闽江上游木荷与杉木人工林的持水能力和入渗特征比较

Comparison of Water-Holding Capacity and Infiltration Characters between Schima superba and Cunninghamia lanceolata Plantations in Upper Reaches of the Minjiang River

从林冠层、林下植被层、枯枝落叶层和土壤层研究木荷和杉木人工林涵蓄水分以及土壤入渗能力的差异。结果表明,木荷人工林地上部分(含林冠层、林下植被层和枯枝落叶层)的持水能力低于杉木人工林,仅为杉木人工林的76.36％,但1m深表土层的饱和贮水量为5039.5t/hm^2,比杉木人工林高323.3t/hm^2,同时木荷人工林土壤渗透性能也好于针叶林。

Water conservation and infiltration between evergreen broad-leave tree Schima superba and needle-leaved tree Cunninghamia lanceolata plantation were studied in the area located in upper reaches of the Minjiang river, Jian'ou city through plot sample data. The results showed that the ground water-holding capacities of Schima superba and Cunninghamia lanceolata plantation was 16.3 t/hm2 and 21.4 t/hm respectively. But the water-holding capacity in 1 rn deep soil layer of Schima superba plantation was much higher than that of the Cunninghamia lanceolata plantation (the former was 5 039.5 t/hm2 and the latter was 4716.2 t/hm2 respectively) . And the forest soil infiltration characters in Schima superba plantation is better than that of the Cunninghamia lanceolata plantation.