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Choosing an optimal land-use pattern for restoring eco-environmentsin a semiarid region of the Chinese Loess Plateau
Wang,YQ(Wang,Yunqiang)[1,2,3]; Shao,MA(Shao,Ming'an)[2]; Zhang,CC(Zhang,Chencheng)[3]; Han,XW(Han,Xiaowei)[2]; Ma,TX(Ma,Tianxu)[3]; Jia,XX(Jia,Xiaoxu)[2]
2015
Source PublicationEcological Engineering
Volume74Issue:2015Pages:213-222
Subtype期刊论文
Abstract

The natural environments in the semiarid regions of the Chinese Loess Plateau (CLP) are fragile due to the serious soil erosion and the weak ecological services of the plants. To ascertain and then evaluate a sustainable land-use pattern in these regions, we selected six typical land-use patterns (i.e., a farmland, a natural grassland, a homogeneous shrubland (S), a mix of shrubland and cultivated grassland (S–Alf), a mix of shrubland and orchard (S–O) and a mix of shrubland and grassland (S–G)) on the plateau and then measured the soil water, related soil properties and plant root indices to a depth of 1800 cm. We also measured the aboveground net primary productivities (ANPPs). The mean soil water content (SWC) within the 0–1800 cm profile was significantly highest (15.2%) in farmland, followed by grassland (11.4%) and S–Alf (8.0%). The available water (AW), the ratio between AW and AW capacity, and the thickness of the dried soil layers also demonstrated that farmland had the best conditions of soil water, followed by grassland and shrubland. The aboveground biomasses of grassland in both non-growing (140 g m 2) and growing (370 g m 2) seasons were significantly higher than those of shrublands. The ANPPs of the grassland (2.0 g m 2 d 1) demonstrated a similar trend. The patterns of land use (including the mixtures of different plant species) greatly affected the patterns of vertical distribution and quantities of soil water within the 1800-cm profile. The data for the soil–water regime and the ANPP further indicated that grassland would be an optimal use of the land for these semiarid regions. This information should be useful to the ecological scientists and policy makers for developing strategies for the sustainable management of vegetation on the CLP and possibly other water-limited regions around the world.

KeywordDeep Soils Dried Soil Layer Aboveground Net Primary Productivity Soil Water Grassland Shrubland
DOI10.1016/j.ecoleng.2014.10.001
Indexed BySCI
Language英语
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Cited Times:24[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/9446
Collection生态环境研究室
Affiliation1.State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, Shaanxi 710075, China;
2.Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy ofSciences, Beijing 100101, China;
3.State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Chinese Academy of Sciences &Ministry of Water Resources, Yangling 712100, China
Recommended Citation
GB/T 7714
Wang,YQ,Shao,MA,Zhang,CC,et al. Choosing an optimal land-use pattern for restoring eco-environmentsin a semiarid region of the Chinese Loess Plateau[J]. Ecological Engineering,2015,74(2015):213-222.
APA Wang,YQ,Shao,MA,Zhang,CC,Han,XW,Ma,TX,&Jia,XX.(2015).Choosing an optimal land-use pattern for restoring eco-environmentsin a semiarid region of the Chinese Loess Plateau.Ecological Engineering,74(2015),213-222.
MLA Wang,YQ,et al."Choosing an optimal land-use pattern for restoring eco-environmentsin a semiarid region of the Chinese Loess Plateau".Ecological Engineering 74.2015(2015):213-222.
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