Agricultural water and land resources carrying capacity based on ecological footprint method:A case of Youyi Farm in Sanjiang Plain
The coordinated development of regional agricultural water and land resources is of great signific-ance to ensure agricultural production.However,the study on coupling evaluation of agricultural water and land resources is still insufficient.This article applies the ecological footprint method to quantitatively assess the carrying capacity of local land and water resources,taking the Youyi Farm of Sanjiang Plain,a scientific and technological demonstration area of the Black Earth Granary,as an example.The results showed that:1)The ecological footprint of per capita agricultural water resources was 5.26 hm2,and the ecological carrying capa-city of per capita was 1.97 hm2.The ecological footprint of per capita water resources was far more than the ecological carrying capacity.The ecological deficit of water resources was 2.82.The utilization of water re-sources was in an unsafe state.Per capita ecological footprint of cultivated land resources was less than the eco-logical carrying capacity,ecological surplus of cultivated land resources,the average ecological pressure index was 0.69.The use of cultivated land resources was in a safe state.2)The coupling coordination degree of the ecological footprint of agricultural land and water resources and the ecological carrying capacity of land and water resources of Youyi Farm is generally in the state of barely coordinated and primary coordination.3)In summary,although Youyi Farm was rich in land resources,water resources were scarce,indicating a signific-ant room for improvement in the level of water and land matching in the region.Analyzing whether the carry-ing capacity of agricultural water and land resources is within a reasonable and controllable range is of great significance for coordinating the relationship between agricultural water and land resources and realizing the sustainable development of agricultural water and land resources.
agricultural water and land resourcesecological footprint methodgranary in Black SoilYouyi Farm
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