| Characteristics and situations of agricultural resources in north of Shanxi,s windy and sandy section along Great Wall were by the numbers analyzed. Natural resources of agriculture were naturally substantial base for continuable development of agriculture. Characteristics and situations of resources had important effects on choosing object and approach of resources,　continuable using and continuable development of agriculture. Characteristics of ground resources, climate resources, water resources, biological resources and mineral resources in north of Shanxi,s windy and sandy section along Great Wall were estimated and developing situations of natural resources were demonstrated. The results were as follows: In north of Shanxi,s windy and sandy section along Great Wall, comparative superiority of agriculturally natural resources was obvious, ground areas and water resources were relatively abundant, physiognomy was flat, light-energy resources were enough and difference in temperature between day and night was large, which benefited dry-matter accumulating and characteristic produce producing. However, it was impossibly reversed that average plowland per man possessived reduced, proportion of inferior resources among natural resources was large, drought pricked up, water contradiction between industry and agriculture extruded, and so on, which badly restricted continuable development of agricultural production. There was contradiction between construction of entironment and development of industry and agriculture in using ground and water resources, which needed to strengthen intensive and high economical utilization in order to provide more expansive space for resuming and stabilization of ecosystem. Carrying capacity of ground and population in north of Shanxi,s windy and sandy section along Great Wall was researched. Research about carrying capacity of ground and population was a piece of all-around work, which regarded ground resources as researchful object and involved resources, environment, population, social economy and their changes, etc. with a view to actuality and future. In fact, it was a kind of dynamic estimate about ratio in some section between producing potential of ground and summation of possibly produced food-amount and average wastage per man in condition of devotion. Based on continuable increase of produce yield and high increasing rate of population since 50 years, the research doped that in YuLin Section banlance about carrying capacity of population in 2010 was +787,300(nutrient type), and windy and sandy section in northwest had the biggest potential, which could achieve +720,600. From above it was basically judged about in 2010 carrying capacity of population and ground resources in north of Shanxi,s windy and sandy section along Great Wall. Based on 2000 in which population was 1,000,000 and naturally increasing rate per year was about 10～15‰, we could predict in 2010 population was 1,104, 622～1,160,541, which increased 104, 622～160,541. Obviously, from a point that durative of agricultural production simply pursued quantitative increase of produce or solved dressing warmly and earring one's fill, generative potential of ground resources in north of Shanxi,s windy and sandy section along Great Wall absolutely could satisfy demand of increasingly local population and there were enough food to satisfy that of increasing population along with quick industrialization. |
