clear-cutting

Influence of Clear-cutting and Slash Burning on Soil Respiration in the Site of Cunninghamia Lanceolata Plantation

皆伐与炼山对杉木林地土壤呼吸的影响

from clear-cutting and herbiciding to more holistic and sustainable methods ,

能够让我们放弃皆伐和大范围的使用除草剂转而采用一些更全面和更可持续的方法。

They are like clear-cutting a forest , not removing dead wood .

这样做就好比夷平整座森林，而不是砍掉几棵枯树。

So how much clear-cutting is too much ?

那么，伐林砍木多少算是过度了呢？

While residues remaining after clear-cutting increased soil organic carbon , prescribed residues burning reduced soil organic carbon .

采伐后保留剩余物增加了土壤有机碳，而炼山却导致了有机碳含量的降低。

Owing to people 's rampant clear-cutting , the desert is rapidly occupying our living space .

由于人类肆无忌惮的森林砍伐，沙漠正在快速侵占我们的生存空间。

Some of the most clearly noticeable effects of large-scale clear-cutting , including effects on stream corridors .

一些大规模全面砍伐的最明显也是最值得关注的影响包括对河流通道的影响。

The government has allowed the clear-cutting of trees in some logging regions of Oregon .

政府已允许将俄勒冈的部分采伐区的树木伐光。

Short-term responses of grass community in clear-cutting land of sub-alpine regions to simulated global warming , Western Sichuan

川西亚高山采伐迹地草坡群落对模拟增温的短期响应

Clear-cutting and Root-sprout Regeneration Is An Efficient Way for Large-scale Reforming of Locust Forest

皆伐萌蘖更新是改造刺槐林的有效途径

The diversity indexes of clear-cutting and thinning-cutting blanks are high .

皆伐和间伐后物种多样性指数高；

A project implemented by the European Union is currently seeing seven cities and regions clear-cutting their forest of traffic signs .

在欧盟正在执行的一个计划中，七个城市和地区清除掉了林立的交通标识。

Soil Respiration , Soil Carbon and Its Response to Simulated Nitrogen Deposition in after Clear-cutting Cryptomeria Fortunei Forest

柳杉人工林皆伐后土壤呼吸和土壤有机碳对模拟氮沉降的响应

Available N concentration decreased significantly after clear-cutting and residues burning , but the reduction was almost offset after site preparation .

速效N含量在采伐和炼山后显著降低了，但是减少的量在整地后却又得到了补偿。

Biomass dynamic and nutrient accumulation of natural restoration at early stage after fallow in clear-cutting forestland of Chinese fir plantation

杉木林采伐迹地撂荒后植被恢复早期的生物量与养分积累

That 's because less clear-cutting may mean less malaria , according to a paper out this week in the journal Emerging Infectious Diseases .

本周《新发传染病》上刊登的一篇文章指出，这是因为砍伐树木越少就有可能使疟疾发作的越少。

I knew that strip mining was tearing up many scenic areas and that clear-cutting was causing widespread damage in the mountains .

我知道，露天采矿正在毁掉许多风景区，砍掉成片森林给山区造成广泛的破坏。

After clear-cutting and slash-burning , soil habitat changes markedly , how will soil respiration responds has attracted much attention .

皆伐火烧后土壤生境条件发生显著变化，土壤呼吸将作出怎样的响应已引起人们极大关注。

Nutrient Contents and Enzyme Activities in the Soil of Cunninghamia lanceolata Forests of Successive Rotation and Natural Restoration with Follow after Clear-Cutting

杉木林采伐迹地连栽和撂荒对林地土壤养分与酶活性的影响

Cutting is an important part of the forest business activities . In clear-cutting forestland soil fauna community characteristic is usually used as an important index of soil fertility .

采伐是森林经营活动的重要组成部分，采伐迹地中土壤动物群落特征通常可以作为土壤肥力的重要评价指标。

Last years heavy flooding in the North , made worse by the populations clear-cutting of mountains for food and fuel , has severely impacted this years harvest .

去年北韩发生严重水灾，北韩人为种粮食和获取燃料而将山上的树木全部伐光，使灾情进一步恶化，严重影响了今年的收成。

Clear-cutting is not suitable especially for those forests where the soil is frozen , and the cutting intensity for larch forests in valley should be controlled within 8 % and 15 % .

谷地落叶松林采伐强度应该控制在8%～15%，低强度择伐和常规更新手段，对谷地落叶松林进行经营活动的影响不明显。

Based on the physical principles of hydrological phenomena in small forested watershed , a mathematical model of rainfall-runoff process is proposed and validated in this paper . The model is used to analyze and predict runoff changes caused by clear-cutting or afforestation .

本文从森林流域水文过程的物理机制出发，研制了降雨径流过程的数学演算体系和计算模型，并用于分析预测小流域森林采伐和造林所引起的径流变化。

In order to actualize quality education roundly and to deepen teaching reforms , labor and technology lessons should innovate in renovating teaching concepts , clear-cutting teaching methods , optimizing teaching lessons , and so on , to cultivate qualified and able people with innovation qualities .

为全面实施素质教育，深化教学改革，劳动技术课应在更新教学观念、明确教学目标、优化课堂教学等方面创新，以培养有创新素质的合格人才。

Compared to the diversity index , richness index and evenness index of unclear-cutting forestland , the three indexes of clear-cutting forestland were lower . This is due to be that clear-cutting forestland was disturbed serious , so that the environment changed .

比较采伐迹地与非采伐迹地的多样性指数、丰富度指数和均匀度指数得出，采伐迹地的各种指数值都较低，这是由于采伐迹地受人为干扰程度较大，使得环境发生了变化。

Overall , forest clear-cutting on soil respiration in response of nitrogen deposition shows that in the early time the nitrogen deposition can promote soil CO2 emissions , at later it has a gradual inhibition of soil respiration rate , and ultimately to reduce CO2 emissions from soil .

总体来看，皆伐林地土壤呼吸对一年的氮沉降响应表为由初期促进土壤CO2的排放，到中期逐渐抑制土壤呼吸速率，最后降低土壤CO2排放。