Study On The Optimized Utilization Pattern Of Rangeland Resources Based On 3S

Rangeland resources play a very important role in the existence and development of the society. Low utilization efficiency and serious degradation confine its sustainable development. So how to use rangeland resources in rational time and space becomes very significant. At present, the renovation speed of rangeland resource information does not adapt to the requirement of production, the production profits of stockbreeding and cultivation are lower, and the cooperation of them is not perfect etc. These aspects seriously limit to establish and implement the optimized time-space utilization pattern of rangeland resources. In the thesis, Zhaosu county, the rangeland-husbandry area in the western part of the northern slope in the Tianshan Mountains, is selected as the representative area to study the optimized utilization pattern of rangeland resources. Firstly, the idea of landscape ecology pattern is integrated into rangeland classification to research the distributing pattern of rangeland resources, and the rangeland resources at Zhaosu county are classified into 5 types, 13 sub-types and 22 third-types, which give facilities for using and investigating rangeland resources and discuss the methods of rapidly and exactly investigating rangeland resources based on 3S. Secondly, the methods of Landscape Pattern Characteristic Analysis and Forage-animal Balance are adopted to analyze the utilization situation of rangeland resources. And then, guided by the theories of landscape ecology, rangeland resources and rangeland ecological exchange, we put forward and implement the feeding system which is grazing for 155d in warm-season and yard feeding for 210d in cold-season, and get the utilization pattern of rangeland resources which includes 3 sections (decreased-grazing rangeland, non-grazing rangeland and warm-grazing rangeland) and 4 supplemental sections (decreased-cultivating grassland, mowed rangeland, artificial grassland and yard-feeding place). The measure of gradient-grazing in the warm-grazing land is planed, and it can hold 144000 sheep units. These measures would protect and renovate rangeland resources. The research also optimizes the coupling system of stockbreeding and cultivation, and three projects are put forward. Among the three projects, the project â…¢ is the most optimized one, which makes livestock production changed from one spring-lamp to three lamps every two years, the plantation scale of crops:oil plants:forages is changed from 3.90:5.94:0.16 to 0.31:0.38:9.31. The study shows that yard feeding can be realized, per capita increases 76.34%, and the optimized utilization pattern of rangeland resource is confirmed. The ecological and economic as well as society benefit would be evidently increased.