Characteristics of Soil Moisture and Evaporation under the Activities of Earthworms in Typical Anthrosols in China

doi:10.3390/su12166603

	Characteristics of Soil Moisture and Evaporation under the Activities of Earthworms in Typical Anthrosols in China
	Ma, Li 2,3; Shao, Ming'an 1,2; Li, Tongchuan 1
刊名	SUSTAINABILITY
	2020-08-01
卷号	12 期号:16 页码:11
关键词	cumulative soil evaporation soil water content soil temperature earthworm
DOI	10.3390/su12166603
通讯作者	Shao, Ming'an(mashao@ms.iswc.ac.cn)
英文摘要	Earthworms have an important influence on the terrestrial ecological environment. This study assesses the effect of different earthworm densities on soil water content (SWC) and evaporation in a laboratory experiment. Four earthworm densities (0 no-earthworm, control [C]; 207 earthworms m(-2), low density [LDE]; 345 earthworms m(-2), medium density [MDE]; and 690 earthworms m(-2), high density [HDE]) are tested in soil columns. Results show that cumulative evaporation occurs in the decreasing order of densities: C (98.6 mm) > LDE (115.8 mm) > MDE (118.4 mm) > HDE (124.6 mm). Compared with the control, earthworm activity decreases cumulative soil evaporation by 5.0-20.9%, increases soil temperature to 0.46 degrees C-0.63 degrees C at 8:00, and decreases soil temperature to 0.21 degrees C-0.52 degrees C at 14:00 on the soil surface. Temperature fluctuations reduce with increasing earthworm densities. A negative correlation is found between cumulative soil evaporation and earthworm density (R-2= 0.969,p< 0.001). Earthworms significantly (p< 0.05) decrease the surface SWC loss (0-20 cm) soil layer but increase the subsoil SWC loss (60-100 cm) by adjusting the soil temperature and reducing soil water evaporation. Earthworm activities (burrows, casts horizontal ellipsis ) improve the soil water holding ability by adjusting soil temperature and reducing soil water evaporation. Thus, the population quantity of earthworms may provide valuable ecosystem services in soil water and heat cycles to save water resources and realize sustainable agricultural development.
资助项目	National Natural Science Foundation of China[41807011] ; National Natural Science Foundation of China[41530854] ; Opening Foundation of the State Key Laboratory of Soil Erosion and Dryland Farming on Loess Plateau[A314021402-1717] ; Natural Science Foundation of Shaanxi Province[2020JQ896]
WOS关键词	ENDOGEIC EARTHWORMS ; NO-TILLAGE ; INFILTRATION ; CARBON ; DYNAMICS ; ABUNDANCE ; NITROGEN ; SYSTEMS ; ANTS ; FLOW
WOS研究方向	Science & Technology - Other Topics ; Environmental Sciences & Ecology
语种	英语
出版者	MDPI
WOS记录号	WOS:000578886200001
资助机构	National Natural Science Foundation of China ; Opening Foundation of the State Key Laboratory of Soil Erosion and Dryland Farming on Loess Plateau ; Natural Science Foundation of Shaanxi Province
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/157153]
专题	中国科学院地理科学与资源研究所
通讯作者	Shao, Ming'an
作者单位	1.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China 3.Baoji Univ Arts & Sci, Key Lab Disaster Monitoring & Mech Simulating Sha, Baoji 721013, Peoples R China
推荐引用方式 GB/T 7714	Ma, Li,Shao, Ming'an,Li, Tongchuan. Characteristics of Soil Moisture and Evaporation under the Activities of Earthworms in Typical Anthrosols in China[J]. SUSTAINABILITY,2020,12(16):11.
APA	Ma, Li,Shao, Ming'an,&Li, Tongchuan.(2020).Characteristics of Soil Moisture and Evaporation under the Activities of Earthworms in Typical Anthrosols in China.SUSTAINABILITY,12(16),11.
MLA	Ma, Li,et al."Characteristics of Soil Moisture and Evaporation under the Activities of Earthworms in Typical Anthrosols in China".SUSTAINABILITY 12.16(2020):11.