Your search found 5 records
1 McVicar, T. R.; Davies, P. J.; Qinke, Y.; Zhang, G.. 2002. An introduction to temporal-geographic information systems (TGIS) for assessing, monitoring and modelling regional water and soil processes. In McVicar, T. R.; Rui, L.; Walker, J.; Fitzpatrick, R. W.; Changming, L. (Eds.), Regional water and soil assessment for managing sustainable agriculture in China and Australia. Canberra, Australia: ACIAR. pp.205-223.
(Location: IWMI-HQ Call no: 631.7.1 G592 MCV Record No: H033002)
2 McVicar, T. R.; Zhang, G.; Bradford, A. S.; Wang, H.; Dawes, W. R.; Zhang, L.; Li, L. 2002. Monitoring regional water use efficiency indicators on the North China Plain. In McVicar, T. R.; Rui, L.; Walker, J.; Fitzpatrick, R. W.; Changming, L. (Eds.), Regional water and soil assessment for managing sustainable agriculture in China and Australia. Canberra, Australia: ACIAR. pp.231-257.
Water use efficiency ; Monitoring ; Indicators ; Water conservation ; Maize ; Crop production ; Irrigated farming ; Precipitation ; Information systems / China / Hebei
(Location: IWMI-HQ Call no: 631.7.1 G592 MCV Record No: H033004)
3 McVicar, T. R.; Zhang, G.; Bradford, A. S.; Wang, H.; Dawes, W. R.; Zhang, L.; Lingtao, L. 2000. Developing a spatial information system to monitor regional agricultural water use efficiency for Hebei Province on the North China plain. Canberra, Australia: Commonwealth Scientific and Industrial Research Organisation (CSIRO). 54p.
Water resources ; Water use efficiency ; Monitoring ; Agriculture ; Yields ; Growth period ; Crops ; Maize ; Wheats ; Data ; GIS ; Spatial information / China / Hebei Province
(Location: IWMI HQ Call no: 333.91 G592 MCV Record No: H044213)
http://www.clw.csiro.au/publications/technical2000/tr31-00.pdf
https://vlibrary.iwmi.org/pdf/H044213.pdf
https://vlibrary.iwmi.org/pdf/H044213.pdf
(7.21 MB) (7.21MB)
4 Qi, P.; Xia, Z.; Zhang,G.; Zhang, W.; Chang, Z. 2021. Effects of climate change on agricultural water resource carrying capacity in a high-latitude basin. Journal of Hydrology, 597:126328. (Online first) [doi: https://doi.org/10.1016/j.jhydrol.2021.126328]
Agriculture ; Water resources ; Carrying capacity ; Climate change ; Climatic factors ; Precipitation ; Temperature ; Drought ; Meteorological factors ; Evapotranspiration ; Crop production ; Wheat ; Soybeans ; Rice ; Maize ; Food safety ; River basins / China / Nenjiang River Basin
(Location: IWMI HQ Call no: e-copy only Record No: H050363)
(15.50 MB)
The agricultural water resource carrying capacity (AWRCC) is affected by climate change now as never before. However, it is still unclear how the AWRCC in high latitudes responses to climate change. In this study, spatiotemporal changes in climatic factors and AWRCC during the crop growing season from 1961 to 2014 in the Nenjiang River Basin (NRB), a high-latitude basin in China, were identified via multivariate statistical analysis. Meanwhile, the impact of climatic factors on AWRCC was analyzed by using cross-wavelet approaches and Pearson correlational analysis. The results showed that temperature has followed an increasing trend, especially the lowest temperature during crop growing season, with a trend of 0.57 /10a in the local region. There was no obvious change trend for precipitation, but the interannual change was large. The drought index increased first and then decreased, which was consistent with the trend of the ET0. Different spatial distributions of water resource carrying for all crops in a region were shown with a variation range of 0.22–0.76 kg/m2 in the NRB. It is worth noting that AWRCC showed an increasing trend, especially in the past decade. Precipitation, ET0, and meteorological drought were all key driving factors affecting AWRCC. The correlation was significant between the crop planting proportion and AWRCC under climate change. Moreover, adjusting the planting proportion of wheat, soybean and rice, and increasing that of maize, would be conducive to improving the AWRCC and facilitating the synergistic development of agriculture and wetlands in NRB.
5 Zhang, Q.; Sun, J.; Zhang, G.; Liu, X.; Wu, Y.; Sun, J.; Hu, B. 2023. Spatiotemporal dynamics of water supply-demand patterns under large-scale paddy expansion: implications for regional sustainable water resource management. Agricultural Water Management, 285:108388. (Online first) [doi: https://doi.org/10.1016/j.agwat.2023.108388]
Water supply ; Water resources ; Water requirements ; Rice ; Growth period ; Climate change ; Precipitation ; Crop water use ; Irrigation water ; Water demand ; Water shortage ; Evapotranspiration / China / Sanjiang Plain / Songhua River / Wusuli River
(Location: IWMI HQ Call no: e-copy only Record No: H051983)
https://www.sciencedirect.com/science/article/pii/S0378377423002536/pdfft?md5=c08be234799e27a6e78d439d8bd87d74&pid=1-s2.0-S0378377423002536-main.pdf
https://vlibrary.iwmi.org/pdf/H051983.pdf
https://vlibrary.iwmi.org/pdf/H051983.pdf
(14.80 MB) (14.8 MB)
Climate change and large-scale paddy field expansion have altered the balance of water supply–demand in the Sanjiang Plain, a substantial commercial grain base in the high-latitude region of China. However, the matching pattern of water supply–demand throughout the growing period during the rapid expansion processes of paddy fields remains unknown. Hence, this study aimed to analyze the spatial–temporal variation characteristics of effective precipitation (Pem), crop water demand (ETc), supply–demand matching degree (MD), and irrigation water demand (IR) for different growing periods of paddy fields in the Sanjiang Plain using high-resolution meteorological and multi-period rice distribution data sets. The results showed that the area of paddy fields increased by 446% (20,064 km2) from 1990 to 2020 and almost completely covered the lowland of the Sanjiang Plain in 2020. ETc showed a slightly increasing trend initially and decreased afterward, while Pem and MD marginally increased at first and considerably increased subsequently during 1990–1995 and 2000–2020, respectively. MD has largely increased since 2000 in the Jiansanjiang area and the lower reaches of the Songhua River, where the largest paddy field expansion was experienced. However, the regional IR increased rapidly after 2000, which was associated with the expansion of paddy fields and further exceeded the carrying capacity of regional water resources. The efficiency of water resource utilization should be urgently improved, and integrated water resource planning and management should be implemented considering precipitation, surface water (regional water resources and transit water resources), and groundwater to promote the sustainable development of regional agriculture.
Powered by DB/Text WebPublisher, from
