中国生态系统研究网络CERN专题 最新来稿(未评审) 版本 ZH1
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2009–2016年北亚热带常绿落叶阔叶混交林土壤水分含水量数据集
A dataset of soil moisture in a north subtropical mixed evergreen and deciduous broad-leaved forest (2009 – 2016)
: 2019 - 08 - 30
: 2019 - 09 - 05
1037 0 0
摘要&关键词
摘要:土壤水分含量是研究土壤水分状况和动态的基础指标,是陆地生态系统水环境长期定位观测的重要指标之一。常绿落叶阔叶混交林是我国北亚热带地带性的植被类型。研究区域位于三峡库区和南水北调中线工程的重要集水区。本数据集收集了2009年5月至2016年12月的土壤水分含量数据,总数据量7425条。测定方法为TDR定点连续观测,观测深度为0–10 cm、10–20 cm、20–30 cm、30–40 cm、40–50 cm,观测频度为每月2次。在20 m×5 m(水平投影)的人工径流场的上部、中部和下部分别埋设了3根测管,共9根测管。用户可以按照观测时间、观测深度和坡位进行数据检索。北亚热带常绿落叶阔叶混交林土壤水分数据库的建立与共享,为理解水利工程集水区水分涵养和水量调节功能提供重要数据支持,为理解未来全球变化条件下该类型森林的土壤水分动态特征及其对气候变化的响应提供了数据支撑,对区域森林生态系统水量平衡和水文循环有重要意义,有助于提升常绿落叶阔叶混交林森林水文学的科学研究,对推动我国森林水文学的研究具有重要意义。
关键词:土壤水分含量;TDR;常绿落叶阔叶混交林;北亚热带;神农架站
Abstract & Keywords
Abstract: Soil moisture content is the basic index for studying soil moisture status and dynamics, and it is one of the important indexes for long-term observation of terrestrial ecosystem water environment. Evergreen deciduous broad-leaved mixed forest is a zonal vegetation type in north subtropical China. The observation area is located in the important catchment area of the three gorges reservoir area and the middle route of the south-to-north water diversion project. This data set collected soil moisture content data from May 2009 to December 2016, with a total of 7,425 data items. The determination method is fixed point continuous observation by instrument of TDR . The observation depths were 0–10 cm, 10–20 cm, 20–30 cm, 30–40 cm and 40–50 cm with the observation frequency is 2 times per month. There are 9 measuring tubes, every three measuring pipes are buried in the upper part, middle part and lower part of the artificial runoff field of 20 m×5 m (horizontal projection). Users can conduct data retrieval according to observation time, observation depth and slope position. Establishment and sharing of soil moisture database in north subtropical evergreen deciduous broadleaf mixed forest, is to provide important data support for understanding water conservation and water regulation functions of water catchment areas of water conservancy projects, to provide data support for understanding the soil moisture dynamic characteristics of this type of forest and its response to climate change under the condition of future global change. It is of great significance to the water balance and hydrological cycle of regional forest ecosystem, to further understand the forest hydrology of mixed evergreen deciduous broad-leaved forest and promote the study of forest hydrology in China.
Keywords: soil moisture;  Time domain reflectometry; mixed evergreen and deciduous broad-leaved forest; north subtropical; SNF
稿件与作者信息
赵常明
Zhao Changming
zhaochangming@ibcas.ac.cn
申国珍
Shen Guozhen
徐文婷
Xu Wenting
熊高明
Xiong Gaoming
樊大勇
FAN dayong
周友兵
Zhou Youbing
葛结林
Ge Jielin
谢宗强
Xie Zongqiang
xie@ibcas.ac.cn
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