【摘要】 选择甘肃祁连山和云南省元阳梯田水源林枯落物为研究对象,对野外调查数据进行对比分析,结果表明:(1)祁连山枯落物平均厚度3.17cm,平均蓄积量为27.67t·hm-2;元阳梯田枯落物平均厚度2.33cm,平均蓄积量为6.86t·hm-2;前者比后者的枯落物平均厚度大1.4倍,平均蓄积量大4倍。(2)祁连山枯落物平均最大持水量为79.01t·hm-2,平均最大持水率为294.05%;元阳梯田水源林枯落物平均最大持水量为4.76t·hm-2,平均持水率为173.46%;前者比后者的枯落物平均最大持水量大16.61倍,平均持水率大1.7倍。更多还原

【Abstract】 Taking water conservation forest of Qilian Mountains of Gansu Province and Yuanyang terrace of Yunnan Province as research object,through field investigation and comparison on data,result shows that:(1)The average thickness and the average volume of litter is 3.17 cm &27.67t·hm-2,respectively in Qilian Mountains;the average thickness of litter is 2.33 cm and the average volume is 6.86t·hm-2 in Yuanyang terrace.The average thickness and the average volume of the former is 1.4and 4times respectively larger than that of the latter.(2)The average maximum water-holding capacity of litter is 79.01t·hm-2 and the average maximum water holdup rate is294.05%in Qilian Mountains;the average maximum water-holding capacity of litter is 4.76t·hm-2 and the average maximum water hold up is 173.46%in Yuanyang terrace;the average maximum water-holding capacity and the average maximum water hold up rate of the former is 16.61 and 1.7times larger respectively than that of the latter.更多还原