摘要
小麦是陕西省商南县重要的粮食作物,进行该区域小麦种植区划,对因地制宜种植小麦、优化区域布局有重要意义。利用GIS技术、县域耕地资源管理信息系统和层次分析法,对商南县小麦种植进行了生态适宜性评价。用专家经验法筛选各生态因子评价指标,建立了商南县小麦生态适宜性评价指标体系;将层次分析法和模糊评价法运用于各指标权重的定量计算,采用地理信息系统软件ArcGIS9.3的叠加分析功能,得到商南县小麦种植生态适宜性评价图。结果表明:高度适宜小麦种植的农田有8323.97 hm^2,占耕地面积的33.50%,适宜的有10557.46 hm^2,占耕地面积的42.49%,这两类耕地主要分布于本区域的浅山与丘陵地带,占总耕地面积的75%以上,是商南县耕地的主体;同时,本区域内余下的耕地主要分布在中山地貌区,包括勉强适宜小麦种植、不适宜耕作的耕地两种,分别有4423.41 hm^2和1543.43 hm^2,仅占耕地总面积的17.80%和6.21%。因此,通过对商南县小麦种植环境的统计和分析,总结了当地生态适应度分布的规律并绘制了空间分布图,从而为商南县在进行小麦或同类作物种植时,进行合理布局与规划提供科学依据。
Wheat is an important food crop in Shangnan,Shaanxi,wheat planting with reasonable area distribution is essential to wheat growth and optimization of regional layout.Ecological suitability evaluation of wheat growth in Shangnan was conducted by GIS technology,county cultivated land resources management information system and analytic hierarchy process.Evaluation indexes of ecological factors were screened out by the method of expert experience,and the ecological suitability evaluation index system of wheat in Shangnan was established;analytic hierarchy process and fuzzy evaluation method were applied to the quantitative calculation of the index weight,Shangnan wheat ecological suitability assessment map was obtained by the superposition analysis function of geographic information system software ArcGIS9.3.The results showed that the highly suitable area of wheat was 8323.97 hm2 ,which accounted for 33.50% .suitable area was 10557.46 hm2 ,which accounted for 42.49%,these two types of cultivated land was mainly distributed in shallow mountain and hilly land,which accounted for more than 75% of the total arable land area,and it was the main part of the cultivated land in Shangnan.At the same time,the rest of the cultivated land in this area was mainly distributed in Zhongshan landscape area,included barely suitable area and unsuitable area for wheat growth,which was 4423.41 hm2 and 1543.43 hm2 ,only accounted for 17.80% and 6.21%,respectively.The local ecological fitness distribution regularity and spatial distribution were summarized and planned through the statistics and analysis of Shangnan wheat planting environment.The results provided a scientific basis for rational layout and planning in Shangnan in wheat or similar crop planting management.
作者
袁媛
瑚波
雷蕾
常庆瑞
Yuan Yuan Hu Bo Lei Lei Chang Qingrui(The Meteorological Bureau of Shangluo City, Shaanxi Province, Shangluo Shaanxi 726000 College of Natural Resources and Environment, Northwest A＆F University, Yangling Shaanxi 712100)
出处
《中国农学通报》
2017年第21期7-14,共8页
Chinese Agricultural Science Bulletin
基金
国家863计划课题"作物生长信息的快递获取与解析技术"(2013AA102401)
国家"十二五"科技支撑计划"旱区多遥感平台农田信息精准获取技术集成与应用"(2012BAH29B04)
陕西省耕地地力调查与质量评价项目
关键词
小麦
商南县
地理信息系统
生态适宜性
种植区划
wheat
Shangnan
geographic information system
ecological suitability
planting regionalization
