春季解冻

Secondly, ephemeral gully erosion in the spring is a little serverer than that in the summer, and soil loss in the spring is 56% of annual value of ephemeral gully ersoion which is 1.8 times of soil loss tolerance in the region.

在主要影响因素上，春季浅沟受冻融、融雪影响显著，在表层土壤解冻、地表裸露和季节性冻土层存在的条件下，融雪及降雨容易造成强烈的浅沟侵蚀；夏季浅沟由暴雨造成。

From left: blocks of icy debris, warmed by the sun, tumble down cliffs of the northern ice cap; swirling dust devils leave tracks on defrosting dune surfaces in the south; as polar ice recedes, the surface erodes in scalloped ridges; during spring in the north, sand dunes emerge from the blanket of frost; starburst patterns are created as ice warms into gas and expands, creating channels spreading out radially; when the gas breaks through the ice, it creates plumes and material is carried downwind.

从左侧起依次是：冰碎块，由于被太阳加热，从北部冰帽的悬崖上滚落；漩涡状尘暴在南部解冻的沙丘表面留下的轨迹；消退过程中，极冰在地面侵蚀出圆齿状脊；在北部的春季，沙丘钻出&霜毯&；星暴图案是在冰融化成气体并不断扩散时形成的，在此过程中形成的沟槽呈放射状向外伸展；冰从固态变成气态时产生的气羽流顺风飘散。

As the spring thaws came, Nansen and Johansen ventured out of their hovel. They wound south through the archipelago by ski and kayak. When a walrus upended Nansen's kayak, they put in at Northbrook Island to dry out. There they began to prepare for a dangerous journey across the open water to Spitsbergen, where they nursed an overly sanguine hope of being rescued by a Norwegian whaling or sealing vessel.

随着春季解冻的开始，南森和约翰森冒险离开了他们的小屋，他们滑雪以及乘坐皮艇向南穿越了群岛；当海象弄翻了他们的皮艇后，他们登上了诺斯布鲁克岛把皮艇晾干，就在那里，他们开始准备一趟穿越斯瓦尔巴特群岛开阔水域的危险旅程，他们对那个水域抱有一份过分乐观的希望，期待能被一艘挪威的捕鲸船或者捕海豹船救起。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。