祁连山东段典型植被演替过程中的土壤养分效应--以天祝县为例论文 - 免费论文网 关键词：土壤；祁连山；植被演替； 土壤 养分 [gap=1497]keywords：soil;qilian mountains;vegetation succession;soil nutrients
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variation of soil nutrients 耕地养分变化
Soil nutrients research 土壤养分研究
content of soil nutrients 土壤养分含量
vegetation and soil nutrients 植被与土壤养分
characteristics of soil nutrients 土壤养分
farmland soil nutrients 农田土壤养分 ; 耕地土壤养分
soil nutrients loss 土壤养分流失
soil nutrients change 土壤养分变化
The activity of polyphenol oxidase was not strongly correlated with soil nutrients.
但土壤多酚氧化酶活性与土壤养分相关性较差。
参考来源 - 不同生长年限苜蓿对土壤酶活性与养分的影响University kriging indicated that spatial distribution TN showed district geographic trends in different layers. The overlay analysis of spatial patterns and vegetation type were used to understand different soil nutrients distributions with different vegetation types.
不同植被类型所对应土壤全氮的空间分布则各不相同。
参考来源 - 森林不同土壤层全氮空间变异特征Different vegetation restoration on soil nutrients had significantly improved, soil organic matter, total N, total K and available N, P and K contented significantly.
不同植被恢复过程对土壤养分状况有明显的改善,土壤有机质、全氮、全钾及有效氮、速效磷、速效钾含量变化明显。
参考来源 - 盐池县植被恢复过程的景观动态与生态效应研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Hunger in Africa will be solved partly by helping farmers get the improved seeds, water pumps and soil nutrients they need for a good harvest.
向农民提供他们获得丰收所必需的良种，灌溉设备以及化肥可以部分地解决非洲的饥饿问题。
“We don’t think this can persist for too long because other limitingfactors will come into play, like water availability and soil nutrients, ” hesaid.
他说："我们认为这种趋势不会持续太长时间，因为将会出现一些限制因素，像水分的可利用性及土壤养分。"
Gravel dust (see our global ideas bank's "Saving the Planet With Gravel dust") could be used to supplement the soil and increase soil nutrients even further.
碎石子可以用来补充土壤，增加土壤养分。
If your soil is very dry, you can add peat or compost, which returns nutrients to the soil.
VOA: special.2010.06.15
The waste will add more nutrients to the soil as the pot breaks down.
VOA: special.2010.06.01
The method can quickly judge the soil's ability to hold water and absorb nutrients.
VOA: special.2009.01.20
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