●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
