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	Analysis of the soil water balance for large-scale reforestation with Eucommia ulmoides in the hilly red soil region of southern China
	Huang Z. G.; Xiao, Y.; Yang, F.; Huang, S. L.; Li, Y. Y.
	2016
关键词	Soil water content Soil water balance Modified P-M model Effective precipitation Actual evapotranspiration Suitable plant region climate-change reference evapotranspiration impacts drought gis erosion model india
英文摘要	Returning farmland to forests is important for the protection of ecological values. Eucommia ulmoides is considered to be a suitable species for reforestation in the hilly red soil region of southern China. The objective of this study was to investigate the relationship between the water supply and demand of an E. ulmoides plantation to provide insights into the feasibility of large-scale planting for ecological restoration and forest management activities in the hilly red soil region of southern China. With the measured precipitation, surface runoff and interflow and actual evapotranspiration (ETc) estimated by the modified P-M model, soil water storage (SWS) was estimated based on the water balance equation. Monthly variations of SWS were then compared with in situ measured SWS. The results showed that the estimated mean monthly water losses (the sum of the surface runoff, interflow and ETc) were 139.8 mm in a wet year and 120.0 mm in a dry year, while the measured mean monthly water input values (net precipitation) were 131.2 mm in a wet year and 70.8 mm in a dry year. Net soil water storage (Delta SWS) was negative in each month of the growing season in a dry year, but the soil water deficit was replenished during the following season. The model performance showed that the modified P-M model can be adapted to estimate the soil water storage in other forest catchments where no adequate in situ data are available. As a result of estimating the water balance and observing soil water storage in two different hydrological years, E. ulmoides is recommended as a suitable forest rehabilitation species in the study area, and a suitable plant region has been defined by the GIS technique based on the water balance model.
出处	Regional Environmental Change
卷	16
期	5
页	1333-1343
语种	英语
ISSN号	1436-3798
DOI标识	10.1007/s10113-015-0859-1
内容类型	SCI/SSCI论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/42990]
专题	地理科学与资源研究所_历年回溯文献
推荐引用方式 GB/T 7714	Huang Z. G.,Xiao, Y.,Yang, F.,et al. Analysis of the soil water balance for large-scale reforestation with Eucommia ulmoides in the hilly red soil region of southern China. 2016.

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