气候变化领域集成服务门户(CCPortal): Minimum forest cover required for sustainable water flow regulation of a watershed: A case study in Jambi Province; Indonesia

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DOI	10.5194/hess-22-581-2018
	Minimum forest cover required for sustainable water flow regulation of a watershed: A case study in Jambi Province; Indonesia
	Tarigan S.; Wiegand K.; Sunarti; Slamet B.
发表日期	2018
ISSN	1027-5606
起始页码	581
结束页码	594
卷号	22 期号:1
英文摘要	In many tropical regions, the rapid expansion of monoculture plantations has led to a sharp decline in forest cover, potentially degrading the ability of watersheds to regulate water flow. Therefore, regional planners need to determine the minimum proportion of forest cover that is required to support adequate ecosystem services in these watersheds. However, to date, there has been little research on this issue, particularly in tropical areas where monoculture plantations are expanding at an alarming rate. Therefore, in this study, we investigated the influence of forest cover and oil palm (Elaeis guineensis) and rubber (Hevea brasiliensis) plantations on the partitioning of rainfall into direct runoff and subsurface flow in a humid, tropical watershed in Jambi Province, Indonesia. To do this, we simulated streamflow with a calibrated Soil and Water Assessment Tool (SWAT) model and observed several watersheds to derive the direct runoff coefficient (C) and baseflow index (BFI). The model had a strong performance, with Nash-Sutcliffe efficiency values of 0.80- 0.88 (calibration) and 0.80-0.85 (validation) and percent bias values of 2.9 1.2 (calibration) and 7.0-11.9 (validation). We found that the percentage of forest cover in a watershed was significantly negatively correlated with C and significantly positively correlated with BFI, whereas the rubber and oil palm plantation cover showed the opposite pattern. Our findings also suggested that at least 30% of the forest cover was required in the study area for sustainable ecosystem services. This study provides new adjusted crop parameter values for monoculture plantations, particularly those that control surface runoff and baseflow processes, and it also describes the quantitative association between forest cover and flow indicators in a watershed, which will help regional planners in determining the minimum proportion of forest and the maximum proportion of plantation to ensure that a watershed can provide adequate ecosystem services.
语种	英语
scopus关键词	Calibration; Ecology; Ecosystems; Flow of water; Forestry; Hydraulics; Palm oil; Planning; Rain; Rubber; Rubber plantations; Tropics; Water conservation; Watersheds; Ecosystem services; Hevea brasiliensis; Monoculture plantations; Oil palm plantations; Oil palms (Elaeis guineensis); Runoff coefficients; Soil and water assessment tool; Sustainable ecosystems; Runoff; baseflow; calibration; deciduous tree; degradation; ecosystem service; flow regulation; forest cover; model validation; plantation; soil and water assessment tool; streamflow; subsurface flow; sustainability; tropical region; watershed; Indonesia; Jambi [Indonesia]; Elaeis; Elaeis guineensis; Hevea brasiliensis
来源期刊	Hydrology and Earth System Sciences
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/160138
作者单位	Tarigan, S., Department of Soil Sciences and Natural Resource Management, Bogor Agricultural University, Bogor, Indonesia; Wiegand, K., Department of Ecosystem Modeling, University of Göttingen, Büsgenweg 4, Göttingen, 37077, Germany; Sunarti, Faculty of Agriculture, University of Jambi, Jambi, Indonesia; Slamet, B., Faculty of Agriculture, North Sumatra University, Medan, Indonesia
推荐引用方式 GB/T 7714	Tarigan S.,Wiegand K.,Sunarti,et al. Minimum forest cover required for sustainable water flow regulation of a watershed: A case study in Jambi Province; Indonesia[J],2018,22(1).
APA	Tarigan S.,Wiegand K.,Sunarti,&Slamet B..(2018).Minimum forest cover required for sustainable water flow regulation of a watershed: A case study in Jambi Province; Indonesia.Hydrology and Earth System Sciences,22(1).
MLA	Tarigan S.,et al."Minimum forest cover required for sustainable water flow regulation of a watershed: A case study in Jambi Province; Indonesia".Hydrology and Earth System Sciences 22.1(2018).