林地土壤 的英文怎麼說
中文拼音 [līndetǔrǎng]
林地土壤
英文
timbered soil-
Indicatory function of soil moisture of undergrowth vegetations in the robinia pseudoacacia forests with different densities in semi - arid region on the loess plateaus
林下植被對半乾旱區不同密度刺槐林地土壤水分環境的指示作用The activity of soil urease, acidphosphotase and invertase weakened with increase of soil depth
各林地土壤脲酶、磷酸酶和轉化酶隨著土壤剖面的加深，其活性減弱。Studies on physical ch aracters of soil in mixed forest of chinese fir and paulownia
杉木泡桐混交幼林地土壤的物理性質The characteristics of soil in natural secondary forest conservation area of yingzui mountain
鷹咀界天然次生林自然保護區林地土壤特性研究Soil anti - erodibility indexes of hippophae rhamnoides forest in loess plateau
黃土高原沙棘人工林地土壤抗蝕性指標探討Abstract : soil fertility of the plantations of paramichelia baillonii, betula alnoides, acacia mangium and altingia excelsa in tropical area of yunnan does not decline rapidly, and the physical and chemical properties of forestland are not affected greatly if the plantations can be managed properly
文摘:在雲南熱區營造山桂花、西南樺、馬尖相思、高阿丁楓等4種人工林，只要經營得當，對林地土壤理化性質並不造成重大影響，不會引起地力迅速衰退。Mongolica young stand, secondary natural forest, and the mixed forest of larix olgensis and fraxinus mandshurica rupr. countermeasures for controlling soil degradation were also recommended. the study got following results : ( 1 ) from young stand to mid - age of larix olgensis, with the closure of canopy and the decrease of undergrowth vegetation cover, soil acidity, enzyme activity, total inorganic phosphorus, available k, soil moisture and total porosity decreased significantly ; while soil organic matter content, humus component content, the amount of three main types of microbes, acid phosphatase activity, and bulk density in rhizosphere soil and non - rhizosphere soil increased with the increase of the amount of forest floor litter ; from mid - age stand to near mature stand, with the decrease of stand density and crown cover as well as the restoration of undergrowth vegetation after preliminary thinning, soil organic matter content, fulvic acid, exchangeable acidity, exchangeable aluminium, neutral phosphatase activity, total amount of inorganic phosphorus, the amount of actinomycetes, soil moisture, and total porosity in rhizosphere soil and non - rhizosphere soil apparently increased ; from near matu re stand to mature stand, soil activity acidity, organic matter content, humus component content, available phosphorus, total amount of amino acid, available k, soil enzyme activity, soil moisture, and total porosity in rhizosphere soil and non - rhizosphere soil decreased, but total phosphorus, soil acidity ( in particular, exchangeable aluminium ), and bulk density increased
結果表明： （ 1 ）從落葉松幼齡林到中齡林，隨著林冠的郁閉和林下植被蓋度的急劇下降，林地土壤酸度、土壤酶活性、無機磷總量、速效鉀、土壤水分含量、總孔隙度呈明顯下降趨勢，而根際和非根際土壤有機質含量、腐殖質各組分含量、三大類微生物數量、酸性磷酸酶活性和土壤容重隨著凋落物的增加呈明顯上升趨勢；從中齡林到近熟林，由於撫育間伐，林分密度及郁閉度下降，林下植被蓋度逐步得到恢復，根際與非根際土壤有機質含量、富里酸、交換性酸、交換性鋁、中性磷酸酶、無機磷總量、放線菌數量、土壤水分含量、總孔隙度呈明顯的上升趨勢；從近熟林到成熟林，隨著林齡的增大，根際與非根際土壤活性酸、有機質含量、腐殖質各組分含量、有效磷含量、氨基酸總量、速效鉀、土壤酶的活性、土壤水分含量和總孔隙度呈下降趨勢，而根際與非根際土壤全磷含量、土壤酸度（特別是交換性鋁）和容重呈增加趨勢。Effects of soil compaction on soil respiration in the forest land
林地土壤壓實對土壤呼吸影響的數學模型研究Research of soil respiration for desert scrubland
