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马尾松土壤
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  in soil
     Effect of Ectomycorrhizal Fungi on the Activities of Enzymes in Soil
     外生菌根真菌侵染马尾松土壤酶活性变化研究
短句来源
     It also finds that the quantity of bacteria, actinomyces and fungi in soil under masson pine plantation of second rotation is more less than that of first rotation, especially the quantity of azotobacter.
     土壤中细菌、放线菌、真菌和固氮菌在二代马尾松土壤中的数量明显少于一代马尾松。
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  “马尾松土壤”译为未确定词的双语例句
     C、N disturbance had great influence on the catalase enzyme activity in P. massoniana soil, high N and low C had greater effect on it, it is not significant to the other three forest type.
     施C、N 对马尾松土壤过氧化氢酶活性影响较大,以高N 和低C 干扰效果较好,其它林地各干扰间差异不明显。
短句来源
     STUDIES ON THE RELATIONSHIP BETWEEN SOIL PROPERTY CHANGES AND SOIL DEGRADATION UNDER 1ST AND 2ND ROTATION MASSON PINE PLANTATION AT DAQINGSHAN
     大青山一二代马尾松土壤性质变化与地力衰退关系的研究
短句来源
     A study on soil microflora of planting eleven years’ Masson pine
     11年生马尾松土壤微生物区系研究
短句来源
     C、N disturbance didn't influence the protease activity of the P. massoniana soil obviously. Low N can increase protease activity of C. japonicum , B.utilis and P.asperatasoil.
     施C、N 对马尾松土壤蛋白酶活性无明显影响,低N 可提高连香树、桦树和云杉土壤蛋白酶活性。
短句来源
     It is demonstrated that the soil (86.96×10~6 t),organic matter( (2 630 160 t)), (N 128 957 t), (P 45 183 t) and (K 1 488 426 t) can be reduced per year but the return of nutrients (N 207 204 t, (P 7 539 t), K 33 804 t) through the tree litter is apparent.
     通过光合作用,每年固定CO2353×104t、释放O2302.9×104t,森林过滤净化空气67966×108m3,马尾松土壤多贮存CO23947.1×104t;
短句来源
  相似匹配句对
     Study on chemical properties of rhizosphere soil under Pinus massoniana forest
     马尾松根际土壤化学性质分析
短句来源
     Studies of the Soil Fertility of Aerially Seeded Pinus massoniana Stands
     马尾松飞播林土壤肥力研究
短句来源
     soil fertility;
     土壤肥力;
短句来源
     And thus function could not be ignored in the soil water and salt movement and redistribution in saline grassland.
     土壤含水.
短句来源
     1 was 95% for \%Pinus thunbergii,\% 89% for \%P.
     马尾松 89%;
短句来源
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  in soil
The content of NH4+-N, available phosphorus, available potassium, and total phosphorus in soil under canopy were 13.33%, 20.04%, 16.52%, and 4.30% higher than those in gap.
      
Daily changes in soil water content, transpiration, and evaporation of the Caragana intermedia woodland with different vegetation coverage, slope gradient, and slope aspect were simulated from 1971 to 2000.
      
However, recent studies have documented that the practice of this system has led to dramatic decreases in soil fertility and forest environment as well as in productivity.
      
The relationships of fine root biomass, SRL and RLD with available nitrogen in soil, average soil temperature per month in 10 cm depth and soil moisture content were analyzed.
      
Seasonal dynamics of fine roots was associated with available nitrogen in soil, soil temperature in 10 cm depth and moisture content.
      
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This article emphatically reviews the changes of soil physical properties, chemical properties, biochemical activities and soil microbe species and their relationship with the growth of masson pine of 1st and 2nd rotation plantation at the similar conditions. It shows that masson pine can ameliorate soil physical properties, especially to the layer 0~20 cm. Successive rotation of masson pine improve the contents of organic nutrient a little in half matured stand while the contents of avail. N, rapidly avail....

This article emphatically reviews the changes of soil physical properties, chemical properties, biochemical activities and soil microbe species and their relationship with the growth of masson pine of 1st and 2nd rotation plantation at the similar conditions. It shows that masson pine can ameliorate soil physical properties, especially to the layer 0~20 cm. Successive rotation of masson pine improve the contents of organic nutrient a little in half matured stand while the contents of avail. N, rapidly avail. P, Ex Ca 2+ and Ex Mg 2+ apparently decrease. The activities of soil polyphenol oxidase, protease and urease decrease, but soil catalase, invertase and acid phosphorylase in the layer 0~40 cm increase. It also finds that the quantity of bacteria, actinomyces and fungi in soil under masson pine plantation of second rotation is more less than that of first rotation, especially the quantity of azotobacter. The research results will support scientific data and scientific basic for reasonable management of masson pine plantation.

