[1]郝雅婕,邓巧玲,王艳霞,等. 元江干热河谷稀树灌丛土壤热通量特征[J].西北林学院学报,2019,34(5):23-28.[doi:10.3969/j.issn.1001-7461.2019.05.04]
 HAO Ya-jie,DENG Qiao-ling,WANG Yan-xia,et al. Dynamic Characteristics of Soil Heat Flux and Their Relationships with Meteorological Factors in the Valley-type Savanna of Yuanjiang of Southwest China[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2019,34(5):23-28.[doi:10.3969/j.issn.1001-7461.2019.05.04]
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 元江干热河谷稀树灌丛土壤热通量特征()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第34卷
期数:
2019年第5期
页码:
23-28
栏目:
出版日期:
2019-09-30

文章信息/Info

Title:
 Dynamic Characteristics of Soil Heat Flux and Their Relationships with Meteorological Factors in the Valley-type Savanna of Yuanjiang of Southwest China
文章编号:
1001-7461(2019)05-0023-06
作者:
 郝雅婕1邓巧玲1王艳霞1杨大新23张树斌23*
 (1.西南林业大学 生态与水土保持学院,云南 昆明 650224;2.西南林业大学 生态旅游学院,云南 昆明 650224;3.中国科学院 热带森林生态学重点实验室,云南 勐腊 666303;4.中国科学院 西双版纳热带植物园元江干热河谷生态站,云南 元江 653300)
Author(s):
 HAO Ya-jie1DENG Qiao-ling1WANG Yan-xia1YANG Da-xin23ZHANG Shu-bin23*
 (1.School of Ecology and Water&Soil Conservation,Southwest Forestry University,Kunming 650224,Yunnan,China; 2.School of Ecotourism,Southwest Forestry University,Kunming 650224,Yunnan,China;3.Key Laboratory of Tropical Forest Ecology,Chinese Academy of Sciences,Mengla 666303,Yunnan,China)
关键词:
 土壤热通量总辐射净辐射土壤温度干热河谷
Keywords:
 soil heat flux total radiation net radiation soil temperature dry-hot valley
分类号:
S714.2
DOI:
10.3969/j.issn.1001-7461.2019.05.04
文献标志码:
A
摘要:
 选取了元江干热河谷稀树灌丛,利用微气象法开展了土壤热通量的动态监测,并分析土壤热通量与气象因子的关系。结果表明,干季末期(3-4月)和雨季初期(5-6月)土壤热通量月累计值为正值,其他月份(1-2月和7-12月)累计值为负值。土壤热通量与日照时数、总辐射呈显著正相关关系(P<0.05),而与土壤含水量显著负相关(P<0.05)。干热河谷稀树灌丛土壤热通量月动态为单峰型,且土壤热通量高峰峰值较我国东北地区、西北地区、华南地区和华北地区提前,太阳总辐射成为干热河谷稀树灌丛土壤热传导的主要因素。
Abstract:
 Savanna distributes widely in the dry-hot valleys of Yuanjiang of southwest China,accompanying with hot and dry climate.The characteristics of soil heat flux and its influencing factors are unclear to date.In this study,by micro meteorological method,the soil heat flux was monitored for one year in a savanna ecosystem of Yuanjiang dry-hot valley,southwest China.Moreover,the relationships between soil heat flux and meteorological factors were analyzed.The results showed that the cumulative value of soil heat flux was positive in peak dry season (March-April) and early rainy season (May-June),while negative in the other periods (January-February and July-December).The soil monthly mean value of heat flux was positively correlated with monthly average solar hour,total radiation (P<0.01),but negatively correlated with soil water moisture (P<0.05).The monthly dynamics of soil heat flux showed a single peak and the period in peak was earlier than the Northeast,Northwest,South and North China.Our results indicated that the total radiation was the main factor which determined soil heat conduction in the Chinese savanna.

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备注/Memo

备注/Memo:
 收稿日期:2018-11-04修回日期:2019-01-11
基金项目:国家自然科学基金(31600479);中国科学院“西部之光”项目。
作者简介:郝雅婕,女,硕士,研究方向:土壤生态学。E-mail:haoyj0413@163.com
*通信作者:张树斌,男,博士,高级工程师,研究方向:植物生理生态学。E-mail:zhangshubin@xtbg.ac.cn
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