...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>The International Journal of Sustainable Development and World Ecology >Ecological characteristics of soil water and its relations to landf orm and vegetation in a small semiarid watershed in a loess hilly area of China
【24h】

Ecological characteristics of soil water and its relations to landf orm and vegetation in a small semiarid watershed in a loess hilly area of China

机译：黄土丘陵区半干旱小流域土壤水分生态特征及其与地貌和植被的关系。

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

There is an urgent need to study soil water resources and eco-hydrological characteristics in depth so as to carry forward ecological environmental construction in the Loess Plateau. Soil moisture was measured to a depth of 5 m on 11 sites with different landforms and land uses in a transect of the Zhonglianchuan watershed during 2002. The watershed is located in the northern Yuzhong County, Gansu Province, and is part of a semiarid and loess hilly area. There were different types of soil moisture variations in 2002 on the 11 sites. Soil moisture contents were low on all sites, and the average water contents at 2 to 5-m depth were usually lower than 10% by weight, and the lowest water contents were found in slope land under Medicago saliva and Caragana korshinskii vegetation. The dry soil layer is common in this area, not only under planted vegetation but also under natural vegetation. The soil moisture in a slope segment or area can be increased by collecting and harvesting surface runoff from upslope areas. One effective way to collect runoff is by constructing level terraces, alternating with sloping lands. The proportion of various grasslands, acreage of alfalfa, and sustainable development of the region should be further studied in order to successfully convert cultivated land into grassland.
机译：迫切需要深入研究土壤水资源和生态水文特征，以推进黄土高原地区的生态环境建设。在2002年中连川流域一个样带的11个不同地形和土地利用地点的土壤水分测得深度为5 m。该流域位于甘肃省榆中县北部，是半干旱和黄土的一部分丘陵地区。 2002年，这11个地点的土壤水分变化类型不同。在所有地点，土壤水分含量都很低，并且在2至5米深度处的平均水分含量通常低于10％（重量），而在苜蓿唾液和柠条锦鸡儿植被下的坡地中水分含量最低。在该地区，干燥土壤层很常见，不仅在种植植被下，而且在自然植被下。可以通过收集和收集来自上坡地区的地表径流来增加斜坡段或地区的土壤水分。收集径流的一种有效方法是建造水平梯田，与坡地交替。为了成功地将耕地转化为草地，应该进一步研究各种草地的比例，苜蓿的种植面积以及该地区的可持续发展。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号