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以闽楠幼林林地土壤为对象,研究在高温下5种不同覆盖方式(清耕处理、地膜覆盖、杂草覆盖、枝叶覆盖、生草覆盖)对土壤性状的影响。结果表明,5种覆盖方式在高温下对土壤性状产生了影响:地膜覆盖提高了地表温度,且地膜覆盖下的地表温度上升最快,上升幅度最大,杂草覆盖、枝叶覆盖和生草覆盖则降低了地表温度,生草覆盖的降温效果最好;地膜覆盖、杂草覆盖、枝叶覆盖和生草覆盖都能提高地表湿度,其中地膜覆盖前期保湿效果最好,后期则低于清耕处理;地膜覆盖的土壤水分散失最慢最少,杂草覆盖和枝叶覆盖次之,生草覆盖的水分散失最快最多。
The effects of five different covering methods (tillage, mulching, weed cover, foliage cover and grass cover) on soil properties were studied in the forest soil of Phoebe bournei. The results showed that the five kinds of mulching methods had an impact on soil properties under high temperature: mulching increased the surface temperature and the surface temperature increased fastest under the mulching, with the largest increase rate. The coverage of weeds, foliage and grass cover The surface temperature was reduced, and the cooling effect of green grass coverage was the best. The mulching, weed coverage, branch and leaf coverage and grass coverage could all improve the surface moisture, of which the moisture conservation effect was the best in the early stage of mulching and the latter was lower than the tillage treatment; The mulch-covered soil has the slowest and least water loss, followed by weeds and foliage, and the grass covered with water has the fastest loss of water.