Evaluating the impact of ecological construction measures on water balance in the Loess Plateau region of China within the Budyko framework
Evaluating the impact of ecological construction measures on water balance in the Loess Plateau region of China within the Budyko framework
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Budyko框架下评价生态建设措施对中国黄土高原地区水平衡的影响
DOI：
10.1016/j.jhydrol.2021.126596
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发表时间：
2021-10
影响因子：
6.4
通讯作者：
Yang Zhao
中科院分区：
文献类型：
--
作者：
Kun-xia Yu;Xiang Zhang;Bingxiang Xu;Peng Li;Xiaoming Zhang;Zhanbin Li;Yang Zhao
布迪科框架可以有效地量化气候变化和人类活动对径流变化的影响，但具体的生态建设措施对水平衡的影响还需要进一步研究。利用Budyko框架分析了生态建设措施对长期水能平衡的影响，并量化了气候变量和生态建设措施对径流变化的贡献。首先对地表参数的解释变量进行选择和评价，然后基于Budyko假设建立了地表参数作为解释变量函数的长期降雨-径流模型。最后，求出了各解释变量的径流弹性，并进一步分析了气候变量和生态建设措施对不同亚期径流变化的贡献。将该框架应用于位于黄土高原的黄河大支流无定河，并采用自举技术对该框架进行了交叉验证。在水平梯田、淤地坝、人工草地、人工造林和天然更新5种生态建设措施中，对长期水能平衡影响最大的是天然更新，人工草地对径流的作用也是显著的。对径流变化贡献率的分析表明，与1957~1971年的基准期相比，20世纪70年代至90年代的径流减少的主要原因是降水，2000年以后，植被措施的影响增强并逐渐成为主导因素。
The Budyko framework can effectively quantify the effects of climate change and human activities on runoff changes; however, the impact of specific ecological construction measure on water balance requires further investigation. In this study, a Budyko framework was used to analyze the impact of ecological construction measures on the long-term water-energy balance and quantify the contribution of climate variables and ecological construction measures to runoff change. First, the explanatory variables of land surface parameters were selected and evaluated; next, the long-term rainfall-runoff models were established based on the Budyko hypothesis with land surface parameters expressed as a function of explanatory variables. Finally, the runoff elasticities of each explanatory variable were derived, and the contribution of climate variables and ecological construction measures to runoff change at different sub-periods were further analyzed. The framework was applied to the Wuding River, which is a large tributary of the Yellow River located in the Loess Plateau, and a bootstrapping technique was applied to conduct cross validation of the proposed framework. Among the five ecological construction measures, i.e. horizontal terrace, check-dam, artificial grassland, artificial afforestation, and natural reforestation, the most significant impact on the long-term water-energy balance was the natural reforestation; the role of artificial grassland on runoff was also significant. Analysis of contribution rates to runoff change revealed that precipitation is the main factor associated with the decrease in runoff from the 1970s to the 1990s compared to the baseline period from 1957 to 1971, and the impact of vegetation measures increased and gradually became dominant after the year 2000.
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影响因子：
4.6
作者：
Sinha J;Sharma A;Khan M;Goyal MK
通讯作者：
Goyal MK
通过模型模拟评估中国黄土高原淤地坝的水文效应
影响因子：
6.3
作者：
Xu, Y. D.;Fu, B. J.;He, C. S.
通讯作者：
He, C. S.
影响因子：
56.9
作者：
Vörösmarty, CJ;Green, P;Lammers, RB
通讯作者：
Lammers, RB
影响因子：
6.3
作者：
Jianyu Liu;Qiang Zhang;V. Singh;Changqing Song;Yongqiang Zhang;P. Sun;Xihui Gu
通讯作者：
Jianyu Liu;Qiang Zhang;V. Singh;Changqing Song;Yongqiang Zhang;P. Sun;Xihui Gu
影响因子：
4.6
作者：
V. Kuhnel;J. Dooge;J. O'kane;R. Romanowicz
通讯作者：
V. Kuhnel;J. Dooge;J. O'kane;R. Romanowicz