畜群同时造成大范围土地退化，其中20%的牧场因过度放牧、土壤板结和侵蚀而退化。
At the same time herds cause wide-scale land degradation, with about 20 percent of pastures considered as degraded through overgrazing, compaction and erosion.
荒漠化是通过一种或多种营力过程造成的土地退化过程。
Desertification is the process of land degradation resulting from a process or combination of processes.
有各种原因造成的土地干旱退化，半干旱和干燥低湿地区。比如，气候变化和人类活动所致。
Land degradation in arid, semi-arid and dry sub-humid areas resulting from various factors, including climate variations and human activities.
指出正是由于不合理的人类活动，对汾河上游流域的环境产生了重大的影响，造成了植被的破坏、野生动物濒临绝迹、水土流失和土地退化的加剧。 。
Secondly, , wild animals lost their natural living environment owing to vegetation destruction, so some animals now become rarer and rarer besides of macro-animals being extinct, and so on.
土壤侵蚀会导致土地资源的退化，造成环境恶化。
Soil erosion results in land degeneration and environmental degradation, and influences weather change.
沙漠化是干旱、半干旱及部分半湿润地区由于人地关系不相协调所造成的以风沙活动为主要标志的土地退化。
The aeolian desertification is a land degradation characterized by wind erosion mainly resulted from the excessive human activities in arid, semiarid and part of sub-humid regions in Northern Chian.
也许第二重要的问题是荒漠化和土地退化，这主要是由于牧场和农田的过度利用造成的。
Maybe the second important problem would be desertification and degradation of land mostly due to overuse of pastures and other agricultural land.
指出正是由于不合理的人类活动，对汾河上游流域的环境产生了重大的影响，造成了植被的破坏、野生动物濒临绝迹、水土流失和土地退化的加剧。
Secondly, wild animals lost their natural living environment owing to vegetation destruction, so some animals now become rarer and rarer besides of macro-animals being extinct, and so on.
指出正是由于不合理的人类活动，对汾河上游流域的环境产生了重大的影响，造成了植被的破坏、野生动物濒临绝迹、水土流失和土地退化的加剧。
Secondly, wild animals lost their natural living environment owing to vegetation destruction, so some animals now become rarer and rarer besides of macro-animals being extinct, and so on.
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