黑河流域森林生态系统湿热特征分析
文献类型:期刊论文
作者 | 蒋冲 ; 王飞 ; 穆兴民 ; 赵云 |
刊名 | 水土保持通报
![]() |
出版日期 | 2012 |
卷号 | 32期号:03页码:96-100 |
关键词 | 黑河流域 :Heihe River basin 森林生态系统 forest ecosystem 土壤温度 soil temperature 土壤湿度 soil moisture 气温 air temperature 大气相对湿度 relative air humidity |
其他题名 | Characteristics of Temperature and Humidity in Forest |
中文摘要 | 利用2008年黑河流域典型森林生态系统土壤和空气温湿度观测资料,分析了不同层次土壤和大气温度和湿度的变化特征。结果表明:(1)各层土壤温度在2—3月达到一年中的最小值,在7—9月达到一年中最高值,土壤温度周年变化幅度以及年最低温度随土壤深度的增加而递减。(2)表层土壤含水量受春季融雪和降雨影响较大,在8月中、上旬达到最高值;20—40cm土壤含水量对春季融雪响应较弱,80—120cm土壤含水量较为稳定,不受冻融交替影响。(3)从当年7月中旬至次年1月下旬,林地各层气温呈下降趋势,2月上旬至7月上旬呈上升趋势;距离地表近2m高度全年各月份气温略高于10m和24m高度,气温最高值和最低值分别出现在14:30和6:30左右。(4)4—6月林内湿度相对较低,7—10月相对较高,空气相对湿度最高值和最低值分别出现在22:00和11:30左右;10m和24m处空气相对湿度变化规律与2m处基本一致 |
英文摘要 | Abstract:Temperature and humidity characteristics of soil and air at different levels are analyzed based on the observed data of typical forest ecosystem of Heihe River basin in 2008.Results show that:(1)Soil temperature at different depths is the lowest between February and March each year and the highest between July and September.Annual temperature difference and minimum soil temperature decreased with the increase in soil depth.(2)The moisture of top soil is greatly affected by snowmelt in spring and rainfall,reaching its maximum value in the middle or last ten days of August.There is less impact of snowmelt in spring on the soil moisture between 20and 40cm from soil surface.The soil moisture content between 80and 120cm is quite stable and is not influenced by snowmelt in spring.(3)Air temperature at different heights in forest presents a declining trend from the middle of July to the last ten days of January next year and then increases continuously from the early of February to the early of July.Air temperature at 2mheight is a bit warmer than that at 10and 24mheights.The highest and lowest daily temperature peaks are observed at about 14:30and 6: 30,respectively.(4)Air humidity in forest is lower between April and June and higher between June and October.The maximum and minimum relative humidity values are observed at about 22:00and 11:30,respectively. The humidity variation at 10or 24mheight is similar to that at 2mheight. |
语种 | 中文 |
公开日期 | 2014-10-13 |
源URL | [http://ir.iswc.ac.cn/handle/361005/5469] ![]() |
专题 | 水土保持研究所_水保所知识产出(1956-2013) |
推荐引用方式 GB/T 7714 | 蒋冲,王飞,穆兴民,等. 黑河流域森林生态系统湿热特征分析[J]. 水土保持通报,2012,32(03):96-100. |
APA | 蒋冲,王飞,穆兴民,&赵云.(2012).黑河流域森林生态系统湿热特征分析.水土保持通报,32(03),96-100. |
MLA | 蒋冲,et al."黑河流域森林生态系统湿热特征分析".水土保持通报 32.03(2012):96-100. |
入库方式: OAI收割
来源:水土保持研究所
浏览0
下载0
收藏0
其他版本
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。