干旱区生态环境知识资源中心(Arid): 黑河中游绿洲荒漠过渡带降水-土壤水-地下水相关性分析

Arid

	黑河中游绿洲荒漠过渡带降水-土壤水-地下水相关性分析
其他题名	Correlation analysis among precipitation and soil water and groundwater in oasis-desert transitional belt in Heihe river middle reaches
	牛赟; 刘建海; 张虎; 边彪; 赵国生
来源期刊	中南林业科技大学学报
ISSN	1673-923X
出版年	2016
卷号	36 期号:11 页码:59-64
中文摘要	土地荒漠化是当前世界十大环境问题之一,对人类的生存和发展构成了严重威胁。本文在黑河中游绿洲荒漠过渡带建立荒漠化定位监测站,通过降水、土壤水、地下水长期定位监测,采用特征参数算法、相关和多元回归分析方法,研究了降水-土壤水-地下水的年内年际变化特征及相关回归模型。结果表明:(1)降水、空气湿度、水面蒸发、5 cm土壤体积含水率、地下水埋深近6年均分别为135.92 mm、46.02%、1 108.10 mm、3.46%、265.31 cm;降水、水面蒸发、地下水埋深呈波动性增加趋势,5 cm土壤体积含水率和空气湿度呈波动性略有减少趋势。(2)降水量、5 cm土壤体积含水率和地下水埋深年内变化步调基本一致,而水面蒸发和空气湿度年内变化不一致。(3)降水、5 cm土壤体积含水率、地下水埋深相互关系属高度相关;5 cm土壤体积含率与地下水埋深属于高度正相关。(4)降水、土壤水、地下水模型拟合属高度相关,拟合模型分别可预测降水、土壤水、地下水变化的86.2%、88.7%、80.7%,预测准确率分别可达83.1%、86.2%、76.4%,预测误差平均分别为5.69 mm、0.56%、81.58 cm,预测水平在a=0.001 (P< 0.001)上极显著,模型偏回归系数显著水平a分别为0.50、0.25、0.90,模型通过了R~2拟合检验、F方差检验和t偏回归检验。研究成果可为荒漠化防治中的水资源管理和评估提供科技支撑和参考数据。
英文摘要	Land desertification is one of the world’s top ten environmental problems, and constitutes the serious threat for human survival and development. The desertification monitoring stations had been set up in oasis-desert transitional belt in Heihe river middle reaches and precipitation, soil water, groundwater had been monitored for a long term ,and the algorithm of characteristic parameters, correlation and multiple regression analysis method had been used, and variation characteristics of precipitation and soil water and groundwater interannual and annual variance had been studied. Results show that: (1) The average annual precipitation and air humidity and water evaporation and the soil moisture content in 5 cm depth and groundwater depth for 6 years respectively were 135.92 mm and 46.02% and 1108.10 mm and 3.46% and 265.31 cm in interannual variance, and variety range from big to small in sequence was precipitation and water evaporation and groundwater depth and the soil moisture content in 5 cm depth and air humidity. The precipitation and water evaporation and groundwater depth showed a trend of volatility increase, but the soil moisture content in 5 cm depth, humidity of air volume showed a trend of slightly volatility decrease from 2009 year t 2014 year in n the research area. (2) The annual variance pace of precipitation, soil moisture content in 5 cm depth and groundwater depth were resemblance, but the annual variance pace water evaporation and air humidity were different.(3) The precipitation and soil moisture content in 5 cm depth and groundwater depth all were highly related. (4) The regression model of precipitation and and soil moisture and groundwater depth had been passed by R2 test and F and t test. Through model analysis, the all regression model was better fitting effect, and the variation of predicted value of precipitation and soil moisture and groundwater depth respectively was 86.2% and 88.7% and 80.7%, and average accuracy could reach above 83.1% and 86.2% and 76.4%. The average prediction error respectively was 5.69 mm and 0.56% and 81.58 cm. Forecast level in 0.001 (p < 0.001) was significantly, and partial regression coefficient of model significance level were respectively 0.50, 0.25, 0.90,The regression model of soil water and precipitation and groundwater had been passed by R~2 test, F test and t test,and it was applicable and expandable. This study could provide technology support and reference data for water resource management and evaluation of desertification control.
中文关键词	降水 ; 土壤水 ; 地下水 ; 荒漠化防治 ; 黑河中游
英文关键词	precipitation soil water groundwater desertification control Heihe river middle reaches
语种	中文
国家	中国
收录类别	CSCD
WOS类目	FORESTRY ; AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Forestry ; Agriculture
CSCD记录号	CSCD:5819605
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/235562
作者单位	甘肃张掖生态科学研究院甘肃省祁连山生态科技创新服务平台, 张掖, 甘肃 734000, 中国
推荐引用方式 GB/T 7714	牛赟,刘建海,张虎,等. 黑河中游绿洲荒漠过渡带降水-土壤水-地下水相关性分析[J],2016,36(11):59-64.
APA	牛赟,刘建海,张虎,边彪,&赵国生.(2016).黑河中游绿洲荒漠过渡带降水-土壤水-地下水相关性分析.中南林业科技大学学报,36(11),59-64.
MLA	牛赟,et al."黑河中游绿洲荒漠过渡带降水-土壤水-地下水相关性分析".中南林业科技大学学报 36.11(2016):59-64.