中高纬度地区的降雨量在过去的20到30年间稳步上升了。
In the middle to high latitudes rainfall has risen steadily over the last 20-30 years.
这种情况在中高纬度地区的树木中尤其常见，这些树木往往在山脊上长得更高；而热带地区的树木则往往在山谷中会长得更高。
This is particularly true for trees in the middle and upper latitudes, which tend to attain greater heights on ridges, whereas in the tropics the trees reach their greater heights in the valleys.
植被LAI与温度的总体正相关的最大值出现在北半球的中高纬度地区；
The results show a high correlation between the annual cycles of temperature and LAI in middle and high latitudes of the Northern Hemisphere.
植被LAI与温度的总体正相关的最大值出现在北半球的中高纬度地区；
The results show a high correlation between the annual cycles of temperature and LAI in middle and high latitudes of the Northern Hemisphere.
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