农林复合系统水分效应研究  

Study on Water Efficiency of Agroforestry

作　　者：孟平[1,2] 宋兆民[1,2] 张劲松[1,2] 陆光明[1,2] 

机构地区：[1]中国林业科学研究院林业研究所 [2]中国农业大学资源与环境学院

出　　处：《林业科学研究》1996年第5期443-448,共6页Forest Research

基　　金："八五"国家科技攻关"农林复合系统结构;功能研究"专题

摘　　要：运用水量平衡原理，并结合土壤水分动力学法，研究了农林复合系统中林—草×牧模式、林网—桐粮（小麦）间作模式和林网—梨×粮（小麦）间作模式的水分效应。结果表明：（１）林×草×牧模式中，林木对降水具截留作用，截流量不足降水量的１０％，故对林下牧草的生长影响不大；（２）林网—桐×粮（小麦）间作模式可降低１２．０％的农田蒸散耗水量；（３）林网—梨×粮（小麦）间作模式中，０～４０ｃｍ土层含水量比对照点约高１４．０％。This paper,applying the principle of water balance and soil water dynamics, studies the water efficiency of agroforestry such as,that of tree herbage+husbandry pattern, shelternet-paulownia+crop intercropping pattern and shelternet-pear+crop intercropping pattern. The results show that: (1)In the tree-herbage+husbandry pattern,the tree could intercept the precipitation,but the interception amount is less than 10% of the whole year′s precipitation, so the interception could not bring promising effect to the herbage under the trees. (2)The shelternet-paulownia+ crop intercropping pattern could reduce 12.0% of field evapo transpiration. (3)In the shelternet-pear+crop intercropping pattern,the soil water content at 0～40 cm depth is about 14.0% more than that of the control spot,which is helpful to wheat′s filling.

关 键 词：黄淮海平原 农林复合系统 水分效应 

分 类 号：S753.536[农业科学—森林经理学] S715.7[农业科学—林学]