Sources of water used by Pinus sylvestris var. mongolica trees based on stable isotope measurements in a semiarid sandy region of Northeast China
详细信息 查看全文
- 作者：Lining Songa ; b ; c ; Jiaojun Zhua ; b ; c ; jiaojunzhu@iae.ac.cn" class="auth_mail" title="E-mail the corresponding author ; Mingcai Lia ; b ; c ; Jinxin Zhanga ; b ; c ; Linyou Lvd
- 关键词：Dieback ; Water deficit ; Soil water ; Groundwater
- 刊名：Agricultural Water Management
- 出版年：2016
- 出版时间：31 January 2016
- 年：2016
- 卷：164
- 期：part_P2
- 页码：281-290
- 全文大小：1802 K
文摘
- •
Water sources were vital for exploring mechanisms inducing the Mongolian pine dieback.
- •
Trees used soil water in spring and autumn, but soil water and groundwater in summer.
- •
30% and 56% of water used came from groundwater when soil moisture were 6.6% and 3.5%.
- •
Groundwater contribution to transpiration was 12.2% during the measurement period Pine dieback occurred when water table declined suddenly in extreme low rainfall year.
- •
“Pine dieback occurred when water table declined suddenly in extreme low rainfall year” should be the fifth bullet point.