【摘要】 通过野外调查取样和室内实验分析,对丰宁满族自治县京冀水源保护林项目工程区内6种林分的林地水源涵养能力进行研究。结果表明:杨树纯林的枯落物层最大持水量和有效拦蓄量最大(5. 31t/hm~2、4.25t/hm~2),侧柏×山杏混交林的最小(1. 93t/hm~2、1. 57t/hm~2)。油松×山杏混交林的土壤层最大持水量和有效持水量最大(936. 66 t/hm~2,165. 32 t/hm~2),杨树纯林的最小(782. 84 t/hm~2,63. 25 t/hm~2)。6种林分中油松×山杏混交林的林地持水量最大,杨树纯林的最小。油松×山杏混交林的林地水源涵养能力最强,当地造林时可作为优选配置。更多还原

【Abstract】 We studied the water conservation capacity of 6 stands in the construction area of Beijing Hebei ecological water conservation forest project in Manchu Autonomous County of Fengning through investigation and laboratory analysis. The results show that: For maximum water-holding capacity and effective holding-capacity of litter,pure Populus forest is the largest(5. 31 t/hm~2,4. 25 t/hm~2),Platycladus orientalis × Armeniaca sibirica mixed forest is the smallest(1. 93 t/hm~2,1. 57 t/hm~2). The soil of Pinus tabuliformis × Armeniaca sibirica mixed forest has the largest water-holding capacity and available water capacity( 936. 66 t/hm~2,165. 32 t/hm~2),and the pure Poplar forest has the smallest(782. 84 t/hm~2,63. 25 t/hm~2). In 6 stands,Pinus tabuliformis × Armeniaca sibirica mixed forest’s capacity for water-holding is the best,pure Poplar forest’s is the worst.Water conservation capacity of Pinus tabuliformis × Armeniaca sibirica mixed forest is the strongest,which can use as a priority allocation in local afforestation.更多还原