风蚀坑

沙质草原风蚀坑的发育过程主要有以下几个阶段：风蚀裸地→土层破口→活跃发展风蚀坑→固定风蚀坑→消亡风蚀坑。

Development of sandy grassland blowout has mainly the following stages : Aeolian bare soil , crevasse in soil layer , actively developing blowout , fixed blowout , dieing out blowout .

X2检验结果显示榆树、沙丘、风蚀坑三者在分布上相互之间存在极显著的正关联关系，草本植被的分布分别与榆树、沙丘、风蚀坑的分布之间存在极其显著的负关联关系。

The results showed that the distribution of herbaceous vegetation was observably negatively correlated with the distribution of sand dunes , elm trees and aeolian pits , respectively .

呼伦贝尔沙质草原槽形风蚀坑表面气流特征

Air flow dynamics of the blowout trough in the Hulun Buir sandy grassland

呼伦贝尔沙质草原风蚀坑形态发育模式分析

Morphology and Developmental Mode of Blowouts in Hulun Buir Sandy Grassland , China

保护沙质草原区植被和地表土层不受破坏是防止风蚀坑发生发展的关键。

Protection of grassland vegetation and top soil layer is vital to avoiding the development of blowouts .

厚田拙区的风沙化土地以风成沙丘、沙质风蚀坑、波状片状沙地、蔓荆子沙堆及河流沙质沉积阶地交错分布。

Blownsand land in Houtian region consists of sand dunes , sandy blownouts , undulated sand sheet , vegetated sand mound and sandy river terraces .

前人的研究发现风蚀坑多发展为风沙堆积地貌，例如抛物线型沙丘或线性沙丘，而本区风蚀坑则可发展为其他类型的风蚀地貌。

Previous study found that blowouts will evolve into wind-accumulated landform , such as parabolic dunes or linear dunes . However , blowout in this area can evolve into other types of wind eroded landforms .

发现87%的风蚀坑由人类活动引起。其中翻耕、道路、人类定居活动诱发的风蚀坑分别占35.8%、34.8%和16%。

It was discovered that 87 % of blowouts are caused by human activities , with plowing , grassland motor vehicle natural road , and resident related activities counting for 35.8 % , 34.8 % , and 16 % respectively .