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河西走廊农户生态系统农田能流和物流数量特征的研究
被引:20
作者:
李发弟
机构:
[1] 甘肃农业大学畜牧系
来源:
关键词:
agroecosystem;
energy flow;
nutrient cycling;
Hexi Corridor;
D O I:
10.13292/j.1000-4890.1993.0109
中图分类号:
学科分类号:
摘要:
河西走廊农户生态系统农田能流和物流数量特征的研究李发弟(甘肃农业大学畜牧系,兰州730070)QuantintiveCharacteristicsofEnergyFlowandNutrientCyclingofFarmlandinaFarmEcosysteminHexiCorridor¥LiFadi(DepartmentofAnimalHusbandry,GansuAgriculturalUnitversity).ChineseJour-nalofEcology,1993,12(6):37-40.Quantitativecharacteristicsofenergyflowandnutrientcyclingoffarmlandsubsysteminafarmecosys-teminHexiCorridorwerestudied.Theresultsshowedthatthedeflreeofopening,inputandoutputwerehigh,theratioofoutputtoinputofsubsidyenergy,nitrogenandphosphorusofthefarmlandsubsy
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页码:37 / 40
页数:4
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