spot grazing 中文意思是什麼
spot grazing
解釋
牧斑-
The study is based on household data of spot check, investigated land use data on landform section, local domestic statistical data, meteorological observation data, land use data by remote sensing and conventional investigation. methods of statistics analysis, yoss marginal analysis, geo - statistics analysis and methods of historical geography were employed in this study. mechanism and environmental effects of land use option by farming and grazing households are studied from the aspects of ecological suitability, economic feasibility, and social acceptability
本文以農牧戶抽樣調查、地形剖面調查、統計年鑒、氣象觀測、遙感和常規調查的土地利用等數據和資料為依據，運用統計分析、邊際效益分析、地學分析和歷史地理研究等方法，從生態適宜性、經濟可行性、社會可接受性等方面研究了農牧戶土地利用選擇機制及由此引起的環境效應。
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