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黑龍江省糧食水足跡時空分布規(guī)律與影響因素分析
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黑龍江省自然科學(xué)基金項目(LH2019E009)和東農(nóng)學(xué)者計劃項目(18QC25)


Spatial and Temporal Distributions of Crop Water Footprint and Its Influence Factors Analysis in Heilongjiang Province
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    摘要:

    為分析黑龍江省糧食水足跡的變化規(guī)律,根據(jù)水足跡理論,選取2008—2018年黑龍江省11個地區(qū)進行糧食水足跡評價,并對其時空分布規(guī)律及影響因素進行研究。結(jié)果表明:黑龍江省糧食藍水足跡、綠水足跡的空間分布差異顯著,呈現(xiàn)南北高、東西低的分布趨勢。通過斯皮爾曼相關(guān)系數(shù)分析可知,東、西橫向地區(qū)人口密度大,可用于糧食生產(chǎn)的灌溉水資源消耗少,糧食藍水足跡較低;南、北部致力于農(nóng)業(yè)生產(chǎn),農(nóng)業(yè)灌溉用水消耗較大,糧食藍水足跡較高。南、北部降水儲蓄率高,因而南、北部糧食綠水足跡較高;東、西部橫向地區(qū)地勢較為平坦,植被少,降水不易蓄積,所以東、西部綠水足跡相對較低。利用時間序列模型對黑龍江省糧食水足跡進行預(yù)測得出,2021—2025年黑龍江省糧食總水足跡平均值為2050m3/t。本研究可為黑龍江省農(nóng)業(yè)水資源的合理分配和利用提供參考。

    Abstract:

    In order to evaluate the change of crop water footprint in Heilongjiang Province in recent years, the water footprint of 11 regions in Heilongjiang Province were calculated from 2008 to 2018 based on water footprint theory, meanwhile its spatial and temporal distributions and its influential factors were analyzed. The results showed that the blue and green crop water footprints varied geographically in an enormous way, the distribution trend was high in south and north regions and low in east and west regions. According to the Spelman’s analysis of correlation coefficient, it could be acknowledged that the eastwest horizontal regions had high population density, which caused small consumption of water resources used for crop irrigation and it rendered low trend in water footprint in the eastwest horizontal regions. The northsouth regions were devoted to agricultural production and it had high consumption of agricultural water and relatively high in blue water footprint. The northsouth regions in Heilongjiang Province had good storage capacity of rainfall, so northsouth regions presented high trend in green water footprint. In eastwest regions, their terrains were flat with less coverage of vegetation, which made it low in green water footprint. According temporal series model to predict the regular pattern of crop water footprint in Heilongjiang Province, the total crop water footprint in Heilongjiang Province in 2021 to 2025 was forecasted as 2050m3/t steadily. The research result would be important in arranging the use of agricultural water resources in recent years. 

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劉巍,李雨晴,付強,孟軍,李天霄,戴爽.黑龍江省糧食水足跡時空分布規(guī)律與影響因素分析[J].農(nóng)業(yè)機械學(xué)報,2020,51(8):214-222,335. LIU Wei, LI Yuqing, FU Qiang, MENG Jun, LI Tianxiao, DAI Shuang. Spatial and Temporal Distributions of Crop Water Footprint and Its Influence Factors Analysis in Heilongjiang Province[J]. Transactions of the Chinese Society for Agricultural Machinery,2020,51(8):214-222,335.

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  • 收稿日期:2020-05-06
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  • 在線發(fā)布日期: 2020-08-10
  • 出版日期: 2020-08-10