forest land amelioration [林] 林地土壤改良
The purpose of this paper is to provide recommendations for the amelioration of subject system of the collective land ownership.
研究目的：对完善集体土地所有权主体制度提出建议。
The purpose of this paper is to explore the amelioration of the exertion procedure of rural collective land ownership in China.
研究目的：完善中国农村集体土地所有权行使程序。
Soil amelioration and ample supply of nutrients in the form of fertilizers is needed to convert poor soils into productive agricultural land.
土壤改良和增施肥料可使这些土壤逐步转变成具有农业生产力的土壤。
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