Profile characteristics of temporal stability of soil water storage in two land uses
文献类型：期刊论文
| 作者 | Liu Yi; Chen Fang; Qu Xin; Xu Cuilan; Liu Yingying; Liu Dongdong; She Dongli |
| 刊名 | ARABIAN JOURNAL OF GEOSCIENCES
 |
| 出版日期 | 2014 |
| 英文摘要 | Information on soil water storage (SWS) within soil profiles is essential in order to characterize hydrological and biological processes. One of the challenges is to develop low cost and efficient sampling strategies for area estimation of profile SWS. To test the existence of certain sample locations which consistently represent mean behavior irrespective of soil profile wetness, temporal stability of SWS in ten soil layers from 0 to 400 cm was analyzed in two land uses (grassland and shrub land), on the Chinese Loess Plateau. Temporal stability analyses were conducted using two methods viz. Spearman rank correlation coefficient (r (s)) and mean relative differences. The results showed that both spatial variability and time stability of SWS increased with increasing soil depth, and this trend was mainly observed at above 200 cm depth. High r (s) (p < 0.01) indicated a strong temporal stability of spatial patterns for all soil layers. Temporal stability increased with increasing soil depth, based on either r (s) or standard deviation of relative difference index. The boundary between the temporal unstable and stable layer of SWS for shrub land and grassland uses was 280 and 160 cm depth, respectively. No single location could represent the mean SWS for all ten soil layers. For temporal stable layers, however, some sampling locations could represent the mean SWS at different layers. With increasing soil depth, more locations were able to estimate the mean SWS of the area, and the accuracy of prediction for the representative locations also increased. |
| 源URL | [http://202.127.146.157/handle/2RYDP1HH/513]  |
| 专题 | 中国科学院武汉植物园 |
| 推荐引用方式 GB/T 7714 | Liu Yi,Chen Fang,Qu Xin,et al. Profile characteristics of temporal stability of soil water storage in two land uses[J]. ARABIAN JOURNAL OF GEOSCIENCES,2014. |
| APA | Liu Yi.,Chen Fang.,Qu Xin.,Xu Cuilan.,Liu Yingying.,...&She Dongli.(2014).Profile characteristics of temporal stability of soil water storage in two land uses.ARABIAN JOURNAL OF GEOSCIENCES. |
| MLA | Liu Yi,et al."Profile characteristics of temporal stability of soil water storage in two land uses".ARABIAN JOURNAL OF GEOSCIENCES (2014). |
入库方式： OAI收割
来源：武汉植物园
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