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Soil water storage capacity under chronosequence of revegetation in Yanhe watershed on the Loess Plateau China

机译:黄土高原延河流域植被恢复时序下的土壤贮水量

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摘要

The relationship between vegetation and soil moisture deserves attention due to its scientific importance and practical applications. However, the effects of soil moisture on vegetation development and succession are poorly documented. Here we study soil water storage in Yanhe watershed at northern Shaanxi on five different land uses, namely shrubland, farmland, natural grassland, woodland, and artificial grassland, and in soil under restoration for 5, 10, 15, 20 and 25. The results show that (1) soil water in soil 0-60 cm below ground is the highest in farmland, and lower in shrubland, artificial grassland, natural grassland and woodland; (2) soil water in artificial grassland and woodland decreases rapidly as the soil depth increases; whereas soil water in farmland, natural grassland, shrubland and woodland decreases; (3) soil water storage of farmland is greater than that of shrubland, artificial grassland, natural grassland and woodland; and (4) the vegetation succession in soil undergo restoration for different years on eroded soil results in a decrease in soil water storage.
机译:植被与土壤水分之间的关​​系由于其科学重要性和实际应用值得关注。但是,关于土壤水分对植被发育和演替的影响的文献很少。在这里,我们研究了陕北沿河流域的灌木,农田,天然草地,林地和人工草地这五种不同土地利用的土壤水储量,以及恢复后的土壤的储水量分别为5、10、15、20和25。表明:(1)地下0-60 cm的土壤水在农田中最高,在灌木地,人工草地,天然草地和林地中较低; (2)随着土壤深度的增加,人工草地和林地的土壤水分迅速减少;农田,天然草地,灌木林和林地的土壤水分减少; (3)农田土壤蓄水量大于灌丛,人工草地,天然草地和林地; (4)侵蚀土壤在不同年限内恢复了植被演替,导致土壤储水量减少。

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