The distribution characteristics of soil water in Wangdonggou watershed in gully region of the loess plateau are studied.

以長武王東溝小流域為研究對象，研究了黃土高原溝壑區(qū)小流域的土壤水分分布特征色免费网站。

Effects of the restoration of vegetation in hillside on the gully erosion .

坡面植被恢復對溝道侵蝕產(chǎn)沙的影響永久免费观看的毛片app。

Conditions that are correlated with accelerated deposition include drainage area, gully development, and texture of source material.

與加速沉積有關(guān)的條件包括流域面積，溝壑發(fā)育狀況和土壤結(jié)構(gòu)等欧洲无码一区二区。

The body of the gully dwarf lay before him, her face pinched and starved, her eyes wide with

溪谷矮人的身體就躺在他前面日韩在线播放www，她的雙頰因為過度饑餓而凹陷。

Gully system is the sand source and key part of the Loess Plateau.

溝道系統(tǒng)是黃土高原地區(qū)主要的侵蝕產(chǎn)沙區(qū)欧美老熟女的性爱视频，也是小流域綜合治理的關(guān)鍵部位欧美成年。

Ephemeral gully erosion is a common type of water erosion and responsible for heavy damage to agricultural land.

淺溝侵蝕是東北黑土區(qū)坡耕地上常見的侵蝕形式，對耕地造成了嚴重的破壞免费一级a毛片在线播放。

He fell head over heels into the gully.

他一個跟斗跌進了溝里欧美老妇性BBBBXXXX性。

This used to be a bleak and barren gully.

過去這里是荒涼的窮山溝。

He took off his shoes and waded across the shallow gully .

他脫下鞋子涉過了淺水溝日本乱人伦A综艺在线观看。

Gully erosion is an important kind of soil erosion, which is not only a key process resulting in soil degradation, but also a major source of sediments in rivers.

沖溝侵蝕是一種重要的土壤侵蝕方式国产精品免费久久久久影院无码，它不但是導致土地退化的一個重要過程，還是江河泥沙的一個主要來源[1]草碰在线播。