文章基本信息

标题：SUBSTANTIAL WATER LOSS FROM FOREST SURFACE SOIL AFTER THE WENCHUAN EARTHQUAKE
本地全文：下载
作者：Gang Yang ; Song Cheng ; Li Zhang 等
期刊名称：Fresenius Environmental Bulletin
印刷版ISSN：1018-4619
出版年度：2017
卷号：26
期号：7
页码：4350-4356
语种：English
出版社：PSP Publishing
摘要：This study aimed to determine the water loss quantity of surface soil from temperate forests after severe earthquake. We established three plots at each of the landslide and non-landslide Cupressus funehris stands at Shiyan site, two plots in the landslide and three in the non-landslide Cryptomeriafortunei forest stands at the Shuangdian site near the fault belt of the Wenchuan Earthquake. Each of the plots was 20 m x 20 m. In June and October, for analysis of soil water properties, soil samples were collected by aluminum cylinders (100 cm3) at each of three soil layers (0-10，10-20, 20-40 cm), respectively, at the center and near the four corners of each plot. We found that saturated water content and capillary water capacity were lower in landslide plots than in non-landslide ones, with the landslide-induced soil water loss at the forest stands ranging from 74 to 357 t/hm2, indicating that earthquake-induced landslide dried the surface soil of forest. Such earthquake-induced soil drying varied with different forest stands. Compared with that of C. ^unebris, the surface soil of C. fortunei lost less soil water, suggesting the greater water retention ability of the latter. The water stress created by earthquake-induced landslides may be the dominant contributor to the tree mortality in C. funebris and C.fortunei in the fault zone of the Wenchuan Earthquake.