511__ $$aHICAP, adaptarticle
000029020 520__ $$aUnderstanding crop responses to climate is essential to cope with anticipated changes in temperature and precipitation. We investigated the climate–crop yield relationship and the impact of historical climate on yields of rice, maize and wheat in the Koshi basin of Nepal. The results show significant impact of growing season temperature and precipitation on crop production in the region. Rice, maize and wheat cultivated at altitudes below 1,100, 1,350 and 1,700 m amsl (above mean sea level), respectively, suffer from stress due to higher temperatures particularly during flowering and yield formation stages. Responses of crop yields to a unitary increment in growing season mean temperature vary from −6 to 16 %, −4 to 11 % and −12 to 3 % for rice, maize and wheat, respectively, depending on the location and elevation in the basin. In most parts of the basin, we observe warming trends in growing season mean temperatures of rice, maize and wheat over the last few decades with clear evidence of negative impacts on yields. However, at some high-elevation areas, positive impacts of warming are also observed on rice and maize yields. If the observed trends in temperature continue in future, the impact is likely to be mostly negative on crop production in the basin. However, crop production may gain from the warming at relatively higher altitudes provided other conditions, e.g., water availability, soil fertility, are favorable.
000029020 653__ $$aClimate trend
000029020 653__ $$aCrop yield
000029020 653__ $$aKoshi basin
000029020 653__ $$aRiver basin
000029020 653__ $$aNepal
000029020 650__ $$aAdaptation
000029020 650__ $$aClimate change
000029020 773__ $$pRegional Environmental Change
000029020 8564_ $$uhttp://link.springer.com/article/10.1007/s10113-013-0576-6$$yOpen Access
000029020 8560_ $$fajha@icimod.org
000029020 980__ $$aARTICLE