干旱区生态环境知识资源中心(Arid): 砒砂岩区油松的茎流特征及其与环境因子的关系

Arid

	砒砂岩区油松的茎流特征及其与环境因子的关系
其他题名	Sap Flow Characteristics of Pinus tabulaeformis in Soft Rock Area and Its Relationship with Environmental Factors
	韩兆敏; 姚云峰; 郭月峰; 祁伟; 尉迟文思; 刘龙
来源期刊	生态环境学报
ISSN	1674-5906
出版年	2017
卷号	26 期号:7 页码:1145-1151
中文摘要	植物如何有效地利用干旱地区的水分资源日渐成为研究热点。砒砂岩区处于全球环境脆弱敏感带,为深入了解该区油松(Pinus tabuliformis)的水分利用特征,选取内蒙古鄂尔多斯市准格尔旗圪秋沟小流域砒砂岩区为试验区,在连续典型晴天内,通过对油松茎流速率及周围环境因子进行24 h连续监测,得出油松的茎流规律及影响茎流速率的环境因子数据,并对有关数据进行分析。结果表明,(1)油松的茎流速率表现为明显的昼夜变化规律,且呈单峰型曲线。白天茎流速率的变幅较大,夜间变化相对稳定。(2)油松茎流速率在8月份的日变化表现为清晨4:00-5:00开始启动,中午11:00-13:00达到峰值,随后连续下降,晚上20:00-21:00达到低谷。(3)环境因子中影响油松茎流(Y)的环境因子依次是太阳辐射强度(X1)、空气相对湿度(X_2)、空气温度(X_3)、平均土壤温度。相关系数分别为0.962、-0.861、0.758和0.234。对其进行多元逐步回归可得到适合于砒砂岩区油松茎流速率的数学模型为Y=29.004+0.374X1-1.091X_2-0.167X_3,R~2=0.952。目前对于植物茎流规律特征及植物水分利用特征的研究大都集中在水肥充足的地区,而在砒砂岩地区的研究成果还鲜有报道。该研究结果可为砒砂岩区植物水分供求关系的进一步研究提供数据支撑,也可为砒砂岩区植物资源的水分有效利用管理提供理论依据。
英文摘要	The soft sandstone area in the global is located in the zone where the environment is fragile and sensitive. How to utilize the water resources of arid areas effectively is becoming the hotspot of today’s research. In order to understand the water use characteristics of Pinus tabulaeformis in the soft rock area, we chose Geqiugou small watershed in Zhungeer banner, Ordos, Inner Mongolia as the study area. We monitored the stem flow rate of Pinus tabulaeformis and the surrounding environmental factors by 24 hours in continuous typical sunny day, and then analyzed the correlation of stem flow and environmental factors, and did an overall regression analysis. The results showed that, (1) The stem flow rate of Pinus tabulaeformis showed a obvious diurnal variation in the form of single peak curve. The stem flow changed greatly in the day time, but was stable at the night. (2) The stem flow diurnal variation of Pinus tabulaeformis in August started at 4: 00-5:00 am, reached the peak at 11:00-13:00, and then decreased continuously to the lowest at 20:00-21:00. (3) The environmental factors influenced the stem flow were solar radiation intensity (X1), atmospheric relative humidity (X_2), air temperature (X_3), soil temperature. The correlation coefficients are 0.962, -0.861, 0.758 and 0.234 respectively. After carrying out multiple stepwise regression for several times, an adaptive equation was established to show the stem flow rate of Pinus tabulaeformis in the soft rock area: Y=29.004+0.374X1-1.091X_2-0.167X_3, R~2=0.952. For now, the researches on vegetarian stem flow mainly focused on the place where water and fertilizer were plenty, but less on soft rock area. The above research results can provide data support for further study on the relationship of water supply and demand of vegetarian, and can provide theoretical basis for the management of effective water use of plants in the soft rock area.
中文关键词	砒砂岩 ; 油松 ; 茎流速率 ; 环境因子
英文关键词	arsenic sandstone Pinus tabulaeformis carr sap flow rate environmental factors
类型	Article
语种	中文
国家	中国
收录类别	CSCD
WOS类目	Forestry
WOS研究方向	Forestry ; Environmental Sciences & Ecology
CSCD记录号	CSCD:6057468
来源机构	内蒙古农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/236411
作者单位	韩兆敏, 内蒙古农业大学沙漠治理学院, 呼和浩特, 内蒙古 010011, 中国.; 姚云峰, 内蒙古农业大学沙漠治理学院, 呼和浩特, 内蒙古 010011, 中国.; 郭月峰, 内蒙古农业大学沙漠治理学院, 呼和浩特, 内蒙古 010011, 中国.; 祁伟, 内蒙古农业大学沙漠治理学院, 呼和浩特, 内蒙古 010011, 中国.; 尉迟文思, 内蒙古农业大学沙漠治理学院, 呼和浩特, 内蒙古 010011, 中国.; 刘龙, 内蒙古农业大学沙漠治理学院, 呼和浩特, 内蒙古 010011, 中国.
推荐引用方式 GB/T 7714	韩兆敏,姚云峰,郭月峰,等. 砒砂岩区油松的茎流特征及其与环境因子的关系[J]. 内蒙古农业大学,2017,26(7):1145-1151.
APA	韩兆敏,姚云峰,郭月峰,祁伟,尉迟文思,&刘龙.(2017).砒砂岩区油松的茎流特征及其与环境因子的关系.生态环境学报,26(7),1145-1151.
MLA	韩兆敏,et al."砒砂岩区油松的茎流特征及其与环境因子的关系".生态环境学报 26.7(2017):1145-1151.