重庆市近郊区可调整地类开垦适宜性评价研究

发布时间：2018-04-04 01:43

  本文选题：可调整地类　切入点：评价　出处：《土壤》2017年05期

【摘要】：为了解重庆市近郊区可调整地类基础地力详情,划分可调整地类开垦为耕地的适宜性级别,本文以重庆市九龙坡区的可调整地类为研究对象,借助3S技术,结合野外调查、采样分析等方法获得可调整地类相关信息,运用层次分析法、模糊数学法进行综合评判,用总分值频率曲线法划分地力等级,用四象限法划分适宜性区域。结果表明:九龙坡区2 353.05 hm~2的可调整地类中,肥力一级地、二级地、三级地、四级地和五级地面积分别为403.96、519.47、617.86、625.46和187.29 hm~2,分别占全区可调整地类总面积的17.16%、22.07%、26.25%、26.57%和7.95%;最适宜开垦、基本适宜开垦、较适宜开垦和不适宜开垦的区域面积分别为243.42、983.55、556.64和660.42 hm~2,分别占全区可调整地类总面积的10.34%、37.96%、23.65%和28.05%。评价结果与实际调查结果吻合度较高,因此,可参照本次评价结果对可调整地类进行适当改良,从而为重庆市九龙坡区耕地占补平衡提供依据和参考。
[Abstract]:In order to understand the details of the basic soil fertility of adjustable ground types in the suburbs of Chongqing, and to divide the adjustable land reclamation into the suitable grade of cultivated land, this paper takes the adjustable ground types in Jiulong Slope area of Chongqing as the research object, with the help of 3s technology, combined with the field investigation.The methods of sampling and analysis were used to obtain the relevant information of adjustable ground classes. The analytic hierarchy process (AHP) and the fuzzy mathematics method were used to evaluate the soil force. The total score frequency curve method was used to divide the soil force grade and the four quadrant method was used to divide the suitability area.缁撴灉琛ㄦ槑:涔濋緳鍧″尯2 353.05 hm~2鐨勫彲璋冩暣鍦扮被涓，

本文编号：1707820