草地农业生态系统
Grassland farming ecosystem
pastoral agriculture ecological system
Grassland agri-ecosystem
the grassland agro-ecosystem
grassland agroecosystem
grassland agro-ecosystem
grassland agriculture ecosystem
grassland agro ecological system
可持续农业生态系统
Sustainable agro-ecology system
农田生态系统结构
Structures of field ecosystems
农业生态系统
Ecosystem of agriculture
Agro-ecosystem
agroecosystem
agrq-ecosystem
Agriculture e-cosystem
Agriculture ecosystem
agricultural ecological system
agroecosystems
Agricultural ecosystem
agriculture ecological environment
agricultaral ecosystem
Agricultural
Animal husbandry
agroccosystcm
Agri-ecosystem
Agro ecosystem
agro-ecological system
Eco-agriculture economic system
Agro-ecology system
agriculture ecological system
agricultural ecosystems
agri-ecological system
fertility maintaining practice
agro_ecological system
Agro-ecosystems
agricultural eco-system
agro－ ecosystem
农业生态系统评价
Assessment of agro-eco-system
山地农业生态系统
Upland agricultural ecosystem
中国科学院地理研究所农业生态系统试验站
Experiment Station for Agro-ecological Systems
Institute of Geography
acadmia sinica
中国科学院栾城农业生态系统试验
Luancheng Agro-Ecosystem Experimental Station of Chinese Academy of Sciences
中国科学院栾城农业生态系统试验站
Luancheng Agro-Ecosystem Experimental Station of Chinese Academy of Sciences
生态系统结构和功能
structure and function of ecosystem