干旱区生态环境知识资源中心(Arid): 西南高原旱三熟地区不同覆盖栽培措施的土壤水分效应

Arid

	西南高原旱三熟地区不同覆盖栽培措施的土壤水分效应
其他题名	The soil water effects of different mulching cultivation patterns in triple cropping dry-land on southwest plateau
	胡兵辉 1; 王维 2; 张红芳 1; 张志勇 1
来源期刊	干旱地区农业研究
ISSN	1000-7601
出版年	2016
卷号	34 期号:4 页码:183-188
中文摘要	在西南高原季节性旱区进行田间试验,研究不同覆盖栽培条件下旱三熟种植模式的农田土壤水分效应。研究表明,秸秆、地膜覆盖尤其是秸秆地膜二元覆盖有明显蓄集和保存土壤水的作用,土壤保蓄水度平均提高60. 63%,覆盖能有效减少田间水分的无效蒸发,平均减少181. 93 mm,使作物蒸腾系数和水分利用效率提高,平均提高19. 84%和23. 5%,而使作物耗水系数减小,平均减少18. 26%,根区是作物耗水与土壤保蓄水的关键区域;农田水分变化沿土层可划分为3个层次,即0 ~ 30 cm土层为土壤水分变化活跃层和土壤贮水变化明显层、30 ~ 80 cm土层为土壤水分变化次活跃层和土壤贮水变化显著层、80 ~ 100 cm土层为土壤水分变化相对稳定层和土壤贮水变化缓慢层。覆盖栽培可促进作物耗水量由田间无效蒸发耗水向有效的田间作物蒸腾耗水转化,使农田水分的有效性显著提升。
英文摘要	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.
中文关键词	旱三熟 ; 覆盖栽培 ; 土壤水分效应 ; 西南高原季节性旱区
英文关键词	triple cropping in dry-land mulching cultivation soil water effects seasonal arid region in southwest plateau
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:5759198
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/234205
作者单位	1.西南林业大学环境科学与工程学院, 昆明, 云南 650224, 中国; 2.西南林业大学计算机与信息学院, 昆明, 云南 650224, 中国
推荐引用方式 GB/T 7714	胡兵辉,王维,张红芳,等. 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],2016,34(4):183-188.
APA	胡兵辉,王维,张红芳,&张志勇.(2016).西南高原旱三熟地区不同覆盖栽培措施的土壤水分效应.干旱地区农业研究,34(4),183-188.
MLA	胡兵辉,et al."西南高原旱三熟地区不同覆盖栽培措施的土壤水分效应".干旱地区农业研究 34.4(2016):183-188.