CAJ | 학술논문

以青海省黄南地区和海南地区为例,详细论述了"3S"技术与地面调查相结合的草原监测技术路线流程;用2007年产草量观测资料,经GPS定位,与MODIS植被指数建立地上生物量反演模型,同时,利用粮食、青稞等农作物产量与林地面积资料,估算了农林副产品载畜量,分析了黄南地区和海南地区总体牲畜承载力及超载情况.结果表明:黄南地区和海南地区的总体载畜量分别为302.82万和386.25万个羊单位,超载率分别为67.48%和125.65%,两地区平均超载率为96.57%,说明这2个地区应适当降低牲畜数量或加大补饲力度,以减轻对当地草原生态的压力.提出最大超载率和平均超载率的概念,把两者结合起来,以便综合地反映研究区放牧超载情况.建议构建和开发基于Web-GIS的草原监测网站,以期为<草原法>的执行提供依据,促进我国草原生态建设和草原恢复的发展.
이청해성황남지구화해남지구위례,상세논술료"3S"기술여지면조사상결합적초원감측기술로선류정;용2007년산초량관측자료,경GPS정위,여MODIS식피지수건입지상생물량반연모형,동시,이용양식、청과등농작물산량여임지면적자료,고산료농림부산품재축량,분석료황남지구화해남지구총체생축승재력급초재정황.결과표명:황남지구화해남지구적총체재축량분별위302.82만화386.25만개양단위,초재솔분별위67.48%화125.65%,량지구평균초재솔위96.57%,설명저2개지구응괄당강저생축수량혹가대보사력도,이감경대당지초원생태적압력.제출최대초재솔화평균초재솔적개념,파량자결합기래,이편종합지반영연구구방목초재정황.건의구건화개발기우Web-GIS적초원감측망참,이기위<초원법>적집행제공의거,촉진아국초원생태건설화초원회복적발전.
The technological ways and process of grassland monitoring with the "3S" technology combined ground surveys was intensitively analyzed in this paper based on a example in the grassland of Huangnan and Hainan in Qinghai Province. The ground biomass inversion model between observational data and MODIS-Vegetation-Index was established with GPS positioning and grass yield in 2007. After the establishment of the livestock carrying capacity of the by-products from factory and forestry using the information of crop production of wheat, barley, the forest land area etc, the total livestock carrying capacity and the overloading in the both regions was analyzed. The results showed that the overall carrying capacities were 3 028 200 and 3 862 500 sheep units, which overloading rates were as high as 67.48% and 125.65%, respectively, and the average overloading rates of the both were 96.57%. These indicate that the number of livestock should be reduce, or feeding intensity should be increase in the two areas to reduce the pressure on the local ecological carrying capacity. Furthermore, an opening and interactive website, Grassland Monitoring Website (GMW), should be produced. It is helpful to concern the concept of Greatest Rate of Overloading, and Average Rate of Overloading, to balance the both, and to implement to Grassland Law. It is also necessary to the sustainable development of grass industry, China's grassland eco-construction and restoration of grassland.