Suitable Region for Flue-cured Tobacco (Nicotiana glauca L.) Planting Based on Spatial Scene Similar

来源 :农业科学与技术:英文版 | 被引量 : 0次 | 上传用户:chuanguowuhen
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
[Objective] The aim was to establish a model based on spatial scene similarity, for which soil, slope, transport, water conservancy, light, social economic factors in suitable planting areas were all considered. A new suitable planting area of flue-cured tobacco was determined by comparison and analysis, with consideration of excellent area. [Method] Totaling thirty natural factors were chosen, which were clas- sified into nine categories, from Longpeng Town (LP) and Shaochong Town (SC) in Shiping County in Honghe Hani and Yi Autonomous Prefecture. [Result] According to weights, the factors from high to low were as follows: soil〉light〉elevation〉slope〉 water conservancy〉transport〉baking facility〉planting plans over the years〉others. The similarity of geographical conditions in the area was 0.894 3, which indicated that the planting conditions in the two regions are similar. If farmer population in unit area, farmland quantity for individual farmer, labors in every household, activity in planting flue-cured tobacco and work of local instructor were considered, the weights of different factors were as follows: farmer population in unit area〉farmland quantity for individual farmer〉farmers' activity in planting flue-cured tobacco〉educational back- ground〉labor force in every household〉instructor〉population of farmers' children at- tending school. The similarity of geographical conditions was 0.703 1, which indicated that it is none-natural factors that influence yield and quality of flue-cured tobacco. [Conclusion] According to analysis on suitable planting area of flue-cured tobacco based on assessment of spatial scene similarity, similarity of growing conditions in two spatial scenes can be analyzed and evaluated, which would promote further exploration on, influencing factors and effects on tobacco production.
其他文献
针对农村饮水安全项目的建后管理过程中采取的措施和取得的经验,从管理、运行等方面进行了总结。进一步推进了农村饮水安全运行管理,对提高农村饮水工程管理模式及效益发挥有
笑笑最近刚从有理数国和整式国回来,时时还会记起好朋友0与x的热情款待,对两国的奇事美景也是难以忘怀,每日里与小朋友们聊起来,乐此不疲,也算是故地重游、重温旧梦了:今天天
1.根据式子“我们已经×45+25=是是是是是”可知,等号右边“是是是是是”代表的数的末位数字要么是0,要么是5,又由题意可知应为5.再观察、比较下面几个式子等号左边,可知从上
一、晶体和非晶体的定义有固定的熔化温度的固体叫做晶体,海波、食盐、冰、明矾、萘和各种金属等都是晶体.晶体熔化时的温度叫熔点,同种晶体的熔点和凝固点是相同的,如冰的熔
让我们走进王老师的课堂,一起来探索求任意多个正整数的和的通用公式.
面对干旱季节带来的影响,联合国麾下气象单位表示,各地干旱灾情频传,显示各国政府应推动全国型的管理政策,以因应及解决大自然对粮食、水、人民健康与能源造成的威胁。
本文提出在对外汉语教学中实行生动性教学,并给出确切涵义。文章根据汉语教学现状提出几个问题,从手段方法、必要性、理论指导和教学法等方面给出解决策略。从手段或方法角度
本文在AFS一830原子荧光、碱度、NaBH。浓度、Hcl浓度等均在最佳条件下,研究了碱性体系氢化物发生原子荧光光谱法测定水系沉积物中砷、锑、铋的分析方法。经国家一级标准物质
本文从足球脚背正面踢球教学三阶段分析,能更好的掌握、熟练、提高足球脚背正面踢球技术。
喇嘛甸油田二类油层聚合物驱已推广三个区块,但在实际生产中发现高浓度聚合物在注入过程中出现了压力上升,注入困难等一些问题。为进一步研究高浓度聚合物驱在各类油层的的适应