Research on the Improved Effect of Grassland Deser-tification Salinity-alkalinity by Vibration Deep Loos-ening Integration Technology
In recent years, following with the environmental changes, estrepement, and overgrazing, the grassland desertifi-cation area of song-nen plain extended year by year with in-creasing rate of 1.5 2％, ecological environment was continu-ously deteriorated, regional economy of farming and animal husbandry sustainable development was restricted. According to the alkaline desertification of the different area soil and their causes, soil improvement and adjust water resource were proposed as starting point, using vibration deep loosening as the core to improve alkaline desertification grassland, assisted by the integration technology of modifier and agronomic measures. The experimental datas showed that: with the integration technology, soil salinity, potassium and sodium content, PH value, penetrat-ing resistance, bulk density had decreased more than 18％ than control area, permeability and porosity had been respectively improved 25 times and 35.8％. The species richness index and diversity index is only 0.1753 and 0.4899 before improvement, they had been respectively increased 7.0 times and 2.8 times than control area, evenness index was increased to 0.8442 from 0.7068.
Song-nen plain alkaline desertification deeply vi-brating-loosening species diversity
Huang Yan Si Zhenjiang Teng Yun Wang Bai
Heilongjiang Provincial Hydraulic Research Institute, Harbin, China, 150080
国际会议
山东淄博
英文
545-551
2011-05-27（万方平台首次上网日期，不代表论文的发表时间）