PDF(5526 KB)
PDF(5526 KB)
PDF(5526 KB)
松嫩高平原黑土区耕地利用系统安全影响因子作用机理研究——以黑龙江省巴彦县为例
Effect Mechanism Research of Influential Factors of Cultivated Land Use System Security of Black Soil Region in Songnen High Plain:A Case Study of Bayan County in Heilongjiang Province
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