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[1]王满堂 卢宏典 程栋梁* 郑 媛 钟全林 郭炳桥 马玉珠 靳冰洁.降水和气温对中国森林降水利用效率的影响*[J].应用与环境生物学报,2018,24(04):1-8.[doi:10.3724/SP.J.1145.2017.09041]
 WANG Mantang,LU Hongdian,CHENG Dongliang**,et al.Effects of precipitation and temperature on rain-use efficiency of Chinas forests*[J].Chinese Journal of Applied & Environmental Biology,2018,24(04):1-8.[doi:10.3724/SP.J.1145.2017.09041]
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降水和气温对中国森林降水利用效率的影响*()
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《应用与环境生物学报》[ISSN:1006-687X/CN:51-1482/Q]

卷:
24卷
期数:
2018年04期
页码:
1-8
栏目:
研究论文
出版日期:
2018-08-25

文章信息/Info

Title:
Effects of precipitation and temperature on rain-use efficiency of Chinas forests*
文章编号:
201709041
作者:
王满堂1 卢宏典2 程栋梁2* 郑 媛2 钟全林2 郭炳桥2 马玉珠2 靳冰洁2
1枣庄学院城市与建筑工程学院 枣庄 277160
2福建师范大学地理科学学院 福州 350007
Author(s):
WANG Mantang1 LU Hongdian2 CHENG Dongliang2** ZHENG Yuan2 ZHONG Quanlin2 GUO Bingqiao2 MA Yuzhu2 & JIN Bingjie2
1 College of City and Civil Engineering, Zaozhuang University, Zaozhuang 277160, China?
2 College of Geographical Science, Fujian Normal University, Fuzhou 350007, China
关键词:
降水利用效率森林群落净初级生产力降水气温
Keywords:
rain-use efficiency RUE forests community net primary production precipitation temperature
DOI:
10.3724/SP.J.1145.2017.09041
摘要:
水分在植物的生长过程中扮演着重要的角色。目前,全球气候变化导致频繁的降水或干旱,研究不同降水模式对生态系统生产力的影响具有重要的意义。关于中国森林的降水利用效率(Rain-use Efficiency,RUE)RUE是否存在差异以及其他环境因子对RUE的影响的研究未见报道。本文根据全国17种类型的森林、1266个森林样地的调查数据,研究中国不同类型森林的降水利用效率。结果表明:(1)中国森林的RUE平均值为1.21 g·m-2·mm-1,RUE与降水量呈负相关关系;(2)阔叶林(主要由被子植物构成)的RUE均值显著高于针叶林(主要由裸子植物构成)的RUE均值,阔叶林比针叶林更适应降水量的变化;(3)落叶林的RUE均值显著高于常绿林的RUE均值,随着降水量的升高,落叶林的RUE值降低直到达到一个阈值,而常绿林的RUE值与降水量没有显著的相关性;(4)纬度和年平均温度是复合环境因子中RUE的主要限制因子。本研究表明,随着降水量的增加中国森林群落的降水利用效率下降直至阈值,气温是影响中国森林的降水利用效率的主要环境因子。
Abstract:
Objectives: Water plays an important role in the growth process of plants. It is important to research the responses of different ecosystems to precipitation patterns, especially in terms of global change involving extreme precipitation or drought. However, little is known about rain-use efficiency (RUE) in a China’s forest and their interactions between RUE and precipitation and other environmental factors. Furthermore, whether or not difference forest types or functional groups have divergent RUE patterns remains unclear. Methods: To investigate the RUE in China’s forests, we analyzed the data of 1266 forest sample plots of 17 forest types.Results: The results indicate the following: (1) The mean RUE of China’s forests is 1.21 g·m-2·mm-1. RUE and precipitation are negatively correlated in all 17 forest types. (2) The average RUE of angiosperms is higher than that of gymnosperms, and angiosperms are more suitable to precipitation changes than gymnosperms. (3) The average RUE of deciduous forests is higher than that of evergreen forests. The RUE of deciduous forests declines with precipitation until a threshold. However, the RUE of evergreen forests does not change with precipitation. (4) Latitude and mean annual temperature are the major factors constraining RUE under comprehensive environmental factors. Conclusions: The mean RUE decrease with increasing precipitation until a threshold, and then temperature becomes a more important factor.

备注/Memo

备注/Memo:
收稿日期:2017-09-27 接受日期:2017-10-18
*国家自然科学基金项目(31370589)、山东省自然科学基金项目(ZR2013CL027)、枣庄学院国家预研基金项目(2015YY07)资助
**通讯作者(E-mail: chengdl02@aliyun.com)
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更新日期/Last Update: 2017-11-15