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natural afforestation
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  “natural afforestation”译为未确定词的双语例句
     2: enclosure of the hills for natural afforestation and vegetation recover;
     2.封育恢复植被;
短句来源
     By combining natural afforestation with ari ficial improving regeneration, mixed forests of multiple species soon took shape and tie volumes of trees increased by 115~219 percent. Thc physical property of the soil in ths stand was better than that of pure forest of Chinese-fir. The water retaining capicity of sol increased by 57~92 percent.
     通过改造可很快的形成多树种的混交林,林木材积生长提高115%~219%,土壤物理性比杉木纯林好,土壤贮水量比杉木纯林提高57%~92%,有良好的生态经济效益。
短句来源
  相似匹配句对
     Natural.
     Natural(天然等同)相近。
短句来源
     The natural recovery of the forest fire vestige,afforestation and its effect
     森林火灾迹地自然恢复与人工林林分结构及效应研究
短句来源
     2: enclosure of the hills for natural afforestation and vegetation recover;
     2.封育恢复植被;
短句来源
     NATURAL WORLD
     本色世界
短句来源
     Afforestation of Expressway
     高速公路绿化研究
短句来源
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  natural afforestation
They show that open and closed forests have markedly expanded due to natural afforestation of the tundra and increase in the density and productivity of existing forest stands.
      


Limestone is widely distributed in Guangxi. Karst is well-developed. There are more rock mountains with more sloping lands with thin soil layer scattered. Soil formation is slow. The soil loss tolerance in the limestone area is only 68 T/km~2·a, while the preseent soil loss in this region is 100—200T/km~2·a, being much higher than soil loss tolerance. Based on the existing conditions in Guangxi, the author sug gested and discussed some water and soil conservation measures including: 1. afforestation; 2: enclosure...

Limestone is widely distributed in Guangxi. Karst is well-developed. There are more rock mountains with more sloping lands with thin soil layer scattered. Soil formation is slow. The soil loss tolerance in the limestone area is only 68 T/km~2·a, while the preseent soil loss in this region is 100—200T/km~2·a, being much higher than soil loss tolerance. Based on the existing conditions in Guangxi, the author sug gested and discussed some water and soil conservation measures including: 1. afforestation; 2: enclosure of the hills for natural afforestation and vegetation recover; 3. construction of stone-bank terraces; 4. increasing application of chemical fertilizers and soil improvement by subsoiling; and 5. establishment of the eco-objective responsibility system.

广西石灰岩分布较广,喀斯特现象发育,山多石头多,土地零散坡地多,成土缓慢,土层薄。石灰岩地区土壤允许流失量仅为68t/(km~2·a),而现在该区土壤流失量一般为100~200t/(k~2m·a),大大超过允许流失量。作者针对广西实际情况提出并论述了:1.造林绿化;2.封育恢复植被;3.修筑石坎梯田;4.增施肥料,深翻改土;5.建立生态目标责任制等水土保持措施。

According to the principle of ccology,the broad-leaved second growth stand of stoie forcst farm of Anyuan County was improved.By combining natural afforestation with ari ficial improving regeneration, mixed forests of multiple species soon took shape and tie volumes of trees increased by 115~219 percent. Thc physical property of the soil in ths stand was better than that of pure forest of Chinese-fir. The water retaining capicity of sol increased by 57~92 percent. Showing better ecological and economical...

According to the principle of ccology,the broad-leaved second growth stand of stoie forcst farm of Anyuan County was improved.By combining natural afforestation with ari ficial improving regeneration, mixed forests of multiple species soon took shape and tie volumes of trees increased by 115~219 percent. Thc physical property of the soil in ths stand was better than that of pure forest of Chinese-fir. The water retaining capicity of sol increased by 57~92 percent. Showing better ecological and economical benefit. This fac shows: the improvement of second growth stand is a major method in its managment anc an effective way to speed up the growth of forest resource.

安远县国营林场根据生态学原理,对阔叶次生林进行改造,把天然更新和人工改造更新有机地结合起来。通过改造可很快的形成多树种的混交林,林木材积生长提高115%~219%,土壤物理性比杉木纯林好,土壤贮水量比杉木纯林提高57%~92%,有良好的生态经济效益。实践证明,次生林改造是次生林经营的重要措施,是加速培育森林资源的好途径。

According to the principle of ecology, the broad, leaved second growth stand of state forest farm of Anyuan County have been improved. By combining natural afforestation withartificial improving regeneration, multiple species of mixed forest may grow quickly. And the volumes of trees increased by 115~219 per cent. The physical power of soil in this stand is better than pure forest of Chinese, fir. The water retaining capicity of soil increased by 57~92 per cent. And better ecological and economical benefit...

According to the principle of ecology, the broad, leaved second growth stand of state forest farm of Anyuan County have been improved. By combining natural afforestation withartificial improving regeneration, multiple species of mixed forest may grow quickly. And the volumes of trees increased by 115~219 per cent. The physical power of soil in this stand is better than pure forest of Chinese, fir. The water retaining capicity of soil increased by 57~92 per cent. And better ecological and economical benefit have been acquired. Fact shows: the improvement of second growth stand is a major method in its managment and a effective way to speed up the growth of forest resource,

安远县国营林场根据生态学原理,对阔叶次生林进行改造,把天然更新和人工改造更新有机的结合起来。通过改造可很快的形成多树种的混交林,林木材积生长提高115%~219%,土壤物理性比杉木纯林好,土壤贮水量比杉木纯林提高57%~92%,有良好的生态经济效益。实践证明,次生林改造是次生林经营的重要措施,是加速培育森林资源的好途径。

 
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