Growth and reproduction and their relationships with soil moisture in artificially established Artemisia sphaerocephala populations of different densities in the Alxa Desert

作者：Zhou Zhi-yu, Fengrui Li, Chen Ya-ming, Caixia Wu, Fu Hua, Xuerui Li · 发表于：Europe PMC (PubMed Central) · 年份：2004 · 被引用次数：2 · 研究领域：Forest, Soil, and Plant Ecology in China、Rangeland Management and Livestock Ecology、Plant Ecology and Soil Science

At the southeastern edge of Tengger Desert in Inner Mongolia of northern China, grassland degradation usually occurs primarily due to improper management regimes in fragile environmental conditions. Over the last several decades, most sandy grasslands in this region have turned into shifting, semi-shifting and semi-fixed sandy lands, corresponding to severe, moderate and light degradation. To curb degradation and alleviate the impacts of degradation on environment and human life in this region, the central and local governments have implemented a variety of measures to restore vegetation on degraded grasslands since the mid 1990s. One of these measures is revegetation by planting indigenous shrubs and semi-shrubs (e.g. Artemisia sphaerocephala) through air seedling on severely degraded areas. As a result, artificial communities of A. sphaerocephala have been established in many parts of the Tengger desert.