到一定时候，这些事情将不再发生，除了大象或许会像马一样帮助人类的大陆运输和林地开垦。
In time, there will be little of such things, other than perhaps elephants assisting humans much like horses for transportation or the clearing of the land.
国会最近的农业法案本应通过削减农业补贴，加重林地保护计划，减少美国农民开垦种植的刺激。
Congress's recent farm bill was supposed to dull the incentives for American farmers to plant on marginal lands by slashing farm subsidies and beefing up conservation programmes.
耕地增加的主要来源是林地转变以及未利用土地的开垦，二者分别占到28.13%和27.50%。
The main increase of cultivated land was from forest land and non-use land, the rates were 28.13% and 27.50%.
林地被开垦破坏后，坡面土壤元素的空间分布受人为犁耕活动、侵蚀沉积搬运过程和元素性质的影响。
After forestland being reclaimed, spatial distributions of soil elements would be affected by plowing, erosion-deposition-transportation, and soil element properties.
林地被人为开垦破坏后，加速侵蚀是导致坡面土壤养分流失的根本原因。
Man made accelerated erosion is a key reason for soil nutrient loss after forestlands were disturbed by human being.
对子午岭林区林地及开垦地进行野外调查及室内分析，探讨人为加速侵蚀对土壤肥力可持续性的影响。
The effect of accelerated erosion on soil sustainable function is researched in this paper, using field investigation and analytic data.
对子午岭林区林地及开垦地进行野外调查及室内分析，探讨人为加速侵蚀对土壤肥力可持续性的影响。
The effect of accelerated erosion on soil sustainable function is researched in this paper, using field investigation and analytic data.
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