退耕还林联合生产水平及影响因素分析——基于安塞县和米脂县典型农户的案例研究
퇴경환림연합생산수평급영향인소분석——기우안새현화미지현전형농호적안례연구
Analysis on the level of joint production and influencing factors in the conversion of cropland to forestland program——A case study of typical farmers in Ansai county and Mizhi county
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