马尾松酸枣人工混交林生产力和林木生长规律的研究

Studies on the Productivity and Tree Growth Law of the Artificial Mixed Forest of Masson’s Pine and Spine Date

分析比较了２５年生马尾松与酸枣人工混交林以及马尾松纯林、酸枣纯林生产力和林木生长规律。结果表明：马尾松与酸枣人工混交林乔木层生物量为２０３．３４ｔ／ｈｍ￣２＞马尾松纯林乔木层生物量１７８．５６ｔ／ｈｍ￣２＞酸枣纯林乔木层生物量１０７．０１ｔ／ｈｍ￣２；马尾松与酸枣人工混交林林分蓄积量为３２７．３６ｍ￣３／ｈｍ￣２＞马尾松纯林蓄积量２６１．８２ｍ￣３／ｈｍ￣２＞酸枣纯林蓄积量２１４．７２ｍ￣３／ｈｍ￣２；马尾松与酸枣混交可改变树种单调状况，防止地力下降，提高林地生产力。

The results indicate that the arbor layer biomass of the artificial mixed forest of Masson＇s pine andspine date, the pure forest of Masson＇s pine and the pure forest of spine date is 203．34t／hm^2，178．56t／hm^2and 107．01t／hm^2 respectlvely；the stand stocking of the above forests is 327．36m3／hm^2．261．82m3／hm^2 and214．72m3／hm^2 respectively;and the mixture of Masson＇s pine and spine date may change the monotonoustree species situation，prevent the soil fertility reduction and increase the forest land preductivity.