首页|Restoration of degraded grassland in the semi-arid region of Loess Plateau and development of husbandry

Restoration of degraded grassland in the semi-arid region of Loess Plateau and development of husbandry

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To study how degraded grassland could be recovered and utilized, we monitored the change progress of degraded grassland from secondary bare land to approximate original vegetation by using long-term gazing exclusion。Results indicated the recovery succession process could be divided into four stages。Community coverage, plant density, species richness and diversity index, aboveground and underground biomass increased gradually with the maximum level occurring in the 20th year。After 26 years, the grassland had entered into the 'subclimax' with the constructive species of Stipa grandis。Long-term grazing exclusion had a negative impact on species generation and ecosystem stability。Time is an important factor for ecological restoration。Degraded grassland can be utilized after being fenced for 10-15a, such as mowing once every two years。

Loess Plateaudegraded grasslandcommunity succession

Jimin Cheng、Liang Guo、Jingwei Jin、Renbin Zhu

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State Key Laboratory of Soil Erosion and Dryland Farming on Loess Plateau, Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling 712100, Shaanxi, China

Institute of Soil and Water Conservation, Northwest A&F University, Yangling 712100, Shaanxi, China

China-Japan-Korea Grassland Conference on Knowledge Innovation of Grassland Science and Sustainalbe Development of Grassland Agriculture;China-Japan-Korea Grassland Conference Program Committee

Changchun(CN)

The 5th China-Japan-Korea Grassland Conference: Knowledge Innovation of Grassland Science and Sustainalbe Development of Grassland Agriculture

184-185

2014