Characteristics of soil moisture storage from 1979 to 2017 in the karst area of China

被引：14
|
作者：
Deng, Yuanhong [1 ,2 ,3 ]
Wang, Shijie [1 ,4 ]
Bai, Xiaoyong [1 ,5 ,6 ]
Luo, Guangjie [6 ]
Wu, Luhua [1 ,3 ]
Chen, Fei [1 ,7 ]
Wang, Jinfeng [1 ,7 ]
Li, Qin [1 ,3 ]
Li, Chaojun [1 ,8 ]
Yang, Yujie [1 ,8 ]
Hu, Zeyin [1 ,3 ]
Tian, Shiqi [1 ,8 ]
机构：
[1] Chinese Acad Sci, Inst Geochem, State Key Lab Environm Geochem, Guiyang, Guizhou, Peoples R China
[2] Chinese Acad Sci, Inst Geochem, Ctr Lunar & Planetary Sci, Guiyang, Guizhou, Peoples R China
[3] Univ Chinese Acad Sci, Beijing, Peoples R China
[4] Chinese Acad Sci, Puding Karst Ecosyst Observat & Res Stn, Puding, Peoples R China
[5] CAS Ctr Excellence Quaternary Sci & Global Change, Xian, Shaanxi, Peoples R China
[6] Guizhou Educ Univ, Guizhou Prov Key Lab Geog State Monitoring Waters, Guiyang, Guizhou, Peoples R China
[7] Guizhou Univ, Coll Resources & Environm Engn, Guiyang, Guizhou, Peoples R China
[8] Guizhou Normal Univ, Sch Geog & Environm Sci, Guiyang, Guizhou, Peoples R China
来源：
GEOCARTO INTERNATIONAL | 2021年 / 36卷 / 08期
基金：
中国国家自然科学基金;
关键词：
Karst; soil moisture storage; precipitation; elevation; land cover; ROCKY DESERTIFICATION; WATER-RESOURCES; CLIMATE;
D O I：
10.1080/10106049.2019.1629648
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Soil moisture restricts the ecological restoration in karst, but studies on soil moisture storage (SMS) in karst are lacking. Thus, this study analyzed the characteristics of SMS in the karst area of China (K) and revealed the relationships of SMS with its influencing factors. The main results are as follows: (1) Average SMS in K is higher than that in the non-karst area (N). However, when SMS is below the thresholds 12 mm (0-7 cm) and 563.6 mm (0-289 cm), SMS in K is lower than that in N. (2) SMS in K experienced a decreasing trend in 1979-2017. (3) SMSs of K and N increase with precipitation class, but the SMS in K is more sensitive to precipitation. (4) SMSs of Agriculture and Forest landcovers in K significantly reduced in 1979-2017. Overall, the SMSs in K are high, but the soil water is easily lost due to serious soil erosion.
引用
收藏
页码：903 / 917
页数：15
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