次生裸地 的英文怎麼說
中文拼音 [cìshēngluǒde]
次生裸地
英文
secondary bare area-
There was a highly significant correlation between the highest rain intensity in 30 minutes ( abbreviated as i30 ) and rv, and no significant correlation between rainfall capacity and 130. the soil conservation effects were better than the water conservation effects. the order of importance for water and soil conservation effects in different treatments was eragrostis curvula, kummerowia atriata, ixeris denticulata, with the most significantly positive correlation between each runoff and soil loss
與裸坡相比，嚴重侵蝕地上植物籬笆的保土效果比保水效果更明顯，其中畫眉草（ eragrostiscurvula ）水土保持能力最強，雞眼草（ kummerowiaatriata ）次之，苦蕒菜（ ixerisdenticulata ）只具有保土作用；同時每次降雨產生徑流量與侵蝕量之間為極顯著相關關系。We selected two experimental sites - forest land and bare land to carry out the research. the research including : co2 concentration, temperature, air humidity and rainfall. we probed into the principle of carbon cycle in different elevation and the effect of vegetation to carbon cycle
故，本次試驗以典型的亞熱帶巖溶分佈區中的金佛山自然保護區為例，選取喬木林和裸地兩種巖溶生態系統類型作為研究對象，對co _ 2濃度、溫度、濕度、降雨量等進行觀測，探索在不同海拔高度上，其碳循環的機制及有無植被覆蓋對碳循環運行的影響。2. the range of soil co2 concentration varied with soil temperature is not the same for the soil layer and its characters and different vegetation : the varied range of topsoil is higher than that of deep soil at testing woodland ; the varied range of soil layer ( - 20cm ) is the highest than that of the other soil layers ; the range of co2 concentration varied with air temperature begins to increase in turn from woodslay and shrublay to herbage
由於植被覆蓋類型不一樣和所處的層位以及本身性質，表層帶巖溶生態系統各層的coz濃度隨溫度變化的幅度不一樣，林地表層coz濃度變化的幅度比深部大，裸地土下e0 。 zcoz濃度變化的幅度比表層和底層大，林層、灌層和草層coz濃度變化的幅度依次變小。3. it is clear that co2 concentration of epikarst ecosystem has been influenced for rain. the varied range of soil co2 concentration is mainly influenced by rain frequency, secondly the amount of rainfall for the epikarst ecosystem of woodland and uncovered land
3大氣降水對表層帶巖溶生態系統各層coz有明顯的「沉澱」作用，影響林地與裸地土壤各層coz濃度降低的幅度主要取決于降雨的頻率，其次才是降雨量，而影響植被? ?空氣系統各層co 。分享友人