我国半干旱荒漠草原典型植被群落对土壤入渗特性的影响
Soil infiltration properties are affected by typical plant communities in a semi-arid desert grassland in China
从土壤表面入渗形成土壤水的过程称为土壤入渗,是植物吸收和利用土壤水分的唯一途径,与养分迁移、地表径流和土壤侵蚀密切相关。近年来,全球气候变化和过度放牧等人类干扰破坏了草原生态系统的稳定性。大面积草地退化,斑块暴露,表面压实程度高,易形成地表径流,造成水土流失过程加剧。在水分限制地区,降雨入渗是补充植物生长所需水分的主要途径。水渗入土壤是干旱半干旱区补充根区带土壤水分的关键过程。先前的研究主要集中于土壤性质和植被类型对土壤入渗过程的影响,本文在此基…查看全部>>
A process of infiltration from the soil surface to form soil water is known as soil infiltration;this is the only way for plants to absorb and use soil water.This process is closely related to nutrient migration,surface runoff,and soil erosion.In recent years,human disturbances such as global climate change and overgrazing have undermined the stability of grassland ecosystems.Large-scale grassland degradation,patch exposure,high degree of surface compaction,…查看全部>>
侍世玲;赵飞燕;任晓萌;蒙仲举;党晓宏;吴小龙;
Soil infiltration Plant community Root properties Semi-arid desert grassland.
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