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一、试验研究方法(一)试验地的设置:试验区设在长汀县河田水东坊水土保持试验场。原有植被为稀疏马尾松小老头树,每亩密度100株以下,土壤为黑云母花岗岩发育的红壤,侵蚀严重,属强度水土流失区。在试验区内,选择连片的强度水土流失地270.9亩,营造黑荆树水土保持林200亩,刺槐林21.3亩,刺槐、紫穗槐混交林41.8亩,马尾松林2.8亩,无造林对照区5亩。
First, the experimental research methods (A) the experimental site settings: The experimental area is located in the field of Changting County, Watertown water and soil conservation test site. The original vegetation is sparse Pinus massoniana tree, density of less than 100 per acre, the soil is biotite granite red soil, severe erosion, is a strength of soil erosion area. In the experimental area, 270.9 mu of contiguous soil and water loss was selected to construct 200 mu of Acacia rubra forest, 21.3 mu of acacia forest, 41.8 mu of acacia and amorpha-rhododendron mixed forest, 2.8 mu of masson pine forest and no afforestation control area 5 acres.