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

被引：0
|
作者：
Liu W. [1 ]
Li Y. [1 ]
Fu Q. [1 ]
Meng J. [2 ]
Li T. [1 ]
Dai S. [2 ]
机构：
[1] School of Water Conservancy and Civil Engineering, Northeast Agricultural University, Harbin
[2] School of Economics and Management, Northeast Agricultural University, Harbin
来源：
Nongye Jixie Xuebao/Transactions of the Chinese Society for Agricultural Machinery | 2020年 / 51卷 / 08期
关键词：
Crop water footprint; Heilongjiang Province; Influence factors; Spatial and temporal distribution;
D O I：
10.6041/j.issn.1000-1298.2020.08.024
中图分类号：
学科分类号：
摘要：
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 m3/t steadily. The research result would be important in arranging the use of agricultural water resources in recent years. © 2020, Chinese Society of Agricultural Machinery. All right reserved.
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页码：214 / 222and335
相关论文
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