Lichen fields-blooms of orange and gray over red sand and crusts of blackish gypsum-keep the soil stable and are a critical source of food for invertebrates.
地衣区是指红色沙石和黑色石膏地表之上的橙色及灰色植被区，它能稳固土壤，是无脊椎动物最关键的食物来源。
The effective water in sand, red soil, and brown soil were increased by 32.
以表层喷洒的方式分别加入沙、红壤和棕壤中，沙的有效含水量增加32。
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