为什么冰岛的生长季节很短？
即使生长季节缩短5%，南亚仍有超过3亿人可能受到影响。
More than 300 million people in South Asia are likely to be affected even with a 5% decrease in the length of the growing season.
迟来的积雪将有效的生长季节缩短至某一程度，使得幼苗无法自行生长。
Late-lying snow reduces the effective growing season to the point where seedlings cannot establish themselves.
科勒认为，（居住地）废弃的直接原因是高海拔地区的玉米生长季节较短，因此生产出现了问题。
Kohler attributes the immediate cause of the abandonment to problems with corn production at a high altitude during short growing seasons.
在极度贫困的国家更是如此，那里的农村居民在每个生长季节都要砍伐和烧毁森林，来为农业腾出空间。
This is especially so in desperately poor countries, where residents in the countryside slash and burn forests each growing season to clear space for farming.
这对于灌溉是有用的，但是旱季的高温、低湿度和不同于正常生长季节的白昼长度，会给一些作物的生长带来困难。
This is useful for irrigation, but the high temperatures, low humidities, and different day lengths of the dry season, compared to the normal growing season, can present difficulties with some crops.
其他考古学家已经发现导致这种遗弃的直接原因是一系列短暂的生长季节，而这将会给生长在高海拔地区玉米的生产带来压力。
Other archaeologists have identified the immediate cause of this abandonment to be a series of short growing seasons that would have put pressure on corn production at that high an altitude.
水分：容忍伏旱，但要求水分在生长季节。
Moisture: Tolerates summer drought, but requires moisture during growing season.
我们正在努力延长这种小龙虾的生长季节。
"We are looking at trying to extend the crawfish season, " he said.
未来最冷的生长季节将比过去最热的生长季节还来得热。
The coldest growing seasons of the future will be hotter than the hottest in the past.
病菌在田间条件下，只能存活两个生长季节。
The fungus could only live for two seasons under the field conditions.
在北半球，温暖的气候以及较长的生长季节促使植被大量生长。
In the Northern Hemisphere, warmer temperatures and a longer growing season allowed plants to grow more.
但是，冷冻在冰箱中，可以使食物在生长季节后几个月中保持良好。
Cold storage in a freezer, however, can keep foods in good condition for months after the growing season.
严酷的山区寒冬使得作物短暂的生长季节戛然而止，人们常年在饥饿中苟延生存。
A harsh mountain winter ends the short planting season abruptly. The margin between starvation and survival is slender.
五月曾经是夏季这个生长季节到来的标志，同时它也表明农业和人类繁衍重焕生机。
Beltane once marked the arrival of the summer growing season as well as the rebirth of agricultural-and human-fertility.
虽然暖冬有助于为农民延长生长季节，但它同样也有助于昆虫的生长和疾病的传播。
While warmer winters will benefit farmers by lengthening the growing season, it will also help insects and spreading diseases.
生长季节的定义为：春天最后一次霜冻到秋天第一次霜冻之间这段时间。
The growing season is defined as the period between the last frost in spring and first frost in the fall.
由于合适的耕种地减少以及生长季节的减短，粮食生产有可能严重受到影响。
Food production is likely to be severely affected by a decrease in suitable farm land and decrease in the length of growing seasons.
即使在干旱条件下，树木能经常提供食物和挣钱的办法，直到下一个生长季节。
Even during the arid seasons, trees can provide food and means of making money until the next growth season.
在顺利的条件下，一个人在一个生长季节能够提供50-200个全同胞家系。
Under favourable conditions, one man can produce 50 to 200 full-sib families in a single breeding season.
即便就算是这样，他说，地球的不断升温也是一种良性的变化，它能延长北半球的生长季节。
Even if it has been, he said, the heating of the planet will be beneficial, resulting in longer growing seasons in the Northern Hemisphere.
在2008年，加州面临的一个更引人注目的生长季节里，有霜冻，热浪和野火烟雾。
In2008, California faced one of its more dramatic growing seasons in years, with frost, heat waves and wildfire smoke.
在2008年，加州面临的一个更引人注目的生长季节里，有霜冻，热浪和野火烟雾。
In 2008, California faced one of its more dramatic growing seasons in years, with frost, heat waves and wildfire smoke.
这里是一些科学家们的发现：在过去的19年间，美国北部地区的生长季节延长了10到14天。
Here are some of the findings by scientists: the growing season has increased by ten to fourteen days in northern parts of the United States over the last nineteen years.
赵和阮宁的分析表明，自2000年以来，高纬度北半球生态系统继续受益于较高温度和较长生长季节。
Zhao and Running's analysis showed that since 2000, high-latitude Northern Hemisphere ecosystems have continued to benefit from warmer temperatures and a longer growing season.
方法：在枸杞生长季节调查枸杞害虫及其天敌种类，定期、定点调查害虫及天敌发生数量。
Method: the kinds and number of pests and their natural enemies were investigated at regular intervals and on the fixed trees.
方法：在枸杞生长季节调查枸杞害虫及其天敌种类，定期、定点调查害虫及天敌发生数量。
Method: the kinds and number of pests and their natural enemies were investigated at regular intervals and on the fixed trees.
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