●Prefaceⅰ
Chapter 1 1O
ur State of Knowledge:Yak Research in China1
1.1 Background 1
1.2Advances in various fields of yak science 2
References 11
Chapter 216
Major Production Systems in Tibet16
2.1 Background 16
2.2Materials and methods 17
2.3Results and discussion 19
2.4Main issues and challenges41
2.5 Conclusions 43
References 45
Chapter 347
Assessing Dry Matter Availability in Tibetan Grasslands Using Ground-Level Remotely-Sensed Data 47
3.1 Background 47
3.2Materials and Methods 50
3.3Results and Discussion52
3.4 Conclusions 61
References 62
Chapter 464
Mapping and monitoring Tibetan grasslands using64
4.1 Background 64
4.2 Objectives66
4.3Material and methods66
4.4Results and Discussion73
4.5Conclusion and recommendation88
References89
Chapter 594
Modeling yak Production Systems Under94
Grazing Condition in Tibet94
5.1 Background94
5.2Model Development95
5.3System analysis 97
5.4Data collection 101
5.5Algorithm of the model 111
5.6Programming and code of the model 125
5.7Verification of model outputs128
5.8 Validation131
5.9Documentation of the model 137
5.10Inferences:Simulating the productivity of yaks under improved nutritional conditions 139
5.11 Conclusion150
References 151

本書用繫統論相關方法，以草地為基礎，以生物的能量流動為主線，以模型、遙感和地理信息繫統等為技術支撐，以西藏的主要家畜犛牛為例，對發展西藏畜牧業生產繫統進行了探索性的研究，為放牧家畜動態研究提供了一種新穎的理念和方法。

姬秋梅 著