And it's necessary to prove such point of view against some oppugns. The Lake effect, the oasiseffect and desertification have all given proofs of this opinion.
湖泊效应、绿洲效应和沙漠化效应都证明本地水汽比外来水汽容易在本地形成降水；
2
The water vapour transport in oasis is enhanced through downdraft in terrain, making the climatic effect in oasis of mountain valley to enhance as well.
绿洲的水汽输送通过地形下沉气流加强，使山谷绿洲的气候效应得到加强。
3
The resource and distribution of thermal energy have objective and direct proof to the analysis the "cold-island effect" and evaluation of the stability of the oasis in middle and small scale areas.