干旱地区农业研究2016，Vol.34Issue(4)：183-188,6.DOI:10.7606/j.issn.1000-7601.2016.04.28
西南高原“旱三熟”地区不同覆盖栽培措施的土壤水分效应
The soil water effects of different mulching cultivation patterns in triple cropping dry-land on southwest plateau
摘要
Abstract
Based on mulching experiments through triple cropping in dry-land of seasonal arid region of southwest plateau ,the water effects of different treatments were studied .The results showed that straw and plastic film mulching played a very important role in increasing and reserving soil water .The dual mulching mode with plastic film and straw displayed prominent function ,root region was proved to be key region on crop consuming water and soil reserving water . The changes of farmland water were divided into 3 layers:0~30 cm soil layer that was the active changing layer for soil water content and the obvious changing layer for reserving soil water ,30~80 cm soil layer that was the subordinate active changing layer for soil water content and the significant changing layer for reserving soil water ,and 80~100 cm soil layer that was the relative steady changing layer for soil water content and the relative general changing layer for reserving soil water .Furthermore ,mulching cultivation could impel the crop consuming water converted into effective crop transpiration consuming water from useless evaporation consuming water ,and the availability of farmland water was promoted clearly . Thus ,the study on water effects of mulching through triple cropping patterns in dry-land will allow the enhancements of multiple crop index ,water use efficiency and water production potentiality in seasonal arid area of southwest plateau .关键词
旱三熟/覆盖栽培/土壤水分效应/西南高原季节性旱区Key words
triple cropping in dry-land/mulching cultivation/soil water effects/seasonal arid region in southwest plateau分类
农业科技引用本文复制引用
胡兵辉,王维,张红芳,张志勇..西南高原“旱三熟”地区不同覆盖栽培措施的土壤水分效应[J].干旱地区农业研究,2016,34(4):183-188,6.基金项目
@国家自然科学基金项目（31201173）；云南省高校优势特色重点学科（生态学）建设项目；西南林业大学科研启动基金项目 （）
