基于AHP决策分析方法的石河子市土地适宜性评价

Based on the AHP method of land suitability appraisal in Shihezi

对石河子市土地利用现状适宜性分析;结果显示,在7个农业单位中,宜农土地在石总场和石河子乡分布最广,所占面积最大,其构成比例分别为43.4%和36.4%,而在区玛管处没有分布,农科院分布的面积也仅有0.9hm2;宜林土地的分布趋势与宜农土地类似,在石总场和石河子乡分布面积最大,其构成比例分别为49.6%和24.1%;宜牧地类在石河子乡占有最大比例75.8%,而在农科院所占面积最小,其比例仅为0.1%;宜园地在石总场和152团所占比例分别位居前两位达54.7%和27.8%,而在区玛管处没有分布;居民工矿用地在石河子市区分布面积最广,占有最大比例55.4%,而在区玛管处分布面积最小,仅为14.3hm2。从各地类土地组成结构来看,宜农地类所占的比重为48.66%,分布比较集中,其中一、二等地占84.61%,土地质量较好,而宜农荒地仅占土地总面积的4.81%,土地后备资源明显不足;宜林地类仅占土地总面积的5.75%,且分布较为集中;在土地的利用中,农、林(含园)、牧业用地比例为7.92:1:2.17,农业分布结构不合理。

this article through to the Shihezi land utilization present situation suitability analysis, demonstrated finally： in Shihezi＇s seven agricultural unit, the suitable agricultural land is broadest in the stone resultant field and the Shihezi township distribution, occupies the area to be biggest, its constitution proportion respectively is 43.4% and 36.4%, but has not distributed in area Ma Guanchu, the Institute of Agricultural Sciences distributed area also only has 0.9 hectare; The suitable for forestry land＇s distributed tendency and the suitable agricultural land are similar, is biggest in the stone resultant field and the Shihezi township dispersal area, its constitution proportion respectively is 49.6% and 24.1%; The suitable shielding class holds the maximum proportion in the Shihezi township 75.8%, but occupies the area in Institute of Agricultural Sciences to be smallest, its proportion is only 0.1%; The suitable field accounts for the proportion in the stone resultant field and 152 groups to be situated first two to reach 54.7% separately and 27.8%, but has not distributed in area Ma Guanchu; The resident industry and mining land is broadest in the Shihezi urban district dispersal area, holds the maximum proportion 55.4%, but accumulates in the area Ma tube punishment cloth cover is smallest, is only 14.3 hectares. Looking from the reg/onal kind of land composition structure, the proportion which the suitable farmland class institute occupies is 48.66%, the distribution is quite centralized, one, second-rate accounts for 84.61%, the land quality is good, but the suitable agricultural open land only accounts for the total acreage 4.81%, land reserve resources obvious insufficient; The suitable /and class only accounts for the total acreage 5.75%, and distributes is more centralized; In the land use, the agriculture, the forest （including garden）, the animal husbandry land proportion are 7.92：1：2.17, the agricultural distributed structure is unreasonable.