高寒地区不同耕作年限的土壤肥力质量评价  

Assessment of fertility quality on the greenhouse soil in different cultivation years in alpine regions

作　　者：赵震虎[1] 李亚军[2] 那伟[3] 马巍[3] 李忠和[3] 李平 祝延立[3] 刘洪亮 ZHAO Zhen-hu;LI Ya-jun;NA Wei;MA Wei;LI Zhong-he;LI Ping;ZHU Yan-li;LIU Hong-liang(Harbin Academy of Agricultural Science(HAAS),Harbin 150000,China;School of Mathematics,Jilin University,Changchun 130012,China;Jilin Academy of Agricultural Sciences,Changchun 130033,China;Tibet Zangjia Ecological Science&Technology Development Co.Ltd,Linzhi 860000,China)

机构地区：[1]哈尔滨市农业科学院,黑龙江哈尔滨150000 [2]吉林大学数学学院,吉林长春130012 [3]吉林省农业科学院,吉林长春130033 [4]西藏藏迦生态科技发展有限公司,西藏林芝860000

出　　处：《西南民族大学学报（自然科学版）》2020年第5期441-447,共7页Journal of Southwest Minzu University(Natural Science Edition)

基　　金：国家重点研发计划(2016YFD0300504-4);哈尔滨创新创业人才项目“刺五加人工驯化栽培研究与技术应用”资助。

摘　　要：在高海拔地区采取合理的土壤培肥措施和优化土壤管理对粮食增产具有重要意义,采用投影寻踪等级评价模型对西藏地区不同耕作年限的大棚土壤肥力质量进行综合评价.结果表明,大棚土壤肥力质量随着耕作年限的增加而逐渐提高,耕作1年的表层土壤肥力质量由Ⅴ级上升为Ⅱ级;耕作3年的表层土壤质量仍属于Ⅱ级;耕作5年的表层土壤肥力质量上升到Ⅰ级.单一指标对土壤肥力质量贡献结果表明,土壤全钾和CEC对土壤肥力质量等级评价影响程度较大,今后应注意采取对应措施保持土壤质量.It is of great significance to take reasonable measures of soil fertility and to optimize soil management for grain production in high altitude areas.The projection pursuit grade evaluation model was used for the evaluation of soil fertility quality in different years of cultivation in the greenhouse of Tibet,in order to provide theoretical basis and specific production guidance for the rational adoption of soil fertility measures and the optimization of soil management in high altitude areas.The results showed that the soil fertility quality in the plastic house increased gradually with the extension of cultivation years,the quality of surface soil fertility increased from grade"V"to grade"II"after one year’s cultivation in Tibet;the quality of surface soil still belonged to grade II after three years of cultivation,but the quality of surface soil fertility increased to grade I after five years of cultivation.The results of single index contribution on soil fertility quality in the plastic house also showed that the total potassium and CEC had obvious effects on soil fertility quality grade evaluation,and subsequently,corresponding cultivation measures should be taken to keep soil quality in future.

关 键 词：土壤肥力质量 投影寻踪 实码加速 遗传算法 

分 类 号：S158[农业科学—土壤学]