cultivated grassland

With productivity of cultivated grassland maintained at a high level on river land, soil water in the soil layer below 260 cm, which is usually maintained at 5.0% yearly, could not be renewed after rainy and fallow seasons.

川地人工草地在维持高生产力的情况下，260cm以下土壤层出现雨季期间及休闲期后均不能够得到水分补偿而稳定在低湿层。

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Study on the Cultivated Grassland Construction in Loess Hilly-gully Areas Based on Water Balance

黄土丘陵区基于水分平衡的人工草地建设研究

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Studies on the Energy and Material Use Efficiency of Cultivated Grassland and Farmland Ecosystem in the Hilly Regions of Southern China

南方丘陵地区人工草地和旱作农田能量物质利用率

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Study on Suitable Cutting Period of Cultivated Grassland in Black Beach of the Headwater Region of the Three River

三江源区黑土滩人工草地适宜刈割期的研究

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Culture systems of Cultivated Grassland of Gansu Province and it's future

甘肃人工草地的栽培制度及其展望

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The mercury exchange fluxes between soil and air in Chongqing were measured using RA-915+ mercury analyzer and dynamic flux chamber technique. The surface types of ground, including forestland, grassland and cultivated land were studied.

应用RA915+汞分析仪与动力通量箱（DFC）联用技术，在重庆市不同区域选取几种地表类型（3个林地、2个草地和1个耕地）进行了土气界面间汞交换通量的研究。

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Though according to the "Mineral Resources Law" and "Land Management Law" requirement, cultivated land, grassland, forest land damaged by mining enterprises must be relocated and utilized, there are still many defects.

虽然根据《矿产资源法》和《土地管理法》的规定，耕地、草原、林地因采矿受到破坏的，企业必须因地制宜地进行复垦利用，但还是存在很多缺陷。

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The current situation of cultivated grassland and the profit analysis of replacing cropland with pasture in Tongliao district

通辽地区已垦草原现状与退耕还草效果分析

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With the increasing of years, soil organic nutrients and the three enzymatic activity are highest in permanent grassland and lowest in cultivated pasture.

随着草地利用时间的增长，土壤有机质等养分和三种酶活性含量增高，活性增强。

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The biodiversity index of cultivated grassland was also the highest.

刈草草地昆虫群落多样性指数相对较高。

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