研究了相似立地条件下 ,一二代马尾松人工林土壤物理性质、化学性质、生物化学活性、土壤微生物区系变化趋势及其与林木生长的关系。结果表明 :马尾松生长能改良土壤物理性质 ,特别是对0~ 2 0cm土层改良效果较为明显。连栽马尾松生长至中龄林阶段 ,土壤有机养分略有提高 ,但土壤速效养分N、P以及代换性Ca2 +和Mg2 +含量则明显下降 ;多酚氧化酶、脲酶和蛋白酶活性下降 ,而 0~ 40cm土壤过氧化氢酶、蔗糖酶和酸性磷酸酶活性升高。土壤中细菌、放线菌、真菌和固氮菌在二代马尾松土壤中的数量明显少于一代马尾松。该研究结果 ,将为马尾松人工林的合理经营提供科学的数据和依据。

The soil microflora of planting eleven years’Masson pine on the soils from six lithological characters were studied. The results showed: (1)The soil microbial composition of Masson pine in the six soils was similar. And bacteria of nine genus, fungi of six genus and actinomyces of two genus were separated and identified.(2)The quantities of soil microbe in the six soils were apparently different, in which the quantities order of soil microbe was: Quartzy sandstone (198.58×10~5)>Basalt (117.55×10~5)>The Quarternary...

The soil microflora of planting eleven years’Masson pine on the soils from six lithological characters were studied. The results showed: (1)The soil microbial composition of Masson pine in the six soils was similar. And bacteria of nine genus, fungi of six genus and actinomyces of two genus were separated and identified.(2)The quantities of soil microbe in the six soils were apparently different, in which the quantities order of soil microbe was: Quartzy sandstone (198.58×10~5)>Basalt (117.55×10~5)>The Quarternary Period red clay (102.43×10~5)>Feldspathic quartzy sandstone (86.98×10~5) >Coal measures siliceous sand-shale (80.24×10~5) >Metamorphic sandstone (69.86×10~5). Bacteria were dominant in the six soils, it were above ninety percent. The quantities of microbe changed with seasons. The changes of quantities of microbe in the non-rhizosphere were different from that in the rhizosphere, and the changes of quantities of bacteria, fungi and actinomyces were different too.(3)Rhizosphere effects of soil microbe of Masson pine in the six soils were apparently different and the changes ranged from 4.67 to 92.96.

对6类不同岩性发育的土体上11年生马尾松土壤微生物区系进行研究,结果表明,(1)6类土体上马尾松土壤微生物的组成无明显差异,经鉴定有细菌9个属、真菌6个属和放线菌2个属;(2)6类土体上马尾松土壤微生物的数量之间有明显差异,石英砂岩(198·58×105个)>玄武岩(117.55×105个)>第四纪红色黏土(102.43×105个)>长石石英砂岩(86.98×105个)>煤系硅质砂页岩(80.24×105个)>变余砂岩(69.86×105个);而在微生物总量中,则均以细菌的数量占优势,超过90%以上;微生物的数量随季节发生变化,根外土壤与根际土壤之间以及微生物各类群之间的变化呈不同的趋势;(3)各土体之间马尾松土壤微生物根际效应存在着明显差异,其变化范围是4.67~92.96。

Based on the data from a long-term research, Major Corpus of Forest Resources in Hunan Province, Agricultural Zones in Hunan Province(8) and related data from Hunan Water Conservancy Bureau, the public benefits of the Masson Pine stands in Hunan were evaluated. The results show that the forests in Hunan could produce 336.660 7×10~4 m~3 timber each year and its value in 9.19×10~8 yuan; while the benefits of its water holding, flood protection and water supply increase during dry seasons are 3.20×10~8,...

Based on the data from a long-term research, Major Corpus of Forest Resources in Hunan Province, Agricultural Zones in Hunan Province(8) and related data from Hunan Water Conservancy Bureau, the public benefits of the Masson Pine stands in Hunan were evaluated. The results show that the forests in Hunan could produce 336.660 7×10~4 m~3 timber each year and its value in 9.19×10~8 yuan; while the benefits of its water holding, flood protection and water supply increase during dry seasons are 3.20×10~8, 1.01×10~8 and 4.38×10~8 RMB yuan respectively. The total benefit from the forests in Hunan is 8.59×10~8 RMB yuan in tems of its soil erosion prevention, soil fertility keeping and air purification. It is demonstrated that the soil (86.96×10~6 t),organic matter( (2 630 160 t)), (N 128 957 t), (P 45 183 t) and (K 1 488 426 t) can be reduced per year but the return of nutrients (N 207 204 t, (P 7 539 t), K 33 804 t) through the tree litter is apparent. The benefit of its soil erosion prevention and soil fertility keeping reaches 17.019×10~8 RMB yuan, and that of air purification reaches 151.29×10~8 RMB yuan. The economic value of public benefits of the Masson Pine stands.

 根据多年定位测定的数据、《湖南省森林资源主要汇编》、《湖南省农业区划(8)》以及湖南省水利厅有关资料,对湖南省马尾松生态服务功能价值计量评估.结果表明:湖南省现有的马尾松每年生长木材383.6607万m3,年平均生产木材效益9.19亿元,而在其森林的水源涵养效益中,森林贮水功能效益3.20亿元,防洪效益1.01亿元,其涵养水源总效益共计4.21亿元;由于马尾松林的保护,每年湖南省少流失的土壤86.96×106m3,由此少流失的养分有机质2630160t、N128967t、P45183t、K1488426t;通过枯枝落叶归还林地的养分N207204t、P7539t、K33804t;通过光合作用,每年固定CO2353×104t、释放O2302.9×104t,森林过滤净化空气67966×108m3,马尾松土壤多贮存CO23947.1×104t;湖南省马尾松每年固土保肥效益11.389亿元,改良土壤效益5.63亿元,净化大气效益151.29亿元,马尾松林公益效能价值很大.

 
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