desert soil 中文意思是什麼

desert soil 解釋
荒漠土壤
  • desert : adj 荒蕪的,不毛的;沙漠的;無人的。 a desert island 荒島。n 1 沙漠;荒漠。2 〈比喻〉荒涼的境地;...
  • soil : n 1 泥土,土壤;土質。2 土地,國土。3 滋生地,溫床。4 農業生活,務農。n 1 臟東西,污物,污穢,污...
  1. So these karst series problems are lowness ability of making soils, distributing odds of surface water and groundwater, leakiness of fountain, alkalescence of circumstance, lowness of bio - diversity, rapidness converse succession of vegetation and fragility of soil character and entironment. and karst region produces many problems, e. g. rock desert, soil erosion and degeneration because of artificial influence and destruction

    巖溶空間介質具有地上地下雙層結構,可溶巖造壤能力低,巖溶水空間分佈不均、地表地下水關系密切、水源易漏失,偏堿性環境、生物資源集聚程度低,植被逆向演替快、順向演替難,巖溶地質與生態環境十分脆弱,受到人為因素的影響和破壞,極易產生石漠化、土壤侵蝕與退化等一系列問題。
  2. According to its cause and characteristics of landuse, we can classify such area into two typical areas : area with soil and water erasion and area with land desert

    根據其成因和西部土地資源利用特點,可將西部土地生態脆弱區劃分為兩種類型:水土流失嚴重型生態環境脆弱區和土地沙漠化型生態環境脆弱區。
  3. Effects of mulching on grapery soil in arid desert area

    乾旱荒漠區不同覆蓋對釀酒葡萄園土壤的綜合效應研究
  4. The thesis starts with chinese desertification prevention and cure lav per se and the problems in the relationship of desertification prevention and cure law, water and soil maintenance law, grassland law, forest law, soil administration law and environment protection law, searching out the limitation of chinese desert prevention and cure jurisprudence

    本文針對我國《防沙治沙法》本身以及協調《防沙治沙法》和《水土保持法》 、 《草原法》 、 《森林法》 、 《土地管理法》 、 《環境保護法》等法的關系中存在的問題入手,尋找到我國防沙治沙法律體系中存在的缺陷。
  5. There is a period of soil contents range from ten to twenty five days over the humid discussed area in summer, and the period is not obvious at the discussed zone of close oasis desert area in summer and winter. ( 2 ) soil temperature exits several periodic variations of different depths ranging from six to twenty four days in heihe region, and nine to thirty days in gaize and shiquanhe region. it also shows that gradient of soil temperature affects on the soil content movement more greatly in summer. ( 3 ) the land surface temperature of yangtze river lower region is retrieved from noaa - ahvrr data

    ( 2 )根據土壤溫濕資料,採用功率譜分析、 pca分析等方法,分析了兩種典型下墊面土壤溫度的時空分佈特徵及其對土壤水分運動的影響,發現研究區土壤溫度除日和年變化周期外還存在6 30天的不同周期;下墊面的非均勻性及其季節變化及溫度梯度變化對土壤水分運動有很大影響,冬季溫度梯度變化對土壤含水量影響大於夏季溫度梯度對上壤含水量變化的影響,且溫度梯度與水分運動方向相反。
  6. That fast - growing forestry in desert can fixup sandbank and meliorate soil, improve environment and prevent waste water from flowing into river

    在沙漠利用污水灌溉速生林,可固定沙丘,改良土壤;改善生態環境,實現污水零排放。
  7. This paper summarized the disturbance effect of rodents on soil ( pedogenesis, patch formation, and physical and chemical properties ) and vegetation ( species diversity, productivity, and seed dispersion ), aimed to illustrate the contributions of rodents activities to desert ecosystem

    本文主要從鼠類活動對土壤(包括土壤發生過程、土壤斑塊的形成、土壤理化性質)和植物群落(包括物種多樣性、生產力、植物種子)的擾動效應做了歸納總結,旨在闡明鼠類在荒漠生態系統中的作用。
  8. Brown desert steppe soil

    棕色荒漠草原土
  9. Grey desert steppe soil

    灰色荒漠草原土
  10. Effects of grazing on soil microorganisms and their seasonal changes in desert steppe

    放牧對荒漠草原土壤微生物的影響及其季節動態研究
  11. Management of soil moisture for desert steppe vegetation rehabilitation in western loess plateau

