×

抚育间伐 meaning in Chinese

selection cutting of forest management
tending and intermittent cutting of forest

Examples

  1. Evergreen broad - leavedforest is classified into three types as follows : nurture type of early sapling forest , intemediate cutting type of medium sapling forest , density management type of mid - maturation forest
    将阔叶林划分为3个经营类型,分别为:初期幼龄林组成抚育类型、中期幼龄林抚育间伐类型、中龄林密度管理类型。
  2. 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
    结果表明: ( 1 )从落叶松幼龄林到中龄林,随着林冠的郁闭和林下植被盖度的急剧下降,林地土壤酸度、土壤酶活性、无机磷总量、速效钾、土壤水分含量、总孔隙度呈明显下降趋势,而根际和非根际土壤有机质含量、腐殖质各组分含量、三大类微生物数量、酸性磷酸酶活性和土壤容重随着凋落物的增加呈明显上升趋势;从中龄林到近熟林,由于抚育间伐,林分密度及郁闭度下降,林下植被盖度逐步得到恢复,根际与非根际土壤有机质含量、富里酸、交换性酸、交换性铝、中性磷酸酶、无机磷总量、放线菌数量、土壤水分含量、总孔隙度呈明显的上升趋势;从近熟林到成熟林,随着林龄的增大,根际与非根际土壤活性酸、有机质含量、腐殖质各组分含量、有效磷含量、氨基酸总量、速效钾、土壤酶的活性、土壤水分含量和总孔隙度呈下降趋势,而根际与非根际土壤全磷含量、土壤酸度(特别是交换性铝)和容重呈增加趋势。

Related Words

  1. 抚育
  2. 抚育森林
  3. 亲代抚育
  4. 抚育幼苗
  5. 抚育伐
  6. 抚育性别
  7. 抚育更新
  8. 抚育能力
  9. 森林抚育
  10. 抚育细胞
  11. 抚育更新
  12. 抚育孩子补贴
  13. 抚育烈士子女
  14. 抚育能力
PC Version

Copyright © 2018 WordTech Co.