查询词典 swidden

Swidden system ; plantation system ; degradation ; soil microbes ; soil nutrition

轮歇系统；种植系统；退化；土壤微生物；土壤养分

From my two field surveys to the hinterlands in 1987 and 1995, respectively, I was shocked by the facts that swidden agriculture still prevailed widely, and some of the villages faced serious soil erosion and water shortages arising from traditional practices.

乡村景观的实地考察说明：这些地区刀耕火种、轮歇耕作仍然盛行，不少居民已经面对着农牧业用地向林区过度扩张所致的水土流失、水源枯竭等严重环境问题。

Dam area of arable land accounts for about one third of the total cultivated area , slightly more than dry paddy field, and another part of the swidden land and no water to ensure that water into the paddy fields, water into dry land, when the "Ray ring fields."

坝区耕地占总耕地面积的三分之一左右，水田略多于旱地，另有一部分轮歇地和无水源保证，有水时成水田，无水时成旱地的&雷响田&。

The studied area is located at the tropical area in Xishuangbanna where biological diversity is very rich but ecosystem is weak and Swidden agriculture is popular. With population growing, extensive cultivation and overuse of soil resources has resulted soil and environmental degradation, and restricted continuous development of countryside.

土壤养分和土壤微生物生长代谢水平的衰退是热带山地退化的重要表现形式，二者的变化基本是一致的，即从热带雨林→ 33a次生林→ 6a轮歇地→ 4a轮歇地→旱谷地→橡胶林→荒草坡呈降低趋势；相对于热带雨林而言，不同利用方式土壤微生物和土壤养分状况均有不同程度的下降，且随退化程度增高减幅增大，土壤微生物衰减的速率比土壤养分的衰减更快。

During the southwards migration from the Tibetan Plateau, the cradle land of the Kachin, the ancestors of the Kachin shifted from the nomadism, the hunting and the gathering to the swidden agriculture.

景颇族先民从其民族发源地青藏高原逐渐往南迁徙的过程中，经历了由游牧——采集——狩猎到刀耕火种的文化衍变。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。