Zhang Dinghua, Zhai Mingpu, Jia Liming, Lin Ping
Biological Engineering College, Fujian Normal University, FuZhou 350007.
Ying Yong Sheng Tai Xue Bao. 2002 Aug;13(8):971-4.
The change of soil moisture retention after planting mixed forest of Populus spp. and Robinia pseudoacacia was studied by comparative method. The results showed that soil moisture retention, spatial distribution of soil pore, and soil water capacity were improved and increased in sandy soil after Populus spp. and Robinia pseudoacacia being planted, and the improvement in the mixed forest of Populus spp. and R. pseudoacacia was greater than that in the pure forest of Populus spp. or R. pseudoacacia. The basic reason of soil moisture retention being improved was the increment of soil organic matter, which improved soil pore condition.
采用对比法研究了杨树与刺槐混交林种植后土壤持水能力的变化。结果表明，杨树和刺槐种植后，沙地土壤的持水能力、土壤孔隙空间分布和土壤持水量均得到改善和提高，且杨树与刺槐混交林的改善效果大于杨树纯林或刺槐纯林。土壤持水能力提高的根本原因是土壤有机质增加，改善了土壤孔隙状况。
