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• W2368808661 abstract "Both ecological and economic benefits are important for land sustainable development,particularly over Northwest China with fragile eco-environment where ecological benefit is usually ignored but more important.The authors performed a study on rational agricultural land use structure over the reclamation area in Yili Prefecture,Xinjiang,through simultaneously considering the both benefits.Optimization of agricultural land use structure in reclamation area,Yili Prefecture basically refers to increases in the area ratios of forestland and grassland and restructuring of crop production.Increases in area ratios of forestland and grassland are particularly critical to protection of cropland environment and to the increase in cropland fertility while maintaining the traditional crop production structure is vital to the stability of local ecological,economic and social systems.Based on land use data of the reclamation area of Yili in 2008,restructuring land included cropland,forest,grassland,sandy land and saline land while unchanged land consisted of water bodies,land for construction and swampland.Apart from the developed cropland,forestland and grassland,the reclamation of developable land(sandy land and saline land)was set to be increased at a step of one third of the total developable land area,namely 150.53 km2,301.07 km2,451.60 km2 for three scenarios.For scenario I,attention was paid to keep the structure of crop,forestry,and animal husbandry in reclamation area same as that of existing ones,which is 55.2%cropland,2.5%forestland and 42.3%grassland,respectively.Scenario III was considered as a rational structure of agriculture,with 40%cropland,10%forestland and 50%grassland,respectively.The transitional form between the scenario III and I was set as scenario II.Cropland restructuring was primarily realized on a linear programming.In terms of basic conditions for three different scenarios,the linear programming software of Lindo 6.1 was used to calculate sowing areas for rice,wheat and corn.It was found that the ratios of sowing areas to the total sowing areas for the other crops,i.e.,potato,cotton,oil-bearing crops,hemp,sugar beet,vegetables and melon were based on the average values for Huocheng County,Qapqal County and Gongliu County from 2001 to 2007,namely 0.39%,7.59%,7.23%,0.43%、8.87%and 3.89%,respectively.It was suggested that for optimization of agricultural land use structure in the reclamation area,the proportion of crop production,forestland and grassland would be approximately 4:1:5.For restructuring of crop production,maintaining the yield of per unit area food crop and traditional crop planting proportions should be placed emphasis.Planting ratios for four main food crops,i.e.,rice,wheat,maize and bean is around 1:4:3:2." @default.
• W2368808661 created "2016-06-24" @default.
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• W2368808661 date "2009-01-01" @default.
• W2368808661 modified "2023-09-26" @default.
• W2368808661 title "Optimization of Agricultural Land Use Structure in Reclamation Area,Yili Prefecture,Xinjiang" @default.
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