Rangeland Degradation and Recovery in China’s Pastoral Lands
The purpose of this book is to provide reference material for those responsible for grazing land management in China and its long-term consequences (environmental, social and economic). It responds to the urgent need to collate and review some of the major degradation experienced in China’s vast...
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| Những tác giả chính: | , , , , |
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| Định dạng: | Sách |
| Ngôn ngữ: | English |
| Được phát hành: |
CABI
2014
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| Những chủ đề: | |
| Truy cập trực tuyến: | https://scholar.dlu.edu.vn/thuvienso/handle/DLU123456789/36818 |
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| Thư viện lưu trữ: | Thư viện Trường Đại học Đà Lạt |
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| Tóm tắt: | The purpose of this book is to provide reference material for those responsible for grazing land management in China and its long-term consequences (environmental, social and economic). It responds
to the urgent need to collate and review some of the major degradation experienced in China’s vast
pastoral lands.
In this volume, an outline is presented of the major biological processes and socio-economic influences that operate in selected pastoral rangelands in China. Consideration is given to how these processes and influences can be manipulated to make best use of these important land resources.
Drought/degradation episodes in the rangelands affect not only all components of the resource
(domestic livestock, native flora and fauna, soil and biodiversity) but also all those people living and
deriving a livelihood from the resource (herder families, rural communities and the government).
In this book, we have confined our analysis to the impact on the resource from a rangeland user’s
perspective, but we recognize the much wider impacts and urge fellow researchers to take up the challenge of addressing the environmental and social impacts of these major land degradation episodes.
The historical case studies described in the book represent a failure to manage for the extreme
climate variability that characterizes north and west China’s vast arid rangelands. Thus, they represent
an historical ‘test bed’ for our current scientific understanding of rangelands and government and land
user responses.
The early signs of degradation of the forage resource and extreme drought (extensive areas of
bare ground, dust and sandstorms, delayed recovery of perennial pastures, death of trees and shrubs)
are apparent, but our science is not yet good enough to address the multiplicity of controversial issues
such as:
1. The quantification of the resource damage due to livestock in contrast to the effects of extreme
climate variability (separating the signal from the noise).
2. The quantification of global warming/greenhouse effects on China’s climate in comparison to the
natural background variability of the climate system which occurs on interannual, decadal and longer
timescales. |
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