| This work taking Lujiang County as the research object,using the ecological footprint theory as a guide,using literature analysis method,time series analysis method as the main research methods,through field research of crop straw's resources in Lujiang County,the resources use way,the proportion,Lujiang County straw resource utilization of ecological footprint analysis and elaboration of straw resources utilization contribution to regional sustainable development.In 2012,the ecological footprint of Lujiang county was 515485.325HA,the ecological capacity was 428051.859HA,and the ecological deficit was-87433.466 HA.The per capita ecological deficit was-0.07343321 HA.In 2013,the ecological footprint of Lujiang county was 571078.955HA,the ecological capacity was 428051.859HA,and the ecological deficit was-139444.45HA.The per capita ecological deficit was-0.11687761.In 2014,the ecological footprint of Lujiang county was 572732.851HA,the ecological capacity was 459302.23HA,and the ecological deficit was-113430.62 HA.The per capita ecological deficit was-0.09492674 HA.From 2012 to 2013,Lujiang county was in a state of ecological deficit,and the ecological footprint increased continuously,even though the ecological carrying capacity was increasing,but the ecological footprint increased more than the ecological carrying capacity.It can be known that the economic development of Lujiang county is at the expense of the environment and consumption of resources,the development model is not sustainable,the environmental pressure with the economic development is more and more big.The main crops in Lujiang county are grain,oil and economic crops.Lujiang County in 2012 the amount of straw resources for 92.04 million t,which accounted for 73.3%of rice,wheat accounted for 11.4%,corn accounted for 0.7%,leguminous accounted for 0.7%,potato 1.6%,rape accounted for 7.7%,0.8%peanut,cotton accounted for 3.8%.2013 Lujiang County of straw resources for 95.9161 million t,which accounted for 73.3%of rice,wheat accounted for 11.4%,corn accounted for 0.7%,leguminous accounted for 0.7%,potato 1.6%.,rape accounted for 7.7%,0.8%peanut,cotton accounted for 3.8%.2014 Lujiang County of straw resources for 97.2231 million t,which accounted for 76.2%of rice,11.1%in wheat,corn accounted for 0.7%,beans accounted for 0.5%,potato accounted for 1.4%,6.4%of rape,0.8%peanut,economic crops,cotton accounted ror 2.9%.2012 to 2013,Lujiang County straw resources,the largest amount is rice straw resources,accounting for the highest proportion of the amount of straw resources.At the same time,the maximum utilization of rice resources and the proportion of resource utilization is also the highest.But the amount of resources is the most too.The amount of resources unused is also the highest proportion.Because of Lujiang county crop increase year after year,the amount of straw resources in Lujiang county has continued to increase.Because the government and the society pay more attention to the comprehensive utilization of straws,the utilization of straw's resources in Lujiang county is also increasing.In 2012 straw's resources of ecological carrying capacity in Lujiang county was 0.46465715 million HA.In 2013,the ecological carrying capacity of straw resources in Lujiang county was 0.51152458 million HA.In 2014 the ecological carrying capacity of straw resources was 0.63806666 million HA.In 2012 straws resources' ecological carries power for the Lujiang County Ecological capacity carries of 11.9%.In 2013 straw resources' ecological carries capacity accounted for Lujiang County Ecological carrying capacity of 12.6%.In 2014 straw resources ecological capacity carries power for the Lujiang County's Ecological carrying capacity of 15.9%,showed that straw resources of in Lujiang County Ecological carrying capacity 'with significant.In the utilization of straw resources in Lujiang County,the fertilizer is the main mode currently,which is mainly due to the cost of returning the straw to the field.The anaysis on straw unit resource ecological capacity shows that straw feed per ton of ecological capacity is 0.00369482HA,fertilizer of ecological capacity is 0.0009017075HA and fuel of ecological capacity is 2706.49179HA.The fuel efficiency is the highest.The proportion of straw resources is also rising.In 2012 straw fuel utilization of resources is 69400t,in 2013 the amount of straw to fuel the utilization of resources is76400 t,in 2014 the amount of straw used as fuel for the use of resources is 95300t.Research shows that in 2012,the potential ecological carrying capacity of straw resources in Lujiang county was 1.47802046 million HA.In 2013,the potential ecological carrying capacity of straw resources in Lujiang county was 0.9391727 HA.In 2014,the potential ecological carrying capacity of straw resources in Lujiang county was 1.75800144 HA.Therefore,the comprehensive utilization of straw in Lujiang county should pay attention to the utilization of rice straw,and also develop to the direction of the fuel further. |
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