Artificial Management Improves Soil Moisture, C, N and P in an Alpine Sandy Meadow of Western China

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• 作者：Gao-Lin WU^a ; ^b ; ^c ; ^{gaolinwu@gmail.com"" rel=""nofollow} ; Wei LI^a ; ^b ; ^c ; Ling-Ping ZHAO^a ; Zhi-Hua SHI^a ; ^b
• 关键词：degraded ecosystem ; fencing ; reseeding ; restoration ecology ; soil properties
• 刊名：Pedosphere
• 出版年：2011
• 出版时间：June 2011
• 年：2011
• 卷：21
• 期：3
• 页码：407-412
• 全文大小：102 K

文摘

Regeneration of degraded grassland ecosystems is a significant issue in restoration ecology globally. To understand the effects of artificial management measures on alpine meadows, we surveyed topsoil properties including moisture, organic carbon (SOC), nitrogen (N), and phosphorus (P) contents five years after fencing and fencing + reseeding management practices in a sandy meadow in the eastern Qinghai-Tibetan Plateau, northwestern China. Both the fencing and fencing + reseeding management practices significantly increased soil moisture storage, SOC, total N, available N, total P, and available P, as compared to the unmanaged control. Fencing plus reseeding was more effective than fencing alone for improving soil C, N, and P contents. These suggested that rehabilitation by reseeding and fencing generally had favorable effects on the soil properties in degraded sandy alpine meadows, and was an effective approach for restoration of degraded meadow ecosystems of the Qinghai-Tibetan Plateau.