水资源保护
水資源保護
수자원보호
WATER RESOURCES PROTECTION
2014年
5期
44-51
,共8页
何艳虎%陈晓宏%林凯荣%银磊%吴孝情
何豔虎%陳曉宏%林凱榮%銀磊%吳孝情
하염호%진효굉%림개영%은뢰%오효정
用水量%向量自回归模型%脉冲响应%方差分解%东江流域
用水量%嚮量自迴歸模型%脈遲響應%方差分解%東江流域
용수량%향량자회귀모형%맥충향응%방차분해%동강류역
water consumption%vector autoregressive model%impulse response%variance decomposition%Dongjiang River Basin
运用协整的方法研究广东省东江流域近30年来总用水量与各行业用水量及流域来水量的长期关系,并建立了向量自回归模型对行业用水量和来水量的关系进行脉冲响应分析和方差分解。结果表明,东江流域总用水量的波动主要归因于生产用水的冲击,其对总用水量的方差贡献率之和长期达到91%以上,总用水量对来水的冲击呈现微弱负向响应;第二产业用水对自身和除第一产业用水外的行业用水波动影响强大而持久,为显著的正向响应,远大于各行业用水相互间的冲击。
運用協整的方法研究廣東省東江流域近30年來總用水量與各行業用水量及流域來水量的長期關繫,併建立瞭嚮量自迴歸模型對行業用水量和來水量的關繫進行脈遲響應分析和方差分解。結果錶明,東江流域總用水量的波動主要歸因于生產用水的遲擊,其對總用水量的方差貢獻率之和長期達到91%以上,總用水量對來水的遲擊呈現微弱負嚮響應;第二產業用水對自身和除第一產業用水外的行業用水波動影響彊大而持久,為顯著的正嚮響應,遠大于各行業用水相互間的遲擊。
운용협정적방법연구광동성동강류역근30년래총용수량여각행업용수량급류역래수량적장기관계,병건립료향량자회귀모형대행업용수량화래수량적관계진행맥충향응분석화방차분해。결과표명,동강류역총용수량적파동주요귀인우생산용수적충격,기대총용수량적방차공헌솔지화장기체도91%이상,총용수량대래수적충격정현미약부향향응;제이산업용수대자신화제제일산업용수외적행업용수파동영향강대이지구,위현저적정향향응,원대우각행업용수상호간적충격。
Abst rca t:The cointegration method was used to study the long-term relationships between total water consumption , industrial water consumption , and basin inflow over the past 30 years in the Dongjiang River Basin , in Guangdong Province .The vector autoregressive ( VAR ) model was established for impulse response analysis and variance decomposition of the relationship between industrial water consumption and inflow .The results show that the fluctuation of total water consumption in the Dongjiang River Basin is mainly due to the impact of the production water, which accounts for over 91%of the variance contribution rate for a long time .The impact of the total water consumption on the basin inflow presents a slightly negative response .The secondary industrial water consumption has a significant and durable effect on itself and all other industrial water consumption except for the primary industry water consumption , showing a significantly positive response , which is much greater than the mutual impact of water consumption of various industries .