防护林科技
防護林科技
방호림과기
PROTECTION FOREST SCIENCE AND TECHNOLOGY
2015年
6期
1-3
,共3页
黑土区%农林复合%土壤容重%土壤孔隙度%土壤贮水量
黑土區%農林複閤%土壤容重%土壤孔隙度%土壤貯水量
흑토구%농림복합%토양용중%토양공극도%토양저수량
black soil region%agroforestry%soil bulk density%soil porosity%soil water storage
为探索黑土区不同农林复合模式对土壤水文性质的影响，采用环刀法测定了落叶松－大豆模式和杨树－大豆模式土壤的孔隙度和贮水能力。结果表明：（1）2种复合模式上层土壤（0～20 cm）容重和孔隙度改善明显；（2）杨树－大豆模式改善土壤孔隙状况、增加土壤贮水能力方面要好于落叶松－大豆模式和纯大豆模式；（3）2种复合模式和纯大豆模式土壤贮水性能垂直空间变异性较明显，随着土壤层次的加深，土壤贮水量减小。
為探索黑土區不同農林複閤模式對土壤水文性質的影響，採用環刀法測定瞭落葉鬆－大豆模式和楊樹－大豆模式土壤的孔隙度和貯水能力。結果錶明：（1）2種複閤模式上層土壤（0～20 cm）容重和孔隙度改善明顯；（2）楊樹－大豆模式改善土壤孔隙狀況、增加土壤貯水能力方麵要好于落葉鬆－大豆模式和純大豆模式；（3）2種複閤模式和純大豆模式土壤貯水性能垂直空間變異性較明顯，隨著土壤層次的加深，土壤貯水量減小。
위탐색흑토구불동농림복합모식대토양수문성질적영향，채용배도법측정료락협송－대두모식화양수－대두모식토양적공극도화저수능력。결과표명：（1）2충복합모식상층토양（0～20 cm）용중화공극도개선명현；（2）양수－대두모식개선토양공극상황、증가토양저수능력방면요호우락협송－대두모식화순대두모식；（3）2충복합모식화순대두모식토양저수성능수직공간변이성교명현，수착토양층차적가심，토양저수량감소。
In order to explore the effects of different argoforestry models on soil hydrological properties in black soil region ,soil porosity and the capacity of water storage for Larix olgensis‐soybean and Populus simonii × P .nigra‐soybean were determined by using cutting‐ring method .Result shows that :(1) The bulk density and porosity in the upper soil (0‐20 cm) are significantly improved by using two compound models ;(2)Populus simonii × P .nigra‐soybean model in terms of improving soil porosity conditions and increasing soil water storage is optimal than that of Larix olgensis‐soybean model & pure soybean model;(3) The vertical spatial variability of the two compound mod‐els and the soybean model is obvious .Water storage reduce with the increase of soil depth .