檉柳和梭梭林地土壤呼吸研究In 0 - 200cm light dried layer was formed and can be recovered partly after rainfall, but beneath 200cm the serious perpetual dried layer has lower water content and larger thickness and is very difficult to be recovered in short period because of the special hydrological characteristics in the loess plateau where infiltration depth is about 200cm and could not percolate into deeper layer. ( 4 ) the landscape ecology in fuxian county shows that the two kinds of forest community have not declined
（ 4 ）富縣天然山楊林和天然遼東櫟林的景觀生態特徵表明，兩類森林群落沒有出現衰退的跡象，這說明森林群落合理的內部結構不會造成林地土壤水分的嚴重虧缺，其自然氣候條件可以滿足森林群落生存、發展的需要。Soil moisture dynamic rule of artificial haloxylon ammodendron forest in kubuqi desert
庫布齊沙漠人工梭梭林地土壤水分動態規律的研究The study has investigated and compared soil physical, chemical, biochemical properties of eight stands on paired sites in mountainous regions of northeastern china, trying to look for the mechanism of soil degradation and the change trend of soil properties in different age of plantations in relations to forest productivity. the eight stands are 4 first rotation of larix olgensis plantations with different age classes, the second rotation of larix olgensis young stand, pinus sylvestris var
本文通過固定和典型樣地，對東北山地不同生長發育階段落葉松人工林和二代落葉松幼齡林以及與二代落葉松幼齡林同一塊林地的樟子松幼齡林、天然次生林、落葉松水曲柳混交林等8個林型土壤質量進行了對比與分析，深入探討了落葉松人工林土壤質量降低的機理和不同發育階段土壤質量變化規律以及與森林生產力變化的關系，並提出了林地土壤質量調控措施。Study on concentration and distribution characteristics of polycyclic aromatic hydrocarbons in soils of cinnamomum camphora stand
樟樹林地土壤多環芳烴的含量及其分佈特徵Comparison of soil physical and chemical properties among various phyllostachys pubescens plantation
不同毛竹林林地土壤理化性質特徵比較Effect of soil conservation forest depends on land surface cover of dead leave and soil condition
水土保持林的效益主要取決于林地枯落物和林地土壤狀況。Based on analysis of soil physical, chemical and biological properties, soil properties and soil integrated fertility index ( iff ) of different successional series of subalpine coniferous in western sichuan were systematically studied. the results showed soil fertility degradation of subalpine coniferous forests was mainly related to decrease of soil organic matter
從土壤物理、化學和生物學性質角度出發，系統地研究了四川西部亞高山針葉林不同演替階段土壤性質和土壤綜合肥力指標值，結果表明：川西亞高山針葉林土壤性質主要受土壤有機質的影響，人工林地土壤肥力質量退化主要由於有機質的減少並導致相關土壤物理、化學和生物學性質惡化。Based on above - mentioned analysis, the strategy and measures to prevent the soil fertility quality degradation of artificial picea mature forest and improve the stand ecological environment were put forward, including the rational management of inter - cutting down and fostering after artificial picea forest matured. because conifer - hardwood forests generally contain more tree species than pure coniferous forest, and their structure also is more complex, forestation in subalpine of western sichuan should be conifer - hardwood forests
林地土壤有機質主要來源於凋落物的分解，並受其分解速率的控制，解決當前人工成熟林地土壤退化的主要措施應為林地凋落物分解創造條件，即因地制宜地對成熟人工林進行間伐或輪伐，當前在該區域造林應避免營造針葉純林。Human intervention such as overgrazing resulted in a great decline in soil infiltration rates, which are an important reason for soil degradation and soil drought the experimental results showed that plant biomass and productivity increased significantly with the increase of soil infiltration rates
人為活動干擾，如過度放牧壓實土壤和去除地表覆被造成土壤滲透性顯著降低，是林地土壤質量退化及土壤水分缺乏的重要誘因。試驗結果表明，植物生物量和生產力隨土壤滲透速率的增大而顯著提高。It also concluded that garden area soils showed the strongest stability among all soils. 2
不同利用方式的土壤中，園地土壤有最強的穩定性，荒地?母質層和林地土壤穩定性最低。It was found that forest soils were stronger in aggregate stability compared with parent material or bare soils
在各種土地利用方式中，林地土壤的穩定性最高，母質層和荒地土壤穩定性最小，而園地的穩定性大於耕地。分享友人