干制过程中，由于表面水分的不断蒸发，食品的水分含量由表至里逐渐增加，因此，食品内部存在一个由表面指向中心的梯度，称为水分梯度
文章详细信息 关键词： 玉米;;水分梯度;;抗旱指数;;收获指数 [gap=1308]Keywords: corn;moisture content gradient;drought resistance;harvest index
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土壤水分梯度 soil moisture gradient
The results showed that: in different water gradient, MDA contents of Pinus densiflora var. zhangwuensis seedlings were less than those of Pinus sylvestris var. mongolica, and both catalase and proline contents of the former were higher than the latter.
结果表明:在不同水分梯度下,彰武松幼苗的丙二醛含量都小于樟子松,过氧化氢酶、脯氨酸含量都高于樟子松。
参考来源 - 彰武松和樟子松不同生长阶段抗旱生理生态特性比较·2,447,543篇论文数据，部分数据来源于NoteExpress
DCA排序结果表明，第一轴反映了光照梯度，第二轴反映了水分梯度。
The results of DCA suggested the first axis showed light gradients and the second axis reflected humidity gradients.
沙地植被在沙丘-丘间低地景观尺度上的分布格局决定于地形及因地形而异的土壤水分梯度。
The vegetation distributing pattern at the scale of dune-lowland lies on the terrain and the soil water gradient.
综合了热量和水分差异的水热积指数等值线与热量梯度和水分梯度均有一定的对应性，与植被类型的对应也较好。
The isopleth of water and thermal product index not only showed better relation to thermal and water gradients but also to vegetation types.
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