    黃土高原西部荒漠草原植被恢復的土壤水分管理研究
  12. The dried lake bottom and lake shore have already had 1500km2 become desert, among 108km2 being barren and loose soil. the rate of desertification is 39. 8 km2 ? a - 1 in the district

    乾涸的湖底及湖濱已有1500km2淪為鹽漠,其中寸草不生的疏鬆裸地108km2 ,沙漠化正以每年39 . 8km2的速度在擴展。
  13. 3 eight communities are identified by gradient analysis in desert - oasis ecotone, and species are divided into 5 ecological groups. dca ordination is superior to cca and dcca. variation of vegetation explained by environmental and spatial factors reaches 23. 4 % ; among these the species matrix explained by non - spatial soil factors account for up to 11. 5 % of variation, spatial variation that is not shared by soil factors explains up to 11. 6 %, their interaction explains up to 0. 3 %

    3 、通過梯度分析,阜康荒漠綠洲過渡帶群落可分為8個類型,物種可分成5個生態類型; dca排序效果優于cca和dcca ;土壤和空間因子解釋了植被分異的23 . 4 ,其中土壤因子佔11 . 5 ,空間因子佔11 . 6 ,二者交互作用佔0 . 3 。
  14. The results show that : ( 1 ) soil moisture follows a - distribution over the discussed zone of the humid area in summer, but do distribution at the researched zone vicinity of oasis desert area in winter

    結果表明: ( 1 )在研究區域不同類型的下墊面條件下,夏季土壤水分在濕潤研究區呈明顯的單峰偏態分佈,且以分佈擬合效果為最好;而在臨近綠洲的沙漠研究區則呈多峰分佈,冬季呈分佈。
  15. Degeneration problems of karst soil fertility are mostly soil leanness, vegetation reduction, and natural environment erosion and rock desert

    巖溶土壤肥力退化問題主要表現為土壤貧瘠、植被減少、水土流失和土地石漠化。
  16. To illustrate this point, vi the dynamic of the water and salt in fukang oasis will be analyzed. by comparative analysis of the dynamic of soil moisture and salinity in farmland, the abandoned land inside new oases, sand dune and the grassland periphery, the influence of dynamic state of soil moisture and salinity on the oasis stability can be clarified. thus, we may draw the following conclusion : l. at the plains in fukang, the ground water table rises gradually from south to north, and it falls in the desert

    本論文研究圍繞典型荒漠植物群落的水鹽動態變化及其對植物群落空間分佈的影響以及綠洲內的水鹽動態變化,通過綠洲農田與綠洲內撂荒地、綠洲外圍水鹽動態的對比分析,水鹽動態變化對綠洲穩定性的影響,得出以下結論: l從南至北,研究區地下水位在平原區逐漸升高,在沙漠中又降低。
  17. Red desert soil a type of coarse soil rich in salts and lime but poor in humus, formed in hot deserts

    紅漠土:一種粗糙的富含鹽類、石灰,但缺少腐殖質的土壤,多在熱帶沙漠中形成。
  18. Grey - brown desert soil

    灰棕色荒漠土
  19. The research of the subject had study thoroughly the using situation of the water and soil of ejina oasis in the downstream of the inland river in the arid area. and it had get the experience and test of the use of water and soil through study the past material. and it had make it known that the decrease of the runoff volume from headwater, the excessive cultivation area and serious waste of water are reasons for desert soil and ecotope deterioration

    本文在對位於乾旱區內陸河下游的額濟納綠洲水土資源開發利用現狀,進行全面研究的基礎上,總結了近五十年額濟納綠洲水土資源開發利用的經驗和教訓,找出了存在的問題:上游來水減少,過度開墾,水資源浪費嚴重,土地荒漠化加劇,生態環境惡化。
  20. The upper reaches of yangtze river ( uryr ) is one of important areas for conserving water and ecological defenses of our country, but there are such environmental problems as soil erosion, desert soil, degeneration of cultivated land, environmental contamination etc. the reason of causing these problems was that we had not combined environmental protection with economic development well

    作為我國重要水源涵養地和重要生態屏障的長江上游地區,長期以來,由於沒有把環境保護與經濟發展很好結合起來,導致了水土流失、荒漠化、耕地退化以及環境污染等生態環境問題,嚴重製約著區域經濟發展,並成為未來三峽工程和南水北調工程安全運行,以及中下游地區可持續發展的最大威脅。
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