福建闽江上游不同林地类型土壤水库蓄水量动态变化  

Dynamic Change of Soil Reservoir Storage in Different Forest Land Types in Minjiang River Upper Reaches of Fujian

作　　者：黄荣珍[1] 李凤[1] 谢锦升[2] 岳永杰[2] 杨玉盛[3] 

机构地区：[1]南昌工程学院生态环境系,江西南昌330099 [2]福建农林大学林学院,福建福州350002 [3]福建师范大学地理科学学院,福建福州350007

出　　处：《水土保持学报》2006年第6期50-53,共4页Journal of Soil and Water Conservation

基　　金：福建省自然科学基金项目"中亚热带绿色‘土壤水库’的研究"(D0010014);福建省水保试验站项目"闽江上游不同土地利用方式水土流失及生产力的动态监测";福建省教育厅项目"杉阔混交林理水作用机制的研究"(K2001049)

摘　　要：研究不同林地类型土壤水库蓄水量变化，以期加深对森林土壤水库理水机理的认识。以裸露地为对照，封山育林地、杉木林地和木荷林地为研究对象，对其土壤水库的蓄水功能及其动态变化进行研究。结果表明：土壤水库月蓄水量大小顺序为对照〈封山育林地〈杉木林地〈木荷林地，封山育林地、杉木林地和木荷林地月蓄水量的最大值和最小值分别比对照高22．45％，32．83％，34．53％，53．51％，70．09％，79．60％。对照不同层次蓄水量的月变化都远大于林地，林地中以木荷林地的变化量最小。除了封山育林地，杉木林地、木荷林地和对照不同土层的蓄水量随深度的增加呈逐渐增大趋势，但它们土壤水库0～40cm．土层蓄水量变化都远较底层80～100cm大，对水分的调节能力比底层强。Bare land is taken as CK and enclosing ＆ tending land, Cunninghamia lanceolata and Schima superba as study objects , in order to study the mechanism of forest soil reservoir on storing and regulating run off. The results show that mean monthly water storage of soil reservoir in three forest land and the CK followed the rule： CK 〈enclosing ＆ tending land 〈 Cunninghamia lanceolata 〈 Schima superba, the maximal and minimal storage in enclosing ~ tending land, Cunninghamia lanceolata, Schima superba were 22.45%, 32.83%, 34.53% and 53.51%, 70.09%, 79.60% greater than that in the CK,respectively. Monthly changes of water storage in different soil layers of the CK were more than those in three forest land,and which were minimal in Schirna superba, Water storage increased with the increase of soil depth in Cunningharnia lanceolata, Schima superba and the CK, except of enclosing ＆ tending land, but the changes of water storage at 0-40 cm were more greater than that at 80-100 cm in all the four land, which provided stronger regulating capability.

关 键 词：林地类型 土壤水库 蓄水量 

分 类 号：S152.7[农业科学—土壤学] S715.7[农业科学—农业基础科学]