| Variability in soil moisture under four eco-agricultural models on dry slope land in Yuanmou dry-hot valley |
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| DOI：10.7606/j.issn.1000-7601.2009.02.47 |
| Key Words: eco-agriculture soil moisture dry slope land dry-hot valley Yuanmou Yunnan |
| Author Name | Affiliation | | YANG Yanxian | Institute of Tropical Eco-Agricultural Sciences Yunnan Academy of Agricultural Sciences,Yuanmou,Yunnan 651300,China | | FANG Haidong | Institute of Tropical Eco-Agricultural Sciences Yunnan Academy of Agricultural Sciences,Yuanmou,Yunnan 651300,China | | PAN Zhixian | Institute of Tropical Eco-Agricultural Sciences Yunnan Academy of Agricultural Sciences,Yuanmou,Yunnan 651300,China | | FENG Guangheng | Institute of Tropical Eco-Agricultural Sciences Yunnan Academy of Agricultural Sciences,Yuanmou,Yunnan 651300,China | | SHA Yucang | Institute of Tropical Eco-Agricultural Sciences Yunnan Academy of Agricultural Sciences,Yuanmou,Yunnan 651300,China | | JI Zhonghua | Institute of Tropical Eco-Agricultural Sciences Yunnan Academy of Agricultural Sciences,Yuanmou,Yunnan 651300,China | | DU Bo | Institute of Tropical Eco-Agricultural Sciences Yunnan Academy of Agricultural Sciences,Yuanmou,Yunnan 651300,China | | HE Shoujia | Institute of Tropical Eco-Agricultural Sciences Yunnan Academy of Agricultural Sciences,Yuanmou,Yunnan 651300,China |
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| Abstract: |
| The analysis was made of soil moisture in the 0～40 cm soil profile under four eco-agricultural models on dry slope land in a dry-hot valley.The results showed that soil moisture content was influenced mostly by precipitation, and it had conspicuous difference between rainy and dry seasons.Soil moisture content varied under different modles.Model Ⅱ and Ⅳ had strong water-holding power, while model Ⅲ had the topmost water use efficiency when the precipitation was lack, but model Ⅳ's was the lowest.The seasonal fluctuate on soil moisture of the model Ⅳ was the lowest, but model Ⅲ's was the highest.In rainy season, four models had good water supply ability between soil layers.In dry season, model Ⅱ and Ⅰ had only good water supply ability between soil layers.As the whole, four models had part water-holding power, but model Ⅱ was the best one on synthetical benefit, it will make development on eco-agriculture in the dry-hot valley. |
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