常見例句By using phytopopulological and dendroecological methods, this paper has studied the correlation between climate change and the age structure or tree-ring width from different altitudinal ecotones. 本文應(yīng)用種群生態(tài)學(xué)和樹木年代學(xué)的方法并結(jié)合氣象資料,研究了中部天山不同海拔高度上天山云杉(Picea schrenkiana)種群的年齡結(jié)構(gòu)以及樹木年輪寬度與氣候變化的關(guān)系。the north farming-pastoral ecotones of China 北方農(nóng)牧交錯帶The borderlines of the different biome ecotones and the gradients of species distribution in the biome ecotone have been investigated through the method of the quantitative ecology. 在大尺度水平上,邊緣效應(yīng)測度的研究主要是應(yīng)用數(shù)量生態(tài)學(xué)等方法,研究不同氣候帶之間界線的劃分及其物種分布的梯度規(guī)律性。Analysis on Land Use and Its Ecological Environmental Background in the Farming-Pastoral Ecotones in North China 北方農(nóng)牧交錯帶土地利用及其生態(tài)背景分析ECO-ENVIRONMENTAL CONSTRUCTION AND FUNCTIONAL INTEGRATION OF THE FARMLAND-PASTORAL ECOTONES IN THE NORTHERN PART OF CHINA 論中國北方農(nóng)牧交錯帶的生態(tài)環(huán)境建設(shè)與系統(tǒng)功能整合Study on species diversity of different measures of vegetation protection and restoration in the farming-pastoral ecotones in the north of China 北方農(nóng)牧交錯帶不同植被保護(hù)及恢復(fù)措施物種多樣性研究 返回 ecotones