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沙棘是胡颓子科沙棘属的一种灌木或小乔木,是一种集生态效益、经济效益和社会效益于一身的先锋树种。近几年来,黑龙江省龙江县开展了大面积的沙棘人工造林,现拥有沙棘人工林近10万亩,特别是在西部半山区,集中栽植的6万亩沙棘水保林,在治理侵蚀沟、控制水土流失、改善区域生态环境和促进农业增产增收及农村经济发展上起到了积级作用。 一、沙棘林的树冠截流与枯枝落叶的持水作用 龙江县西部半山区土壤瘠薄植被稀疏水土流失严重,全县境内已形成侵蚀沟2万多条。为根本改变这一现状。
Seabuckthorn is a kind of shrub or small tree of Elaeocarpus, which is a pioneer tree species with ecological, economic and social benefits. In recent years, Longjiang County, Heilongjiang Province, launched a large area of artificial afforestation of sea buckthorn, now has nearly 100000 acres of seabuckthorn plantations, especially in the western half of the mountain area, concentrated planting 6 acres of seabuckthorn water conservation forest, in the management of erosion ditches , Control soil and water loss, improve regional ecological environment and promote agricultural production and income and rural economic development has played an integral role. First, the canopy interception of seabuckthorn trees and the water holding effect of litter The sparse water and soil erosion of the infertile soils in the semi-mountainous area of western half of Longjiang County is serious. There are more than 20,000 eroded ditches in the county. To fundamentally change the status quo.