黄淮海平原豫北地区农林业系统的能量研究  

Energy study on agroforestry systems in northern Hennan Huanghuaihai plain

作　　者：吴刚[1] 冯宗炜[1] 

机构地区：[1]中国科学院生态环境研究中心

出　　处：《应用生态学报》1994年第4期355-359,共5页Chinese Journal of Applied Ecology

基　　金：中国科学院封丘农业生态实验站基金

摘　　要：对黄淮海平原豫北地区农林业系统３种群落类型（沙兰杨－小麦·玉米（ＰＯＴＺ）、泡桐－小麦·玉米（ＰＡＴＺ）和苹果－小麦·花生（ＭＴＡ））进行了研究，结果表明，ＰＯＴＺ类型的年群落净固定能量为４３．６２３５×１０１０Ｊ·ｈａ－１，ＰＡＴＺ为４５．６４２６×１０１０Ｊ·ｈａ－１，ＭＴＡ为４９．６０００×１０１０Ｊ·ｈａ－１．年群落现存能量分别为５５．２１７４×１０１０，５７．７５９５×１０１０和７８．４６９９×１０１０Ｊ·ｈａ－１；群落的光能利用率分别为１．０００，１．０４７和１．１３８％．群落的能量效率分别比传统的农田系统增加１１．８３、１４．４５和２８．２５％．在农业林业系统中，苹果－小麦·花生群落类型为最佳群落类型．Energy study on three agroforestry systems in northern Henan Huanghuaihai plain shows that the annual net energy fixed by Populus×euramericana-Triticum and Zea mays(POTZ) system is 43. 6235×1010J· ha-1, that by Paulownia-Triticum and Zea mays(PATZ) system is 45. 6426×1010J· ha-1, and that by Mains pumila-Triticum and Arachis hypogaea(MTA) system is 49. 6000 ×1010J·ha-1. The existing energy is respectively 55. 2174×1010, 57. 7595×1010 and 78. 4699×1010·J· ha-1, and the utilization efficiency of light energy is respectively 1. 000, 1. 047 and 1. 138%. In comparing with farmland system(FLS), the energy efficiency of thes, three agroforestry systems increases by 11. 88,14. 45 and 28. 25%, respectively. From the viewpoint of energy, MTA system is the optimal one.

关 键 词：农林业系统 群落类型 能量 农业生态学 

分 类 号：S181[农业科学—农业基础科学]