气候变化领域集成服务门户(CCPortal): Soft-riser bench terrace design for the hilly loess region of Shaanxi Province, China

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DOI	10.1016/j.landurbplan.2006.07.004
	Soft-riser bench terrace design for the hilly loess region of Shaanxi Province, China
	Cao, Shixiong; Chen, Li; Feng, Qi; Liu, Zhande
发表日期	2007
ISSN	0169-2046
卷号	80 期号:2019-01-02
英文摘要	Reconfiguration of hillside fields into terraces is regarded as one of the key techniques for water and soil conservation in mountainous regions. On slopes exceeding 75 degrees, traditional techniques of terracing are difficult to apply as terrace risers (i.e. backslopes), if not reinforced, are so abrupt that they collapse under gravity alone, thus damaging the terrace. To improve reconfiguring of hillside fields into terraces, holistic techniques of soft-riser bench terrace engineering, including revegetation with trees and planting of grasses on terrace riser slopes, were tested between 1997 and 2001 in Xiabiabgou watershed, Yan'an, Shaanxi Province, China. A "working with nature" engineering approach was employed, terrace riser slopes of 45 degrees, similar to the pre-existing slope of 35 degrees, were employed to reduce gravity erosion radically. Based on concepts of biodiversity and principles of landscape ecology, terrace benches, bands and risers were planted with trees, shrubs, forage grasses, and crops, serving to generate a diverse array of plants, a semi-forested area and to stabilize terrace bunds and risers. Soft-riser bench terrace design made it possible to reduce hazards arising from gravity erosion significantly, and reduce the costs of individual terrace riser construction and maintenance to 73.93% and 49.68%, respectively, of costs under traditional techniques. Such a construction allowed an enrichment and concentration of nutrients in the soil of the terrace bunds and risers, providing an ideal environment for a range of plants to grow and develop. The terrace riser can be planted with a drought-resistant plants ranging from forage grasses to trees. This terrace riser vegetation will turn the exposed terrace bunds and risers existing under traditional techniques into plant-covered belts, great green ribbons decorating the farmland, and contributing to the enhancement of the landscape's biology. (c) 2006 Elsevier B.V. All rights reserved.
关键词	near nature soft-riser bench terrace hard-riser bench terrace landscape ecology
学科领域	Environmental Sciences & Ecology; Geography; Physical Geography; Public Administration; Urban Studies
语种	英语
WOS研究方向	Ecology ; Environmental Studies ; Geography ; Geography, Physical ; Regional & Urban Planning ; Urban Studies
来源期刊	LANDSCAPE AND URBAN PLANNING
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/111507
推荐引用方式 GB/T 7714	Cao, Shixiong,Chen, Li,Feng, Qi,et al. Soft-riser bench terrace design for the hilly loess region of Shaanxi Province, China[J]. 中国科学院西北生态环境资源研究院,2007,80(2019-01-02).
APA	Cao, Shixiong,Chen, Li,Feng, Qi,&Liu, Zhande.(2007).Soft-riser bench terrace design for the hilly loess region of Shaanxi Province, China.LANDSCAPE AND URBAN PLANNING,80(2019-01-02).
MLA	Cao, Shixiong,et al."Soft-riser bench terrace design for the hilly loess region of Shaanxi Province, China".LANDSCAPE AND URBAN PLANNING 80.2019-01-02(2007).