山区农户生态系统的生态经济分析
严昌荣 覃章良 沈作奎
The Ecological and Economic Analysis of Farmer Househeld System in Mountain Area of Hubei
Yan Chang-rong Qin Zhang-liang Shen Zuo-kui
植物学报 . 1995, (专辑2): 163 -167 .