AGRICULTURAL DIVISION AND ECOSYSTEM

cje ›› 1984, Vol. ›› Issue (1): 43-44,46.

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AGRICULTURAL DIVISION AND ECOSYSTEM

Xian Xiaowei

Department of Geography, Lanzhou University

Received:1981-08-24 Online:1984-02-10

Abstract

Abstract: Taking Gansu province as an example, this paper discusses the relationship between agricultural division and ecosystem and stresses the guiding role of the ideas on ecosystem and ecological equilibrium in the work of agricultural division.

Key words: Pine growth potential, Monochamus alternatus, Population density, Pathogenicity, Bursaphlenchus xyloophilus, Correlation coefficient

Xian Xiaowei. AGRICULTURAL DIVISION AND ECOSYSTEM[J]. cje, 1984, (1): 43-44,46.

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AGRICULTURAL DIVISION AND ECOSYSTEM

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