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- Influence of forest cover change on hydrological process and watershed runoff 森林植被变化对水文过程和径流的影响效应
- Forest cover change 森林覆盖变化
- The total forest cover of the earth is decreasing. 地球上森林覆盖的总面积正在减少。
- Luxuriant forests covered the hills. 山上长满茂密的树林。
- Percentage of forest cover in different historic periods of China. 中国历代森林覆盖率的探讨。
- Woodland forest cover of more than 90% canopy density of 0.8. 林地森林覆盖率达90%25以上,林冠郁闭度为0.8。
- Southern mountain forest cover in the main vegetation. 南部山区植被以森林覆盖为主。
- Once forest cover does start increasing, the rate of extinction should dwindle. 一旦森林覆盖开始增加,灭绝的速度应该变小。
- These forests cover a broad span of latitudes. 这些森林绵延在多个纬度上。
- The driving factors of land use is one of the hot and key component of land use and cover change research (LUCC). 土地利用变化的驱动要素研究是当前土地利用/土地覆盖变化(LUCC)研究的热点和关键问题之一。
- Land utilization &land cover change is one of the core issues on present global change research. 摘要土地利用/土地覆盖变化是目前全球变化研究的核心主题之一。
- Remnants of the original forest cover, either scrub forest or well-developed woodlands, are still found in steep ravines. 在陡峭的深谷,仍有昔日森林的残迹,多为灌林或茂密林地。
- Second growth forest covers a land of nearly 200 mu. 这片次生林大约有200亩。
- The process of conversion from wetland into cropland(CWC) is the main feature of land cover change in Sanjiang plain in the past 50 years. 到2005年,除洪河自然保护区及靠近黑龙江和乌苏里江边缘地区外,研究区的大部分都成为耕地景观高梯度分布区。
- Turner JTB L,Skole D,Sanderson S.1995.Land Use and Land Cover Change:Science/Research Plan[R].IGBP Report,No.35 and HDP Report No.7,Stovkhholm,Geneva. 李秀彬.;1996
- Luxuriant forests covered the hillside. 山坡上长满茂密的树林。
- Turner B.L.II et al., 1995, Land-use and land cover change: Science / Research plan. IGBP Report No.35 and HDP Report No.7. Stockholm and Geneva. 中国科学院地理研究所,1999年,“陆地系统科学与地理综合:黄秉维院士学术思想研讨会文集”,科学出版社。
- Forest cover in China now stands at 13 .92 percent,lagging far behind the world average level of 25 percent. 中国森林覆盖率为13.;92%25,与世界平均水平25%25的差距还很大。
- Remnants of the original forest cover,either scrub forest or well-developed woodlands,are still found in steep ravines. 在陡峭的深谷,仍有昔日森林的残迹,多为灌林或茂密林地。
- Fifty percent of the land area has a slope greater than 40 degrees and is ecologically suitable for forest cover only. 50%25地区的坡度大于40度,而从生态学上说只适合于森林覆盖。