Effects of climate change on agricultural water resource carrying capacity in a high-latitude basin

删除或更新信息，请邮件至freekaoyan#163.com(#换成@)

本站小编 Free考研考试/2021-12-12

论文编号:
论文题目:	Effects of climate change on agricultural water resource carrying capacity in a high-latitude basin
英文论文题目:	Effects of climate change on agricultural water resource carrying capacity in a high-latitude basin
第一作者:	齐鹏
英文第一作者:	P. Qi
联系作者:	张文广
英文联系作者:	Zhang, Wenguang
外单位作者单位:
英文外单位作者单位:
发表年度:	2021
卷:	597
期:
页码:
摘要:	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 degrees C/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/m(2) 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.
英文摘要:	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 degrees C/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/m(2) 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.
刊物名称:	Journal of Hydrology
英文刊物名称:	Journal of Hydrology
论文全文:
英文论文全文:
全文链接:
其它备注:
英文其它备注:
学科:
英文学科:
影响因子:
第一作者所在部门:
英文第一作者所在部门:
论文出处:
英文论文出处:
论文类别:
英文论文类别:
参与作者:	P. Qi, Z. K. Xia, G. X. Zhang, W. G. Zhang and Z. H. Chang
英文参与作者:	P. Qi, Z. K. Xia, G. X. Zhang, W. G. Zhang and Z. H. Chang

Effects of climate change on agricultural water resource carrying capacity in a high-latitude basin

本站小编 Free考研考试/2021-12-12

相关话题/

领限时大额优惠券,享本站正版考研考试资料!