| 1. | Interspecific association and niche of forest vegetation in rocky mountain area of north of china
华北土石山区天然植被种间联结和生态位研究 |
| 2. | Chapter 6 , the author explore the calculation methods of ecology water demand about nature vegetation , river , lake in tarim river watershed
第六章探讨了塔里木河流域的天然植被、河流和湖泊的生态需水量的计算方法，并计算了塔里木河流域的生态需水量。 |
| 3. | Probably half the world ' s species live in some 25 , mostly forested , tropical areas , where human actions have already removed more than 70 percent of the natural vegetation
世界上约有半数的物种居住在约莫25个热带地区，大多为热带森林，而人类活动已将这些地区70 %以上的天然植被给移除了。 |
| 4. | The holocene loess - soil sequence in the loess plateau constitutes an excellent record of evolution of soil formation , monsoonal climate , aeolian dust accumulation and influences of arable farming of over 8000 years
长期农牧业的发展，使得天然植被在大多数地方已荡然无存，大片的林地被开垦为农田或被开辟为城市用地。 |
| 5. | Besides enhancing the landscape quality of the city , the natural vegetation cover provides a source of fresh air for the built - up areas and sustains the biodiversity of the woodland ecosystem dominated by native species
天然植被不但可以提高本地景观的素质、为大厦林立的区域带来清新空气，更可维持作为本土物种栖息地的林地生态系统之生物多样性。 |
| 6. | The reproductive strategy of plants in shapotou played an essential role for vegetation stability . high resistance to drought and long life span enableed hedysarum scoparium and caragana korshinski to adapt themselves to the harsh environments
结果表明：在地处干旱半干旱的沙坡头地区，通过机械固沙与植物固沙相结合的防风治沙模式，建立的雨育人工固沙区植被经过多年演替形成的人工?天然植被是稳定的。 |
| 7. | This paper discusses the current situation , types , origins and developing trends of the bank caving , and then puts forwards countermeasures to prevent the geologic hazard by protecting natural vegetation , construction to conserve the banks and restoring grass and forests
本文全面论述了黑龙江、乌苏里江沿岸塌岸的现状、类型、成因及未来发展态势，提出了保护天然植被、护岸工程建设、退耕还林草等防治塌岸的具体措施和对策。 |
| 8. | According to " forestland steady moisture capacity " , water deficiency in the former is only in surface and recovers timely after rain season . but in artificial forestland , there is an apparent shortage especially in deep layer , so it affects growth and development of vegetation
以“林地稳定持水量”为依据，天然林地水分亏缺不严重，只在浅层形成了轻度亏缺，并在雨季后能得到及时的恢复；同时这种亏缺并没有影响到了天然植被的发育与演替。 |
| 9. | However the soil moisture content was affected by the type of vegetation growing at different parts of the slope . i tried to account for this effect , by choosing sample points with similar types of vegetation . the distribution and type of native vegetation was highly related to soil moisture
不同植被类型立地土壤水分的剖面特征差异较大，天然植被的土壤水分梯度多为负， 0 ? 400cm土壤上层水分含量比下层高；对照裸坡地和苹果园的土壤水分梯度为正值。 |
