Study On Ecological Agriculture Regionalization Of The Yellow River Delta Based On Remote Sensing And GIS

"Granary in the Bohai Sea Science and technology demonstration project" and the Yellow River Delta Chau efficient ecological economic zone as the national strategy have launched the development of ecological agriculture in the Yellow River Delta into the opportunity, how to develop the sustainable utilization of the existing resources of the Yellow River Delta, the remediation area control problems that exist in the development of is placed in the primary task of the decision-making departments and research institutes. Scientific and rational division of ecological agriculture in the Yellow River Delta region, for the development of agricultural economy, to protect the ecological environment of sustainable development has a long-term and significant significance.Research of Yellow River Delta in recent years, the ecological agriculture development status and problems of, regional natural resources, social economic situation and planning for the future development of standard as analysis of the main data source of ecological agricultural regionalization in the study area, using principal component analysis(PCA) was used to determine the weight of each index, land suitability evaluation results. Combined with the social and economic data of the study area, the two step cluster analysis method was used to carry out the division of ecological agriculture in the Yellow River Delta, and finally the development orientation of ecological agriculture regionalization in the Yellow River delta was obtained. The specific implementation process is as follows:1. On the basis of a lot of literatures, summarizes the domestic and foreign ecological agriculture regionalization methods by of Dongying City Statistical Yearbook in 2015, in the Yellow River Delta(Dongying), ecological agricultural development planning(2011-2020), the data of land use change in Dongying City, Yellow River Delta efficient ecological economic zone in the planning literature search, the data collection. Using the library and the Chinese academic periodical net, this paper determines the suitability evaluation of land use by using principal component analysis method, and uses the two step clustering method to carry out the ecological agriculture regionalization.2. By using the principal component analysis method of the Yellow River Delta land suitability evaluation, using the Delphi method to select land suitable evaluation evaluation parameters, using ArcGIS software digitalization, spatial analysis and other methods, land consolidation suitability evaluation parameters. Using SPSS software, the principal component analysis, evaluation of land suitable for the index weight of the evaluation of principal component and each parameter, using Arc GIS spatial overlay analysis according to the weight, on the Yellow River Delta land, woodland, grassland suitability evaluation. The results showed that in the Yellow River Delta level appropriate farming, forestry, grass land area respectively 1967.71km2, 934.21km2, 2874.63km2, agricultural regionalization of important natural resources factors.3. The two step clustering method was used to analyze the ecological agriculture regionalization of the Yellow River Delta.Confirm by land suitability evaluation results and other parameters zoning, using RS technology, current situation of utilization of land in the study area were classification and extraction, will other zoning parameters using ArcGIS space collation and analysis of digital expression, in all evaluation factors by SPSS cluster analysis, get the result of cluster analysis parameter zoning. By using the leading factor qualitative method, the ecological agriculture area of the Yellow River delta was designated as efficient green planting demonstration area of the Yellow River delta, modern fruit industry demonstration zone in the Yellow River Delta, ecological animal husbandry demonstration area of the Yellow River Delta, ecological fishery demonstration area of the Yellow River Delta, Coastal beach culture and ecological conservation area of the Yellow River Delta, ecological conservation in the Yellow River Delta area,the Yellow River Delta Nature Reserve total of seven categories.