生物土壤結皮

生物土壤結皮（biological soil crusts, BSCs, 簡稱生物結皮)是由藍細菌、藻類、地衣、苔蘚等隱花植物和土壤微生物及其他生物通過菌絲體、假根和分泌物等與土壤表層顆粒膠結形成的一種複合體，是乾旱和半乾旱氣候土壤表面的生物群落^[1]。生物土壤結皮遍佈世界各地，依地形、土質、氣候、植群、微生境、擾動（英語：disturbance regimes）的相異由不同物種組成。

Thumb — Hovenweep 國家紀念區（英語：Hovenweep National Monument）內的生物土壤結皮.

生物土壤結皮具有重要的生態角色，有固炭、固氮、保持結構穩定的功能。也影響土表反照率、water relations、種子發芽、維管束植物的養分含量。^[2]

生物土壤結皮一般劃分為藻結皮、地衣結皮和蘚結皮3個主要演替階段^[3]。

參考文獻

[1]
Jin, Xinying; Zhang, Xiaochong; Jin, Duo; Chen, Yun; Li, Jingyu. Diversity and seasonal dynamics of bacteria among different biological soil crusts in the southeast Tengger Desert. Biodiversity Science. 2020-06-20, 28 (6): 718. doi:10.17520/biods.2019298.
[2]
Belnap, Jayne. Cryptobiotic Soils: Holding the Place in Place. U.S. Geological Survey. August 5, 2013 [May 10, 2016]. （原始內容存檔於May 10, 2016）.
[3]
Su, Y.-G.; Li, X.R.; Zheng, J.-G.; Huang, G. The effect of biological soil crusts of different successional stages and conditions on the germination of seeds of three desert plants. Journal of Arid Environments. 2009-10, 73 (10): 931–936. doi:10.1016/j.jaridenv.2009.04.010.

外部連結

維基共享資源上的相關多媒體資源：生物土壤結皮
（英文）生物土壤結皮（頁面存檔備份，存於互聯網檔案館）, 美國地質勘探局峽谷地研究站(USGS Canyonlands Research Station)

[1] [1]
Jin, Xinying; Zhang, Xiaochong; Jin, Duo; Chen, Yun; Li, Jingyu. Diversity and seasonal dynamics of bacteria among different biological soil crusts in the southeast Tengger Desert. Biodiversity Science. 2020-06-20, 28 (6): 718. doi:10.17520/biods.2019298.

[belnap_crypto_2013-2] [2]
Belnap, Jayne. Cryptobiotic Soils: Holding the Place in Place. U.S. Geological Survey. August 5, 2013 [May 10, 2016]. （原始內容存檔於May 10, 2016）.

[3] [3]
Su, Y.-G.; Li, X.R.; Zheng, J.-G.; Huang, G. The effect of biological soil crusts of different successional stages and conditions on the germination of seeds of three desert plants. Journal of Arid Environments. 2009-10, 73 (10): 931–936. doi:10.1016/j.jaridenv.2009.04.010.

[1]

[2]

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