杉木根 的英文怎麼說
中文拼音 [shāmùgēn]
杉木根
英文
chinese fir root-bark-
Distribution of fine roots in a mixed cunninghamia lanceolata tsoongiodendron odorum plantation
杉木觀光木混交林細根的分佈Energy change during decomposition of fine roots of chinese fir and tsoongiodendron odorum in a mixed forest
混交林杉木觀光木細根分解過程能量變化Inoculation effect of ectomycorrhizal fungi on cunninghamia lanceolata
外生菌根真菌對杉木的接種效應This thesis took the mature fir forestland in northern of fujian province as research areas by collecting out 154 of 1342 subcompartments and using the method of forestland evaluation value, it calculated the growing rent rate of all the subcompartments according to the different land quality grades
摘要以福建省北部為研究對象，收集杉木成過熟林小班1342個，選取小班154個，採用林地期望價法計算各小班的地租，根據立地質量等級不同，用各地類中地租最大值與該地類平均地租的比值，確定閩北用材林林地標準地租基於平均地租的上浮比例。The result showed that the biomass of different organs of chinese - fir treated with aqueous extracts of schima superba, castanopsis fargesii and pinus massoniana after six years were increased in some degree, the higher the concentration was, the higher the positive effect was, and low concentration had positive effect on the bark, branch and litter biomass distribution, high concentration had positive effect on the leaf, root and stem biomass distribution ; that the biomass of chinese - fir treated with cunninghamia lanceolata after six years were decreased, the higher the concentration was, the higher the inhibited effect was, and low concentration had positive effect on the leaf, bark, root, branch and stem biomass distribution, high concentration had positive effect on the litter biomass distribution
結果表明絲栗栲、馬尾松、木荷水浸液處理杉木6年後，各器官的生物量有不同程度的提高，隨著濃度加大其促進作用增強，在低濃度時有利於皮、枝和枯枝落葉生物量分配率，高濃度時有利於葉、根、乾的生物量分配率；杉木水浸液處理杉木6年後，各器官生物量有不同程度的降低，隨著濃度加大其抑制作用增強，在低濃度時有利於葉、皮、根、枝和乾等各器官生物量分配率，高濃度時有利於枯枝落葉生物量分配率。The self - poisoning effects of chinese fir plantation are studied through the seed germination experiment with the extracts of organs, bulk soils and rhizosphere soil of different rotation plantations. the results are as follows : there are some poisonous substances inhibiting germination of chinese fir seeds in soils of chinese fir plantations. the inhibiting effect becomes stronger and stronger with increase of planting generations. extracts from the organs of chinese fir trees also have some inhibiting effects on seed ' s germination, but the effect of leaf is the strongest. lower concentration extracts of underground vegetation may be favorable to the seed ' s germination whereas the higher concentration will reverse the results. it indicates that the “ self - poisoning ” effects of chinese fir plantations might be one of the reasons for poor natural regeneration and soil degradation of chinese fir plantation
利用不同栽植代數杉木人工林根際土、非根際土及杉木各器官浸提液進行杉木種子發芽試驗，研究杉木人工林自毒作用，研究結果表明：杉木林根際土及非根際土中均存在抑制杉木種子萌發的物質，隨栽植代數增加抑制作用更趨明顯；杉木各器官浸提液對杉木種子萌發也有抑制作用，其中以杉木葉的抑制作用最為明顯，杉木林下常見植物對杉木種子發芽則表現為低促高抑效應，說明杉木人工林存在自毒作用，這可能是杉木連栽障礙的原因之一。Zhenghe county was divided into three forest regions according to the features of its vegetationdistribution and flora. the author suggested that these forest regions should be transformed ， protected anddeveloped for use respectively in the light of their features
根據政和縣的植被分佈、植物區系特點，將其分為西部丘陵杉木豐產林、經濟林區；中部低山常綠闊葉林、毛竹林區；東部中山馬尾松、針闊混交林區等3個區，建議根據3個林區的特點分別進行改造、保護和開發利用。By using the data derived from the permanent plots in wugong shan forest farm, jiangxi province, china, the author of this paper analyzed and contrasted the species diversity and vertical structure between two kind of chinese fir ( cunninghamia lanceolata ( lamb ) hook ) plantations cultured by different methods of recidue management cultivation ( rmc ) and traditional cultivation
根據在江西武功山林場定位研究的調查材料，對以殘留物管理育林法和以傳統育林法所培育的兩種杉木林分，在物種多樣性以及垂直結構等方面，進行了對比分析。分享友人