干旱区生态环境知识资源中心(Arid): 咸水滴灌下塔克拉玛干沙漠腹地人工绿地土壤水分三维时空动态

Arid

	咸水滴灌下塔克拉玛干沙漠腹地人工绿地土壤水分三维时空动态
其他题名	Three-dimension temporal and spatial dynamics of soil water for the artificial vegetation in the center of Taklimakan desert under saline water drip-irrigation
	丁新原 1; 周智彬 1; 徐新文2 ; 雷加强2 ; 鲁晶晶 1; 马学喜 2; 冯筱 2
来源期刊	应用生态学报
ISSN	1001-9332
出版年	2015
卷号	26 期号:9 页码:2600-2608
中文摘要	通过对咸水滴灌下塔克拉玛干沙漠腹地人工绿地的土壤水分进行实时监测,研究了4-7月各灌水周期内土壤水平0?60 cm和垂直0?120 cm空间距离范围内的水分三维时空变化.结果表明:咸水滴灌下绿地土壤水分表现出周期性的动态规律,且在忽略降雨时,这种规律随时间变化未表现出明显差异;非降雨与降雨条件下的土壤水分时空变化差异显著.土壤含水量在4月偏高,7月偏低,在有明显降雨的6月最高;土壤水分在不同时间尺度上的变化特征不同,但整体随月变化(4-7月)呈下降趋势,随日变化(1~15 d)呈幂函数递减规律,且在周期内先后经历3个不同变化阶段.土壤水分在水平空间距离上呈一元线性递减,在垂直空间上近似表现为双峰曲线,且在20 cm土层处有一个显著峰值;土壤水分空间分布特征取决于土壤自身的物理性质.
英文摘要	Three-dimension temporal and spatial dynamics of the soil water characteristics during four irrigating cycles of months from April to July for the artificial vegetation in the center of Taklimakan Desert under saline water drip-irrigation had been analyzed by timely measuring the soil water content in horizontal and vertical distances 60 cm and 120 cm away from the irrigating drips, respectively. Periodic spatial and temporal variations of soil water content were observed. When the precipitation effect was not considered,there were no significant differences in the characteristics of soil water among the irrigation intervals in different months,while discrepancies were obvious in the temporal and spatial changes of soil moisture content under the conditions of rainfall and non-rainfall. When it referred to the temporal changes of soil water, it was a little higher in April but a bit lower in July, and the soil water content in June was the highest among four months because some remarkable events of precipitation happened in this month. However, as a whole, the content of soil moisture was reduced as months (from April to July) went on and it took a decreasing tendency along with days (1-15 d) following a power function. Meanwhile, the characteristics of soil water content displayed three changeable stages in an irrigation interval. When it referred to the spatial distributions of soil water,the average content of soil moisture was reduced along with the horizontal distance following a linear regression function,and varied with double peaks along with the vertical distance. In addition,the spatial distribution characteristics of the soil water were not influenced by the factors of precipitation and irrigating time but the physical properties of soil.
中文关键词	咸水滴灌 ; 土壤水分动态 ; 三维时空 ; 人工绿地 ; 塔克拉玛干沙漠
英文关键词	saline water drip-irrigation dynamics of soil water three-dimensional space and time artificial vegetation Taklimakan Desert
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:5510040
来源机构	中国科学院新疆生态与地理研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/233580
作者单位	1.中国科学院新疆生态与地理研究所, 荒漠与绿洲生态国家重点实验室, 乌鲁木齐, 新疆 830011, 中国; 2.中国科学院新疆生态与地理研究所, 乌鲁木齐, 新疆 830011, 中国
推荐引用方式 GB/T 7714	丁新原,周智彬,徐新文,等. 咸水滴灌下塔克拉玛干沙漠腹地人工绿地土壤水分三维时空动态[J]. 中国科学院新疆生态与地理研究所,2015,26(9):2600-2608.
APA	丁新原.,周智彬.,徐新文.,雷加强.,鲁晶晶.,...&冯筱.(2015).咸水滴灌下塔克拉玛干沙漠腹地人工绿地土壤水分三维时空动态.应用生态学报,26(9),2600-2608.
MLA	丁新原,et al."咸水滴灌下塔克拉玛干沙漠腹地人工绿地土壤水分三维时空动态".应用生态学报 26.9(2015):2600-2608.