(1) The shelterbelt kept the sand in check.

(2) The Three North Shelterbelt is a forestation undertaking.

(3) Many are planted in the northern shelterbelt, also known as the Great Green Wall.

(4) Growth and yield of wheat and corn under shelterbelt of Chinese jujube and poplar were studied.

(5) In the condition of market economy, Shelterbelt construction also must be in line with material benefits.

(6) Key Shelterbelt Construction Program in North , Northeast and Northwest China and the Lower - Middlethe Yangtze River.

(7) Soil water storage of farmland shelterbelt region increases 2.2 % than CK in growing season.

(8) A medium-thick shelterbelt can reduce wind velocity by more than 10 percent to a distance of 20 times the tree height on the leeward side and three times the height to the windward.

(9) The authors applied drip irrigation in sandy land shelterbelt cultivation for the first time, and discussed the benefits of water saving, energy saving, labour saving and the investment benefits.

(10) The three - north shelterbelt program has brought 1.58 million hectares of desertified land under control.

(11) New situation of Chinese desertification demands transformat ion of the Three-North Forest Shelterbelt Program, which should solve the conf li ctions firstly.

(12) In the upper layer, there are the blocking speed-down zone inter-belt, the whirling speed-down zone behind the belt, the conflux accelerating zone just behind the top of shelterbelt.

(13) The results show that, the whole protection area is composed of primary area leeward shelterbelt from 2.5H to 19H and second area windward shelterbelt within 3.5H.

(14) Ginkgo biloba is the sole survival plant and famous local economic species in China with an aggregative function of fruit, foliage, timber, ornamental, ecology and shelterbelt .

(15) In this paper were studied tree species and allocation model in regeneration of farmland shelterbelt.

(16) Effect of afforestation of Tenth Five of Forth phase of the Shelterbelt in Liaoning Prov.

(17) Site level in Hexi-corridor area was divided into 4 types by comprehensive analyzing the growing stock of stand and soil productivity of all kinds of farmland shelterbelt.