干旱区生态环境知识资源中心(Arid): 半干旱地区海水灌溉下滨海盐土水分特征的研究

Arid

	半干旱地区海水灌溉下滨海盐土水分特征的研究
其他题名	Study on moisture characteristics of marine saline soil irrigated with seawater in semiarid region
	刘兆普; 陈铭达; 邓力群; 沈其荣; 赵耕毛; 王建华; 王洪军
来源期刊	南京农业大学学报
ISSN	1000-2030
出版年	2003
卷号	26 期号:1 页码:41-45
中文摘要	在山东莱州进行海水与淡水混合灌溉田间小区试验，发现高海水比例灌溉在干旱，半干旱地区具有明显的保水作用，海水灌溉下土壤水分变化特征如下：（1）在半干旱地区，0-50cm土体土壤含水量主要受灌溉，降雨及蒸发等因素的影响，但从表层到下层，变化越来越小；随着灌溉水中海水比例的增加。0-50cm土体土壤水吸力逐渐降低，土壤含水量逐渐提高，土壤保水能力提高了40%。（2）不同比例海淡水混灌（A.0:1;B.1:9;C.1:3;D.1:1)，使不同剖面的土壤水吸力产生明显的变化；除30cm土层土壤水吸力以处理B最大外，5，15和50cm土层土壤水吸力大小均依次为处理A、B、C、D。（3）各灌溉处理6-8h后土壤水吸力均下降到最低点；70-80h，在5-15cm土层A、B两处理土壤水吸力增幅变大；灌溉后48h处理A、B与C、D与5cm土层土壤水吸力开始产生显著差异。随着时间的推移。差异加大，而15cm土层，这种差异始于灌溉后60h,30cm土层各处理间土壤水吸力在灌溉后7-8d内基本一致。
英文摘要	The field experiments of irrigation with seawater mixed with fresh water were carried out in Laizhou, Shandong Province. The results showed that high proportion of seawater irrigated had a function of water conservation in arid and semiarid region. Characteristics of the soil moisture irrigated with seawater were as follows: ( 1) In semiarid region, the soil moisture content in 0 - 50 cm soil layer was affected mainly by irrigation, rainfall and evaporation etc. But this effect became smaller with the depth of soil. As the proportion of seawater increasing, soil water suction in 0 - 50 cm soil profile became lower while soil moisture content increased gradually, and the capacity of water conservation increased 40%~60% or so. (2) The soil water suction in different soil layers changed significantly with the proportions of seawater. The soil water suction in 5, 15 and 50 cm soil layer of different treat-ment was in following order: A, B, C, D, except in 30 cm soil layer, B got the highest water suction. ( 3 ) All of the soil water suction decreased to the smallest in 6 -8 hours after irrigation. The soil water suction in the 5 -15 cm of soil layer produced high increase in 70 - 80 hours after irrigation. The soil water suction in 5 cm soil layer of the treatments of A and B differed evidently from C and D in 48 hours after irrigation. As the time prolonged, the difference became larger . This case was also found in 15 cm of soil layer in 60 hours after irrigation. The soil water suction in every treatment of 30 cm soil layer was almost identical.
中文关键词	半干旱地区 ; 海水灌溉 ; 滨海盐水 ; 水分特征
英文关键词	semiarid region seawater irrigation soil moisture characteristic
类型	Article
语种	中文
国家	中国
收录类别	CSCD
WOS类目	Agriculture
WOS研究方向	Agriculture
CSCD记录号	CSCD:1289840
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/204205
作者单位	刘兆普, 南京农业大学资源与环境科学学院, 南京, 江苏 210095, 中国.; 陈铭达, 南京农业大学资源与环境科学学院, 南京, 江苏 210095, 中国.; 邓力群, 南京农业大学资源与环境科学学院, 南京, 江苏 210095, 中国.; 沈其荣, 南京农业大学资源与环境科学学院, 南京, 江苏 210095, 中国.; 赵耕毛, 南京农业大学资源与环境科学学院, 南京, 江苏 210095, 中国.; 王建华, 南京农业大学山东莱州863中试基地, 莱州, 山东 261400, 中国.; 王洪军, 南京农业大学山东莱州863中试基地, 莱州, 山东 261400, 中国.
推荐引用方式 GB/T 7714	刘兆普,陈铭达,邓力群,等. 半干旱地区海水灌溉下滨海盐土水分特征的研究[J],2003,26(1):41-45.
APA	刘兆普.,陈铭达.,邓力群.,沈其荣.,赵耕毛.,...&王洪军.(2003).半干旱地区海水灌溉下滨海盐土水分特征的研究.南京农业大学学报,26(1),41-45.
MLA	刘兆普,et al."半干旱地区海水灌溉下滨海盐土水分特征的研究".南京农业大学学报 26.1(2003):41-45.